diff options
| author | Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com> | 2016-02-03 15:06:06 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-02-23 21:27:02 -0500 |
| commit | fbd185986ebafaeac900a1af1829fed2bf03242e (patch) | |
| tree | 90bbc9aad6b1e25c25b067d71da0449f237723e5 | |
| parent | 222a9fb376df0f4aec32493a3fb5d18fa56979f2 (diff) | |
| download | linux-fbd185986ebafaeac900a1af1829fed2bf03242e.tar.gz linux-fbd185986ebafaeac900a1af1829fed2bf03242e.tar.bz2 linux-fbd185986ebafaeac900a1af1829fed2bf03242e.zip | |
aacraid: Fix AIF triggered IOP_RESET
while driver removal is in progress or PCI shutdown is invoked, driver
kills AIF aacraid thread, but IOCTL requests from the management tools
re-start AIF thread leading to IOP_RESET.
Fixed by setting adapter_shutdown flag when PCI shutdown is invoked.
Signed-off-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com>
Reviewed-by: Shane Seymour <shane.seymour@hpe.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/aacraid/commctrl.c | 5 | ||||
| -rw-r--r-- | drivers/scsi/aacraid/comminit.c | 6 | ||||
| -rw-r--r-- | drivers/scsi/aacraid/linit.c | 5 |
3 files changed, 12 insertions, 4 deletions
diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c index ebf214b863a4..4b3bb52b5108 100644 --- a/drivers/scsi/aacraid/commctrl.c +++ b/drivers/scsi/aacraid/commctrl.c @@ -857,6 +857,11 @@ int aac_do_ioctl(struct aac_dev * dev, int cmd, void __user *arg) mutex_lock(&dev->ioctl_mutex); + if (dev->adapter_shutdown) { + status = -EACCES; + goto cleanup; + } + /* * HBA gets first crack */ diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index 0e954e37f0b5..2b4e75380ae6 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -212,8 +212,11 @@ int aac_send_shutdown(struct aac_dev * dev) return -ENOMEM; aac_fib_init(fibctx); - cmd = (struct aac_close *) fib_data(fibctx); + mutex_lock(&dev->ioctl_mutex); + dev->adapter_shutdown = 1; + mutex_unlock(&dev->ioctl_mutex); + cmd = (struct aac_close *) fib_data(fibctx); cmd->command = cpu_to_le32(VM_CloseAll); cmd->cid = cpu_to_le32(0xfffffffe); @@ -229,7 +232,6 @@ int aac_send_shutdown(struct aac_dev * dev) /* FIB should be freed only after getting the response from the F/W */ if (status != -ERESTARTSYS) aac_fib_free(fibctx); - dev->adapter_shutdown = 1; if ((dev->pdev->device == PMC_DEVICE_S7 || dev->pdev->device == PMC_DEVICE_S8 || dev->pdev->device == PMC_DEVICE_S9) && diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 3f9c7415bd7e..334f2a602fca 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -705,7 +705,7 @@ static long aac_cfg_ioctl(struct file *file, { struct aac_dev *aac = (struct aac_dev *)file->private_data; - if (!capable(CAP_SYS_RAWIO) || aac->adapter_shutdown) + if (!capable(CAP_SYS_RAWIO)) return -EPERM; return aac_do_ioctl(aac, cmd, (void __user *)arg); @@ -1072,6 +1072,8 @@ static void __aac_shutdown(struct aac_dev * aac) int i; int cpu; + aac_send_shutdown(aac); + if (aac->aif_thread) { int i; /* Clear out events first */ @@ -1083,7 +1085,6 @@ static void __aac_shutdown(struct aac_dev * aac) } kthread_stop(aac->thread); } - aac_send_shutdown(aac); aac_adapter_disable_int(aac); cpu = cpumask_first(cpu_online_mask); if (aac->pdev->device == PMC_DEVICE_S6 || |