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| author | Liu Bo <bo.li.liu@oracle.com> | 2014-01-09 07:57:06 +0100 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2014-01-28 22:20:29 +0100 |
| commit | de6e8200669f9b60694ca87eadf0a0a99cbdb6aa (patch) | |
| tree | 6ba34667019a48ec0b042d6b4cf0653f3a2518c3 /fs/btrfs/ioctl.c | |
| parent | Btrfs: fix the race between write back and nocow buffered write (diff) | |
| download | linux-de6e8200669f9b60694ca87eadf0a0a99cbdb6aa.tar.xz linux-de6e8200669f9b60694ca87eadf0a0a99cbdb6aa.zip | |
Btrfs: release subvolume's block_rsv before transaction commit
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@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/ioctl.c')
| -rw-r--r-- | fs/btrfs/ioctl.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 3970f32b2b80..332b624e25db 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -436,7 +436,9 @@ 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; @@ -561,6 +563,8 @@ 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); @@ -574,14 +578,10 @@ fail: if (!ret) { inode = btrfs_lookup_dentry(dir, dentry); - if (IS_ERR(inode)) { - ret = PTR_ERR(inode); - goto out; - } + if (IS_ERR(inode)) + return PTR_ERR(inode); d_instantiate(dentry, inode); } -out: - btrfs_subvolume_release_metadata(root, &block_rsv, qgroup_reserved); return ret; } |