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authorDongsheng Yang <yangds.fnst@cn.fujitsu.com>2014-12-12 16:44:34 +0800
committerChris Mason <clm@fb.com>2015-04-13 07:52:46 -0700
commit804ca127fb93988c6a9d5f2bf4a8f1a780c9a2d0 (patch)
treeef99ed7680b2e4c47e4ae0687cc4fc6779e9c105 /fs/btrfs
parent4087cf24ae2af17f7dd9fd34e22fde816952d421 (diff)
downloadop-kernel-dev-804ca127fb93988c6a9d5f2bf4a8f1a780c9a2d0.zip
op-kernel-dev-804ca127fb93988c6a9d5f2bf4a8f1a780c9a2d0.tar.gz
Btrfs: qgroup: free reserved in exceeding quota.
When we exceed quota limit in writing, we will free some reserved extent when we need to drop but not free account in qgroup. It means, each time we exceed quota in writing, there will be some remain space in qg->reserved we can not use any more. If things go on like this, the all space will be ate up. Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com> Reviewed-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/extent-tree.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 2713dcb..695d511 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -5475,8 +5475,11 @@ out_fail:
to_free = 0;
}
spin_unlock(&BTRFS_I(inode)->lock);
- if (dropped)
+ if (dropped) {
+ if (root->fs_info->quota_enabled)
+ btrfs_qgroup_free(root, dropped * root->nodesize);
to_free += btrfs_calc_trans_metadata_size(root, dropped);
+ }
if (to_free) {
btrfs_block_rsv_release(root, block_rsv, to_free);
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