提交 38d9cce3 编写于 作者: J Jan Kara 提交者: Greg Kroah-Hartman

loop: Fold __loop_release into loop_release

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: NJan Kara <jack@suse.cz>
Signed-off-by: NJens Axboe <axboe@kernel.dk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
上级 342b3360
......@@ -1642,12 +1642,15 @@ static int lo_open(struct block_device *bdev, fmode_t mode)
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) {
......@@ -1657,7 +1660,7 @@ static void __lo_release(struct loop_device *lo)
*/
err = loop_clr_fd(lo);
if (!err)
return;
goto unlock_index;
} else if (lo->lo_state == Lo_bound) {
/*
* Otherwise keep thread (if running) and config,
......@@ -1668,12 +1671,7 @@ 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);
}
......
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