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OpenCloudOS-Kernel
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Merge branch 'master' of ssh://rsync.linux-nfs.org/home/trondmy/www_sites/rsync.linux-nfs.org/pub/linux/nfs-2.6

This commit is contained in:
Trond Myklebust 2005-10-18 14:24:35 -07:00
parent c8f32be387 6fe43f9e37
commit ba9b543d5b
76 changed files with 1348 additions and 987 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
MAINTAINERS
View File

@ -1618,6 +1618,13 @@ M: vandrove@vc.cvut.cz
L: linux-fbdev-devel@lists.sourceforge.net
S: Maintained
MEGARAID SCSI DRIVERS
P: Neela Syam Kolli
M: Neela.Kolli@engenio.com
S: linux-scsi@vger.kernel.org
W: http://megaraid.lsilogic.com
S: Maintained
MEMORY TECHNOLOGY DEVICES
P: David Woodhouse
M: dwmw2@infradead.org

4
Makefile
View File

@ -660,8 +660,10 @@ quiet_cmd_sysmap = SYSMAP
# Link of vmlinux
# If CONFIG_KALLSYMS is set .version is already updated
# Generate System.map and verify that the content is consistent
# Use + in front of the vmlinux_version rule to silent warning with make -j2
# First command is ':' to allow us to use + in front of the rule
define rule_vmlinux__
:
$(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version))
$(call cmd,vmlinux__)

15
arch/arm/kernel/vmlinux.lds.S
View File

@ -89,13 +89,6 @@ SECTIONS
*(.got) /* Global offset table */
}
. = ALIGN(16);
__ex_table : { /* Exception table */
__start___ex_table = .;
*(__ex_table)
__stop___ex_table = .;
}
RODATA
_etext = .; /* End of text and rodata section */
@ -137,6 +130,14 @@ SECTIONS
. = ALIGN(32);
*(.data.cacheline_aligned)
/*
* The exception fixup table (might need resorting at runtime)
*/
. = ALIGN(32);
__start___ex_table = .;
*(__ex_table)
__stop___ex_table = .;
/*
* and the usual data section
*/

20
arch/arm/mach-l7200/core.c
View File

@ -7,11 +7,17 @@
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/device.h>
#include <asm/types.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/page.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
/*
* IRQ base register
@ -47,6 +53,12 @@ static void l7200_unmask_irq(unsigned int irq)
{
IRQ_ENABLE = 1 << irq;
}
static struct irqchip l7200_irq_chip = {
.ack = l7200_mask_irq,
.mask = l7200_mask_irq,
.unmask = l7200_unmask_irq
};
static void __init l7200_init_irq(void)
{
@ -56,11 +68,9 @@ static void __init l7200_init_irq(void)
FIQ_ENABLECLEAR = 0xffffffff; /* clear all fast interrupt enables */
for (irq = 0; irq < NR_IRQS; irq++) {
irq_desc[irq].valid = 1;
irq_desc[irq].probe_ok = 1;
irq_desc[irq].mask_ack = l7200_mask_irq;
irq_desc[irq].mask = l7200_mask_irq;
irq_desc[irq].unmask = l7200_unmask_irq;
set_irq_chip(irq, &l7200_irq_chip);
set_irq_flags(irq, IRQF_VALID);
set_irq_handler(irq, do_level_IRQ);
}
init_FIQ();

20
arch/arm/mach-pxa/corgi_lcd.c
View File

@ -467,6 +467,7 @@ void corgi_put_hsync(void)
{
if (get_hsync_time)
symbol_put(w100fb_get_hsynclen);
get_hsync_time = NULL;
}
void corgi_wait_hsync(void)
@ -476,20 +477,37 @@ void corgi_wait_hsync(void)
#endif
#ifdef CONFIG_PXA_SHARP_Cxx00
static struct device *spitz_pxafb_dev;
static int is_pxafb_device(struct device * dev, void * data)
{
struct platform_device *pdev = container_of(dev, struct platform_device, dev);
return (strncmp(pdev->name, "pxa2xx-fb", 9) == 0);
}
unsigned long spitz_get_hsync_len(void)
{
if (!spitz_pxafb_dev) {
spitz_pxafb_dev = bus_find_device(&platform_bus_type, NULL, NULL, is_pxafb_device);
if (!spitz_pxafb_dev)
return 0;
}
if (!get_hsync_time)
get_hsync_time = symbol_get(pxafb_get_hsync_time);
if (!get_hsync_time)
return 0;
return pxafb_get_hsync_time(&pxafb_device.dev);
return pxafb_get_hsync_time(spitz_pxafb_dev);
}
void spitz_put_hsync(void)
{
put_device(spitz_pxafb_dev);
if (get_hsync_time)
symbol_put(pxafb_get_hsync_time);
spitz_pxafb_dev = NULL;
get_hsync_time = NULL;
}
void spitz_wait_hsync(void)

5
arch/arm/mach-pxa/generic.c
View File

@ -208,6 +208,11 @@ static struct platform_device pxafb_device = {
.resource = pxafb_resources,
};
void __init set_pxa_fb_parent(struct device *parent_dev)
{
pxafb_device.dev.parent = parent_dev;
}
static struct platform_device ffuart_device = {
.name = "pxa2xx-uart",
.id = 0,

4
arch/arm/mach-pxa/spitz.c
View File

@ -36,7 +36,6 @@
#include <asm/arch/irq.h>
#include <asm/arch/mmc.h>
#include <asm/arch/udc.h>
#include <asm/arch/ohci.h>
#include <asm/arch/pxafb.h>
#include <asm/arch/akita.h>
#include <asm/arch/spitz.h>
@ -304,7 +303,6 @@ static struct platform_device *devices[] __initdata = {
&spitzkbd_device,
&spitzts_device,
&spitzbl_device,
&spitzbattery_device,
};
static void __init common_init(void)
@ -328,7 +326,7 @@ static void __init common_init(void)
platform_add_devices(devices, ARRAY_SIZE(devices));
pxa_set_mci_info(&spitz_mci_platform_data);
pxafb_device.dev.parent = &spitzssp_device.dev;
set_pxa_fb_parent(&spitzssp_device.dev);
set_pxa_fb_info(&spitz_pxafb_info);
}

1
arch/arm/mach-s3c2410/Kconfig
View File

@ -12,6 +12,7 @@ config MACH_ANUBIS
config ARCH_BAST
bool "Simtec Electronics BAST (EB2410ITX)"
select CPU_S3C2410
select ISA
help
Say Y here if you are using the Simtec Electronics EB2410ITX
development board (also known as BAST)

12
arch/m32r/kernel/smp.c
View File

@ -275,12 +275,14 @@ static void flush_tlb_all_ipi(void *info)
*==========================================================================*/
void smp_flush_tlb_mm(struct mm_struct *mm)
{
int cpu_id = smp_processor_id();
int cpu_id;
cpumask_t cpu_mask;
unsigned long *mmc = &mm->context[cpu_id];
unsigned long *mmc;
unsigned long flags;
preempt_disable();
cpu_id = smp_processor_id();
mmc = &mm->context[cpu_id];
cpu_mask = mm->cpu_vm_mask;
cpu_clear(cpu_id, cpu_mask);
@ -343,12 +345,14 @@ void smp_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long va)
{
struct mm_struct *mm = vma->vm_mm;
int cpu_id = smp_processor_id();
int cpu_id;
cpumask_t cpu_mask;
unsigned long *mmc = &mm->context[cpu_id];
unsigned long *mmc;
unsigned long flags;
preempt_disable();
cpu_id = smp_processor_id();
mmc = &mm->context[cpu_id];
cpu_mask = mm->cpu_vm_mask;
cpu_clear(cpu_id, cpu_mask);

33
arch/mips/pci/fixup-tb0226.c
View File

@ -1,7 +1,7 @@
/*
* fixup-tb0226.c, The TANBAC TB0226 specific PCI fixups.
*
* Copyright (C) 2002-2004 Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
* Copyright (C) 2002-2005 Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -20,6 +20,7 @@
#include <linux/init.h>
#include <linux/pci.h>
#include <asm/vr41xx/giu.h>
#include <asm/vr41xx/tb0226.h>
int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
@ -29,42 +30,42 @@ int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
switch (slot) {
case 12:
vr41xx_set_irq_trigger(GD82559_1_PIN,
TRIGGER_LEVEL,
SIGNAL_THROUGH);
vr41xx_set_irq_level(GD82559_1_PIN, LEVEL_LOW);
IRQ_TRIGGER_LEVEL,
IRQ_SIGNAL_THROUGH);
vr41xx_set_irq_level(GD82559_1_PIN, IRQ_LEVEL_LOW);
irq = GD82559_1_IRQ;
break;
case 13:
vr41xx_set_irq_trigger(GD82559_2_PIN,
TRIGGER_LEVEL,
SIGNAL_THROUGH);
vr41xx_set_irq_level(GD82559_2_PIN, LEVEL_LOW);
IRQ_TRIGGER_LEVEL,
IRQ_SIGNAL_THROUGH);
vr41xx_set_irq_level(GD82559_2_PIN, IRQ_LEVEL_LOW);
irq = GD82559_2_IRQ;
break;
case 14:
switch (pin) {
case 1:
vr41xx_set_irq_trigger(UPD720100_INTA_PIN,
TRIGGER_LEVEL,
SIGNAL_THROUGH);
IRQ_TRIGGER_LEVEL,
IRQ_SIGNAL_THROUGH);
vr41xx_set_irq_level(UPD720100_INTA_PIN,
LEVEL_LOW);
IRQ_LEVEL_LOW);
irq = UPD720100_INTA_IRQ;
break;
case 2:
vr41xx_set_irq_trigger(UPD720100_INTB_PIN,
TRIGGER_LEVEL,
SIGNAL_THROUGH);
IRQ_TRIGGER_LEVEL,
IRQ_SIGNAL_THROUGH);
vr41xx_set_irq_level(UPD720100_INTB_PIN,
LEVEL_LOW);
IRQ_LEVEL_LOW);
irq = UPD720100_INTB_IRQ;
break;
case 3:
vr41xx_set_irq_trigger(UPD720100_INTC_PIN,
TRIGGER_LEVEL,
SIGNAL_THROUGH);
IRQ_TRIGGER_LEVEL,
IRQ_SIGNAL_THROUGH);
vr41xx_set_irq_level(UPD720100_INTC_PIN,
LEVEL_LOW);
IRQ_LEVEL_LOW);
irq = UPD720100_INTC_IRQ;
break;
default:

3
arch/ppc64/kernel/pmac_setup.c
View File

@ -115,7 +115,7 @@ static void __pmac pmac_show_cpuinfo(struct seq_file *m)
/* find motherboard type */
seq_printf(m, "machine\t\t: ");
np = find_devices("device-tree");
np = of_find_node_by_path("/");
if (np != NULL) {
pp = (char *) get_property(np, "model", NULL);
if (pp != NULL)
@ -133,6 +133,7 @@ static void __pmac pmac_show_cpuinfo(struct seq_file *m)
}
seq_printf(m, "\n");
}
of_node_put(np);
} else
seq_printf(m, "PowerMac\n");

377
arch/sparc64/kernel/pci_iommu.c
View File

@ -49,12 +49,6 @@ static void __iommu_flushall(struct pci_iommu *iommu)
/* Ensure completion of previous PIO writes. */
(void) pci_iommu_read(iommu->write_complete_reg);
/* Now update everyone's flush point. */
for (entry = 0; entry < PBM_NCLUSTERS; entry++) {
iommu->alloc_info[entry].flush =
iommu->alloc_info[entry].next;
}
}
#define IOPTE_CONSISTENT(CTX) \
@ -80,120 +74,117 @@ static void inline iopte_make_dummy(struct pci_iommu *iommu, iopte_t *iopte)
iopte_val(*iopte) = val;
}
void pci_iommu_table_init(struct pci_iommu *iommu, int tsbsize)
/* Based largely upon the ppc64 iommu allocator. */
static long pci_arena_alloc(struct pci_iommu *iommu, unsigned long npages)
{
int i;
struct pci_iommu_arena *arena = &iommu->arena;
unsigned long n, i, start, end, limit;
int pass;
tsbsize /= sizeof(iopte_t);
limit = arena->limit;
start = arena->hint;
pass = 0;
for (i = 0; i < tsbsize; i++)
again:
n = find_next_zero_bit(arena->map, limit, start);
end = n + npages;
if (unlikely(end >= limit)) {
if (likely(pass < 1)) {
limit = start;
start = 0;
__iommu_flushall(iommu);
pass++;
goto again;
} else {
/* Scanned the whole thing, give up. */
return -1;
}
}
for (i = n; i < end; i++) {
if (test_bit(i, arena->map)) {
start = i + 1;
goto again;
}
}
for (i = n; i < end; i++)
__set_bit(i, arena->map);
arena->hint = end;
return n;
}
static void pci_arena_free(struct pci_iommu_arena *arena, unsigned long base, unsigned long npages)
{
unsigned long i;
for (i = base; i < (base + npages); i++)
__clear_bit(i, arena->map);
}
void pci_iommu_table_init(struct pci_iommu *iommu, int tsbsize, u32 dma_offset, u32 dma_addr_mask)
{
unsigned long i, tsbbase, order, sz, num_tsb_entries;
num_tsb_entries = tsbsize / sizeof(iopte_t);
/* Setup initial software IOMMU state. */
spin_lock_init(&iommu->lock);
iommu->ctx_lowest_free = 1;
iommu->page_table_map_base = dma_offset;
iommu->dma_addr_mask = dma_addr_mask;
/* Allocate and initialize the free area map. */
sz = num_tsb_entries / 8;
sz = (sz + 7UL) & ~7UL;
iommu->arena.map = kmalloc(sz, GFP_KERNEL);
if (!iommu->arena.map) {
prom_printf("PCI_IOMMU: Error, kmalloc(arena.map) failed.\n");
prom_halt();
}
memset(iommu->arena.map, 0, sz);
iommu->arena.limit = num_tsb_entries;
/* Allocate and initialize the dummy page which we
* set inactive IO PTEs to point to.
*/
iommu->dummy_page = __get_free_pages(GFP_KERNEL, 0);
if (!iommu->dummy_page) {
prom_printf("PCI_IOMMU: Error, gfp(dummy_page) failed.\n");
prom_halt();
}
memset((void *)iommu->dummy_page, 0, PAGE_SIZE);
iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page);
/* Now allocate and setup the IOMMU page table itself. */
order = get_order(tsbsize);
tsbbase = __get_free_pages(GFP_KERNEL, order);
if (!tsbbase) {
prom_printf("PCI_IOMMU: Error, gfp(tsb) failed.\n");
prom_halt();
}
iommu->page_table = (iopte_t *)tsbbase;
for (i = 0; i < num_tsb_entries; i++)
iopte_make_dummy(iommu, &iommu->page_table[i]);
}
static iopte_t *alloc_streaming_cluster(struct pci_iommu *iommu, unsigned long npages)
static inline iopte_t *alloc_npages(struct pci_iommu *iommu, unsigned long npages)
{
iopte_t *iopte, *limit, *first;
unsigned long cnum, ent, flush_point;
long entry;
cnum = 0;
while ((1UL << cnum) < npages)
cnum++;
iopte = (iommu->page_table +
(cnum << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS)));
entry = pci_arena_alloc(iommu, npages);
if (unlikely(entry < 0))
return NULL;
if (cnum == 0)
limit = (iommu->page_table +
iommu->lowest_consistent_map);
else
limit = (iopte +
(1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS)));
iopte += ((ent = iommu->alloc_info[cnum].next) << cnum);
flush_point = iommu->alloc_info[cnum].flush;
first = iopte;
for (;;) {
if (IOPTE_IS_DUMMY(iommu, iopte)) {
if ((iopte + (1 << cnum)) >= limit)
ent = 0;
else
ent = ent + 1;
iommu->alloc_info[cnum].next = ent;
if (ent == flush_point)
__iommu_flushall(iommu);
break;
}
iopte += (1 << cnum);
ent++;
if (iopte >= limit) {
iopte = (iommu->page_table +
(cnum <<
(iommu->page_table_sz_bits - PBM_LOGCLUSTERS)));
ent = 0;
}
if (ent == flush_point)
__iommu_flushall(iommu);
if (iopte == first)
goto bad;
}
/* I've got your streaming cluster right here buddy boy... */
return iopte;
bad:
printk(KERN_EMERG "pci_iommu: alloc_streaming_cluster of npages(%ld) failed!\n",
npages);
return NULL;
return iommu->page_table + entry;
}
static void free_streaming_cluster(struct pci_iommu *iommu, dma_addr_t base,
unsigned long npages, unsigned long ctx)
static inline void free_npages(struct pci_iommu *iommu, dma_addr_t base, unsigned long npages)
{
unsigned long cnum, ent;
cnum = 0;
while ((1UL << cnum) < npages)
cnum++;
ent = (base << (32 - IO_PAGE_SHIFT + PBM_LOGCLUSTERS - iommu->page_table_sz_bits))
>> (32 + PBM_LOGCLUSTERS + cnum - iommu->page_table_sz_bits);
/* If the global flush might not have caught this entry,
* adjust the flush point such that we will flush before
* ever trying to reuse it.
*/
#define between(X,Y,Z) (((Z) - (Y)) >= ((X) - (Y)))
if (between(ent, iommu->alloc_info[cnum].next, iommu->alloc_info[cnum].flush))
iommu->alloc_info[cnum].flush = ent;
#undef between
}
/* We allocate consistent mappings from the end of cluster zero. */
static iopte_t *alloc_consistent_cluster(struct pci_iommu *iommu, unsigned long npages)
{
iopte_t *iopte;
iopte = iommu->page_table + (1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS));
while (iopte > iommu->page_table) {
iopte--;
if (IOPTE_IS_DUMMY(iommu, iopte)) {
unsigned long tmp = npages;
while (--tmp) {
iopte--;
if (!IOPTE_IS_DUMMY(iommu, iopte))
break;
}
if (tmp == 0) {
u32 entry = (iopte - iommu->page_table);
if (entry < iommu->lowest_consistent_map)
iommu->lowest_consistent_map = entry;
return iopte;
}
}
}
return NULL;
pci_arena_free(&iommu->arena, base >> IO_PAGE_SHIFT, npages);
}
static int iommu_alloc_ctx(struct pci_iommu *iommu)
@ -233,7 +224,7 @@ void *pci_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_ad
struct pcidev_cookie *pcp;
struct pci_iommu *iommu;
iopte_t *iopte;
unsigned long flags, order, first_page, ctx;
unsigned long flags, order, first_page;
void *ret;
int npages;
@ -251,9 +242,10 @@ void *pci_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_ad
iommu = pcp->pbm->iommu;
spin_lock_irqsave(&iommu->lock, flags);
iopte = alloc_consistent_cluster(iommu, size >> IO_PAGE_SHIFT);
if (iopte == NULL) {
spin_unlock_irqrestore(&iommu->lock, flags);
iopte = alloc_npages(iommu, size >> IO_PAGE_SHIFT);
spin_unlock_irqrestore(&iommu->lock, flags);
if (unlikely(iopte == NULL)) {
free_pages(first_page, order);
return NULL;
}
@ -262,31 +254,15 @@ void *pci_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_ad
((iopte - iommu->page_table) << IO_PAGE_SHIFT));
ret = (void *) first_page;
npages = size >> IO_PAGE_SHIFT;
ctx = 0;
if (iommu->iommu_ctxflush)
ctx = iommu_alloc_ctx(iommu);
first_page = __pa(first_page);
while (npages--) {
iopte_val(*iopte) = (IOPTE_CONSISTENT(ctx) |
iopte_val(*iopte) = (IOPTE_CONSISTENT(0UL) |
IOPTE_WRITE |
(first_page & IOPTE_PAGE));
iopte++;
first_page += IO_PAGE_SIZE;
}
{
int i;
u32 daddr = *dma_addrp;
npages = size >> IO_PAGE_SHIFT;
for (i = 0; i < npages; i++) {
pci_iommu_write(iommu->iommu_flush, daddr);
daddr += IO_PAGE_SIZE;
}
}
spin_unlock_irqrestore(&iommu->lock, flags);
return ret;
}
@ -296,7 +272,7 @@ void pci_free_consistent(struct pci_dev *pdev, size_t size, void *cpu, dma_addr_
struct pcidev_cookie *pcp;
struct pci_iommu *iommu;
iopte_t *iopte;
unsigned long flags, order, npages, i, ctx;
unsigned long flags, order, npages;
npages = IO_PAGE_ALIGN(size) >> IO_PAGE_SHIFT;
pcp = pdev->sysdata;
@ -306,46 +282,7 @@ void pci_free_consistent(struct pci_dev *pdev, size_t size, void *cpu, dma_addr_
spin_lock_irqsave(&iommu->lock, flags);
if ((iopte - iommu->page_table) ==
iommu->lowest_consistent_map) {
iopte_t *walk = iopte + npages;
iopte_t *limit;
limit = (iommu->page_table +
(1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS)));
while (walk < limit) {
if (!IOPTE_IS_DUMMY(iommu, walk))
break;
walk++;
}
iommu->lowest_consistent_map =
(walk - iommu->page_table);
}
/* Data for consistent mappings cannot enter the streaming
* buffers, so we only need to update the TSB. We flush
* the IOMMU here as well to prevent conflicts with the
* streaming mapping deferred tlb flush scheme.
*/
ctx = 0;
if (iommu->iommu_ctxflush)
ctx = (iopte_val(*iopte) & IOPTE_CONTEXT) >> 47UL;
for (i = 0; i < npages; i++, iopte++)
iopte_make_dummy(iommu, iopte);
if (iommu->iommu_ctxflush) {
pci_iommu_write(iommu->iommu_ctxflush, ctx);
} else {
for (i = 0; i < npages; i++) {
u32 daddr = dvma + (i << IO_PAGE_SHIFT);
pci_iommu_write(iommu->iommu_flush, daddr);
}
}
iommu_free_ctx(iommu, ctx);
free_npages(iommu, dvma, npages);
spin_unlock_irqrestore(&iommu->lock, flags);
@ -372,25 +309,27 @@ dma_addr_t pci_map_single(struct pci_dev *pdev, void *ptr, size_t sz, int direct
iommu = pcp->pbm->iommu;
strbuf = &pcp->pbm->stc;
if (direction == PCI_DMA_NONE)
BUG();
if (unlikely(direction == PCI_DMA_NONE))
goto bad_no_ctx;
oaddr = (unsigned long)ptr;
npages = IO_PAGE_ALIGN(oaddr + sz) - (oaddr & IO_PAGE_MASK);
npages >>= IO_PAGE_SHIFT;
spin_lock_irqsave(&iommu->lock, flags);
base = alloc_npages(iommu, npages);
ctx = 0;
if (iommu->iommu_ctxflush)
ctx = iommu_alloc_ctx(iommu);
spin_unlock_irqrestore(&iommu->lock, flags);
base = alloc_streaming_cluster(iommu, npages);
if (base == NULL)
if (unlikely(!base))
goto bad;
bus_addr = (iommu->page_table_map_base +
((base - iommu->page_table) << IO_PAGE_SHIFT));
ret = bus_addr | (oaddr & ~IO_PAGE_MASK);
base_paddr = __pa(oaddr & IO_PAGE_MASK);
ctx = 0;
if (iommu->iommu_ctxflush)
ctx = iommu_alloc_ctx(iommu);
if (strbuf->strbuf_enabled)
iopte_protection = IOPTE_STREAMING(ctx);
else
@ -401,12 +340,13 @@ dma_addr_t pci_map_single(struct pci_dev *pdev, void *ptr, size_t sz, int direct
for (i = 0; i < npages; i++, base++, base_paddr += IO_PAGE_SIZE)
iopte_val(*base) = iopte_protection | base_paddr;
spin_unlock_irqrestore(&iommu->lock, flags);
return ret;
bad:
spin_unlock_irqrestore(&iommu->lock, flags);
iommu_free_ctx(iommu, ctx);
bad_no_ctx:
if (printk_ratelimit())
WARN_ON(1);
return PCI_DMA_ERROR_CODE;
}
@ -481,10 +421,13 @@ void pci_unmap_single(struct pci_dev *pdev, dma_addr_t bus_addr, size_t sz, int
struct pci_iommu *iommu;
struct pci_strbuf *strbuf;
iopte_t *base;
unsigned long flags, npages, ctx;
unsigned long flags, npages, ctx, i;
if (direction == PCI_DMA_NONE)
BUG();
if (unlikely(direction == PCI_DMA_NONE)) {
if (printk_ratelimit())
WARN_ON(1);
return;
}
pcp = pdev->sysdata;
iommu = pcp->pbm->iommu;
@ -510,13 +453,14 @@ void pci_unmap_single(struct pci_dev *pdev, dma_addr_t bus_addr, size_t sz, int
/* Step 1: Kick data out of streaming buffers if necessary. */
if (strbuf->strbuf_enabled)
pci_strbuf_flush(strbuf, iommu, bus_addr, ctx, npages, direction);
pci_strbuf_flush(strbuf, iommu, bus_addr, ctx,
npages, direction);
/* Step 2: Clear out first TSB entry. */
iopte_make_dummy(iommu, base);
/* Step 2: Clear out TSB entries. */
for (i = 0; i < npages; i++)
iopte_make_dummy(iommu, base + i);
free_streaming_cluster(iommu, bus_addr - iommu->page_table_map_base,
npages, ctx);
free_npages(iommu, bus_addr - iommu->page_table_map_base, npages);
iommu_free_ctx(iommu, ctx);
@ -621,6 +565,8 @@ int pci_map_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int
pci_map_single(pdev,
(page_address(sglist->page) + sglist->offset),
sglist->length, direction);
if (unlikely(sglist->dma_address == PCI_DMA_ERROR_CODE))
return 0;
sglist->dma_length = sglist->length;
return 1;
}
@ -629,21 +575,29 @@ int pci_map_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int
iommu = pcp->pbm->iommu;
strbuf = &pcp->pbm->stc;
if (direction == PCI_DMA_NONE)
BUG();
if (unlikely(direction == PCI_DMA_NONE))
goto bad_no_ctx;
/* Step 1: Prepare scatter list. */
npages = prepare_sg(sglist, nelems);
/* Step 2: Allocate a cluster. */
/* Step 2: Allocate a cluster and context, if necessary. */
spin_lock_irqsave(&iommu->lock, flags);
base = alloc_streaming_cluster(iommu, npages);
base = alloc_npages(iommu, npages);
ctx = 0;
if (iommu->iommu_ctxflush)
ctx = iommu_alloc_ctx(iommu);
spin_unlock_irqrestore(&iommu->lock, flags);
if (base == NULL)
goto bad;
dma_base = iommu->page_table_map_base + ((base - iommu->page_table) << IO_PAGE_SHIFT);
dma_base = iommu->page_table_map_base +
((base - iommu->page_table) << IO_PAGE_SHIFT);
/* Step 3: Normalize DMA addresses. */
used = nelems;
@ -656,30 +610,28 @@ int pci_map_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int
}
used = nelems - used;
/* Step 4: Choose a context if necessary. */
ctx = 0;
if (iommu->iommu_ctxflush)
ctx = iommu_alloc_ctx(iommu);
/* Step 5: Create the mappings. */
/* Step 4: Create the mappings. */
if (strbuf->strbuf_enabled)
iopte_protection = IOPTE_STREAMING(ctx);
else
iopte_protection = IOPTE_CONSISTENT(ctx);
if (direction != PCI_DMA_TODEVICE)
iopte_protection |= IOPTE_WRITE;
fill_sg (base, sglist, used, nelems, iopte_protection);
fill_sg(base, sglist, used, nelems, iopte_protection);
#ifdef VERIFY_SG
verify_sglist(sglist, nelems, base, npages);
#endif
spin_unlock_irqrestore(&iommu->lock, flags);
return used;
bad:
spin_unlock_irqrestore(&iommu->lock, flags);
return PCI_DMA_ERROR_CODE;
iommu_free_ctx(iommu, ctx);
bad_no_ctx:
if (printk_ratelimit())
WARN_ON(1);
return 0;
}
/* Unmap a set of streaming mode DMA translations. */
@ -692,8 +644,10 @@ void pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems,
unsigned long flags, ctx, i, npages;
u32 bus_addr;
if (direction == PCI_DMA_NONE)
BUG();
if (unlikely(direction == PCI_DMA_NONE)) {
if (printk_ratelimit())
WARN_ON(1);
}
pcp = pdev->sysdata;
iommu = pcp->pbm->iommu;
@ -705,7 +659,8 @@ void pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems,
if (sglist[i].dma_length == 0)
break;
i--;
npages = (IO_PAGE_ALIGN(sglist[i].dma_address + sglist[i].dma_length) - bus_addr) >> IO_PAGE_SHIFT;
npages = (IO_PAGE_ALIGN(sglist[i].dma_address + sglist[i].dma_length) -
bus_addr) >> IO_PAGE_SHIFT;
base = iommu->page_table +
((bus_addr - iommu->page_table_map_base) >> IO_PAGE_SHIFT);
@ -726,11 +681,11 @@ void pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems,
if (strbuf->strbuf_enabled)
pci_strbuf_flush(strbuf, iommu, bus_addr, ctx, npages, direction);
/* Step 2: Clear out first TSB entry. */
iopte_make_dummy(iommu, base);
/* Step 2: Clear out the TSB entries. */
for (i = 0; i < npages; i++)
iopte_make_dummy(iommu, base + i);
free_streaming_cluster(iommu, bus_addr - iommu->page_table_map_base,
npages, ctx);
free_npages(iommu, bus_addr - iommu->page_table_map_base, npages);
iommu_free_ctx(iommu, ctx);

44
arch/sparc64/kernel/pci_psycho.c
View File

@ -1207,13 +1207,9 @@ static void psycho_scan_bus(struct pci_controller_info *p)
static void psycho_iommu_init(struct pci_controller_info *p)
{
struct pci_iommu *iommu = p->pbm_A.iommu;
unsigned long tsbbase, i;
unsigned long i;
u64 control;
/* Setup initial software IOMMU state. */
spin_lock_init(&iommu->lock);
iommu->ctx_lowest_free = 1;
/* Register addresses. */
iommu->iommu_control = p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL;
iommu->iommu_tsbbase = p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE;
@ -1240,40 +1236,10 @@ static void psycho_iommu_init(struct pci_controller_info *p)
/* Leave diag mode enabled for full-flushing done
* in pci_iommu.c
*/
pci_iommu_table_init(iommu, IO_TSB_SIZE, 0xc0000000, 0xffffffff);
iommu->dummy_page = __get_free_pages(GFP_KERNEL, 0);
if (!iommu->dummy_page) {
prom_printf("PSYCHO_IOMMU: Error, gfp(dummy_page) failed.\n");
prom_halt();
}
memset((void *)iommu->dummy_page, 0, PAGE_SIZE);
iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page);
/* Using assumed page size 8K with 128K entries we need 1MB iommu page
* table (128K ioptes * 8 bytes per iopte). This is
* page order 7 on UltraSparc.
*/
tsbbase = __get_free_pages(GFP_KERNEL, get_order(IO_TSB_SIZE));
if (!tsbbase) {
prom_printf("PSYCHO_IOMMU: Error, gfp(tsb) failed.\n");
prom_halt();
}
iommu->page_table = (iopte_t *)tsbbase;
iommu->page_table_sz_bits = 17;
iommu->page_table_map_base = 0xc0000000;
iommu->dma_addr_mask = 0xffffffff;
pci_iommu_table_init(iommu, IO_TSB_SIZE);
/* We start with no consistent mappings. */
iommu->lowest_consistent_map =
1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS);
for (i = 0; i < PBM_NCLUSTERS; i++) {
iommu->alloc_info[i].flush = 0;
iommu->alloc_info[i].next = 0;
}
psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE, __pa(tsbbase));
psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE,
__pa(iommu->page_table));
control = psycho_read(p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL);
control &= ~(PSYCHO_IOMMU_CTRL_TSBSZ | PSYCHO_IOMMU_CTRL_TBWSZ);
@ -1281,7 +1247,7 @@ static void psycho_iommu_init(struct pci_controller_info *p)
psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL, control);
/* If necessary, hook us up for starfire IRQ translations. */
if(this_is_starfire)
if (this_is_starfire)
p->starfire_cookie = starfire_hookup(p->pbm_A.portid);
else
p->starfire_cookie = NULL;

39
arch/sparc64/kernel/pci_sabre.c
View File

@ -1267,13 +1267,9 @@ static void sabre_iommu_init(struct pci_controller_info *p,
u32 dma_mask)
{
struct pci_iommu *iommu = p->pbm_A.iommu;
unsigned long tsbbase, i, order;
unsigned long i;
u64 control;
/* Setup initial software IOMMU state. */
spin_lock_init(&iommu->lock);
iommu->ctx_lowest_free = 1;
/* Register addresses. */
iommu->iommu_control = p->pbm_A.controller_regs + SABRE_IOMMU_CONTROL;
iommu->iommu_tsbbase = p->pbm_A.controller_regs + SABRE_IOMMU_TSBBASE;
@ -1295,26 +1291,10 @@ static void sabre_iommu_init(struct pci_controller_info *p,
/* Leave diag mode enabled for full-flushing done
* in pci_iommu.c
*/
pci_iommu_table_init(iommu, tsbsize * 1024 * 8, dvma_offset, dma_mask);
iommu->dummy_page = __get_free_pages(GFP_KERNEL, 0);
if (!iommu->dummy_page) {
prom_printf("PSYCHO_IOMMU: Error, gfp(dummy_page) failed.\n");
prom_halt();
}
memset((void *)iommu->dummy_page, 0, PAGE_SIZE);
iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page);
tsbbase = __get_free_pages(GFP_KERNEL, order = get_order(tsbsize * 1024 * 8));
if (!tsbbase) {
prom_printf("SABRE_IOMMU: Error, gfp(tsb) failed.\n");
prom_halt();
}
iommu->page_table = (iopte_t *)tsbbase;
iommu->page_table_map_base = dvma_offset;
iommu->dma_addr_mask = dma_mask;
pci_iommu_table_init(iommu, PAGE_SIZE << order);
sabre_write(p->pbm_A.controller_regs + SABRE_IOMMU_TSBBASE, __pa(tsbbase));
sabre_write(p->pbm_A.controller_regs + SABRE_IOMMU_TSBBASE,
__pa(iommu->page_table));
control = sabre_read(p->pbm_A.controller_regs + SABRE_IOMMU_CONTROL);
control &= ~(SABRE_IOMMUCTRL_TSBSZ | SABRE_IOMMUCTRL_TBWSZ);
@ -1322,11 +1302,9 @@ static void sabre_iommu_init(struct pci_controller_info *p,
switch(tsbsize) {
case 64:
control |= SABRE_IOMMU_TSBSZ_64K;
iommu->page_table_sz_bits = 16;
break;
case 128:
control |= SABRE_IOMMU_TSBSZ_128K;
iommu->page_table_sz_bits = 17;
break;
default:
prom_printf("iommu_init: Illegal TSB size %d\n", tsbsize);
@ -1334,15 +1312,6 @@ static void sabre_iommu_init(struct pci_controller_info *p,
break;
}
sabre_write(p->pbm_A.controller_regs + SABRE_IOMMU_CONTROL, control);
/* We start with no consistent mappings. */
iommu->lowest_consistent_map =
1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS);
for (i = 0; i < PBM_NCLUSTERS; i++) {
iommu->alloc_info[i].flush = 0;
iommu->alloc_info[i].next = 0;
}
}
static void pbm_register_toplevel_resources(struct pci_controller_info *p,

57
arch/sparc64/kernel/pci_schizo.c
View File

@ -1765,7 +1765,7 @@ static void schizo_pbm_strbuf_init(struct pci_pbm_info *pbm)
static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
{
struct pci_iommu *iommu = pbm->iommu;
unsigned long tsbbase, i, tagbase, database, order;
unsigned long i, tagbase, database;
u32 vdma[2], dma_mask;
u64 control;
int err, tsbsize;
@ -1800,10 +1800,6 @@ static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
prom_halt();
};
/* Setup initial software IOMMU state. */
spin_lock_init(&iommu->lock);
iommu->ctx_lowest_free = 1;
/* Register addresses, SCHIZO has iommu ctx flushing. */
iommu->iommu_control = pbm->pbm_regs + SCHIZO_IOMMU_CONTROL;
iommu->iommu_tsbbase = pbm->pbm_regs + SCHIZO_IOMMU_TSBBASE;
@ -1832,56 +1828,9 @@ static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
/* Leave diag mode enabled for full-flushing done
* in pci_iommu.c
*/
pci_iommu_table_init(iommu, tsbsize * 8 * 1024, vdma[0], dma_mask);
iommu->dummy_page = __get_free_pages(GFP_KERNEL, 0);
if (!iommu->dummy_page) {
prom_printf("PSYCHO_IOMMU: Error, gfp(dummy_page) failed.\n");
prom_halt();
}
memset((void *)iommu->dummy_page, 0, PAGE_SIZE);
iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page);
/* Using assumed page size 8K with 128K entries we need 1MB iommu page
* table (128K ioptes * 8 bytes per iopte). This is
* page order 7 on UltraSparc.
*/
order = get_order(tsbsize * 8 * 1024);
tsbbase = __get_free_pages(GFP_KERNEL, order);
if (!tsbbase) {
prom_printf("%s: Error, gfp(tsb) failed.\n", pbm->name);
prom_halt();
}
iommu->page_table = (iopte_t *)tsbbase;
iommu->page_table_map_base = vdma[0];
iommu->dma_addr_mask = dma_mask;
pci_iommu_table_init(iommu, PAGE_SIZE << order);
switch (tsbsize) {
case 64:
iommu->page_table_sz_bits = 16;
break;
case 128:
iommu->page_table_sz_bits = 17;
break;
default:
prom_printf("iommu_init: Illegal TSB size %d\n", tsbsize);
prom_halt();
break;
};
/* We start with no consistent mappings. */
iommu->lowest_consistent_map =
1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS);
for (i = 0; i < PBM_NCLUSTERS; i++) {
iommu->alloc_info[i].flush = 0;
iommu->alloc_info[i].next = 0;
}
schizo_write(iommu->iommu_tsbbase, __pa(tsbbase));
schizo_write(iommu->iommu_tsbbase, __pa(iommu->page_table));
control = schizo_read(iommu->iommu_control);
control &= ~(SCHIZO_IOMMU_CTRL_TSBSZ | SCHIZO_IOMMU_CTRL_TBWSZ);

7
arch/sparc64/kernel/smp.c
View File

@ -1001,13 +1001,6 @@ void smp_penguin_jailcell(int irq, struct pt_regs *regs)
preempt_enable();
}
extern unsigned long xcall_promstop;
void smp_promstop_others(void)
{
smp_cross_call(&xcall_promstop, 0, 0, 0);
}
#define prof_multiplier(__cpu) cpu_data(__cpu).multiplier
#define prof_counter(__cpu) cpu_data(__cpu).counter

16
arch/sparc64/mm/ultra.S
View File

@ -453,22 +453,6 @@ xcall_flush_dcache_page_spitfire: /* %g1 == physical page address
nop
nop
.globl xcall_promstop
xcall_promstop:
rdpr %pstate, %g2
wrpr %g2, PSTATE_IG | PSTATE_AG, %pstate
rdpr %pil, %g2
wrpr %g0, 15, %pil
sethi %hi(109f), %g7
b,pt %xcc, etrap_irq
109: or %g7, %lo(109b), %g7
flushw
call prom_stopself
nop
/* We should not return, just spin if we do... */
1: b,a,pt %xcc, 1b
nop
.data
errata32_hwbug:

12
arch/sparc64/prom/misc.c
View File

@ -68,19 +68,11 @@ void prom_cmdline(void)
local_irq_restore(flags);
}
#ifdef CONFIG_SMP
extern void smp_promstop_others(void);
#endif
/* Drop into the prom, but completely terminate the program.
* No chance of continuing.
*/
void prom_halt(void)
{
#ifdef CONFIG_SMP
smp_promstop_others();
udelay(8000);
#endif
again:
p1275_cmd("exit", P1275_INOUT(0, 0));
goto again; /* PROM is out to get me -DaveM */
@ -88,10 +80,6 @@ again:
void prom_halt_power_off(void)
{
#ifdef CONFIG_SMP
smp_promstop_others();
udelay(8000);
#endif
p1275_cmd("SUNW,power-off", P1275_INOUT(0, 0));
/* if nothing else helps, we just halt */

5
drivers/acpi/event.c
View File

@ -58,9 +58,8 @@ acpi_system_read_event(struct file *file, char __user * buffer, size_t count,
return_VALUE(-EAGAIN);
result = acpi_bus_receive_event(&event);
if (result) {
return_VALUE(-EIO);
}
if (result)
return_VALUE(result);
chars_remaining = sprintf(str, "%s %s %08x %08x\n",
event.device_class ? event.

3
drivers/char/mbcs.c
View File

@ -830,6 +830,9 @@ static int __init mbcs_init(void)
{
int rv;
if (!ia64_platform_is("sn2"))
return -ENODEV;
// Put driver into chrdevs[]. Get major number.
rv = register_chrdev(mbcs_major, DEVICE_NAME, &mbcs_ops);
if (rv < 0) {

8
drivers/char/n_r3964.c
View File

@ -695,7 +695,7 @@ static void receive_char(struct r3964_info *pInfo, const unsigned char c)
{
TRACE_PE("IDLE - got STX but no space in rx_queue!");
pInfo->state=R3964_WAIT_FOR_RX_BUF;
mod_timer(&pInfo->tmr, R3964_TO_NO_BUF);
mod_timer(&pInfo->tmr, jiffies + R3964_TO_NO_BUF);
break;
}
start_receiving:
@ -705,7 +705,7 @@ start_receiving:
pInfo->last_rx = 0;
pInfo->flags &= ~R3964_ERROR;
pInfo->state=R3964_RECEIVING;
mod_timer(&pInfo->tmr, R3964_TO_ZVZ);
mod_timer(&pInfo->tmr, jiffies + R3964_TO_ZVZ);
pInfo->nRetry = 0;
put_char(pInfo, DLE);
flush(pInfo);
@ -732,7 +732,7 @@ start_receiving:
if(pInfo->flags & R3964_BCC)
{
pInfo->state = R3964_WAIT_FOR_BCC;
mod_timer(&pInfo->tmr, R3964_TO_ZVZ);
mod_timer(&pInfo->tmr, jiffies + R3964_TO_ZVZ);
}
else
{
@ -744,7 +744,7 @@ start_receiving:
pInfo->last_rx = c;
char_to_buf:
pInfo->rx_buf[pInfo->rx_position++] = c;
mod_timer(&pInfo->tmr, R3964_TO_ZVZ);
mod_timer(&pInfo->tmr, jiffies + R3964_TO_ZVZ);
}
}
/* else: overflow-msg? BUF_SIZE>MTU; should not happen? */

2
drivers/input/keyboard/Kconfig
View File

@ -93,7 +93,7 @@ config KEYBOARD_LKKBD
config KEYBOARD_LOCOMO
tristate "LoCoMo Keyboard Support"
depends on SHARP_LOCOMO
depends on SHARP_LOCOMO && INPUT_KEYBOARD
help
Say Y here if you are running Linux on a Sharp Zaurus Collie or Poodle based PDA

2
drivers/input/keyboard/spitzkbd.c
View File

@ -53,7 +53,7 @@ static unsigned char spitzkbd_keycode[NR_SCANCODES] = {
KEY_LEFTCTRL, KEY_1, KEY_3, KEY_5, KEY_6, KEY_7, KEY_9, KEY_0, KEY_BACKSPACE, SPITZ_KEY_EXOK, SPITZ_KEY_EXCANCEL, 0, 0, 0, 0, 0, /* 1-16 */
0, KEY_2, KEY_4, KEY_R, KEY_Y, KEY_8, KEY_I, KEY_O, KEY_P, SPITZ_KEY_EXJOGDOWN, SPITZ_KEY_EXJOGUP, 0, 0, 0, 0, 0, /* 17-32 */
KEY_TAB, KEY_Q, KEY_E, KEY_T, KEY_G, KEY_U, KEY_J, KEY_K, 0, 0, 0, 0, 0, 0, 0, 0, /* 33-48 */
SPITZ_KEY_CALENDER, KEY_W, KEY_S, KEY_F, KEY_V, KEY_H, KEY_M, KEY_L, 0, 0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, /* 49-64 */
SPITZ_KEY_CALENDER, KEY_W, KEY_S, KEY_F, KEY_V, KEY_H, KEY_M, KEY_L, 0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0, /* 49-64 */
SPITZ_KEY_ADDRESS, KEY_A, KEY_D, KEY_C, KEY_B, KEY_N, KEY_DOT, 0, KEY_ENTER, KEY_LEFTSHIFT, 0, 0, 0, 0, 0, 0, /* 65-80 */
SPITZ_KEY_MAIL, KEY_Z, KEY_X, KEY_MINUS, KEY_SPACE, KEY_COMMA, 0, KEY_UP, 0, 0, SPITZ_KEY_FN, 0, 0, 0, 0, 0, /* 81-96 */
KEY_SYSRQ, SPITZ_KEY_JAP1, SPITZ_KEY_JAP2, SPITZ_KEY_CANCEL, SPITZ_KEY_OK, SPITZ_KEY_MENU, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0, 0, 0, 0 /* 97-112 */

4
drivers/input/misc/uinput.c
View File

@ -90,11 +90,11 @@ static inline int uinput_request_reserve_slot(struct uinput_device *udev, struct
static void uinput_request_done(struct uinput_device *udev, struct uinput_request *request)
{
complete(&request->done);
/* Mark slot as available */
udev->requests[request->id] = NULL;
wake_up_interruptible(&udev->requests_waitq);
complete(&request->done);
}
static int uinput_request_submit(struct input_dev *dev, struct uinput_request *request)

2
drivers/media/radio/radio-cadet.c
View File

@ -543,7 +543,7 @@ static int cadet_probe(void)
for(i=0;i<8;i++) {
io=iovals[i];
if(request_region(io,2, "cadet-probe")>=0) {
if (request_region(io, 2, "cadet-probe")) {
cadet_setfreq(1410);
if(cadet_getfreq()==1410) {
release_region(io, 2);

32
drivers/media/video/vpx3220.c
View File

@ -203,7 +203,7 @@ static const unsigned short init_ntsc[] = {
0x8c, 640, /* Horizontal length */
0x8d, 640, /* Number of pixels */
0x8f, 0xc00, /* Disable window 2 */
0xf0, 0x173, /* 13.5 MHz transport, Forced
0xf0, 0x73, /* 13.5 MHz transport, Forced
* mode, latch windows */
0xf2, 0x13, /* NTSC M, composite input */
0xe7, 0x1e1, /* Enable vertical standard
@ -212,38 +212,36 @@ static const unsigned short init_ntsc[] = {
static const unsigned short init_pal[] = {
0x88, 23, /* Window 1 vertical begin */
0x89, 288 + 16, /* Vertical lines in (16 lines
0x89, 288, /* Vertical lines in (16 lines
* skipped by the VFE) */
0x8a, 288 + 16, /* Vertical lines out (16 lines
0x8a, 288, /* Vertical lines out (16 lines
* skipped by the VFE) */
0x8b, 16, /* Horizontal begin */
0x8c, 768, /* Horizontal length */
0x8d, 784, /* Number of pixels
* Must be >= Horizontal begin + Horizontal length */
0x8f, 0xc00, /* Disable window 2 */
0xf0, 0x177, /* 13.5 MHz transport, Forced
0xf0, 0x77, /* 13.5 MHz transport, Forced
* mode, latch windows */
0xf2, 0x3d1, /* PAL B,G,H,I, composite input */
0xe7, 0x261, /* PAL/SECAM set to 288 + 16 lines
* change to 0x241 for 288 lines */
0xe7, 0x241, /* PAL/SECAM set to 288 lines */
};
static const unsigned short init_secam[] = {
0x88, 23 - 16, /* Window 1 vertical begin */
0x89, 288 + 16, /* Vertical lines in (16 lines
0x88, 23, /* Window 1 vertical begin */
0x89, 288, /* Vertical lines in (16 lines
* skipped by the VFE) */
0x8a, 288 + 16, /* Vertical lines out (16 lines
0x8a, 288, /* Vertical lines out (16 lines
* skipped by the VFE) */
0x8b, 16, /* Horizontal begin */
0x8c, 768, /* Horizontal length */
0x8d, 784, /* Number of pixels
* Must be >= Horizontal begin + Horizontal length */
0x8f, 0xc00, /* Disable window 2 */
0xf0, 0x177, /* 13.5 MHz transport, Forced
0xf0, 0x77, /* 13.5 MHz transport, Forced
* mode, latch windows */
0xf2, 0x3d5, /* SECAM, composite input */
0xe7, 0x261, /* PAL/SECAM set to 288 + 16 lines
* change to 0x241 for 288 lines */
0xe7, 0x241, /* PAL/SECAM set to 288 lines */
};
static const unsigned char init_common[] = {
@ -410,6 +408,12 @@ vpx3220_command (struct i2c_client *client,
case DECODER_SET_NORM:
{
int *iarg = arg, data;
int temp_input;
/* Here we back up the input selection because it gets
overwritten when we fill the registers with the
choosen video norm */
temp_input = vpx3220_fp_read(client, 0xf2);
dprintk(1, KERN_DEBUG "%s: DECODER_SET_NORM %d\n",
I2C_NAME(client), *iarg);
@ -449,6 +453,10 @@ vpx3220_command (struct i2c_client *client,
}
decoder->norm = *iarg;
/* And here we set the backed up video input again */
vpx3220_fp_write(client, 0xf2, temp_input | 0x0010);
udelay(10);
}
break;

2
drivers/net/wireless/Kconfig
View File

@ -243,7 +243,7 @@ config IPW_DEBUG
config AIRO
tristate "Cisco/Aironet 34X/35X/4500/4800 ISA and PCI cards"
depends on NET_RADIO && ISA && (PCI || BROKEN)
depends on NET_RADIO && ISA_DMA_API && (PCI || BROKEN)
---help---
This is the standard Linux driver to support Cisco/Aironet ISA and
PCI 802.11 wireless cards.

4
drivers/pci/quirks.c
View File

@ -1233,7 +1233,7 @@ static void __init quirk_alder_ioapic(struct pci_dev *pdev)
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic );
#endif
#ifdef CONFIG_SCSI_SATA
#ifdef CONFIG_SCSI_SATA_INTEL_COMBINED
static void __devinit quirk_intel_ide_combined(struct pci_dev *pdev)
{
u8 prog, comb, tmp;
@ -1310,7 +1310,7 @@ static void __devinit quirk_intel_ide_combined(struct pci_dev *pdev)
request_region(0x170, 8, "libata"); /* port 1 */
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_intel_ide_combined );
#endif /* CONFIG_SCSI_SATA */
#endif /* CONFIG_SCSI_SATA_INTEL_COMBINED */
int pcie_mch_quirk;

14
drivers/pcmcia/soc_common.c
View File

@ -66,7 +66,7 @@ void soc_pcmcia_debug(struct soc_pcmcia_socket *skt, const char *func,
if (pc_debug > lvl) {
printk(KERN_DEBUG "skt%u: %s: ", skt->nr, func);
va_start(args, fmt);
printk(fmt, args);
vprintk(fmt, args);
va_end(args);
}
}
@ -321,8 +321,6 @@ soc_common_pcmcia_get_socket(struct pcmcia_socket *sock, socket_state_t *state)
* less punt all of this work and let the kernel handle the details
* of power configuration, reset, &c. We also record the value of
* `state' in order to regurgitate it to the PCMCIA core later.
*
* Returns: 0
*/
static int
soc_common_pcmcia_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
@ -407,7 +405,7 @@ soc_common_pcmcia_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *m
* the map speed as requested, but override the address ranges
* supplied by Card Services.
*
* Returns: 0 on success, -1 on error
* Returns: 0 on success, -ERRNO on error
*/
static int
soc_common_pcmcia_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *map)
@ -655,8 +653,8 @@ static void soc_pcmcia_cpufreq_unregister(void)
}
#else
#define soc_pcmcia_cpufreq_register()
#define soc_pcmcia_cpufreq_unregister()
static int soc_pcmcia_cpufreq_register(void) { return 0; }
static void soc_pcmcia_cpufreq_unregister(void) {}
#endif
int soc_common_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops, int first, int nr)
@ -738,7 +736,7 @@ int soc_common_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops
goto out_err_5;
}
if ( list_empty(&soc_pcmcia_sockets) )
if (list_empty(&soc_pcmcia_sockets))
soc_pcmcia_cpufreq_register();
list_add(&skt->node, &soc_pcmcia_sockets);
@ -839,7 +837,7 @@ int soc_common_drv_pcmcia_remove(struct device *dev)
release_resource(&skt->res_io);
release_resource(&skt->res_skt);
}
if ( list_empty(&soc_pcmcia_sockets) )
if (list_empty(&soc_pcmcia_sockets))
soc_pcmcia_cpufreq_unregister();
up(&soc_pcmcia_sockets_lock);

5
drivers/scsi/Kconfig
View File

@ -553,6 +553,11 @@ config SCSI_SATA_VITESSE
If unsure, say N.
config SCSI_SATA_INTEL_COMBINED
bool
depends on IDE=y && !BLK_DEV_IDE_SATA && (SCSI_SATA_AHCI || SCSI_ATA_PIIX)
default y
config SCSI_BUSLOGIC
tristate "BusLogic SCSI support"
depends on (PCI || ISA || MCA) && SCSI && ISA_DMA_API

2
drivers/scsi/aacraid/linit.c
View File

@ -453,9 +453,9 @@ static int aac_eh_reset(struct scsi_cmnd* cmd)
/*
* We can exit If all the commands are complete
*/
spin_unlock_irq(host->host_lock);
if (active == 0)
return SUCCESS;
spin_unlock_irq(host->host_lock);
ssleep(1);
spin_lock_irq(host->host_lock);
}

39
drivers/scsi/qlogicpti.c
View File

@ -1119,6 +1119,36 @@ static inline void update_can_queue(struct Scsi_Host *host, u_int in_ptr, u_int
host->sg_tablesize = QLOGICPTI_MAX_SG(num_free);
}
static unsigned int scsi_rbuf_get(struct scsi_cmnd *cmd, unsigned char **buf_out)
{
unsigned char *buf;
unsigned int buflen;
if (cmd->use_sg) {
struct scatterlist *sg;
sg = (struct scatterlist *) cmd->request_buffer;
buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
buflen = sg->length;
} else {
buf = cmd->request_buffer;
buflen = cmd->request_bufflen;
}
*buf_out = buf;
return buflen;
}
static void scsi_rbuf_put(struct scsi_cmnd *cmd, unsigned char *buf)
{
if (cmd->use_sg) {
struct scatterlist *sg;
sg = (struct scatterlist *) cmd->request_buffer;
kunmap_atomic(buf - sg->offset, KM_IRQ0);
}
}
/*
* Until we scan the entire bus with inquiries, go throught this fella...
*/
@ -1145,11 +1175,9 @@ static void ourdone(struct scsi_cmnd *Cmnd)
int ok = host_byte(Cmnd->result) == DID_OK;
if (Cmnd->cmnd[0] == 0x12 && ok) {
unsigned char *iqd;
unsigned int iqd_len;
if (Cmnd->use_sg != 0)
BUG();
iqd = ((unsigned char *)Cmnd->buffer);
iqd_len = scsi_rbuf_get(Cmnd, &iqd);
/* tags handled in midlayer */
/* enable sync mode? */
@ -1163,6 +1191,9 @@ static void ourdone(struct scsi_cmnd *Cmnd)
if (iqd[7] & 0x20) {
qpti->dev_param[tgt].device_flags |= 0x20;
}
scsi_rbuf_put(Cmnd, iqd);
qpti->sbits |= (1 << tgt);
} else if (!ok) {
qpti->sbits |= (1 << tgt);

2
drivers/serial/8250_pnp.c
View File

@ -272,6 +272,8 @@ static const struct pnp_device_id pnp_dev_table[] = {
{ "SUP1421", 0 },
/* SupraExpress 33.6 Data/Fax PnP modem */
{ "SUP1590", 0 },
/* SupraExpress 336i Sp ASVD */
{ "SUP1620", 0 },
/* SupraExpress 33.6 Data/Fax PnP modem */
{ "SUP1760", 0 },
/* Phoebe Micro */

2
drivers/serial/sh-sci.c
View File

@ -967,7 +967,7 @@ static int sci_startup(struct uart_port *port)
#endif
sci_request_irq(s);
sci_start_tx(port, 1);
sci_start_tx(port);
sci_start_rx(port, 1);
return 0;

3
drivers/usb/host/isp116x-hcd.c
View File

@ -326,7 +326,8 @@ static void postproc_atl_queue(struct isp116x *isp116x)
usb_settoggle(udev, ep->epnum,
ep->nextpid ==
USB_PID_OUT,
PTD_GET_TOGGLE(ptd) ^ 1);
PTD_GET_TOGGLE(ptd));
urb->actual_length += PTD_GET_COUNT(ptd);
urb->status = cc_to_error[TD_DATAUNDERRUN];
spin_unlock(&urb->lock);
continue;

3
drivers/usb/input/hid-core.c
View File

@ -1702,10 +1702,7 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
if ((endpoint->bmAttributes & 3) != 3) /* Not an interrupt endpoint */
continue;
/* handle potential highspeed HID correctly */
interval = endpoint->bInterval;
if (dev->speed == USB_SPEED_HIGH)
interval = 1 << (interval - 1);
/* Change the polling interval of mice. */
if (hid->collection->usage == HID_GD_MOUSE && hid_mousepoll_interval > 0)

2
drivers/usb/serial/generic.c
View File

@ -223,7 +223,7 @@ int usb_serial_generic_write_room (struct usb_serial_port *port)
dbg("%s - port %d", __FUNCTION__, port->number);
if (serial->num_bulk_out) {
if (port->write_urb_busy)
if (!(port->write_urb_busy))
room = port->bulk_out_size;
}

9
drivers/video/console/vgacon.c
View File

@ -565,7 +565,11 @@ static int vgacon_switch(struct vc_data *c)
scr_memcpyw((u16 *) c->vc_origin, (u16 *) c->vc_screenbuf,
c->vc_screenbuf_size > vga_vram_size ?
vga_vram_size : c->vc_screenbuf_size);
vgacon_doresize(c, c->vc_cols, c->vc_rows);
if (!(vga_video_num_columns % 2) &&
vga_video_num_columns <= ORIG_VIDEO_COLS &&
vga_video_num_lines <= (ORIG_VIDEO_LINES *
vga_default_font_height) / c->vc_font.height)
vgacon_doresize(c, c->vc_cols, c->vc_rows);
}
return 0; /* Redrawing not needed */
@ -1023,7 +1027,8 @@ static int vgacon_resize(struct vc_data *c, unsigned int width,
if (width % 2 || width > ORIG_VIDEO_COLS ||
height > (ORIG_VIDEO_LINES * vga_default_font_height)/
c->vc_font.height)
return -EINVAL;
/* let svgatextmode tinker with video timings */
return 0;
if (CON_IS_VISIBLE(c) && !vga_is_gfx) /* who knows */
vgacon_doresize(c, width, height);

2
drivers/video/sa1100fb.c
View File

@ -592,6 +592,7 @@ sa1100fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
return ret;
}
#ifdef CONFIG_CPU_FREQ
/*
* sa1100fb_display_dma_period()
* Calculate the minimum period (in picoseconds) between two DMA
@ -606,6 +607,7 @@ static inline unsigned int sa1100fb_display_dma_period(struct fb_var_screeninfo
*/
return var->pixclock * 8 * 16 / var->bits_per_pixel;
}
#endif
/*
* sa1100fb_check_var():

3
drivers/w1/w1.c
View File

@ -77,8 +77,7 @@ static void w1_master_release(struct device *dev)
dev_dbg(dev, "%s: Releasing %s.\n", __func__, md->name);
if (md->nls && md->nls->sk_socket)
sock_release(md->nls->sk_socket);
dev_fini_netlink(md);
memset(md, 0, sizeof(struct w1_master) + sizeof(struct w1_bus_master));
kfree(md);
}

26
fs/aio.c
View File

@ -398,7 +398,7 @@ static struct kiocb fastcall *__aio_get_req(struct kioctx *ctx)
if (unlikely(!req))
return NULL;
req->ki_flags = 1 << KIF_LOCKED;
req->ki_flags = 0;
req->ki_users = 2;
req->ki_key = 0;
req->ki_ctx = ctx;
@ -547,25 +547,6 @@ struct kioctx *lookup_ioctx(unsigned long ctx_id)
return ioctx;
}
static int lock_kiocb_action(void *param)
{
schedule();
return 0;
}
static inline void lock_kiocb(struct kiocb *iocb)
{
wait_on_bit_lock(&iocb->ki_flags, KIF_LOCKED, lock_kiocb_action,
TASK_UNINTERRUPTIBLE);
}
static inline void unlock_kiocb(struct kiocb *iocb)
{
kiocbClearLocked(iocb);
smp_mb__after_clear_bit();
wake_up_bit(&iocb->ki_flags, KIF_LOCKED);
}
/*
* use_mm
* Makes the calling kernel thread take on the specified
@ -796,9 +777,7 @@ static int __aio_run_iocbs(struct kioctx *ctx)
* Hold an extra reference while retrying i/o.
*/
iocb->ki_users++; /* grab extra reference */
lock_kiocb(iocb);
aio_run_iocb(iocb);
unlock_kiocb(iocb);
if (__aio_put_req(ctx, iocb)) /* drop extra ref */
put_ioctx(ctx);
}
@ -1542,7 +1521,6 @@ int fastcall io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb,
spin_lock_irq(&ctx->ctx_lock);
aio_run_iocb(req);
unlock_kiocb(req);
if (!list_empty(&ctx->run_list)) {
/* drain the run list */
while (__aio_run_iocbs(ctx))
@ -1674,7 +1652,6 @@ asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
if (NULL != cancel) {
struct io_event tmp;
pr_debug("calling cancel\n");
lock_kiocb(kiocb);
memset(&tmp, 0, sizeof(tmp));
tmp.obj = (u64)(unsigned long)kiocb->ki_obj.user;
tmp.data = kiocb->ki_user_data;
@ -1686,7 +1663,6 @@ asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
if (copy_to_user(result, &tmp, sizeof(tmp)))
ret = -EFAULT;
}
unlock_kiocb(kiocb);
} else
ret = -EINVAL;

12
fs/exec.c
View File

@ -126,8 +126,7 @@ asmlinkage long sys_uselib(const char __user * library)
struct nameidata nd;
int error;
nd.intent.open.flags = FMODE_READ;
error = __user_walk(library, LOOKUP_FOLLOW|LOOKUP_OPEN, &nd);
error = __user_path_lookup_open(library, LOOKUP_FOLLOW, &nd, FMODE_READ);
if (error)
goto out;
@ -139,7 +138,7 @@ asmlinkage long sys_uselib(const char __user * library)
if (error)
goto exit;
file = dentry_open(nd.dentry, nd.mnt, O_RDONLY);
file = nameidata_to_filp(&nd, O_RDONLY);
error = PTR_ERR(file);
if (IS_ERR(file))
goto out;
@ -167,6 +166,7 @@ asmlinkage long sys_uselib(const char __user * library)
out:
return error;
exit:
release_open_intent(&nd);
path_release(&nd);
goto out;
}
@ -490,8 +490,7 @@ struct file *open_exec(const char *name)
int err;
struct file *file;
nd.intent.open.flags = FMODE_READ;
err = path_lookup(name, LOOKUP_FOLLOW|LOOKUP_OPEN, &nd);
err = path_lookup_open(name, LOOKUP_FOLLOW, &nd, FMODE_READ);
file = ERR_PTR(err);
if (!err) {
@ -504,7 +503,7 @@ struct file *open_exec(const char *name)
err = -EACCES;
file = ERR_PTR(err);
if (!err) {
file = dentry_open(nd.dentry, nd.mnt, O_RDONLY);
file = nameidata_to_filp(&nd, O_RDONLY);
if (!IS_ERR(file)) {
err = deny_write_access(file);
if (err) {
@ -516,6 +515,7 @@ out:
return file;
}
}
release_open_intent(&nd);
path_release(&nd);
}
goto out;

44
fs/locks.c
View File

@ -316,21 +316,22 @@ static int flock_to_posix_lock(struct file *filp, struct file_lock *fl,
/* POSIX-1996 leaves the case l->l_len < 0 undefined;
POSIX-2001 defines it. */
start += l->l_start;
end = start + l->l_len - 1;
if (l->l_len < 0) {
end = start - 1;
start += l->l_len;
}
if (start < 0)
return -EINVAL;
if (l->l_len > 0 && end < 0)
return -EOVERFLOW;
fl->fl_end = OFFSET_MAX;
if (l->l_len > 0) {
end = start + l->l_len - 1;
fl->fl_end = end;
} else if (l->l_len < 0) {
end = start - 1;
fl->fl_end = end;
start += l->l_len;
if (start < 0)
return -EINVAL;
}
fl->fl_start = start; /* we record the absolute position */
fl->fl_end = end;
if (l->l_len == 0)
fl->fl_end = OFFSET_MAX;
if (fl->fl_end < fl->fl_start)
return -EOVERFLOW;
fl->fl_owner = current->files;
fl->fl_pid = current->tgid;
@ -362,14 +363,21 @@ static int flock64_to_posix_lock(struct file *filp, struct file_lock *fl,
return -EINVAL;
}
if (((start += l->l_start) < 0) || (l->l_len < 0))
start += l->l_start;
if (start < 0)
return -EINVAL;
fl->fl_end = start + l->l_len - 1;
if (l->l_len > 0 && fl->fl_end < 0)
return -EOVERFLOW;
fl->fl_end = OFFSET_MAX;
if (l->l_len > 0) {
fl->fl_end = start + l->l_len - 1;
} else if (l->l_len < 0) {
fl->fl_end = start - 1;
start += l->l_len;
if (start < 0)
return -EINVAL;
}
fl->fl_start = start; /* we record the absolute position */
if (l->l_len == 0)
fl->fl_end = OFFSET_MAX;
if (fl->fl_end < fl->fl_start)
return -EOVERFLOW;
fl->fl_owner = current->files;
fl->fl_pid = current->tgid;

95
fs/namei.c
View File

@ -28,6 +28,7 @@
#include <linux/syscalls.h>
#include <linux/mount.h>
#include <linux/audit.h>
#include <linux/file.h>
#include <asm/namei.h>
#include <asm/uaccess.h>
@ -317,6 +318,18 @@ void path_release_on_umount(struct nameidata *nd)
mntput_no_expire(nd->mnt);
}
/**
* release_open_intent - free up open intent resources
* @nd: pointer to nameidata
*/
void release_open_intent(struct nameidata *nd)
{
if (nd->intent.open.file->f_dentry == NULL)
put_filp(nd->intent.open.file);
else
fput(nd->intent.open.file);
}
/*
* Internal lookup() using the new generic dcache.
* SMP-safe
@ -750,6 +763,7 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
struct qstr this;
unsigned int c;
nd->flags |= LOOKUP_CONTINUE;
err = exec_permission_lite(inode, nd);
if (err == -EAGAIN) {
err = permission(inode, MAY_EXEC, nd);
@ -802,7 +816,6 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
if (err < 0)
break;
}
nd->flags |= LOOKUP_CONTINUE;
/* This does the actual lookups.. */
err = do_lookup(nd, &this, &next);
if (err)
@ -1052,6 +1065,70 @@ out:
return retval;
}
static int __path_lookup_intent_open(const char *name, unsigned int lookup_flags,
struct nameidata *nd, int open_flags, int create_mode)
{
struct file *filp = get_empty_filp();
int err;
if (filp == NULL)
return -ENFILE;
nd->intent.open.file = filp;
nd->intent.open.flags = open_flags;
nd->intent.open.create_mode = create_mode;
err = path_lookup(name, lookup_flags|LOOKUP_OPEN, nd);
if (IS_ERR(nd->intent.open.file)) {
if (err == 0) {
err = PTR_ERR(nd->intent.open.file);
path_release(nd);
}
} else if (err != 0)
release_open_intent(nd);
return err;
}
/**
* path_lookup_open - lookup a file path with open intent
* @name: pointer to file name
* @lookup_flags: lookup intent flags
* @nd: pointer to nameidata
* @open_flags: open intent flags
*/
int path_lookup_open(const char *name, unsigned int lookup_flags,
struct nameidata *nd, int open_flags)
{
return __path_lookup_intent_open(name, lookup_flags, nd,
open_flags, 0);
}
/**
* path_lookup_create - lookup a file path with open + create intent
* @name: pointer to file name
* @lookup_flags: lookup intent flags
* @nd: pointer to nameidata
* @open_flags: open intent flags
* @create_mode: create intent flags
*/
int path_lookup_create(const char *name, unsigned int lookup_flags,
struct nameidata *nd, int open_flags, int create_mode)
{
return __path_lookup_intent_open(name, lookup_flags|LOOKUP_CREATE, nd,
open_flags, create_mode);
}
int __user_path_lookup_open(const char __user *name, unsigned int lookup_flags,
struct nameidata *nd, int open_flags)
{
char *tmp = getname(name);
int err = PTR_ERR(tmp);
if (!IS_ERR(tmp)) {
err = __path_lookup_intent_open(tmp, lookup_flags, nd, open_flags, 0);
putname(tmp);
}
return err;
}
/*
* Restricted form of lookup. Doesn't follow links, single-component only,
* needs parent already locked. Doesn't follow mounts.
@ -1416,27 +1493,27 @@ int may_open(struct nameidata *nd, int acc_mode, int flag)
*/
int open_namei(const char * pathname, int flag, int mode, struct nameidata *nd)
{
int acc_mode, error = 0;
int acc_mode, error;
struct path path;
struct dentry *dir;
int count = 0;
acc_mode = ACC_MODE(flag);
/* O_TRUNC implies we need access checks for write permissions */
if (flag & O_TRUNC)
acc_mode |= MAY_WRITE;
/* Allow the LSM permission hook to distinguish append
access from general write access. */
if (flag & O_APPEND)
acc_mode |= MAY_APPEND;
/* Fill in the open() intent data */
nd->intent.open.flags = flag;
nd->intent.open.create_mode = mode;
/*
* The simplest case - just a plain lookup.
*/
if (!(flag & O_CREAT)) {
error = path_lookup(pathname, lookup_flags(flag)|LOOKUP_OPEN, nd);
error = path_lookup_open(pathname, lookup_flags(flag), nd, flag);
if (error)
return error;
goto ok;
@ -1445,7 +1522,7 @@ int open_namei(const char * pathname, int flag, int mode, struct nameidata *nd)
/*
* Create - we need to know the parent.
*/
error = path_lookup(pathname, LOOKUP_PARENT|LOOKUP_OPEN|LOOKUP_CREATE, nd);
error = path_lookup_create(pathname, LOOKUP_PARENT, nd, flag, mode);
if (error)
return error;
@ -1520,6 +1597,8 @@ ok:
exit_dput:
dput_path(&path, nd);
exit:
if (!IS_ERR(nd->intent.open.file))
release_open_intent(nd);
path_release(nd);
return error;

6
fs/nfs/delegation.c
View File

@ -85,6 +85,10 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
struct nfs_delegation *delegation;
int status = 0;
/* Ensure we first revalidate the attributes and page cache! */
if ((nfsi->cache_validity & (NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_ATTR)))
__nfs_revalidate_inode(NFS_SERVER(inode), inode);
delegation = nfs_alloc_delegation();
if (delegation == NULL)
return -ENOMEM;
@ -138,7 +142,7 @@ static void nfs_msync_inode(struct inode *inode)
/*
* Basic procedure for returning a delegation to the server
*/
int nfs_inode_return_delegation(struct inode *inode)
int __nfs_inode_return_delegation(struct inode *inode)
{
struct nfs4_client *clp = NFS_SERVER(inode)->nfs4_state;
struct nfs_inode *nfsi = NFS_I(inode);

16
fs/nfs/delegation.h
View File

@ -25,7 +25,7 @@ struct nfs_delegation {
int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
int nfs_inode_return_delegation(struct inode *inode);
int __nfs_inode_return_delegation(struct inode *inode);
int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid);
struct inode *nfs_delegation_find_inode(struct nfs4_client *clp, const struct nfs_fh *fhandle);
@ -47,11 +47,25 @@ static inline int nfs_have_delegation(struct inode *inode, int flags)
return 1;
return 0;
}
static inline int nfs_inode_return_delegation(struct inode *inode)
{
int err = 0;
if (NFS_I(inode)->delegation != NULL)
err = __nfs_inode_return_delegation(inode);
return err;
}
#else
static inline int nfs_have_delegation(struct inode *inode, int flags)
{
return 0;
}
static inline int nfs_inode_return_delegation(struct inode *inode)
{
return 0;
}
#endif
#endif

44
fs/nfs/dir.c
View File

@ -801,6 +801,7 @@ static int nfs_dentry_delete(struct dentry *dentry)
*/
static void nfs_dentry_iput(struct dentry *dentry, struct inode *inode)
{
nfs_inode_return_delegation(inode);
if (dentry->d_flags & DCACHE_NFSFS_RENAMED) {
lock_kernel();
inode->i_nlink--;
@ -914,7 +915,6 @@ static int is_atomic_open(struct inode *dir, struct nameidata *nd)
static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct dentry *res = NULL;
struct inode *inode = NULL;
int error;
/* Check that we are indeed trying to open this file */
@ -928,8 +928,10 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
dentry->d_op = NFS_PROTO(dir)->dentry_ops;
/* Let vfs_create() deal with O_EXCL */
if (nd->intent.open.flags & O_EXCL)
goto no_entry;
if (nd->intent.open.flags & O_EXCL) {
d_add(dentry, NULL);
goto out;
}
/* Open the file on the server */
lock_kernel();
@ -943,32 +945,30 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
if (nd->intent.open.flags & O_CREAT) {
nfs_begin_data_update(dir);
inode = nfs4_atomic_open(dir, dentry, nd);
res = nfs4_atomic_open(dir, dentry, nd);
nfs_end_data_update(dir);
} else
inode = nfs4_atomic_open(dir, dentry, nd);
res = nfs4_atomic_open(dir, dentry, nd);
unlock_kernel();
if (IS_ERR(inode)) {
error = PTR_ERR(inode);
if (IS_ERR(res)) {
error = PTR_ERR(res);
switch (error) {
/* Make a negative dentry */
case -ENOENT:
inode = NULL;
break;
res = NULL;
goto out;
/* This turned out not to be a regular file */
case -EISDIR:
case -ENOTDIR:
goto no_open;
case -ELOOP:
if (!(nd->intent.open.flags & O_NOFOLLOW))
goto no_open;
/* case -EISDIR: */
/* case -EINVAL: */
default:
res = ERR_PTR(error);
goto out;
}
}
no_entry:
res = d_add_unique(dentry, inode);
if (res != NULL)
} else if (res != NULL)
dentry = res;
nfs_renew_times(dentry);
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
@ -1012,7 +1012,7 @@ static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd)
*/
lock_kernel();
verifier = nfs_save_change_attribute(dir);
ret = nfs4_open_revalidate(dir, dentry, openflags);
ret = nfs4_open_revalidate(dir, dentry, openflags, nd);
if (!ret)
nfs_set_verifier(dentry, verifier);
unlock_kernel();
@ -1135,7 +1135,7 @@ static int nfs_create(struct inode *dir, struct dentry *dentry, int mode,
lock_kernel();
nfs_begin_data_update(dir);
error = NFS_PROTO(dir)->create(dir, dentry, &attr, open_flags);
error = NFS_PROTO(dir)->create(dir, dentry, &attr, open_flags, nd);
nfs_end_data_update(dir);
if (error != 0)
goto out_err;
@ -1330,6 +1330,7 @@ static int nfs_safe_remove(struct dentry *dentry)
nfs_begin_data_update(dir);
if (inode != NULL) {
nfs_inode_return_delegation(inode);
nfs_begin_data_update(inode);
error = NFS_PROTO(dir)->remove(dir, &dentry->d_name);
/* The VFS may want to delete this inode */
@ -1510,9 +1511,11 @@ static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
*/
if (!new_inode)
goto go_ahead;
if (S_ISDIR(new_inode->i_mode))
goto out;
else if (atomic_read(&new_dentry->d_count) > 2) {
if (S_ISDIR(new_inode->i_mode)) {
error = -EISDIR;
if (!S_ISDIR(old_inode->i_mode))
goto out;
} else if (atomic_read(&new_dentry->d_count) > 2) {
int err;
/* copy the target dentry's name */
dentry = d_alloc(new_dentry->d_parent,
@ -1548,6 +1551,7 @@ go_ahead:
nfs_wb_all(old_inode);
shrink_dcache_parent(old_dentry);
}
nfs_inode_return_delegation(old_inode);
if (new_inode)
d_delete(new_dentry);

30
fs/nfs/file.c
View File

@ -137,7 +137,8 @@ static int nfs_revalidate_file(struct inode *inode, struct file *filp)
struct nfs_inode *nfsi = NFS_I(inode);
int retval = 0;
if ((nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE) || nfs_attribute_timeout(inode))
if ((nfsi->cache_validity & (NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_ATTR))
|| nfs_attribute_timeout(inode))
retval = __nfs_revalidate_inode(NFS_SERVER(inode), inode);
nfs_revalidate_mapping(inode, filp->f_mapping);
return 0;
@ -375,22 +376,31 @@ out_swapfile:
static int do_getlk(struct file *filp, int cmd, struct file_lock *fl)
{
struct file_lock *cfl;
struct inode *inode = filp->f_mapping->host;
int status = 0;
lock_kernel();
/* Use local locking if mounted with "-onolock" */
if (!(NFS_SERVER(inode)->flags & NFS_MOUNT_NONLM))
status = NFS_PROTO(inode)->lock(filp, cmd, fl);
else {
struct file_lock *cfl = posix_test_lock(filp, fl);
fl->fl_type = F_UNLCK;
if (cfl != NULL)
memcpy(fl, cfl, sizeof(*fl));
/* Try local locking first */
cfl = posix_test_lock(filp, fl);
if (cfl != NULL) {
locks_copy_lock(fl, cfl);
goto out;
}
if (nfs_have_delegation(inode, FMODE_READ))
goto out_noconflict;
if (NFS_SERVER(inode)->flags & NFS_MOUNT_NONLM)
goto out_noconflict;
status = NFS_PROTO(inode)->lock(filp, cmd, fl);
out:
unlock_kernel();
return status;
out_noconflict:
fl->fl_type = F_UNLCK;
goto out;
}
static int do_vfs_lock(struct file *file, struct file_lock *fl)

17
fs/nfs/inode.c
View File

@ -853,6 +853,11 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr)
filemap_fdatawait(inode->i_mapping);
nfs_wb_all(inode);
}
/*
* Return any delegations if we're going to change ACLs
*/
if ((attr->ia_valid & (ATTR_MODE|ATTR_UID|ATTR_GID)) != 0)
nfs_inode_return_delegation(inode);
error = NFS_PROTO(inode)->setattr(dentry, &fattr, attr);
if (error == 0)
nfs_refresh_inode(inode, &fattr);
@ -909,12 +914,10 @@ static int nfs_wait_on_inode(struct inode *inode)
sigset_t oldmask;
int error;
atomic_inc(&inode->i_count);
rpc_clnt_sigmask(clnt, &oldmask);
error = wait_on_bit_lock(&nfsi->flags, NFS_INO_REVALIDATING,
nfs_wait_schedule, TASK_INTERRUPTIBLE);
rpc_clnt_sigunmask(clnt, &oldmask);
iput(inode);
return error;
}
@ -1258,10 +1261,6 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
loff_t cur_size, new_isize;
int data_unstable;
/* Do we hold a delegation? */
if (nfs_have_delegation(inode, FMODE_READ))
return 0;
spin_lock(&inode->i_lock);
/* Are we in the process of updating data on the server? */
@ -1382,7 +1381,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
nfsi->read_cache_jiffies = fattr->timestamp;
/* Are we racing with known updates of the metadata on the server? */
data_unstable = ! nfs_verify_change_attribute(inode, verifier);
data_unstable = ! (nfs_verify_change_attribute(inode, verifier) ||
(nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE));
/* Check if our cached file size is stale */
new_isize = nfs_size_to_loff_t(fattr->size);
@ -1676,8 +1676,7 @@ static void nfs4_clear_inode(struct inode *inode)
struct nfs_inode *nfsi = NFS_I(inode);
/* If we are holding a delegation, return it! */
if (nfsi->delegation != NULL)
nfs_inode_return_delegation(inode);
nfs_inode_return_delegation(inode);
/* First call standard NFS clear_inode() code */
nfs_clear_inode(inode);
/* Now clear out any remaining state */

2
fs/nfs/nfs3proc.c
View File

@ -299,7 +299,7 @@ static int nfs3_proc_commit(struct nfs_write_data *cdata)
*/
static int
nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
int flags)
int flags, struct nameidata *nd)
{
struct nfs_fh fhandle;
struct nfs_fattr fattr;

53
fs/nfs/nfs4_fs.h
View File

@ -92,26 +92,51 @@ struct nfs4_client {
unsigned char cl_id_uniquifier;
};
/*
* struct rpc_sequence ensures that RPC calls are sent in the exact
* order that they appear on the list.
*/
struct rpc_sequence {
struct rpc_wait_queue wait; /* RPC call delay queue */
spinlock_t lock; /* Protects the list */
struct list_head list; /* Defines sequence of RPC calls */
};
#define NFS_SEQID_CONFIRMED 1
struct nfs_seqid_counter {
struct rpc_sequence *sequence;
int flags;
u32 counter;
};
struct nfs_seqid {
struct list_head list;
struct nfs_seqid_counter *sequence;
struct rpc_task *task;
};
static inline void nfs_confirm_seqid(struct nfs_seqid_counter *seqid, int status)
{
if (seqid_mutating_err(-status))
seqid->flags |= NFS_SEQID_CONFIRMED;
}
/*
* NFS4 state_owners and lock_owners are simply labels for ordered
* sequences of RPC calls. Their sole purpose is to provide once-only
* semantics by allowing the server to identify replayed requests.
*
* The ->so_sema is held during all state_owner seqid-mutating operations:
* OPEN, OPEN_DOWNGRADE, and CLOSE. Its purpose is to properly serialize
* so_seqid.
*/
struct nfs4_state_owner {
struct list_head so_list; /* per-clientid list of state_owners */
struct nfs4_client *so_client;
u32 so_id; /* 32-bit identifier, unique */
struct semaphore so_sema;
u32 so_seqid; /* protected by so_sema */
atomic_t so_count;
struct rpc_cred *so_cred; /* Associated cred */
struct list_head so_states;
struct list_head so_delegations;
struct nfs_seqid_counter so_seqid;
struct rpc_sequence so_sequence;
};
/*
@ -132,7 +157,7 @@ struct nfs4_lock_state {
fl_owner_t ls_owner; /* POSIX lock owner */
#define NFS_LOCK_INITIALIZED 1
int ls_flags;
u32 ls_seqid;
struct nfs_seqid_counter ls_seqid;
u32 ls_id;
nfs4_stateid ls_stateid;
atomic_t ls_count;
@ -153,7 +178,6 @@ struct nfs4_state {
struct inode *inode; /* Pointer to the inode */
unsigned long flags; /* Do we hold any locks? */
struct semaphore lock_sema; /* Serializes file locking operations */
spinlock_t state_lock; /* Protects the lock_states list */
nfs4_stateid stateid;
@ -191,8 +215,8 @@ extern int nfs4_proc_setclientid_confirm(struct nfs4_client *);
extern int nfs4_proc_async_renew(struct nfs4_client *);
extern int nfs4_proc_renew(struct nfs4_client *);
extern int nfs4_do_close(struct inode *inode, struct nfs4_state *state, mode_t mode);
extern struct inode *nfs4_atomic_open(struct inode *, struct dentry *, struct nameidata *);
extern int nfs4_open_revalidate(struct inode *, struct dentry *, int);
extern struct dentry *nfs4_atomic_open(struct inode *, struct dentry *, struct nameidata *);
extern int nfs4_open_revalidate(struct inode *, struct dentry *, int, struct nameidata *);
extern struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops;
extern struct nfs4_state_recovery_ops nfs4_network_partition_recovery_ops;
@ -224,12 +248,17 @@ extern struct nfs4_state * nfs4_get_open_state(struct inode *, struct nfs4_state
extern void nfs4_put_open_state(struct nfs4_state *);
extern void nfs4_close_state(struct nfs4_state *, mode_t);
extern struct nfs4_state *nfs4_find_state(struct inode *, struct rpc_cred *, mode_t mode);
extern void nfs4_increment_seqid(int status, struct nfs4_state_owner *sp);
extern void nfs4_schedule_state_recovery(struct nfs4_client *);
extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp);
extern int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl);
extern void nfs4_increment_lock_seqid(int status, struct nfs4_lock_state *ls);
extern void nfs4_copy_stateid(nfs4_stateid *, struct nfs4_state *, fl_owner_t);
extern struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter);
extern int nfs_wait_on_sequence(struct nfs_seqid *seqid, struct rpc_task *task);
extern void nfs_increment_open_seqid(int status, struct nfs_seqid *seqid);
extern void nfs_increment_lock_seqid(int status, struct nfs_seqid *seqid);
extern void nfs_free_seqid(struct nfs_seqid *seqid);
extern const nfs4_stateid zero_stateid;
/* nfs4xdr.c */

579
fs/nfs/nfs4proc.c
View File

@ -47,6 +47,7 @@
#include <linux/nfs_page.h>
#include <linux/smp_lock.h>
#include <linux/namei.h>
#include <linux/mount.h>
#include "nfs4_fs.h"
#include "delegation.h"
@ -56,10 +57,11 @@
#define NFS4_POLL_RETRY_MIN (1*HZ)
#define NFS4_POLL_RETRY_MAX (15*HZ)
static int _nfs4_proc_open_confirm(struct rpc_clnt *clnt, const struct nfs_fh *fh, struct nfs4_state_owner *sp, nfs4_stateid *stateid, struct nfs_seqid *seqid);
static int nfs4_do_fsinfo(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *);
static int nfs4_async_handle_error(struct rpc_task *, struct nfs_server *);
static int nfs4_async_handle_error(struct rpc_task *, const struct nfs_server *);
static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry);
static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struct nfs4_exception *exception);
static int nfs4_handle_exception(const struct nfs_server *server, int errorcode, struct nfs4_exception *exception);
extern u32 *nfs4_decode_dirent(u32 *p, struct nfs_entry *entry, int plus);
extern struct rpc_procinfo nfs4_procedures[];
@ -189,6 +191,21 @@ static void update_changeattr(struct inode *inode, struct nfs4_change_info *cinf
nfsi->change_attr = cinfo->after;
}
/* Helper for asynchronous RPC calls */
static int nfs4_call_async(struct rpc_clnt *clnt, rpc_action tk_begin,
rpc_action tk_exit, void *calldata)
{
struct rpc_task *task;
if (!(task = rpc_new_task(clnt, tk_exit, RPC_TASK_ASYNC)))
return -ENOMEM;
task->tk_calldata = calldata;
task->tk_action = tk_begin;
rpc_execute(task);
return 0;
}
static void update_open_stateid(struct nfs4_state *state, nfs4_stateid *stateid, int open_flags)
{
struct inode *inode = state->inode;
@ -209,7 +226,6 @@ static void update_open_stateid(struct nfs4_state *state, nfs4_stateid *stateid,
/*
* OPEN_RECLAIM:
* reclaim state on the server after a reboot.
* Assumes caller is holding the sp->so_sem
*/
static int _nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *state)
{
@ -218,7 +234,6 @@ static int _nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *st
struct nfs_delegation *delegation = NFS_I(inode)->delegation;
struct nfs_openargs o_arg = {
.fh = NFS_FH(inode),
.seqid = sp->so_seqid,
.id = sp->so_id,
.open_flags = state->state,
.clientid = server->nfs4_state->cl_clientid,
@ -245,8 +260,13 @@ static int _nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *st
}
o_arg.u.delegation_type = delegation->type;
}
o_arg.seqid = nfs_alloc_seqid(&sp->so_seqid);
if (o_arg.seqid == NULL)
return -ENOMEM;
status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
nfs4_increment_seqid(status, sp);
/* Confirm the sequence as being established */
nfs_confirm_seqid(&sp->so_seqid, status);
nfs_increment_open_seqid(status, o_arg.seqid);
if (status == 0) {
memcpy(&state->stateid, &o_res.stateid, sizeof(state->stateid));
if (o_res.delegation_type != 0) {
@ -256,6 +276,7 @@ static int _nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *st
nfs_async_inode_return_delegation(inode, &o_res.stateid);
}
}
nfs_free_seqid(o_arg.seqid);
clear_bit(NFS_DELEGATED_STATE, &state->flags);
/* Ensure we update the inode attributes */
NFS_CACHEINV(inode);
@ -302,23 +323,35 @@ static int _nfs4_open_delegation_recall(struct dentry *dentry, struct nfs4_state
};
int status = 0;
down(&sp->so_sema);
if (!test_bit(NFS_DELEGATED_STATE, &state->flags))
goto out;
if (state->state == 0)
goto out;
arg.seqid = sp->so_seqid;
arg.seqid = nfs_alloc_seqid(&sp->so_seqid);
status = -ENOMEM;
if (arg.seqid == NULL)
goto out;
arg.open_flags = state->state;
memcpy(arg.u.delegation.data, state->stateid.data, sizeof(arg.u.delegation.data));
status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
nfs4_increment_seqid(status, sp);
nfs_increment_open_seqid(status, arg.seqid);
if (status != 0)
goto out_free;
if(res.rflags & NFS4_OPEN_RESULT_CONFIRM) {
status = _nfs4_proc_open_confirm(server->client, NFS_FH(inode),
sp, &res.stateid, arg.seqid);
if (status != 0)
goto out_free;
}
nfs_confirm_seqid(&sp->so_seqid, 0);
if (status >= 0) {
memcpy(state->stateid.data, res.stateid.data,
sizeof(state->stateid.data));
clear_bit(NFS_DELEGATED_STATE, &state->flags);
}
out_free:
nfs_free_seqid(arg.seqid);
out:
up(&sp->so_sema);
dput(parent);
return status;
}
@ -345,11 +378,11 @@ int nfs4_open_delegation_recall(struct dentry *dentry, struct nfs4_state *state)
return err;
}
static inline int _nfs4_proc_open_confirm(struct rpc_clnt *clnt, const struct nfs_fh *fh, struct nfs4_state_owner *sp, nfs4_stateid *stateid)
static int _nfs4_proc_open_confirm(struct rpc_clnt *clnt, const struct nfs_fh *fh, struct nfs4_state_owner *sp, nfs4_stateid *stateid, struct nfs_seqid *seqid)
{
struct nfs_open_confirmargs arg = {
.fh = fh,
.seqid = sp->so_seqid,
.seqid = seqid,
.stateid = *stateid,
};
struct nfs_open_confirmres res;
@ -362,7 +395,9 @@ static inline int _nfs4_proc_open_confirm(struct rpc_clnt *clnt, const struct nf
int status;
status = rpc_call_sync(clnt, &msg, RPC_TASK_NOINTR);
nfs4_increment_seqid(status, sp);
/* Confirm the sequence as being established */
nfs_confirm_seqid(&sp->so_seqid, status);
nfs_increment_open_seqid(status, seqid);
if (status >= 0)
memcpy(stateid, &res.stateid, sizeof(*stateid));
return status;
@ -380,21 +415,37 @@ static int _nfs4_proc_open(struct inode *dir, struct nfs4_state_owner *sp, stru
int status;
/* Update sequence id. The caller must serialize! */
o_arg->seqid = sp->so_seqid;
o_arg->id = sp->so_id;
o_arg->clientid = sp->so_client->cl_clientid;
status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
nfs4_increment_seqid(status, sp);
if (status == 0) {
/* OPEN on anything except a regular file is disallowed in NFSv4 */
switch (o_res->f_attr->mode & S_IFMT) {
case S_IFREG:
break;
case S_IFLNK:
status = -ELOOP;
break;
case S_IFDIR:
status = -EISDIR;
break;
default:
status = -ENOTDIR;
}
}
nfs_increment_open_seqid(status, o_arg->seqid);
if (status != 0)
goto out;
update_changeattr(dir, &o_res->cinfo);
if(o_res->rflags & NFS4_OPEN_RESULT_CONFIRM) {
status = _nfs4_proc_open_confirm(server->client, &o_res->fh,
sp, &o_res->stateid);
sp, &o_res->stateid, o_arg->seqid);
if (status != 0)
goto out;
}
nfs_confirm_seqid(&sp->so_seqid, 0);
if (!(o_res->f_attr->valid & NFS_ATTR_FATTR))
status = server->rpc_ops->getattr(server, &o_res->fh, o_res->f_attr);
out:
@ -465,6 +516,10 @@ static int _nfs4_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st
set_bit(NFS_DELEGATED_STATE, &state->flags);
goto out;
}
o_arg.seqid = nfs_alloc_seqid(&sp->so_seqid);
status = -ENOMEM;
if (o_arg.seqid == NULL)
goto out;
status = _nfs4_proc_open(dir, sp, &o_arg, &o_res);
if (status != 0)
goto out_nodeleg;
@ -490,6 +545,7 @@ static int _nfs4_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st
nfs_inode_reclaim_delegation(inode, sp->so_cred, &o_res);
}
out_nodeleg:
nfs_free_seqid(o_arg.seqid);
clear_bit(NFS_DELEGATED_STATE, &state->flags);
out:
dput(parent);
@ -564,7 +620,6 @@ static int _nfs4_open_delegated(struct inode *inode, int flags, struct rpc_cred
dprintk("%s: nfs4_get_state_owner failed!\n", __FUNCTION__);
goto out_err;
}
down(&sp->so_sema);
state = nfs4_get_open_state(inode, sp);
if (state == NULL)
goto out_err;
@ -589,7 +644,6 @@ static int _nfs4_open_delegated(struct inode *inode, int flags, struct rpc_cred
set_bit(NFS_DELEGATED_STATE, &state->flags);
update_open_stateid(state, &delegation->stateid, open_flags);
out_ok:
up(&sp->so_sema);
nfs4_put_state_owner(sp);
up_read(&nfsi->rwsem);
up_read(&clp->cl_sem);
@ -600,11 +654,12 @@ out_err:
if (sp != NULL) {
if (state != NULL)
nfs4_put_open_state(state);
up(&sp->so_sema);
nfs4_put_state_owner(sp);
}
up_read(&nfsi->rwsem);
up_read(&clp->cl_sem);
if (err != -EACCES)
nfs_inode_return_delegation(inode);
return err;
}
@ -665,8 +720,10 @@ static int _nfs4_do_open(struct inode *dir, struct dentry *dentry, int flags, st
} else
o_arg.u.attrs = sattr;
/* Serialization for the sequence id */
down(&sp->so_sema);
o_arg.seqid = nfs_alloc_seqid(&sp->so_seqid);
if (o_arg.seqid == NULL)
return -ENOMEM;
status = _nfs4_proc_open(dir, sp, &o_arg, &o_res);
if (status != 0)
goto out_err;
@ -681,7 +738,7 @@ static int _nfs4_do_open(struct inode *dir, struct dentry *dentry, int flags, st
update_open_stateid(state, &o_res.stateid, flags);
if (o_res.delegation_type != 0)
nfs_inode_set_delegation(inode, cred, &o_res);
up(&sp->so_sema);
nfs_free_seqid(o_arg.seqid);
nfs4_put_state_owner(sp);
up_read(&clp->cl_sem);
*res = state;
@ -690,7 +747,7 @@ out_err:
if (sp != NULL) {
if (state != NULL)
nfs4_put_open_state(state);
up(&sp->so_sema);
nfs_free_seqid(o_arg.seqid);
nfs4_put_state_owner(sp);
}
/* Note: clp->cl_sem must be released before nfs4_put_open_state()! */
@ -718,7 +775,7 @@ static struct nfs4_state *nfs4_do_open(struct inode *dir, struct dentry *dentry,
* It is actually a sign of a bug on the client or on the server.
*
* If we receive a BAD_SEQID error in the particular case of
* doing an OPEN, we assume that nfs4_increment_seqid() will
* doing an OPEN, we assume that nfs_increment_open_seqid() will
* have unhashed the old state_owner for us, and that we can
* therefore safely retry using a new one. We should still warn
* the user though...
@ -728,6 +785,16 @@ static struct nfs4_state *nfs4_do_open(struct inode *dir, struct dentry *dentry,
exception.retry = 1;
continue;
}
/*
* BAD_STATEID on OPEN means that the server cancelled our
* state before it received the OPEN_CONFIRM.
* Recover by retrying the request as per the discussion
* on Page 181 of RFC3530.
*/
if (status == -NFS4ERR_BAD_STATEID) {
exception.retry = 1;
continue;
}
res = ERR_PTR(nfs4_handle_exception(NFS_SERVER(dir),
status, &exception));
} while (exception.retry);
@ -789,17 +856,27 @@ struct nfs4_closedata {
struct nfs_closeres res;
};
static void nfs4_free_closedata(struct nfs4_closedata *calldata)
{
struct nfs4_state *state = calldata->state;
struct nfs4_state_owner *sp = state->owner;
nfs4_put_open_state(calldata->state);
nfs_free_seqid(calldata->arg.seqid);
nfs4_put_state_owner(sp);
kfree(calldata);
}
static void nfs4_close_done(struct rpc_task *task)
{
struct nfs4_closedata *calldata = (struct nfs4_closedata *)task->tk_calldata;
struct nfs4_state *state = calldata->state;
struct nfs4_state_owner *sp = state->owner;
struct nfs_server *server = NFS_SERVER(calldata->inode);
/* hmm. we are done with the inode, and in the process of freeing
* the state_owner. we keep this around to process errors
*/
nfs4_increment_seqid(task->tk_status, sp);
nfs_increment_open_seqid(task->tk_status, calldata->arg.seqid);
switch (task->tk_status) {
case 0:
memcpy(&state->stateid, &calldata->res.stateid,
@ -817,24 +894,46 @@ static void nfs4_close_done(struct rpc_task *task)
}
}
state->state = calldata->arg.open_flags;
nfs4_put_open_state(state);
up(&sp->so_sema);
nfs4_put_state_owner(sp);
up_read(&server->nfs4_state->cl_sem);
kfree(calldata);
nfs4_free_closedata(calldata);
}
static inline int nfs4_close_call(struct rpc_clnt *clnt, struct nfs4_closedata *calldata)
static void nfs4_close_begin(struct rpc_task *task)
{
struct nfs4_closedata *calldata = (struct nfs4_closedata *)task->tk_calldata;
struct nfs4_state *state = calldata->state;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CLOSE],
.rpc_argp = &calldata->arg,
.rpc_resp = &calldata->res,
.rpc_cred = calldata->state->owner->so_cred,
.rpc_cred = state->owner->so_cred,
};
if (calldata->arg.open_flags != 0)
int mode = 0;
int status;
status = nfs_wait_on_sequence(calldata->arg.seqid, task);
if (status != 0)
return;
/* Don't reorder reads */
smp_rmb();
/* Recalculate the new open mode in case someone reopened the file
* while we were waiting in line to be scheduled.
*/
if (state->nreaders != 0)
mode |= FMODE_READ;
if (state->nwriters != 0)
mode |= FMODE_WRITE;
if (test_bit(NFS_DELEGATED_STATE, &state->flags))
state->state = mode;
if (mode == state->state) {
nfs4_free_closedata(calldata);
task->tk_exit = NULL;
rpc_exit(task, 0);
return;
}
if (mode != 0)
msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_DOWNGRADE];
return rpc_call_async(clnt, &msg, 0, nfs4_close_done, calldata);
calldata->arg.open_flags = mode;
rpc_call_setup(task, &msg, 0);
}
/*
@ -851,39 +950,52 @@ static inline int nfs4_close_call(struct rpc_clnt *clnt, struct nfs4_closedata *
int nfs4_do_close(struct inode *inode, struct nfs4_state *state, mode_t mode)
{
struct nfs4_closedata *calldata;
int status;
int status = -ENOMEM;
/* Tell caller we're done */
if (test_bit(NFS_DELEGATED_STATE, &state->flags)) {
state->state = mode;
return 0;
}
calldata = (struct nfs4_closedata *)kmalloc(sizeof(*calldata), GFP_KERNEL);
calldata = kmalloc(sizeof(*calldata), GFP_KERNEL);
if (calldata == NULL)
return -ENOMEM;
goto out;
calldata->inode = inode;
calldata->state = state;
calldata->arg.fh = NFS_FH(inode);
calldata->arg.stateid = &state->stateid;
/* Serialization for the sequence id */
calldata->arg.seqid = state->owner->so_seqid;
calldata->arg.open_flags = mode;
memcpy(&calldata->arg.stateid, &state->stateid,
sizeof(calldata->arg.stateid));
status = nfs4_close_call(NFS_SERVER(inode)->client, calldata);
/*
* Return -EINPROGRESS on success in order to indicate to the
* caller that an asynchronous RPC call has been launched, and
* that it will release the semaphores on completion.
*/
return (status == 0) ? -EINPROGRESS : status;
calldata->arg.seqid = nfs_alloc_seqid(&state->owner->so_seqid);
if (calldata->arg.seqid == NULL)
goto out_free_calldata;
status = nfs4_call_async(NFS_SERVER(inode)->client, nfs4_close_begin,
nfs4_close_done, calldata);
if (status == 0)
goto out;
nfs_free_seqid(calldata->arg.seqid);
out_free_calldata:
kfree(calldata);
out:
return status;
}
struct inode *
static void nfs4_intent_set_file(struct nameidata *nd, struct dentry *dentry, struct nfs4_state *state)
{
struct file *filp;
filp = lookup_instantiate_filp(nd, dentry, NULL);
if (!IS_ERR(filp)) {
struct nfs_open_context *ctx;
ctx = (struct nfs_open_context *)filp->private_data;
ctx->state = state;
} else
nfs4_close_state(state, nd->intent.open.flags);
}
struct dentry *
nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct iattr attr;
struct rpc_cred *cred;
struct nfs4_state *state;
struct dentry *res;
if (nd->flags & LOOKUP_CREATE) {
attr.ia_mode = nd->intent.open.create_mode;
@ -897,16 +1009,23 @@ nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
cred = rpcauth_lookupcred(NFS_SERVER(dir)->client->cl_auth, 0);
if (IS_ERR(cred))
return (struct inode *)cred;
return (struct dentry *)cred;
state = nfs4_do_open(dir, dentry, nd->intent.open.flags, &attr, cred);
put_rpccred(cred);
if (IS_ERR(state))
return (struct inode *)state;
return state->inode;
if (IS_ERR(state)) {
if (PTR_ERR(state) == -ENOENT)
d_add(dentry, NULL);
return (struct dentry *)state;
}
res = d_add_unique(dentry, state->inode);
if (res != NULL)
dentry = res;
nfs4_intent_set_file(nd, dentry, state);
return res;
}
int
nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags)
nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags, struct nameidata *nd)
{
struct rpc_cred *cred;
struct nfs4_state *state;
@ -919,18 +1038,30 @@ nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags)
if (IS_ERR(state))
state = nfs4_do_open(dir, dentry, openflags, NULL, cred);
put_rpccred(cred);
if (state == ERR_PTR(-ENOENT) && dentry->d_inode == 0)
return 1;
if (IS_ERR(state))
return 0;
if (IS_ERR(state)) {
switch (PTR_ERR(state)) {
case -EPERM:
case -EACCES:
case -EDQUOT:
case -ENOSPC:
case -EROFS:
lookup_instantiate_filp(nd, (struct dentry *)state, NULL);
return 1;
case -ENOENT:
if (dentry->d_inode == NULL)
return 1;
}
goto out_drop;
}
inode = state->inode;
iput(inode);
if (inode == dentry->d_inode) {
iput(inode);
nfs4_intent_set_file(nd, dentry, state);
return 1;
}
d_drop(dentry);
nfs4_close_state(state, openflags);
iput(inode);
out_drop:
d_drop(dentry);
return 0;
}
@ -1431,7 +1562,7 @@ static int nfs4_proc_commit(struct nfs_write_data *cdata)
static int
nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
int flags)
int flags, struct nameidata *nd)
{
struct nfs4_state *state;
struct rpc_cred *cred;
@ -1453,13 +1584,13 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
struct nfs_fattr fattr;
status = nfs4_do_setattr(NFS_SERVER(dir), &fattr,
NFS_FH(state->inode), sattr, state);
if (status == 0) {
if (status == 0)
nfs_setattr_update_inode(state->inode, sattr);
goto out;
}
} else if (flags != 0)
goto out;
nfs4_close_state(state, flags);
}
if (status == 0 && nd != NULL && (nd->flags & LOOKUP_OPEN))
nfs4_intent_set_file(nd, dentry, state);
else
nfs4_close_state(state, flags);
out:
return status;
}
@ -2106,65 +2237,6 @@ nfs4_proc_renew(struct nfs4_client *clp)
return 0;
}
/*
* We will need to arrange for the VFS layer to provide an atomic open.
* Until then, this open method is prone to inefficiency and race conditions
* due to the lookup, potential create, and open VFS calls from sys_open()
* placed on the wire.
*/
static int
nfs4_proc_file_open(struct inode *inode, struct file *filp)
{
struct dentry *dentry = filp->f_dentry;
struct nfs_open_context *ctx;
struct nfs4_state *state = NULL;
struct rpc_cred *cred;
int status = -ENOMEM;
dprintk("nfs4_proc_file_open: starting on (%.*s/%.*s)\n",
(int)dentry->d_parent->d_name.len,
dentry->d_parent->d_name.name,
(int)dentry->d_name.len, dentry->d_name.name);
/* Find our open stateid */
cred = rpcauth_lookupcred(NFS_SERVER(inode)->client->cl_auth, 0);
if (IS_ERR(cred))
return PTR_ERR(cred);
ctx = alloc_nfs_open_context(dentry, cred);
put_rpccred(cred);
if (unlikely(ctx == NULL))
return -ENOMEM;
status = -EIO; /* ERACE actually */
state = nfs4_find_state(inode, cred, filp->f_mode);
if (unlikely(state == NULL))
goto no_state;
ctx->state = state;
nfs4_close_state(state, filp->f_mode);
ctx->mode = filp->f_mode;
nfs_file_set_open_context(filp, ctx);
put_nfs_open_context(ctx);
if (filp->f_mode & FMODE_WRITE)
nfs_begin_data_update(inode);
return 0;
no_state:
printk(KERN_WARNING "NFS: v4 raced in function %s\n", __FUNCTION__);
put_nfs_open_context(ctx);
return status;
}
/*
* Release our state
*/
static int
nfs4_proc_file_release(struct inode *inode, struct file *filp)
{
if (filp->f_mode & FMODE_WRITE)
nfs_end_data_update(inode);
nfs_file_clear_open_context(filp);
return 0;
}
static inline int nfs4_server_supports_acls(struct nfs_server *server)
{
return (server->caps & NFS_CAP_ACLS)
@ -2345,6 +2417,7 @@ static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen
if (!nfs4_server_supports_acls(server))
return -EOPNOTSUPP;
nfs_inode_return_delegation(inode);
buf_to_pages(buf, buflen, arg.acl_pages, &arg.acl_pgbase);
ret = rpc_call_sync(NFS_SERVER(inode)->client, &msg, 0);
if (ret == 0)
@ -2353,7 +2426,7 @@ static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen
}
static int
nfs4_async_handle_error(struct rpc_task *task, struct nfs_server *server)
nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server)
{
struct nfs4_client *clp = server->nfs4_state;
@ -2431,7 +2504,7 @@ static int nfs4_delay(struct rpc_clnt *clnt, long *timeout)
/* This is the error handling routine for processes that are allowed
* to sleep.
*/
int nfs4_handle_exception(struct nfs_server *server, int errorcode, struct nfs4_exception *exception)
int nfs4_handle_exception(const struct nfs_server *server, int errorcode, struct nfs4_exception *exception)
{
struct nfs4_client *clp = server->nfs4_state;
int ret = errorcode;
@ -2632,7 +2705,6 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock
down_read(&clp->cl_sem);
nlo.clientid = clp->cl_clientid;
down(&state->lock_sema);
status = nfs4_set_lock_state(state, request);
if (status != 0)
goto out;
@ -2659,7 +2731,6 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock
status = 0;
}
out:
up(&state->lock_sema);
up_read(&clp->cl_sem);
return status;
}
@ -2696,67 +2767,125 @@ static int do_vfs_lock(struct file *file, struct file_lock *fl)
return res;
}
static int _nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock *request)
struct nfs4_unlockdata {
struct nfs_lockargs arg;
struct nfs_locku_opargs luargs;
struct nfs_lockres res;
struct nfs4_lock_state *lsp;
struct nfs_open_context *ctx;
atomic_t refcount;
struct completion completion;
};
static void nfs4_locku_release_calldata(struct nfs4_unlockdata *calldata)
{
struct inode *inode = state->inode;
struct nfs_server *server = NFS_SERVER(inode);
struct nfs4_client *clp = server->nfs4_state;
struct nfs_lockargs arg = {
.fh = NFS_FH(inode),
.type = nfs4_lck_type(cmd, request),
.offset = request->fl_start,
.length = nfs4_lck_length(request),
};
struct nfs_lockres res = {
.server = server,
};
if (atomic_dec_and_test(&calldata->refcount)) {
nfs_free_seqid(calldata->luargs.seqid);
nfs4_put_lock_state(calldata->lsp);
put_nfs_open_context(calldata->ctx);
kfree(calldata);
}
}
static void nfs4_locku_complete(struct nfs4_unlockdata *calldata)
{
complete(&calldata->completion);
nfs4_locku_release_calldata(calldata);
}
static void nfs4_locku_done(struct rpc_task *task)
{
struct nfs4_unlockdata *calldata = (struct nfs4_unlockdata *)task->tk_calldata;
nfs_increment_lock_seqid(task->tk_status, calldata->luargs.seqid);
switch (task->tk_status) {
case 0:
memcpy(calldata->lsp->ls_stateid.data,
calldata->res.u.stateid.data,
sizeof(calldata->lsp->ls_stateid.data));
break;
case -NFS4ERR_STALE_STATEID:
case -NFS4ERR_EXPIRED:
nfs4_schedule_state_recovery(calldata->res.server->nfs4_state);
break;
default:
if (nfs4_async_handle_error(task, calldata->res.server) == -EAGAIN) {
rpc_restart_call(task);
return;
}
}
nfs4_locku_complete(calldata);
}
static void nfs4_locku_begin(struct rpc_task *task)
{
struct nfs4_unlockdata *calldata = (struct nfs4_unlockdata *)task->tk_calldata;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LOCKU],
.rpc_argp = &arg,
.rpc_resp = &res,
.rpc_cred = state->owner->so_cred,
.rpc_argp = &calldata->arg,
.rpc_resp = &calldata->res,
.rpc_cred = calldata->lsp->ls_state->owner->so_cred,
};
struct nfs4_lock_state *lsp;
struct nfs_locku_opargs luargs;
int status;
down_read(&clp->cl_sem);
down(&state->lock_sema);
status = nfs4_set_lock_state(state, request);
if (status != 0)
goto out;
lsp = request->fl_u.nfs4_fl.owner;
/* We might have lost the locks! */
if ((lsp->ls_flags & NFS_LOCK_INITIALIZED) == 0)
goto out;
luargs.seqid = lsp->ls_seqid;
memcpy(&luargs.stateid, &lsp->ls_stateid, sizeof(luargs.stateid));
arg.u.locku = &luargs;
status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
nfs4_increment_lock_seqid(status, lsp);
if (status == 0)
memcpy(&lsp->ls_stateid, &res.u.stateid,
sizeof(lsp->ls_stateid));
out:
up(&state->lock_sema);
if (status == 0)
do_vfs_lock(request->fl_file, request);
up_read(&clp->cl_sem);
return status;
status = nfs_wait_on_sequence(calldata->luargs.seqid, task);
if (status != 0)
return;
if ((calldata->lsp->ls_flags & NFS_LOCK_INITIALIZED) == 0) {
nfs4_locku_complete(calldata);
task->tk_exit = NULL;
rpc_exit(task, 0);
return;
}
rpc_call_setup(task, &msg, 0);
}
static int nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock *request)
{
struct nfs4_exception exception = { };
int err;
struct nfs4_unlockdata *calldata;
struct inode *inode = state->inode;
struct nfs_server *server = NFS_SERVER(inode);
struct nfs4_lock_state *lsp;
int status;
do {
err = nfs4_handle_exception(NFS_SERVER(state->inode),
_nfs4_proc_unlck(state, cmd, request),
&exception);
} while (exception.retry);
return err;
status = nfs4_set_lock_state(state, request);
if (status != 0)
return status;
lsp = request->fl_u.nfs4_fl.owner;
/* We might have lost the locks! */
if ((lsp->ls_flags & NFS_LOCK_INITIALIZED) == 0)
return 0;
calldata = kmalloc(sizeof(*calldata), GFP_KERNEL);
if (calldata == NULL)
return -ENOMEM;
calldata->luargs.seqid = nfs_alloc_seqid(&lsp->ls_seqid);
if (calldata->luargs.seqid == NULL) {
kfree(calldata);
return -ENOMEM;
}
calldata->luargs.stateid = &lsp->ls_stateid;
calldata->arg.fh = NFS_FH(inode);
calldata->arg.type = nfs4_lck_type(cmd, request);
calldata->arg.offset = request->fl_start;
calldata->arg.length = nfs4_lck_length(request);
calldata->arg.u.locku = &calldata->luargs;
calldata->res.server = server;
calldata->lsp = lsp;
atomic_inc(&lsp->ls_count);
/* Ensure we don't close file until we're done freeing locks! */
calldata->ctx = get_nfs_open_context((struct nfs_open_context*)request->fl_file->private_data);
atomic_set(&calldata->refcount, 2);
init_completion(&calldata->completion);
status = nfs4_call_async(NFS_SERVER(inode)->client, nfs4_locku_begin,
nfs4_locku_done, calldata);
if (status == 0)
wait_for_completion_interruptible(&calldata->completion);
do_vfs_lock(request->fl_file, request);
nfs4_locku_release_calldata(calldata);
return status;
}
static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *request, int reclaim)
@ -2764,11 +2893,23 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *r
struct inode *inode = state->inode;
struct nfs_server *server = NFS_SERVER(inode);
struct nfs4_lock_state *lsp = request->fl_u.nfs4_fl.owner;
struct nfs_lock_opargs largs = {
.lock_stateid = &lsp->ls_stateid,
.open_stateid = &state->stateid,
.lock_owner = {
.clientid = server->nfs4_state->cl_clientid,
.id = lsp->ls_id,
},
.reclaim = reclaim,
};
struct nfs_lockargs arg = {
.fh = NFS_FH(inode),
.type = nfs4_lck_type(cmd, request),
.offset = request->fl_start,
.length = nfs4_lck_length(request),
.u = {
.lock = &largs,
},
};
struct nfs_lockres res = {
.server = server,
@ -2779,53 +2920,39 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *r
.rpc_resp = &res,
.rpc_cred = state->owner->so_cred,
};
struct nfs_lock_opargs largs = {
.reclaim = reclaim,
.new_lock_owner = 0,
};
int status;
int status = -ENOMEM;
if (!(lsp->ls_flags & NFS_LOCK_INITIALIZED)) {
largs.lock_seqid = nfs_alloc_seqid(&lsp->ls_seqid);
if (largs.lock_seqid == NULL)
return -ENOMEM;
if (!(lsp->ls_seqid.flags & NFS_SEQID_CONFIRMED)) {
struct nfs4_state_owner *owner = state->owner;
struct nfs_open_to_lock otl = {
.lock_owner = {
.clientid = server->nfs4_state->cl_clientid,
},
};
otl.lock_seqid = lsp->ls_seqid;
otl.lock_owner.id = lsp->ls_id;
memcpy(&otl.open_stateid, &state->stateid, sizeof(otl.open_stateid));
largs.u.open_lock = &otl;
largs.open_seqid = nfs_alloc_seqid(&owner->so_seqid);
if (largs.open_seqid == NULL)
goto out;
largs.new_lock_owner = 1;
arg.u.lock = &largs;
down(&owner->so_sema);
otl.open_seqid = owner->so_seqid;
status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
/* increment open_owner seqid on success, and
* seqid mutating errors */
nfs4_increment_seqid(status, owner);
up(&owner->so_sema);
if (status == 0) {
lsp->ls_flags |= NFS_LOCK_INITIALIZED;
lsp->ls_seqid++;
/* increment open seqid on success, and seqid mutating errors */
if (largs.new_lock_owner != 0) {
nfs_increment_open_seqid(status, largs.open_seqid);
if (status == 0)
nfs_confirm_seqid(&lsp->ls_seqid, 0);
}
} else {
struct nfs_exist_lock el = {
.seqid = lsp->ls_seqid,
};
memcpy(&el.stateid, &lsp->ls_stateid, sizeof(el.stateid));
largs.u.exist_lock = &el;
arg.u.lock = &largs;
nfs_free_seqid(largs.open_seqid);
} else
status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
/* increment seqid on success, and * seqid mutating errors*/
nfs4_increment_lock_seqid(status, lsp);
}
/* increment lock seqid on success, and seqid mutating errors*/
nfs_increment_lock_seqid(status, largs.lock_seqid);
/* save the returned stateid. */
if (status == 0)
memcpy(&lsp->ls_stateid, &res.u.stateid, sizeof(nfs4_stateid));
else if (status == -NFS4ERR_DENIED)
if (status == 0) {
memcpy(lsp->ls_stateid.data, res.u.stateid.data,
sizeof(lsp->ls_stateid.data));
lsp->ls_flags |= NFS_LOCK_INITIALIZED;
} else if (status == -NFS4ERR_DENIED)
status = -EAGAIN;
out:
nfs_free_seqid(largs.lock_seqid);
return status;
}
@ -2865,11 +2992,9 @@ static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock
int status;
down_read(&clp->cl_sem);
down(&state->lock_sema);
status = nfs4_set_lock_state(state, request);
if (status == 0)
status = _nfs4_do_setlk(state, cmd, request, 0);
up(&state->lock_sema);
if (status == 0) {
/* Note: we always want to sleep here! */
request->fl_flags |= FL_SLEEP;
@ -3024,8 +3149,8 @@ struct nfs_rpc_ops nfs_v4_clientops = {
.read_setup = nfs4_proc_read_setup,
.write_setup = nfs4_proc_write_setup,
.commit_setup = nfs4_proc_commit_setup,
.file_open = nfs4_proc_file_open,
.file_release = nfs4_proc_file_release,
.file_open = nfs_open,
.file_release = nfs_release,
.lock = nfs4_proc_lock,
.clear_acl_cache = nfs4_zap_acl_attr,
};

163
fs/nfs/nfs4state.c
View File

@ -264,13 +264,15 @@ nfs4_alloc_state_owner(void)
{
struct nfs4_state_owner *sp;
sp = kmalloc(sizeof(*sp),GFP_KERNEL);
sp = kzalloc(sizeof(*sp),GFP_KERNEL);
if (!sp)
return NULL;
init_MUTEX(&sp->so_sema);
sp->so_seqid = 0; /* arbitrary */
INIT_LIST_HEAD(&sp->so_states);
INIT_LIST_HEAD(&sp->so_delegations);
rpc_init_wait_queue(&sp->so_sequence.wait, "Seqid_waitqueue");
sp->so_seqid.sequence = &sp->so_sequence;
spin_lock_init(&sp->so_sequence.lock);
INIT_LIST_HEAD(&sp->so_sequence.list);
atomic_set(&sp->so_count, 1);
return sp;
}
@ -359,7 +361,6 @@ nfs4_alloc_open_state(void)
memset(state->stateid.data, 0, sizeof(state->stateid.data));
atomic_set(&state->count, 1);
INIT_LIST_HEAD(&state->lock_states);
init_MUTEX(&state->lock_sema);
spin_lock_init(&state->state_lock);
return state;
}
@ -441,7 +442,6 @@ nfs4_get_open_state(struct inode *inode, struct nfs4_state_owner *owner)
state = __nfs4_find_state_byowner(inode, owner);
if (state == NULL && new != NULL) {
state = new;
/* Caller *must* be holding owner->so_sem */
/* Note: The reclaim code dictates that we add stateless
* and read-only stateids to the end of the list */
list_add_tail(&state->open_states, &owner->so_states);
@ -461,7 +461,7 @@ out:
/*
* Beware! Caller must be holding exactly one
* reference to clp->cl_sem and owner->so_sema!
* reference to clp->cl_sem!
*/
void nfs4_put_open_state(struct nfs4_state *state)
{
@ -481,19 +481,15 @@ void nfs4_put_open_state(struct nfs4_state *state)
}
/*
* Beware! Caller must be holding no references to clp->cl_sem!
* of owner->so_sema!
* Close the current file.
*/
void nfs4_close_state(struct nfs4_state *state, mode_t mode)
{
struct inode *inode = state->inode;
struct nfs4_state_owner *owner = state->owner;
struct nfs4_client *clp = owner->so_client;
int newstate;
atomic_inc(&owner->so_count);
down_read(&clp->cl_sem);
down(&owner->so_sema);
/* Protect against nfs4_find_state() */
spin_lock(&inode->i_lock);
if (mode & FMODE_READ)
@ -515,14 +511,16 @@ void nfs4_close_state(struct nfs4_state *state, mode_t mode)
newstate |= FMODE_WRITE;
if (state->state == newstate)
goto out;
if (nfs4_do_close(inode, state, newstate) == -EINPROGRESS)
if (test_bit(NFS_DELEGATED_STATE, &state->flags)) {
state->state = newstate;
goto out;
}
if (nfs4_do_close(inode, state, newstate) == 0)
return;
}
out:
nfs4_put_open_state(state);
up(&owner->so_sema);
nfs4_put_state_owner(owner);
up_read(&clp->cl_sem);
}
/*
@ -546,19 +544,16 @@ __nfs4_find_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
* Return a compatible lock_state. If no initialized lock_state structure
* exists, return an uninitialized one.
*
* The caller must be holding state->lock_sema
*/
static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
{
struct nfs4_lock_state *lsp;
struct nfs4_client *clp = state->owner->so_client;
lsp = kmalloc(sizeof(*lsp), GFP_KERNEL);
lsp = kzalloc(sizeof(*lsp), GFP_KERNEL);
if (lsp == NULL)
return NULL;
lsp->ls_flags = 0;
lsp->ls_seqid = 0; /* arbitrary */
memset(lsp->ls_stateid.data, 0, sizeof(lsp->ls_stateid.data));
lsp->ls_seqid.sequence = &state->owner->so_sequence;
atomic_set(&lsp->ls_count, 1);
lsp->ls_owner = fl_owner;
spin_lock(&clp->cl_lock);
@ -572,7 +567,7 @@ static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, f
* Return a compatible lock_state. If no initialized lock_state structure
* exists, return an uninitialized one.
*
* The caller must be holding state->lock_sema and clp->cl_sem
* The caller must be holding clp->cl_sem
*/
static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_owner_t owner)
{
@ -605,7 +600,7 @@ static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_
* Release reference to lock_state, and free it if we see that
* it is no longer in use
*/
static void nfs4_put_lock_state(struct nfs4_lock_state *lsp)
void nfs4_put_lock_state(struct nfs4_lock_state *lsp)
{
struct nfs4_state *state;
@ -673,29 +668,98 @@ void nfs4_copy_stateid(nfs4_stateid *dst, struct nfs4_state *state, fl_owner_t f
nfs4_put_lock_state(lsp);
}
/*
* Called with state->lock_sema and clp->cl_sem held.
*/
void nfs4_increment_lock_seqid(int status, struct nfs4_lock_state *lsp)
struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter)
{
if (status == NFS_OK || seqid_mutating_err(-status))
lsp->ls_seqid++;
struct rpc_sequence *sequence = counter->sequence;
struct nfs_seqid *new;
new = kmalloc(sizeof(*new), GFP_KERNEL);
if (new != NULL) {
new->sequence = counter;
new->task = NULL;
spin_lock(&sequence->lock);
list_add_tail(&new->list, &sequence->list);
spin_unlock(&sequence->lock);
}
return new;
}
void nfs_free_seqid(struct nfs_seqid *seqid)
{
struct rpc_sequence *sequence = seqid->sequence->sequence;
struct rpc_task *next = NULL;
spin_lock(&sequence->lock);
list_del(&seqid->list);
if (!list_empty(&sequence->list)) {
next = list_entry(sequence->list.next, struct nfs_seqid, list)->task;
if (next)
rpc_wake_up_task(next);
}
spin_unlock(&sequence->lock);
kfree(seqid);
}
/*
* Called with sp->so_sema and clp->cl_sem held.
*
* Increment the seqid if the OPEN/OPEN_DOWNGRADE/CLOSE succeeded, or
* failed with a seqid incrementing error -
* see comments nfs_fs.h:seqid_mutating_error()
*/
void nfs4_increment_seqid(int status, struct nfs4_state_owner *sp)
* Increment the seqid if the OPEN/OPEN_DOWNGRADE/CLOSE succeeded, or
* failed with a seqid incrementing error -
* see comments nfs_fs.h:seqid_mutating_error()
*/
static inline void nfs_increment_seqid(int status, struct nfs_seqid *seqid)
{
if (status == NFS_OK || seqid_mutating_err(-status))
sp->so_seqid++;
/* If the server returns BAD_SEQID, unhash state_owner here */
if (status == -NFS4ERR_BAD_SEQID)
switch (status) {
case 0:
break;
case -NFS4ERR_BAD_SEQID:
case -NFS4ERR_STALE_CLIENTID:
case -NFS4ERR_STALE_STATEID:
case -NFS4ERR_BAD_STATEID:
case -NFS4ERR_BADXDR:
case -NFS4ERR_RESOURCE:
case -NFS4ERR_NOFILEHANDLE:
/* Non-seqid mutating errors */
return;
};
/*
* Note: no locking needed as we are guaranteed to be first
* on the sequence list
*/
seqid->sequence->counter++;
}
void nfs_increment_open_seqid(int status, struct nfs_seqid *seqid)
{
if (status == -NFS4ERR_BAD_SEQID) {
struct nfs4_state_owner *sp = container_of(seqid->sequence,
struct nfs4_state_owner, so_seqid);
nfs4_drop_state_owner(sp);
}
return nfs_increment_seqid(status, seqid);
}
/*
* Increment the seqid if the LOCK/LOCKU succeeded, or
* failed with a seqid incrementing error -
* see comments nfs_fs.h:seqid_mutating_error()
*/
void nfs_increment_lock_seqid(int status, struct nfs_seqid *seqid)
{
return nfs_increment_seqid(status, seqid);
}
int nfs_wait_on_sequence(struct nfs_seqid *seqid, struct rpc_task *task)
{
struct rpc_sequence *sequence = seqid->sequence->sequence;
int status = 0;
spin_lock(&sequence->lock);
if (sequence->list.next != &seqid->list) {
seqid->task = task;
rpc_sleep_on(&sequence->wait, task, NULL, NULL);
status = -EAGAIN;
}
spin_unlock(&sequence->lock);
return status;
}
static int reclaimer(void *);
@ -791,8 +855,6 @@ static int nfs4_reclaim_open_state(struct nfs4_state_recovery_ops *ops, struct n
if (state->state == 0)
continue;
status = ops->recover_open(sp, state);
list_for_each_entry(lock, &state->lock_states, ls_locks)
lock->ls_flags &= ~NFS_LOCK_INITIALIZED;
if (status >= 0) {
status = nfs4_reclaim_locks(ops, state);
if (status < 0)
@ -831,6 +893,26 @@ out_err:
return status;
}
static void nfs4_state_mark_reclaim(struct nfs4_client *clp)
{
struct nfs4_state_owner *sp;
struct nfs4_state *state;
struct nfs4_lock_state *lock;
/* Reset all sequence ids to zero */
list_for_each_entry(sp, &clp->cl_state_owners, so_list) {
sp->so_seqid.counter = 0;
sp->so_seqid.flags = 0;
list_for_each_entry(state, &sp->so_states, open_states) {
list_for_each_entry(lock, &state->lock_states, ls_locks) {
lock->ls_seqid.counter = 0;
lock->ls_seqid.flags = 0;
lock->ls_flags &= ~NFS_LOCK_INITIALIZED;
}
}
}
}
static int reclaimer(void *ptr)
{
struct reclaimer_args *args = (struct reclaimer_args *)ptr;
@ -864,6 +946,7 @@ restart_loop:
default:
ops = &nfs4_network_partition_recovery_ops;
};
nfs4_state_mark_reclaim(clp);
status = __nfs4_init_client(clp);
if (status)
goto out_error;

62
fs/nfs/nfs4xdr.c
View File

@ -602,10 +602,10 @@ static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg)
{
uint32_t *p;
RESERVE_SPACE(8+sizeof(arg->stateid.data));
RESERVE_SPACE(8+sizeof(arg->stateid->data));
WRITE32(OP_CLOSE);
WRITE32(arg->seqid);
WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
WRITE32(arg->seqid->sequence->counter);
WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
return 0;
}
@ -729,22 +729,18 @@ static int encode_lock(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
WRITE64(arg->length);
WRITE32(opargs->new_lock_owner);
if (opargs->new_lock_owner){
struct nfs_open_to_lock *ol = opargs->u.open_lock;
RESERVE_SPACE(40);
WRITE32(ol->open_seqid);
WRITEMEM(&ol->open_stateid, sizeof(ol->open_stateid));
WRITE32(ol->lock_seqid);
WRITE64(ol->lock_owner.clientid);
WRITE32(opargs->open_seqid->sequence->counter);
WRITEMEM(opargs->open_stateid->data, sizeof(opargs->open_stateid->data));
WRITE32(opargs->lock_seqid->sequence->counter);
WRITE64(opargs->lock_owner.clientid);
WRITE32(4);
WRITE32(ol->lock_owner.id);
WRITE32(opargs->lock_owner.id);
}
else {
struct nfs_exist_lock *el = opargs->u.exist_lock;
RESERVE_SPACE(20);
WRITEMEM(&el->stateid, sizeof(el->stateid));
WRITE32(el->seqid);
WRITEMEM(opargs->lock_stateid->data, sizeof(opargs->lock_stateid->data));
WRITE32(opargs->lock_seqid->sequence->counter);
}
return 0;
@ -775,8 +771,8 @@ static int encode_locku(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
RESERVE_SPACE(44);
WRITE32(OP_LOCKU);
WRITE32(arg->type);
WRITE32(opargs->seqid);
WRITEMEM(&opargs->stateid, sizeof(opargs->stateid));
WRITE32(opargs->seqid->sequence->counter);
WRITEMEM(opargs->stateid->data, sizeof(opargs->stateid->data));
WRITE64(arg->offset);
WRITE64(arg->length);
@ -826,7 +822,7 @@ static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_opena
*/
RESERVE_SPACE(8);
WRITE32(OP_OPEN);
WRITE32(arg->seqid);
WRITE32(arg->seqid->sequence->counter);
encode_share_access(xdr, arg->open_flags);
RESERVE_SPACE(16);
WRITE64(arg->clientid);
@ -941,7 +937,7 @@ static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_con
RESERVE_SPACE(8+sizeof(arg->stateid.data));
WRITE32(OP_OPEN_CONFIRM);
WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
WRITE32(arg->seqid);
WRITE32(arg->seqid->sequence->counter);
return 0;
}
@ -950,10 +946,10 @@ static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closea
{
uint32_t *p;
RESERVE_SPACE(8+sizeof(arg->stateid.data));
RESERVE_SPACE(8+sizeof(arg->stateid->data));
WRITE32(OP_OPEN_DOWNGRADE);
WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
WRITE32(arg->seqid);
WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
WRITE32(arg->seqid->sequence->counter);
encode_share_access(xdr, arg->open_flags);
return 0;
}
@ -1437,6 +1433,9 @@ static int nfs4_xdr_enc_open(struct rpc_rqst *req, uint32_t *p, struct nfs_opena
};
int status;
status = nfs_wait_on_sequence(args->seqid, req->rq_task);
if (status != 0)
goto out;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
status = encode_putfh(&xdr, args->fh);
@ -1464,6 +1463,9 @@ static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, uint32_t *p, struct n
};
int status;
status = nfs_wait_on_sequence(args->seqid, req->rq_task);
if (status != 0)
goto out;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
status = encode_putfh(&xdr, args->fh);
@ -1485,6 +1487,9 @@ static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, uint32_t *p, struct nf
};
int status;
status = nfs_wait_on_sequence(args->seqid, req->rq_task);
if (status != 0)
goto out;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
status = encode_putfh(&xdr, args->fh);
@ -1525,8 +1530,15 @@ static int nfs4_xdr_enc_lock(struct rpc_rqst *req, uint32_t *p, struct nfs_locka
struct compound_hdr hdr = {
.nops = 2,
};
struct nfs_lock_opargs *opargs = args->u.lock;
int status;
status = nfs_wait_on_sequence(opargs->lock_seqid, req->rq_task);
if (status != 0)
goto out;
/* Do we need to do an open_to_lock_owner? */
if (opargs->lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED)
opargs->new_lock_owner = 0;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
status = encode_putfh(&xdr, args->fh);
@ -2890,8 +2902,8 @@ static int decode_lock(struct xdr_stream *xdr, struct nfs_lockres *res)
status = decode_op_hdr(xdr, OP_LOCK);
if (status == 0) {
READ_BUF(sizeof(nfs4_stateid));
COPYMEM(&res->u.stateid, sizeof(res->u.stateid));
READ_BUF(sizeof(res->u.stateid.data));
COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data));
} else if (status == -NFS4ERR_DENIED)
return decode_lock_denied(xdr, &res->u.denied);
return status;
@ -2913,8 +2925,8 @@ static int decode_locku(struct xdr_stream *xdr, struct nfs_lockres *res)
status = decode_op_hdr(xdr, OP_LOCKU);
if (status == 0) {
READ_BUF(sizeof(nfs4_stateid));
COPYMEM(&res->u.stateid, sizeof(res->u.stateid));
READ_BUF(sizeof(res->u.stateid.data));
COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data));
}
return status;
}

2
fs/nfs/proc.c
View File

@ -216,7 +216,7 @@ static int nfs_proc_write(struct nfs_write_data *wdata)
static int
nfs_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
int flags)
int flags, struct nameidata *nd)
{
struct nfs_fh fhandle;
struct nfs_fattr fattr;

79
fs/open.c
View File

@ -739,7 +739,8 @@ asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group)
}
static struct file *__dentry_open(struct dentry *dentry, struct vfsmount *mnt,
int flags, struct file *f)
int flags, struct file *f,
int (*open)(struct inode *, struct file *))
{
struct inode *inode;
int error;
@ -761,11 +762,14 @@ static struct file *__dentry_open(struct dentry *dentry, struct vfsmount *mnt,
f->f_op = fops_get(inode->i_fop);
file_move(f, &inode->i_sb->s_files);
if (f->f_op && f->f_op->open) {
error = f->f_op->open(inode,f);
if (!open && f->f_op)
open = f->f_op->open;
if (open) {
error = open(inode, f);
if (error)
goto cleanup_all;
}
f->f_flags &= ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC);
file_ra_state_init(&f->f_ra, f->f_mapping->host->i_mapping);
@ -814,28 +818,75 @@ struct file *filp_open(const char * filename, int flags, int mode)
{
int namei_flags, error;
struct nameidata nd;
struct file *f;
namei_flags = flags;
if ((namei_flags+1) & O_ACCMODE)
namei_flags++;
if (namei_flags & O_TRUNC)
namei_flags |= 2;
error = -ENFILE;
f = get_empty_filp();
if (f == NULL)
return ERR_PTR(error);
error = open_namei(filename, namei_flags, mode, &nd);
if (!error)
return __dentry_open(nd.dentry, nd.mnt, flags, f);
return nameidata_to_filp(&nd, flags);
put_filp(f);
return ERR_PTR(error);
}
EXPORT_SYMBOL(filp_open);
/**
* lookup_instantiate_filp - instantiates the open intent filp
* @nd: pointer to nameidata
* @dentry: pointer to dentry
* @open: open callback
*
* Helper for filesystems that want to use lookup open intents and pass back
* a fully instantiated struct file to the caller.
* This function is meant to be called from within a filesystem's
* lookup method.
* Note that in case of error, nd->intent.open.file is destroyed, but the
* path information remains valid.
* If the open callback is set to NULL, then the standard f_op->open()
* filesystem callback is substituted.
*/
struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry,
int (*open)(struct inode *, struct file *))
{
if (IS_ERR(nd->intent.open.file))
goto out;
if (IS_ERR(dentry))
goto out_err;
nd->intent.open.file = __dentry_open(dget(dentry), mntget(nd->mnt),
nd->intent.open.flags - 1,
nd->intent.open.file,
open);
out:
return nd->intent.open.file;
out_err:
release_open_intent(nd);
nd->intent.open.file = (struct file *)dentry;
goto out;
}
EXPORT_SYMBOL_GPL(lookup_instantiate_filp);
/**
* nameidata_to_filp - convert a nameidata to an open filp.
* @nd: pointer to nameidata
* @flags: open flags
*
* Note that this function destroys the original nameidata
*/
struct file *nameidata_to_filp(struct nameidata *nd, int flags)
{
struct file *filp;
/* Pick up the filp from the open intent */
filp = nd->intent.open.file;
/* Has the filesystem initialised the file for us? */
if (filp->f_dentry == NULL)
filp = __dentry_open(nd->dentry, nd->mnt, flags, filp, NULL);
else
path_release(nd);
return filp;
}
struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags)
{
int error;
@ -846,7 +897,7 @@ struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags)
if (f == NULL)
return ERR_PTR(error);
return __dentry_open(dentry, mnt, flags, f);
return __dentry_open(dentry, mnt, flags, f, NULL);
}
EXPORT_SYMBOL(dentry_open);

12
fs/proc/base.c
View File

@ -103,7 +103,9 @@ enum pid_directory_inos {
PROC_TGID_NUMA_MAPS,
PROC_TGID_MOUNTS,
PROC_TGID_WCHAN,
#ifdef CONFIG_MMU
PROC_TGID_SMAPS,
#endif
#ifdef CONFIG_SCHEDSTATS
PROC_TGID_SCHEDSTAT,
#endif
@ -141,7 +143,9 @@ enum pid_directory_inos {
PROC_TID_NUMA_MAPS,
PROC_TID_MOUNTS,
PROC_TID_WCHAN,
#ifdef CONFIG_MMU
PROC_TID_SMAPS,
#endif
#ifdef CONFIG_SCHEDSTATS
PROC_TID_SCHEDSTAT,
#endif
@ -195,7 +199,9 @@ static struct pid_entry tgid_base_stuff[] = {
E(PROC_TGID_ROOT, "root", S_IFLNK|S_IRWXUGO),
E(PROC_TGID_EXE, "exe", S_IFLNK|S_IRWXUGO),
E(PROC_TGID_MOUNTS, "mounts", S_IFREG|S_IRUGO),
#ifdef CONFIG_MMU
E(PROC_TGID_SMAPS, "smaps", S_IFREG|S_IRUGO),
#endif
#ifdef CONFIG_SECURITY
E(PROC_TGID_ATTR, "attr", S_IFDIR|S_IRUGO|S_IXUGO),
#endif
@ -235,7 +241,9 @@ static struct pid_entry tid_base_stuff[] = {
E(PROC_TID_ROOT, "root", S_IFLNK|S_IRWXUGO),
E(PROC_TID_EXE, "exe", S_IFLNK|S_IRWXUGO),
E(PROC_TID_MOUNTS, "mounts", S_IFREG|S_IRUGO),
#ifdef CONFIG_MMU
E(PROC_TID_SMAPS, "smaps", S_IFREG|S_IRUGO),
#endif
#ifdef CONFIG_SECURITY
E(PROC_TID_ATTR, "attr", S_IFDIR|S_IRUGO|S_IXUGO),
#endif
@ -630,6 +638,7 @@ static struct file_operations proc_numa_maps_operations = {
};
#endif
#ifdef CONFIG_MMU
extern struct seq_operations proc_pid_smaps_op;
static int smaps_open(struct inode *inode, struct file *file)
{
@ -648,6 +657,7 @@ static struct file_operations proc_smaps_operations = {
.llseek = seq_lseek,
.release = seq_release,
};
#endif
extern struct seq_operations mounts_op;
static int mounts_open(struct inode *inode, struct file *file)
@ -1681,10 +1691,12 @@ static struct dentry *proc_pident_lookup(struct inode *dir,
case PROC_TGID_MOUNTS:
inode->i_fop = &proc_mounts_operations;
break;
#ifdef CONFIG_MMU
case PROC_TID_SMAPS:
case PROC_TGID_SMAPS:
inode->i_fop = &proc_smaps_operations;
break;
#endif
#ifdef CONFIG_SECURITY
case PROC_TID_ATTR:
inode->i_nlink = 2;

1
fs/proc/nommu.c
View File

@ -91,6 +91,7 @@ static void *nommu_vma_list_start(struct seq_file *m, loff_t *_pos)
next = _rb;
break;
}
pos--;
}
return next;

1
include/asm-arm/arch-pxa/pxafb.h
View File

@ -66,4 +66,5 @@ struct pxafb_mach_info {
};
void set_pxa_fb_info(struct pxafb_mach_info *hard_pxa_fb_info);
void set_pxa_fb_parent(struct device *parent_dev);
unsigned long pxafb_get_hsync_time(struct device *dev);

58
include/asm-arm/arch-s3c2410/io.h
View File

@ -9,7 +9,7 @@
* 06-Dec-1997 RMK Created.
* 02-Sep-2003 BJD Modified for S3C2410
* 10-Mar-2005 LCVR Changed S3C2410_VA to S3C24XX_VA
*
* 13-Oct-2005 BJD Fixed problems with LDRH/STRH offset range
*/
#ifndef __ASM_ARM_ARCH_IO_H
@ -97,7 +97,7 @@ DECLARE_IO(int,l,"")
else \
__asm__ __volatile__( \
"strb %0, [%1, #0] @ outbc" \
: : "r" (value), "r" ((port))); \
: : "r" (value), "r" ((port))); \
})
#define __inbc(port) \
@ -110,35 +110,61 @@ DECLARE_IO(int,l,"")
else \
__asm__ __volatile__( \
"ldrb %0, [%1, #0] @ inbc" \
: "=r" (result) : "r" ((port))); \
: "=r" (result) : "r" ((port))); \
result; \
})
#define __outwc(value,port) \
({ \
unsigned long v = value; \
if (__PORT_PCIO((port))) \
__asm__ __volatile__( \
"strh %0, [%1, %2] @ outwc" \
: : "r" (v), "r" (PCIO_BASE), "Jr" ((port))); \
else \
if (__PORT_PCIO((port))) { \
if ((port) < 256 && (port) > -256) \
__asm__ __volatile__( \
"strh %0, [%1, %2] @ outwc" \
: : "r" (v), "r" (PCIO_BASE), "Jr" ((port))); \
else if ((port) > 0) \
__asm__ __volatile__( \
"strh %0, [%1, %2] @ outwc" \
: : "r" (v), \
"r" (PCIO_BASE + ((port) & ~0xff)), \
"Jr" (((port) & 0xff))); \
else \
__asm__ __volatile__( \
"strh %0, [%1, #0] @ outwc" \
: : "r" (v), \
"r" (PCIO_BASE + (port))); \
} else \
__asm__ __volatile__( \
"strh %0, [%1, #0] @ outwc" \
: : "r" (v), "r" ((port))); \
: : "r" (v), "r" ((port))); \
})
#define __inwc(port) \
({ \
unsigned short result; \
if (__PORT_PCIO((port))) \
__asm__ __volatile__( \
"ldrh %0, [%1, %2] @ inwc" \
: "=r" (result) : "r" (PCIO_BASE), "Jr" ((port))); \
else \
if (__PORT_PCIO((port))) { \
if ((port) < 256 && (port) > -256 ) \
__asm__ __volatile__( \
"ldrh %0, [%1, %2] @ inwc" \
: "=r" (result) \
: "r" (PCIO_BASE), \
"Jr" ((port))); \
else if ((port) > 0) \
__asm__ __volatile__( \
"ldrh %0, [%1, %2] @ inwc" \
: "=r" (result) \
: "r" (PCIO_BASE + ((port) & ~0xff)), \
"Jr" (((port) & 0xff))); \
else \
__asm__ __volatile__( \
"ldrh %0, [%1, #0] @ inwc" \
: "=r" (result) \
: "r" (PCIO_BASE + ((port)))); \
} else \
__asm__ __volatile__( \
"ldrh %0, [%1, #0] @ inwc" \
: "=r" (result) : "r" ((port))); \
result; \
: "=r" (result) : "r" ((port))); \
result; \
})
#define __outlc(value,port) \

30
include/asm-sparc64/pbm.h
View File

@ -27,23 +27,27 @@
* PCI bus.
*/
#define PBM_LOGCLUSTERS 3
#define PBM_NCLUSTERS (1 << PBM_LOGCLUSTERS)
struct pci_controller_info;
/* This contains the software state necessary to drive a PCI
* controller's IOMMU.
*/
struct pci_iommu_arena {
unsigned long *map;
unsigned int hint;
unsigned int limit;
};
struct pci_iommu {
/* This protects the controller's IOMMU and all
* streaming buffers underneath.
*/
spinlock_t lock;
struct pci_iommu_arena arena;
/* IOMMU page table, a linear array of ioptes. */
iopte_t *page_table; /* The page table itself. */
int page_table_sz_bits; /* log2 of ow many pages does it map? */
/* Base PCI memory space address where IOMMU mappings
* begin.
@ -62,12 +66,6 @@ struct pci_iommu {
*/
unsigned long write_complete_reg;
/* The lowest used consistent mapping entry. Since
* we allocate consistent maps out of cluster 0 this
* is relative to the beginning of closter 0.
*/
u32 lowest_consistent_map;
/* In order to deal with some buggy third-party PCI bridges that
* do wrong prefetching, we never mark valid mappings as invalid.
* Instead we point them at this dummy page.
@ -75,16 +73,6 @@ struct pci_iommu {
unsigned long dummy_page;
unsigned long dummy_page_pa;
/* If PBM_NCLUSTERS is ever decreased to 4 or lower,
* or if largest supported page_table_sz * 8K goes above
* 2GB, you must increase the size of the type of
* these counters. You have been duly warned. -DaveM
*/
struct {
u16 next;
u16 flush;
} alloc_info[PBM_NCLUSTERS];
/* CTX allocation. */
unsigned long ctx_lowest_free;
unsigned long ctx_bitmap[IOMMU_NUM_CTXS / (sizeof(unsigned long) * 8)];
@ -102,7 +90,7 @@ struct pci_iommu {
u32 dma_addr_mask;
};
extern void pci_iommu_table_init(struct pci_iommu *, int);
extern void pci_iommu_table_init(struct pci_iommu *iommu, int tsbsize, u32 dma_offset, u32 dma_addr_mask);
/* This describes a PCI bus module's streaming buffer. */
struct pci_strbuf {

4
include/linux/acct.h
View File

@ -162,13 +162,13 @@ typedef struct acct acct_t;
#ifdef __KERNEL__
/*
* Yet another set of HZ to *HZ helper functions.
* See <linux/times.h> for the original.
* See <linux/jiffies.h> for the original.
*/
static inline u32 jiffies_to_AHZ(unsigned long x)
{
#if (TICK_NSEC % (NSEC_PER_SEC / AHZ)) == 0
return x / (HZ / USER_HZ);
return x / (HZ / AHZ);
#else
u64 tmp = (u64)x * TICK_NSEC;
do_div(tmp, (NSEC_PER_SEC / AHZ));

7
include/linux/aio.h
View File

@ -24,7 +24,12 @@ struct kioctx;
#define KIOCB_SYNC_KEY (~0U)
/* ki_flags bits */
#define KIF_LOCKED 0
/*
* This may be used for cancel/retry serialization in the future, but
* for now it's unused and we probably don't want modules to even
* think they can use it.
*/
/* #define KIF_LOCKED 0 */
#define KIF_KICKED 1
#define KIF_CANCELLED 2

16
include/linux/cpumask.h
View File

@ -393,15 +393,13 @@ extern cpumask_t cpu_present_map;
#define for_each_present_cpu(cpu) for_each_cpu_mask((cpu), cpu_present_map)
/* Find the highest possible smp_processor_id() */
static inline unsigned int highest_possible_processor_id(void)
{
unsigned int cpu, highest = 0;
for_each_cpu_mask(cpu, cpu_possible_map)
highest = cpu;
return highest;
}
#define highest_possible_processor_id() \
({ \
unsigned int cpu, highest = 0; \
for_each_cpu_mask(cpu, cpu_possible_map) \
highest = cpu; \
highest; \
})
#endif /* __LINUX_CPUMASK_H */

39
include/linux/list.h
View File

@ -442,12 +442,14 @@ static inline void list_splice_init(struct list_head *list,
* as long as the traversal is guarded by rcu_read_lock().
*/
#define list_for_each_rcu(pos, head) \
for (pos = (head)->next; prefetch(pos->next), pos != (head); \
pos = rcu_dereference(pos->next))
for (pos = (head)->next; \
prefetch(rcu_dereference(pos)->next), pos != (head); \
pos = pos->next)
#define __list_for_each_rcu(pos, head) \
for (pos = (head)->next; pos != (head); \
pos = rcu_dereference(pos->next))
for (pos = (head)->next; \
rcu_dereference(pos) != (head); \
pos = pos->next)
/**
* list_for_each_safe_rcu - iterate over an rcu-protected list safe
@ -461,8 +463,9 @@ static inline void list_splice_init(struct list_head *list,
* as long as the traversal is guarded by rcu_read_lock().
*/
#define list_for_each_safe_rcu(pos, n, head) \
for (pos = (head)->next, n = pos->next; pos != (head); \
pos = rcu_dereference(n), n = pos->next)
for (pos = (head)->next; \
n = rcu_dereference(pos)->next, pos != (head); \
pos = n)
/**
* list_for_each_entry_rcu - iterate over rcu list of given type
@ -474,11 +477,11 @@ static inline void list_splice_init(struct list_head *list,
* the _rcu list-mutation primitives such as list_add_rcu()
* as long as the traversal is guarded by rcu_read_lock().
*/
#define list_for_each_entry_rcu(pos, head, member) \
for (pos = list_entry((head)->next, typeof(*pos), member); \
prefetch(pos->member.next), &pos->member != (head); \
pos = rcu_dereference(list_entry(pos->member.next, \
typeof(*pos), member)))
#define list_for_each_entry_rcu(pos, head, member) \
for (pos = list_entry((head)->next, typeof(*pos), member); \
prefetch(rcu_dereference(pos)->member.next), \
&pos->member != (head); \
pos = list_entry(pos->member.next, typeof(*pos), member))
/**
@ -492,8 +495,9 @@ static inline void list_splice_init(struct list_head *list,
* as long as the traversal is guarded by rcu_read_lock().
*/
#define list_for_each_continue_rcu(pos, head) \
for ((pos) = (pos)->next; prefetch((pos)->next), (pos) != (head); \
(pos) = rcu_dereference((pos)->next))
for ((pos) = (pos)->next; \
prefetch(rcu_dereference((pos))->next), (pos) != (head); \
(pos) = (pos)->next)
/*
* Double linked lists with a single pointer list head.
@ -696,8 +700,9 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev,
pos = n)
#define hlist_for_each_rcu(pos, head) \
for ((pos) = (head)->first; pos && ({ prefetch((pos)->next); 1; }); \
(pos) = rcu_dereference((pos)->next))
for ((pos) = (head)->first; \
rcu_dereference((pos)) && ({ prefetch((pos)->next); 1; }); \
(pos) = (pos)->next)
/**
* hlist_for_each_entry - iterate over list of given type
@ -762,9 +767,9 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev,
*/
#define hlist_for_each_entry_rcu(tpos, pos, head, member) \
for (pos = (head)->first; \
pos && ({ prefetch(pos->next); 1;}) && \
rcu_dereference(pos) && ({ prefetch(pos->next); 1;}) && \
({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
pos = rcu_dereference(pos->next))
pos = pos->next)
#else
#warning "don't include kernel headers in userspace"

8
include/linux/namei.h
View File

@ -8,6 +8,7 @@ struct vfsmount;
struct open_intent {
int flags;
int create_mode;
struct file *file;
};
enum { MAX_NESTED_LINKS = 5 };
@ -65,6 +66,13 @@ extern int FASTCALL(link_path_walk(const char *, struct nameidata *));
extern void path_release(struct nameidata *);
extern void path_release_on_umount(struct nameidata *);
extern int __user_path_lookup_open(const char __user *, unsigned lookup_flags, struct nameidata *nd, int open_flags);
extern int path_lookup_open(const char *, unsigned lookup_flags, struct nameidata *, int open_flags);
extern struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry,
int (*open)(struct inode *, struct file *));
extern struct file *nameidata_to_filp(struct nameidata *nd, int flags);
extern void release_open_intent(struct nameidata *);
extern struct dentry * lookup_one_len(const char *, struct dentry *, int);
extern struct dentry * lookup_hash(struct qstr *, struct dentry *);

36
include/linux/nfs_xdr.h
View File

@ -96,12 +96,13 @@ struct nfs4_change_info {
u64 after;
};
struct nfs_seqid;
/*
* Arguments to the open call.
*/
struct nfs_openargs {
const struct nfs_fh * fh;
__u32 seqid;
struct nfs_seqid * seqid;
int open_flags;
__u64 clientid;
__u32 id;
@ -136,7 +137,7 @@ struct nfs_openres {
struct nfs_open_confirmargs {
const struct nfs_fh * fh;
nfs4_stateid stateid;
__u32 seqid;
struct nfs_seqid * seqid;
};
struct nfs_open_confirmres {
@ -148,8 +149,8 @@ struct nfs_open_confirmres {
*/
struct nfs_closeargs {
struct nfs_fh * fh;
nfs4_stateid stateid;
__u32 seqid;
nfs4_stateid * stateid;
struct nfs_seqid * seqid;
int open_flags;
};
@ -164,30 +165,19 @@ struct nfs_lowner {
u32 id;
};
struct nfs_open_to_lock {
__u32 open_seqid;
nfs4_stateid open_stateid;
__u32 lock_seqid;
struct nfs_lowner lock_owner;
};
struct nfs_exist_lock {
nfs4_stateid stateid;
__u32 seqid;
};
struct nfs_lock_opargs {
struct nfs_seqid * lock_seqid;
nfs4_stateid * lock_stateid;
struct nfs_seqid * open_seqid;
nfs4_stateid * open_stateid;
struct nfs_lowner lock_owner;
__u32 reclaim;
__u32 new_lock_owner;
union {
struct nfs_open_to_lock *open_lock;
struct nfs_exist_lock *exist_lock;
} u;
};
struct nfs_locku_opargs {
__u32 seqid;
nfs4_stateid stateid;
struct nfs_seqid * seqid;
nfs4_stateid * stateid;
};
struct nfs_lockargs {
@ -722,7 +712,7 @@ struct nfs_rpc_ops {
int (*write) (struct nfs_write_data *);
int (*commit) (struct nfs_write_data *);
int (*create) (struct inode *, struct dentry *,
struct iattr *, int);
struct iattr *, int, struct nameidata *);
int (*remove) (struct inode *, struct qstr *);
int (*unlink_setup) (struct rpc_message *,
struct dentry *, struct qstr *);

1
include/linux/rcupdate.h
View File

@ -94,6 +94,7 @@ struct rcu_data {
long batch; /* Batch # for current RCU batch */
struct rcu_head *nxtlist;
struct rcu_head **nxttail;
long count; /* # of queued items */
struct rcu_head *curlist;
struct rcu_head **curtail;
struct rcu_head *donelist;

1
include/linux/sunrpc/xprt.h
View File

@ -211,6 +211,7 @@ int xprt_reserve_xprt(struct rpc_task *task);
int xprt_reserve_xprt_cong(struct rpc_task *task);
int xprt_prepare_transmit(struct rpc_task *task);
void xprt_transmit(struct rpc_task *task);
void xprt_abort_transmit(struct rpc_task *task);
int xprt_adjust_timeout(struct rpc_rqst *req);
void xprt_release_xprt(struct rpc_xprt *xprt, struct rpc_task *task);
void xprt_release_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task);

3
kernel/posix-cpu-timers.c
View File

@ -424,6 +424,7 @@ static void cleanup_timers(struct list_head *head,
cputime_t ptime = cputime_add(utime, stime);
list_for_each_entry_safe(timer, next, head, entry) {
put_task_struct(timer->task);
timer->task = NULL;
list_del_init(&timer->entry);
if (cputime_lt(timer->expires.cpu, ptime)) {
@ -436,6 +437,7 @@ static void cleanup_timers(struct list_head *head,
++head;
list_for_each_entry_safe(timer, next, head, entry) {
put_task_struct(timer->task);
timer->task = NULL;
list_del_init(&timer->entry);
if (cputime_lt(timer->expires.cpu, utime)) {
@ -448,6 +450,7 @@ static void cleanup_timers(struct list_head *head,
++head;
list_for_each_entry_safe(timer, next, head, entry) {
put_task_struct(timer->task);
timer->task = NULL;
list_del_init(&timer->entry);
if (timer->expires.sched < sched_time) {

13
kernel/rcupdate.c
View File

@ -71,7 +71,7 @@ DEFINE_PER_CPU(struct rcu_data, rcu_bh_data) = { 0L };
/* Fake initialization required by compiler */
static DEFINE_PER_CPU(struct tasklet_struct, rcu_tasklet) = {NULL};
static int maxbatch = 10;
static int maxbatch = 10000;
#ifndef __HAVE_ARCH_CMPXCHG
/*
@ -109,6 +109,10 @@ void fastcall call_rcu(struct rcu_head *head,
rdp = &__get_cpu_var(rcu_data);
*rdp->nxttail = head;
rdp->nxttail = &head->next;
if (unlikely(++rdp->count > 10000))
set_need_resched();
local_irq_restore(flags);
}
@ -140,6 +144,12 @@ void fastcall call_rcu_bh(struct rcu_head *head,
rdp = &__get_cpu_var(rcu_bh_data);
*rdp->nxttail = head;
rdp->nxttail = &head->next;
rdp->count++;
/*
* Should we directly call rcu_do_batch() here ?
* if (unlikely(rdp->count > 10000))
* rcu_do_batch(rdp);
*/
local_irq_restore(flags);
}
@ -157,6 +167,7 @@ static void rcu_do_batch(struct rcu_data *rdp)
next = rdp->donelist = list->next;
list->func(list);
list = next;
rdp->count--;
if (++count >= maxbatch)
break;
}

1
kernel/time.c
View File

@ -570,6 +570,7 @@ void getnstimeofday(struct timespec *tv)
tv->tv_sec = x.tv_sec;
tv->tv_nsec = x.tv_usec * NSEC_PER_USEC;
}
EXPORT_SYMBOL_GPL(getnstimeofday);
#endif
#if (BITS_PER_LONG < 64)

13
mm/vmscan.c
View File

@ -511,10 +511,11 @@ static int shrink_list(struct list_head *page_list, struct scan_control *sc)
* PageDirty _after_ making sure that the page is freeable and
* not in use by anybody. (pagecache + us == 2)
*/
if (page_count(page) != 2 || PageDirty(page)) {
write_unlock_irq(&mapping->tree_lock);
goto keep_locked;
}
if (unlikely(page_count(page) != 2))
goto cannot_free;
smp_rmb();
if (unlikely(PageDirty(page)))
goto cannot_free;
#ifdef CONFIG_SWAP
if (PageSwapCache(page)) {
@ -538,6 +539,10 @@ free_it:
__pagevec_release_nonlru(&freed_pvec);
continue;
cannot_free:
write_unlock_irq(&mapping->tree_lock);
goto keep_locked;
activate_locked:
SetPageActive(page);
pgactivate++;

1
net/ipv6/netfilter/ip6_tables.c
View File

@ -975,7 +975,6 @@ replace_table(struct ip6t_table *table,
struct ip6t_entry *table_base;
unsigned int i;
for (i = 0; i < num_possible_cpus(); i++) {
for_each_cpu(i) {
table_base =
(void *)newinfo->entries

26
net/sunrpc/clnt.c
View File

@ -678,13 +678,11 @@ call_allocate(struct rpc_task *task)
static void
call_encode(struct rpc_task *task)
{
struct rpc_clnt *clnt = task->tk_client;
struct rpc_rqst *req = task->tk_rqstp;
struct xdr_buf *sndbuf = &req->rq_snd_buf;
struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
unsigned int bufsiz;
kxdrproc_t encode;
int status;
u32 *p;
dprintk("RPC: %4d call_encode (status %d)\n",
@ -712,12 +710,9 @@ call_encode(struct rpc_task *task)
rpc_exit(task, -EIO);
return;
}
if (encode && (status = rpcauth_wrap_req(task, encode, req, p,
task->tk_msg.rpc_argp)) < 0) {
printk(KERN_WARNING "%s: can't encode arguments: %d\n",
clnt->cl_protname, -status);
rpc_exit(task, status);
}
if (encode != NULL)
task->tk_status = rpcauth_wrap_req(task, encode, req, p,
task->tk_msg.rpc_argp);
}
/*
@ -759,7 +754,8 @@ call_bind_status(struct rpc_task *task)
case -EACCES:
dprintk("RPC: %4d remote rpcbind: RPC program/version unavailable\n",
task->tk_pid);
break;
rpc_delay(task, 3*HZ);
goto retry_bind;
case -ETIMEDOUT:
dprintk("RPC: %4d rpcbind request timed out\n",
task->tk_pid);
@ -864,10 +860,12 @@ call_transmit(struct rpc_task *task)
if (task->tk_status != 0)
return;
/* Encode here so that rpcsec_gss can use correct sequence number. */
if (!task->tk_rqstp->rq_bytes_sent)
if (task->tk_rqstp->rq_bytes_sent == 0) {
call_encode(task);
if (task->tk_status < 0)
return;
/* Did the encode result in an error condition? */
if (task->tk_status != 0)
goto out_nosend;
}
xprt_transmit(task);
if (task->tk_status < 0)
return;
@ -875,6 +873,10 @@ call_transmit(struct rpc_task *task)
task->tk_action = NULL;
rpc_wake_up_task(task);
}
return;
out_nosend:
/* release socket write lock before attempting to handle error */
xprt_abort_transmit(task);
}
/*

8
net/sunrpc/xprt.c
View File

@ -709,6 +709,14 @@ out_unlock:
return err;
}
void
xprt_abort_transmit(struct rpc_task *task)
{
struct rpc_xprt *xprt = task->tk_xprt;
xprt_release_write(xprt, task);
}
/**
* xprt_transmit - send an RPC request on a transport
* @task: controlling RPC task