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| author | K. Y. Srinivasan <kys@microsoft.com> | 2011-04-06 14:35:01 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-04-20 13:33:23 -0700 |
| commit | a55af7bee859e183c059415b608b6d72e5cd7426 (patch) | |
| tree | e69cd159a80d03c290f7e4d4f07d57b2585c2422 /drivers/staging | |
| parent | 6fc46203d103b23d813df864e8e319449bbec63e (diff) | |
| download | linux-a55af7bee859e183c059415b608b6d72e5cd7426.tar.bz2 | |
Staging: hv: Get rid of the forward declaration of blkvsc_open()
Get rid of the forward declaration of blkvsc_open() by moving the code around.
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')
| -rw-r--r-- | drivers/staging/hv/blkvsc_drv.c | 49 |
1 files changed, 24 insertions, 25 deletions
diff --git a/drivers/staging/hv/blkvsc_drv.c b/drivers/staging/hv/blkvsc_drv.c index 55088b772375..797bcdbd2a51 100644 --- a/drivers/staging/hv/blkvsc_drv.c +++ b/drivers/staging/hv/blkvsc_drv.c @@ -106,6 +106,7 @@ struct block_device_context { int users; }; +static DEFINE_MUTEX(blkvsc_mutex); static const char *g_blk_driver_name = "blkvsc"; @@ -251,13 +252,34 @@ static unsigned int blkvsc_check_events(struct gendisk *gd, } +static int blkvsc_open(struct block_device *bdev, fmode_t mode) +{ + struct block_device_context *blkdev = bdev->bd_disk->private_data; + + DPRINT_DBG(BLKVSC_DRV, "- users %d disk %s\n", blkdev->users, + blkdev->gd->disk_name); + + mutex_lock(&blkvsc_mutex); + spin_lock(&blkdev->lock); + + if (!blkdev->users && blkdev->device_type == DVD_TYPE) { + spin_unlock(&blkdev->lock); + check_disk_change(bdev); + spin_lock(&blkdev->lock); + } + + blkdev->users++; + + spin_unlock(&blkdev->lock); + mutex_unlock(&blkvsc_mutex); + return 0; +} + /* Static decl */ -static DEFINE_MUTEX(blkvsc_mutex); static int blkvsc_probe(struct device *dev); static int blkvsc_remove(struct device *device); static void blkvsc_shutdown(struct device *device); -static int blkvsc_open(struct block_device *bdev, fmode_t mode); static int blkvsc_release(struct gendisk *disk, fmode_t mode); static int blkvsc_revalidate_disk(struct gendisk *gd); static int blkvsc_getgeo(struct block_device *bd, struct hd_geometry *hg); @@ -1368,29 +1390,6 @@ static void blkvsc_request(struct request_queue *queue) } } -static int blkvsc_open(struct block_device *bdev, fmode_t mode) -{ - struct block_device_context *blkdev = bdev->bd_disk->private_data; - - DPRINT_DBG(BLKVSC_DRV, "- users %d disk %s\n", blkdev->users, - blkdev->gd->disk_name); - - mutex_lock(&blkvsc_mutex); - spin_lock(&blkdev->lock); - - if (!blkdev->users && blkdev->device_type == DVD_TYPE) { - spin_unlock(&blkdev->lock); - check_disk_change(bdev); - spin_lock(&blkdev->lock); - } - - blkdev->users++; - - spin_unlock(&blkdev->lock); - mutex_unlock(&blkvsc_mutex); - return 0; -} - static int blkvsc_release(struct gendisk *disk, fmode_t mode) { struct block_device_context *blkdev = disk->private_data; |