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loop: Fold __loop_release into loop_release

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commit 967d1dc144b50ad005e5eecdfadfbcfb399ffff6 upstream.

__loop_release() has a single call site. Fold it there. This is
currently not a huge win but it will make following replacement of
loop_index_mutex more obvious.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jan Kara 2018-11-08 14:01:03 +01:00 committed by Greg Kroah-Hartman
parent b3f3107fbd
commit 4ee414c3b6
1 changed files with 7 additions and 9 deletions
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16
drivers/block/loop.c
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@ -1586,12 +1586,15 @@ out:
return err;
}
static void __lo_release(struct loop_device *lo)
static void lo_release(struct gendisk *disk, fmode_t mode)
{
struct loop_device *lo;
int err;
mutex_lock(&loop_index_mutex);
lo = disk->private_data;
if (atomic_dec_return(&lo->lo_refcnt))
return;
goto unlock_index;
mutex_lock(&loop_ctl_mutex);
if (lo->lo_flags & LO_FLAGS_AUTOCLEAR) {
@ -1601,7 +1604,7 @@ static void __lo_release(struct loop_device *lo)
*/
err = loop_clr_fd(lo);
if (!err)
return;
goto unlock_index;
} else {
/*
* Otherwise keep thread (if running) and config,
@ -1611,12 +1614,7 @@ static void __lo_release(struct loop_device *lo)
}
mutex_unlock(&loop_ctl_mutex);
}
static void lo_release(struct gendisk *disk, fmode_t mode)
{
mutex_lock(&loop_index_mutex);
__lo_release(disk->private_data);
unlock_index:
mutex_unlock(&loop_index_mutex);
}