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| author | Wang Shilong <wangsl-fnst@cn.fujitsu.com> | 2013-03-01 12:33:01 +0100 |
|---|---|---|
| committer | Josef Bacik <jbacik@fusionio.com> | 2013-03-01 16:13:04 +0100 |
| commit | a9870c0e031527fbfa382019f30d2e9b98124a0d (patch) | |
| tree | 5c59752af695a18db6b8c421199424423364b73b /fs | |
| parent | Btrfs: remove reduplicate check about root in the function btrfs_clean_quota_... (diff) | |
| download | linux-a9870c0e031527fbfa382019f30d2e9b98124a0d.tar.xz linux-a9870c0e031527fbfa382019f30d2e9b98124a0d.zip | |
Btrfs: don't call btrfs_qgroup_free if just btrfs_qgroup_reserve fails
commit eb6b88d92c6df083dd09a8c471011e3788dfd7c6 leads into another bug.
If it is just because qgroup_reserve fails, the function btrfs_qgroup_free
should not be called, otherwise, it will cause the wrong quota accounting.
Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 7cb9d734f6e5..075854e7a044 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -4772,9 +4772,14 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes) * ret != 0 here means the qgroup reservation failed, we go straight to * the shared error handling then. */ - if (ret == 0) + if (ret == 0) { ret = reserve_metadata_bytes(root, block_rsv, to_reserve, flush); + if (ret && root->fs_info->quota_enabled) { + btrfs_qgroup_free(root, num_bytes + + nr_extents * root->leafsize); + } + } if (ret) { u64 to_free = 0; @@ -4805,10 +4810,6 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes) btrfs_ino(inode), to_free, 0); } - if (root->fs_info->quota_enabled) { - btrfs_qgroup_free(root, num_bytes + - nr_extents * root->leafsize); - } if (delalloc_lock) mutex_unlock(&BTRFS_I(inode)->delalloc_mutex); return ret; |