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authorLiu Bo2014-01-09 14:57:06 +0800
committerChris Mason2014-01-28 13:20:29 -0800
commitde6e8200669f9b60694ca87eadf0a0a99cbdb6aa (patch)
tree6ba34667019a48ec0b042d6b4cf0653f3a2518c3 /fs
parentf1de968376340c97ac2d7acd25fa3107c398e0e5 (diff)
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')
-rw-r--r--fs/btrfs/ioctl.c14
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;
}