We don't have to keep subvolume's block_rsv during transaction commit,
and within transaction commit, we may also need the free space reclaimed
from this block_rsv to process delayed refs.
Signed-off-by: Liu Bo <bo.li.liu@xxxxxxxxxx>
---
fs/btrfs/ioctl.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 21da576..347bf61 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -417,7 +417,8 @@ static noinline int create_subvol(struct inode *dir,
trans = btrfs_start_transaction(root, 0);
if (IS_ERR(trans)) {
ret = PTR_ERR(trans);
- goto out;
+ btrfs_subvolume_release_metadata(root, &block_rsv, qgroup_reserved);
+ return ret;
}
trans->block_rsv = &block_rsv;
trans->bytes_reserved = block_rsv.size;
@@ -542,6 +543,8 @@ static noinline int create_subvol(struct inode *dir,
fail:
trans->block_rsv = NULL;
trans->bytes_reserved = 0;
+ btrfs_subvolume_release_metadata(root, &block_rsv, qgroup_reserved);
+
if (async_transid) {
*async_transid = trans->transid;
err = btrfs_commit_transaction_async(trans, root, 1);
@@ -555,8 +558,6 @@ fail:
if (!ret)
d_instantiate(dentry, btrfs_lookup_dentry(dir, dentry));
-out:
- btrfs_subvolume_release_metadata(root, &block_rsv, qgroup_reserved);
return ret;
}
--
1.8.2.1
--
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