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OpenCloudOS-Kernel
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  ieee1394: sbp2: fix race condition in state change
  ieee1394: fix list corruption (reported at module removal)
  firewire: fw-sbp2: another iPod mini quirk entry
  ieee1394: sbp2: another iPod mini quirk entry
This commit is contained in:
Linus Torvalds 2008-12-01 09:34:23 -08:00
parent c07f62e5f1 2642b11295
commit 6a12141130
4 changed files with 31 additions and 17 deletions
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5
drivers/firewire/fw-sbp2.c
View File

@ -370,6 +370,11 @@ static const struct {
.model = 0x000021,
.workarounds = SBP2_WORKAROUND_FIX_CAPACITY,
},
/* iPod mini */ {
.firmware_revision = 0x0a2700,
.model = 0x000022,
.workarounds = SBP2_WORKAROUND_FIX_CAPACITY,
},
/* iPod mini */ {
.firmware_revision = 0x0a2700,
.model = 0x000023,

25
drivers/ieee1394/highlevel.c
View File

@ -46,10 +46,6 @@ static DEFINE_RWLOCK(hl_irqs_lock);
static DEFINE_RWLOCK(addr_space_lock);
/* addr_space list will have zero and max already included as bounds */
static struct hpsb_address_ops dummy_ops = { NULL, NULL, NULL, NULL };
static struct hpsb_address_serve dummy_zero_addr, dummy_max_addr;
static struct hl_host_info *hl_get_hostinfo(struct hpsb_highlevel *hl,
struct hpsb_host *host)
@ -481,20 +477,23 @@ int hpsb_unregister_addrspace(struct hpsb_highlevel *hl, struct hpsb_host *host,
return retval;
}
static struct hpsb_address_ops dummy_ops;
/* dummy address spaces as lower and upper bounds of the host's a.s. list */
static void init_hpsb_highlevel(struct hpsb_host *host)
{
INIT_LIST_HEAD(&dummy_zero_addr.host_list);
INIT_LIST_HEAD(&dummy_zero_addr.hl_list);
INIT_LIST_HEAD(&dummy_max_addr.host_list);
INIT_LIST_HEAD(&dummy_max_addr.hl_list);
INIT_LIST_HEAD(&host->dummy_zero_addr.host_list);
INIT_LIST_HEAD(&host->dummy_zero_addr.hl_list);
INIT_LIST_HEAD(&host->dummy_max_addr.host_list);
INIT_LIST_HEAD(&host->dummy_max_addr.hl_list);
dummy_zero_addr.op = dummy_max_addr.op = &dummy_ops;
host->dummy_zero_addr.op = host->dummy_max_addr.op = &dummy_ops;
dummy_zero_addr.start = dummy_zero_addr.end = 0;
dummy_max_addr.start = dummy_max_addr.end = ((u64) 1) << 48;
host->dummy_zero_addr.start = host->dummy_zero_addr.end = 0;
host->dummy_max_addr.start = host->dummy_max_addr.end = ((u64) 1) << 48;
list_add_tail(&dummy_zero_addr.host_list, &host->addr_space);
list_add_tail(&dummy_max_addr.host_list, &host->addr_space);
list_add_tail(&host->dummy_zero_addr.host_list, &host->addr_space);
list_add_tail(&host->dummy_max_addr.host_list, &host->addr_space);
}
void highlevel_add_host(struct hpsb_host *host)

4
drivers/ieee1394/hosts.h
View File

@ -13,6 +13,7 @@ struct module;
#include "ieee1394_types.h"
#include "csr.h"
#include "highlevel.h"
struct hpsb_packet;
struct hpsb_iso;
@ -72,6 +73,9 @@ struct hpsb_host {
struct { DECLARE_BITMAP(map, 64); } tl_pool[ALL_NODES];
struct csr_control csr;
struct hpsb_address_serve dummy_zero_addr;
struct hpsb_address_serve dummy_max_addr;
};
enum devctl_cmd {

14
drivers/ieee1394/sbp2.c
View File

@ -400,6 +400,11 @@ static const struct {
.model_id = 0x000021,
.workarounds = SBP2_WORKAROUND_FIX_CAPACITY,
},
/* iPod mini */ {
.firmware_revision = 0x0a2700,
.model_id = 0x000022,
.workarounds = SBP2_WORKAROUND_FIX_CAPACITY,
},
/* iPod mini */ {
.firmware_revision = 0x0a2700,
.model_id = 0x000023,
@ -890,12 +895,13 @@ static void sbp2_host_reset(struct hpsb_host *host)
return;
read_lock_irqsave(&sbp2_hi_logical_units_lock, flags);
list_for_each_entry(lu, &hi->logical_units, lu_list)
if (likely(atomic_read(&lu->state) !=
SBP2LU_STATE_IN_SHUTDOWN)) {
atomic_set(&lu->state, SBP2LU_STATE_IN_RESET);
if (atomic_cmpxchg(&lu->state,
SBP2LU_STATE_RUNNING, SBP2LU_STATE_IN_RESET)
== SBP2LU_STATE_RUNNING)
scsi_block_requests(lu->shost);
}
read_unlock_irqrestore(&sbp2_hi_logical_units_lock, flags);
}