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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-05-24 09:06:26 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-05-24 09:06:26 +0200 |
| commit | b73077eb03f510a84b102fb97640e595a958403c (patch) | |
| tree | 8b639000418e2756bf6baece4e00e07d2534bccc /drivers/block/loop.c | |
| parent | Input: ads7846 - remove unused variable from struct ads7845_ser_req (diff) | |
| parent | Input: ADP5589 - new driver for I2C Keypad Decoder and I/O Expander (diff) | |
| download | linux-b73077eb03f510a84b102fb97640e595a958403c.tar.xz linux-b73077eb03f510a84b102fb97640e595a958403c.zip | |
Merge branch 'next' into for-linus
Diffstat (limited to '')
| -rw-r--r-- | drivers/block/loop.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 44e18c073c44..a076a14ca72d 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -78,7 +78,6 @@ #include <asm/uaccess.h> -static DEFINE_MUTEX(loop_mutex); static LIST_HEAD(loop_devices); static DEFINE_MUTEX(loop_devices_mutex); @@ -541,17 +540,6 @@ out: return 0; } -/* - * kick off io on the underlying address space - */ -static void loop_unplug(struct request_queue *q) -{ - struct loop_device *lo = q->queuedata; - - queue_flag_clear_unlocked(QUEUE_FLAG_PLUGGED, q); - blk_run_address_space(lo->lo_backing_file->f_mapping); -} - struct switch_request { struct file *file; struct completion wait; @@ -918,7 +906,6 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode, */ blk_queue_make_request(lo->lo_queue, loop_make_request); lo->lo_queue->queuedata = lo; - lo->lo_queue->unplug_fn = loop_unplug; if (!(lo_flags & LO_FLAGS_READ_ONLY) && file->f_op->fsync) blk_queue_flush(lo->lo_queue, REQ_FLUSH); @@ -1020,7 +1007,6 @@ static int loop_clr_fd(struct loop_device *lo, struct block_device *bdev) kthread_stop(lo->lo_thread); - lo->lo_queue->unplug_fn = NULL; lo->lo_backing_file = NULL; loop_release_xfer(lo); @@ -1501,11 +1487,9 @@ static int lo_open(struct block_device *bdev, fmode_t mode) { struct loop_device *lo = bdev->bd_disk->private_data; - mutex_lock(&loop_mutex); mutex_lock(&lo->lo_ctl_mutex); lo->lo_refcnt++; mutex_unlock(&lo->lo_ctl_mutex); - mutex_unlock(&loop_mutex); return 0; } @@ -1515,7 +1499,6 @@ static int lo_release(struct gendisk *disk, fmode_t mode) struct loop_device *lo = disk->private_data; int err; - mutex_lock(&loop_mutex); mutex_lock(&lo->lo_ctl_mutex); if (--lo->lo_refcnt) @@ -1540,7 +1523,6 @@ static int lo_release(struct gendisk *disk, fmode_t mode) out: mutex_unlock(&lo->lo_ctl_mutex); out_unlocked: - mutex_unlock(&loop_mutex); return 0; } |