From c56624988dabc11ae9872159401d1fca7e597f18 Mon Sep 17 00:00:00 2001 From: "K. Y. Srinivasan" Date: Tue, 10 May 2011 07:53:47 -0700 Subject: [PATCH] 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 Signed-off-by: Haiyang Zhang Signed-off-by: Abhishek Kane Signed-off-by: Hank Janssen Signed-off-by: Greg Kroah-Hartman --- drivers/staging/hv/blkvsc_drv.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/staging/hv/blkvsc_drv.c b/drivers/staging/hv/blkvsc_drv.c index db44cf683a03..cfef1c0bfb39 100644 --- a/drivers/staging/hv/blkvsc_drv.c +++ b/drivers/staging/hv/blkvsc_drv.c @@ -27,7 +27,6 @@ #include #include #include -#include #include #include #include @@ -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; } -- 2.34.1