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OpenCloudOS-Kernel
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Merge branches 'perf-urgent-for-linus', 'sched-urgent-for-linus', 'timers-urgent-for-linus' and 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  tools/perf: Fix static build of perf tool
  tracing: Fix regression in printk_formats file

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  generic-ipi: Fix kexec boot crash by initializing call_single_queue before enabling interrupts

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  clocksource: Make watchdog robust vs. interruption
  timerfd: Fix wakeup of processes when timer is cancelled on clock change

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, MAINTAINERS: Add x86 MCE people
  x86, efi: Do not reserve boot services regions within reserved areas
This commit is contained in:
Linus Torvalds 2011-06-19 09:00:18 -07:00
parent 357ed6b1a1 203db2952b d8ad7d1123 b5199515c2 c1f5c54b57
commit 8816ead9d8
12 changed files with 61 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
MAINTAINERS
View File

@ -7007,6 +7007,13 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86.
S: Maintained
F: drivers/platform/x86
X86 MCE INFRASTRUCTURE
M: Tony Luck <tony.luck@intel.com>
M: Borislav Petkov <bp@amd64.org>
L: linux-edac@vger.kernel.org
S: Maintained
F: arch/x86/kernel/cpu/mcheck/*
XEN HYPERVISOR INTERFACE
M: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
M: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

2
arch/x86/include/asm/memblock.h
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@ -4,7 +4,6 @@
#define ARCH_DISCARD_MEMBLOCK
u64 memblock_x86_find_in_range_size(u64 start, u64 *sizep, u64 align);
void memblock_x86_to_bootmem(u64 start, u64 end);
void memblock_x86_reserve_range(u64 start, u64 end, char *name);
void memblock_x86_free_range(u64 start, u64 end);
@ -19,5 +18,6 @@ u64 memblock_x86_hole_size(u64 start, u64 end);
u64 memblock_x86_find_in_range_node(int nid, u64 start, u64 end, u64 size, u64 align);
u64 memblock_x86_free_memory_in_range(u64 addr, u64 limit);
u64 memblock_x86_memory_in_range(u64 addr, u64 limit);
bool memblock_x86_check_reserved_size(u64 *addrp, u64 *sizep, u64 align);
#endif

4
arch/x86/mm/memblock.c
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@ -8,7 +8,7 @@
#include <linux/range.h>
/* Check for already reserved areas */
static bool __init check_with_memblock_reserved_size(u64 *addrp, u64 *sizep, u64 align)
bool __init memblock_x86_check_reserved_size(u64 *addrp, u64 *sizep, u64 align)
{
struct memblock_region *r;
u64 addr = *addrp, last;
@ -59,7 +59,7 @@ u64 __init memblock_x86_find_in_range_size(u64 start, u64 *sizep, u64 align)
if (addr >= ei_last)
continue;
*sizep = ei_last - addr;
while (check_with_memblock_reserved_size(&addr, sizep, align))
while (memblock_x86_check_reserved_size(&addr, sizep, align))
;
if (*sizep)

29
arch/x86/platform/efi/efi.c
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@ -310,14 +310,31 @@ void __init efi_reserve_boot_services(void)
for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
efi_memory_desc_t *md = p;
unsigned long long start = md->phys_addr;
unsigned long long size = md->num_pages << EFI_PAGE_SHIFT;
u64 start = md->phys_addr;
u64 size = md->num_pages << EFI_PAGE_SHIFT;
if (md->type != EFI_BOOT_SERVICES_CODE &&
md->type != EFI_BOOT_SERVICES_DATA)
continue;
memblock_x86_reserve_range(start, start + size, "EFI Boot");
/* Only reserve where possible:
* - Not within any already allocated areas
* - Not over any memory area (really needed, if above?)
* - Not within any part of the kernel
* - Not the bios reserved area
*/
if ((start+size >= virt_to_phys(_text)
&& start <= virt_to_phys(_end)) ||
!e820_all_mapped(start, start+size, E820_RAM) ||
memblock_x86_check_reserved_size(&start, &size,
1<<EFI_PAGE_SHIFT)) {
/* Could not reserve, skip it */
md->num_pages = 0;
memblock_dbg(PFX "Could not reserve boot range "
"[0x%010llx-0x%010llx]\n",
start, start+size-1);
} else
memblock_x86_reserve_range(start, start+size,
"EFI Boot");
}
}
@ -334,6 +351,10 @@ static void __init efi_free_boot_services(void)
md->type != EFI_BOOT_SERVICES_DATA)
continue;
/* Could not reserve boot area */
if (!size)
continue;
free_bootmem_late(start, size);
}
}

5
fs/timerfd.c
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@ -61,7 +61,9 @@ static enum hrtimer_restart timerfd_tmrproc(struct hrtimer *htmr)
/*
* Called when the clock was set to cancel the timers in the cancel
* list.
* list. This will wake up processes waiting on these timers. The
* wake-up requires ctx->ticks to be non zero, therefore we increment
* it before calling wake_up_locked().
*/
void timerfd_clock_was_set(void)
{
@ -76,6 +78,7 @@ void timerfd_clock_was_set(void)
spin_lock_irqsave(&ctx->wqh.lock, flags);
if (ctx->moffs.tv64 != moffs.tv64) {
ctx->moffs.tv64 = KTIME_MAX;
ctx->ticks++;
wake_up_locked(&ctx->wqh);
}
spin_unlock_irqrestore(&ctx->wqh.lock, flags);

1
include/linux/clocksource.h
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@ -188,6 +188,7 @@ struct clocksource {
#ifdef CONFIG_CLOCKSOURCE_WATCHDOG
/* Watchdog related data, used by the framework */
struct list_head wd_list;
cycle_t cs_last;
cycle_t wd_last;
#endif
} ____cacheline_aligned;

5
include/linux/smp.h
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@ -85,12 +85,15 @@ int smp_call_function_any(const struct cpumask *mask,
* Generic and arch helpers
*/
#ifdef CONFIG_USE_GENERIC_SMP_HELPERS
void __init call_function_init(void);
void generic_smp_call_function_single_interrupt(void);
void generic_smp_call_function_interrupt(void);
void ipi_call_lock(void);
void ipi_call_unlock(void);
void ipi_call_lock_irq(void);
void ipi_call_unlock_irq(void);
#else
static inline void call_function_init(void) { }
#endif
/*
@ -134,7 +137,7 @@ static inline void smp_send_reschedule(int cpu) { }
#define smp_prepare_boot_cpu() do {} while (0)
#define smp_call_function_many(mask, func, info, wait) \
(up_smp_call_function(func, info))
static inline void init_call_single_data(void) { }
static inline void call_function_init(void) { }
static inline int
smp_call_function_any(const struct cpumask *mask, smp_call_func_t func,

1
init/main.c
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@ -542,6 +542,7 @@ asmlinkage void __init start_kernel(void)
timekeeping_init();
time_init();
profile_init();
call_function_init();
if (!irqs_disabled())
printk(KERN_CRIT "start_kernel(): bug: interrupts were "
"enabled early\n");

5
kernel/smp.c
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@ -74,7 +74,7 @@ static struct notifier_block __cpuinitdata hotplug_cfd_notifier = {
.notifier_call = hotplug_cfd,
};
static int __cpuinit init_call_single_data(void)
void __init call_function_init(void)
{
void *cpu = (void *)(long)smp_processor_id();
int i;
@ -88,10 +88,7 @@ static int __cpuinit init_call_single_data(void)
hotplug_cfd(&hotplug_cfd_notifier, CPU_UP_PREPARE, cpu);
register_cpu_notifier(&hotplug_cfd_notifier);
return 0;
}
early_initcall(init_call_single_data);
/*
* csd_lock/csd_unlock used to serialize access to per-cpu csd resources

24
kernel/time/clocksource.c
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@ -185,7 +185,6 @@ static struct clocksource *watchdog;
static struct timer_list watchdog_timer;
static DECLARE_WORK(watchdog_work, clocksource_watchdog_work);
static DEFINE_SPINLOCK(watchdog_lock);
static cycle_t watchdog_last;
static int watchdog_running;
static int clocksource_watchdog_kthread(void *data);
@ -254,11 +253,6 @@ static void clocksource_watchdog(unsigned long data)
if (!watchdog_running)
goto out;
wdnow = watchdog->read(watchdog);
wd_nsec = clocksource_cyc2ns((wdnow - watchdog_last) & watchdog->mask,
watchdog->mult, watchdog->shift);
watchdog_last = wdnow;
list_for_each_entry(cs, &watchdog_list, wd_list) {
/* Clocksource already marked unstable? */
@ -268,19 +262,28 @@ static void clocksource_watchdog(unsigned long data)
continue;
}
local_irq_disable();
csnow = cs->read(cs);
wdnow = watchdog->read(watchdog);
local_irq_enable();
/* Clocksource initialized ? */
if (!(cs->flags & CLOCK_SOURCE_WATCHDOG)) {
cs->flags |= CLOCK_SOURCE_WATCHDOG;
cs->wd_last = csnow;
cs->wd_last = wdnow;
cs->cs_last = csnow;
continue;
}
/* Check the deviation from the watchdog clocksource. */
cs_nsec = clocksource_cyc2ns((csnow - cs->wd_last) &
wd_nsec = clocksource_cyc2ns((wdnow - cs->wd_last) & watchdog->mask,
watchdog->mult, watchdog->shift);
cs_nsec = clocksource_cyc2ns((csnow - cs->cs_last) &
cs->mask, cs->mult, cs->shift);
cs->wd_last = csnow;
cs->cs_last = csnow;
cs->wd_last = wdnow;
/* Check the deviation from the watchdog clocksource. */
if (abs(cs_nsec - wd_nsec) > WATCHDOG_THRESHOLD) {
clocksource_unstable(cs, cs_nsec - wd_nsec);
continue;
@ -318,7 +321,6 @@ static inline void clocksource_start_watchdog(void)
return;
init_timer(&watchdog_timer);
watchdog_timer.function = clocksource_watchdog;
watchdog_last = watchdog->read(watchdog);
watchdog_timer.expires = jiffies + WATCHDOG_INTERVAL;
add_timer_on(&watchdog_timer, cpumask_first(cpu_online_mask));
watchdog_running = 1;

5
kernel/trace/trace_printk.c
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@ -240,13 +240,10 @@ static const char **find_next(void *v, loff_t *pos)
const char **fmt = v;
int start_index;
if (!fmt)
fmt = __start___trace_bprintk_fmt + *pos;
start_index = __stop___trace_bprintk_fmt - __start___trace_bprintk_fmt;
if (*pos < start_index)
return fmt;
return __start___trace_bprintk_fmt + *pos;
return find_next_mod_format(start_index, v, fmt, pos);
}

2
tools/perf/Makefile
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@ -633,7 +633,7 @@ prefix_SQ = $(subst ','\'',$(prefix))
SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
LIBS = -Wl,--whole-archive $(PERFLIBS) -Wl,--no-whole-archive $(EXTLIBS)
LIBS = -Wl,--whole-archive $(PERFLIBS) -Wl,--no-whole-archive -Wl,--start-group $(EXTLIBS) -Wl,--end-group
ALL_CFLAGS += $(BASIC_CFLAGS)
ALL_CFLAGS += $(ARCH_CFLAGS)