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| author | Jiri Kosina <jkosina@suse.cz> | 2013-03-18 13:57:32 +0400 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2013-03-18 13:57:57 +0400 |
| commit | aa1262b3876ec5249ff464618a7dcd46b3ca54e2 (patch) | |
| tree | b150bb2c83c073e1f0e298ba7899148f7d991ef7 /drivers/scsi/scsi_lib.c | |
| parent | 806b2139db236e0cbd0b5833ab0ce139f0196bcd (diff) | |
| parent | 6dbe51c251a327e012439c4772097a13df43c5b8 (diff) | |
| download | linux-aa1262b3876ec5249ff464618a7dcd46b3ca54e2.tar.xz | |
Merge branch 'master' into for-next
Sync with Linus' tree to be able to apply patch to the newly
added ITG-3200 driver.
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index f1bf5aff68ed..765398c063c7 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -2617,3 +2617,17 @@ void scsi_kunmap_atomic_sg(void *virt) kunmap_atomic(virt); } EXPORT_SYMBOL(scsi_kunmap_atomic_sg); + +void sdev_disable_disk_events(struct scsi_device *sdev) +{ + atomic_inc(&sdev->disk_events_disable_depth); +} +EXPORT_SYMBOL(sdev_disable_disk_events); + +void sdev_enable_disk_events(struct scsi_device *sdev) +{ + if (WARN_ON_ONCE(atomic_read(&sdev->disk_events_disable_depth) <= 0)) + return; + atomic_dec(&sdev->disk_events_disable_depth); +} +EXPORT_SYMBOL(sdev_enable_disk_events); |