btrfs: call bdev_fput() to reclaim the blk_holder immediately

As part of the preparation for btrfs blk_holder_ops, we want to ensure
the holder of a block device has a proper lifespan.

However btrfs is always using fput() to close a block device, which has
one problem:

- fput() is deferred
  Meaning we can have a block device with invalid (aka, freed) holder.

To avoid the problem and align the behavior to other code, just call
bdev_fput() instead.

There is some extra requirement on the locking, but that's all resolved
by previous patches and we should be safe to call bdev_fput().

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index bd2761799181..473450ee0408 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -327,7 +327,7 @@ static int btrfs_init_dev_replace_tgtdev(struct btrfs_fs_info *fs_info,
 	return 0;
 
 error:
-	fput(bdev_file);
+	bdev_fput(bdev_file);
 	return ret;
 }