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author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-09-12 11:14:33 -0400 |
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committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-09-12 11:14:33 -0400 |
commit | 25a765b7f05cb8460fa01b54568894b20e184862 (patch) | |
tree | 0b56db57b4d9f912393ab303c269e0fe6cdf8635 /drivers/scsi/libsas/sas_ata.c | |
parent | 9d2be9287107695708e6aae5105a8a518a6cb4d0 (diff) | |
parent | 64282278989d5b0398dcb3ba7904cb00c621dc35 (diff) | |
download | linux-stable-25a765b7f05cb8460fa01b54568894b20e184862.tar.gz linux-stable-25a765b7f05cb8460fa01b54568894b20e184862.tar.bz2 linux-stable-25a765b7f05cb8460fa01b54568894b20e184862.zip |
Merge branch 'x86/platform' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into stable/for-linus-3.7
* 'x86/platform' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (9690 commits)
x86: Document x86_init.paging.pagetable_init()
x86: xen: Cleanup and remove x86_init.paging.pagetable_setup_done()
x86: Move paging_init() call to x86_init.paging.pagetable_init()
x86: Rename pagetable_setup_start() to pagetable_init()
x86: Remove base argument from x86_init.paging.pagetable_setup_start
Linux 3.6-rc5
HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured
Remove user-triggerable BUG from mpol_to_str
xen/pciback: Fix proper FLR steps.
uml: fix compile error in deliver_alarm()
dj: memory scribble in logi_dj
Fix order of arguments to compat_put_time[spec|val]
xen: Use correct masking in xen_swiotlb_alloc_coherent.
xen: fix logical error in tlb flushing
xen/p2m: Fix one-off error in checking the P2M tree directory.
powerpc: Don't use __put_user() in patch_instruction
powerpc: Make sure IPI handlers see data written by IPI senders
powerpc: Restore correct DSCR in context switch
powerpc: Fix DSCR inheritance in copy_thread()
powerpc: Keep thread.dscr and thread.dscr_inherit in sync
...
Diffstat (limited to 'drivers/scsi/libsas/sas_ata.c')
-rw-r--r-- | drivers/scsi/libsas/sas_ata.c | 41 |
1 files changed, 35 insertions, 6 deletions
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c index d109cc3a17b6..a59fcdc8fd63 100644 --- a/drivers/scsi/libsas/sas_ata.c +++ b/drivers/scsi/libsas/sas_ata.c @@ -523,6 +523,31 @@ static void sas_ata_set_dmamode(struct ata_port *ap, struct ata_device *ata_dev) i->dft->lldd_ata_set_dmamode(dev); } +static void sas_ata_sched_eh(struct ata_port *ap) +{ + struct domain_device *dev = ap->private_data; + struct sas_ha_struct *ha = dev->port->ha; + unsigned long flags; + + spin_lock_irqsave(&ha->lock, flags); + if (!test_and_set_bit(SAS_DEV_EH_PENDING, &dev->state)) + ha->eh_active++; + ata_std_sched_eh(ap); + spin_unlock_irqrestore(&ha->lock, flags); +} + +void sas_ata_end_eh(struct ata_port *ap) +{ + struct domain_device *dev = ap->private_data; + struct sas_ha_struct *ha = dev->port->ha; + unsigned long flags; + + spin_lock_irqsave(&ha->lock, flags); + if (test_and_clear_bit(SAS_DEV_EH_PENDING, &dev->state)) + ha->eh_active--; + spin_unlock_irqrestore(&ha->lock, flags); +} + static struct ata_port_operations sas_sata_ops = { .prereset = ata_std_prereset, .hardreset = sas_ata_hard_reset, @@ -536,6 +561,8 @@ static struct ata_port_operations sas_sata_ops = { .port_start = ata_sas_port_start, .port_stop = ata_sas_port_stop, .set_dmamode = sas_ata_set_dmamode, + .sched_eh = sas_ata_sched_eh, + .end_eh = sas_ata_end_eh, }; static struct ata_port_info sata_port_info = { @@ -591,7 +618,6 @@ void sas_ata_task_abort(struct sas_task *task) spin_lock_irqsave(q->queue_lock, flags); blk_abort_request(qc->scsicmd->request); spin_unlock_irqrestore(q->queue_lock, flags); - scsi_schedule_eh(qc->scsicmd->device->host); return; } @@ -708,10 +734,6 @@ static void async_sas_ata_eh(void *data, async_cookie_t cookie) struct ata_port *ap = dev->sata_dev.ap; struct sas_ha_struct *ha = dev->port->ha; - /* hold a reference over eh since we may be racing with final - * remove once all commands are completed - */ - kref_get(&dev->kref); sas_ata_printk(KERN_DEBUG, dev, "dev error handler\n"); ata_scsi_port_error_handler(ha->core.shost, ap); sas_put_device(dev); @@ -720,7 +742,7 @@ static void async_sas_ata_eh(void *data, async_cookie_t cookie) void sas_ata_strategy_handler(struct Scsi_Host *shost) { struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost); - LIST_HEAD(async); + ASYNC_DOMAIN_EXCLUSIVE(async); int i; /* it's ok to defer revalidation events during ata eh, these @@ -742,6 +764,13 @@ void sas_ata_strategy_handler(struct Scsi_Host *shost) list_for_each_entry(dev, &port->dev_list, dev_list_node) { if (!dev_is_sata(dev)) continue; + + /* hold a reference over eh since we may be + * racing with final remove once all commands + * are completed + */ + kref_get(&dev->kref); + async_schedule_domain(async_sas_ata_eh, dev, &async); } spin_unlock(&port->dev_list_lock); |