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| author | K. Y. Srinivasan <kys@microsoft.com> | 2011-05-10 07:53:47 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-05-11 13:38:49 -0700 |
| commit | c56624988dabc11ae9872159401d1fca7e597f18 (patch) | |
| tree | d9f0d2d5a9610cc47d6d50f1956c8af964b0d483 /drivers/staging/hv/blkvsc_drv.c | |
| parent | ca8f3525a5bb536a9d56ca4727a5079287599288 (diff) | |
| download | kernel_samsung_smdk4412-c56624988dabc11ae9872159401d1fca7e597f18.zip kernel_samsung_smdk4412-c56624988dabc11ae9872159401d1fca7e597f18.tar.gz kernel_samsung_smdk4412-c56624988dabc11ae9872159401d1fca7e597f18.tar.bz2 | |
Staging: hv: Get rid of blkvsc_mutex
The blkvsc_mutex is unnecessary as the state it is protecting
(blkdev->users) is already protected by the spin lock.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/hv/blkvsc_drv.c')
| -rw-r--r-- | drivers/staging/hv/blkvsc_drv.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/staging/hv/blkvsc_drv.c b/drivers/staging/hv/blkvsc_drv.c index db44cf6..cfef1c0 100644 --- a/drivers/staging/hv/blkvsc_drv.c +++ b/drivers/staging/hv/blkvsc_drv.c @@ -27,7 +27,6 @@ #include <linux/major.h> #include <linux/delay.h> #include <linux/hdreg.h> -#include <linux/mutex.h> #include <linux/slab.h> #include <scsi/scsi.h> #include <scsi/scsi_cmnd.h> @@ -113,8 +112,6 @@ struct block_device_context { int users; }; -static DEFINE_MUTEX(blkvsc_mutex); - static const char *g_blk_driver_name = "blkvsc"; /* {32412632-86cb-44a2-9b5c-50d1417354f5} */ @@ -620,7 +617,6 @@ static int blkvsc_release(struct gendisk *disk, fmode_t mode) { struct block_device_context *blkdev = disk->private_data; - mutex_lock(&blkvsc_mutex); spin_lock(&blkdev->lock); if (blkdev->users == 1) { spin_unlock(&blkdev->lock); @@ -631,7 +627,6 @@ static int blkvsc_release(struct gendisk *disk, fmode_t mode) blkdev->users--; spin_unlock(&blkdev->lock); - mutex_unlock(&blkvsc_mutex); return 0; } |