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| author | Stefan Behrens <sbehrens@giantdisaster.de> | 2013-05-16 14:48:19 +0000 |
|---|---|---|
| committer | Josef Bacik <jbacik@fusionio.com> | 2013-05-17 21:40:36 -0400 |
| commit | 3a6cad9009c85e29e83aafc8ac00b1dd5067fc5f (patch) | |
| tree | 6f833c82426261bcc7588e048c1f2e00a878446d /fs/btrfs | |
| parent | 17a5adccf3fd01added91f3bf9aa7ee9aa28843b (diff) | |
| download | lwn-3a6cad9009c85e29e83aafc8ac00b1dd5067fc5f.tar.gz lwn-3a6cad9009c85e29e83aafc8ac00b1dd5067fc5f.zip | |
Btrfs: explicitly use global_block_rsv for quota_tree
The quota_tree was set up to use the empty_block_rsv before
which would be problematic when the filesystem is filled up
and ENOSPC happens during internal operations while the quota
tree is updated and COWed (when the btrfs_qgroup_info_item
items) are written. In fact, use_block_rsv() which is used
in btrfs_cow_block() falls back to the global_block_rsv in
this case. But just in order to make it more clear what is
happening, change it to explicitly use the global_block_rsv.
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 42f5e6196021..df472ab1b5ac 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -4564,6 +4564,8 @@ static void init_global_block_rsv(struct btrfs_fs_info *fs_info) fs_info->csum_root->block_rsv = &fs_info->global_block_rsv; fs_info->dev_root->block_rsv = &fs_info->global_block_rsv; fs_info->tree_root->block_rsv = &fs_info->global_block_rsv; + if (fs_info->quota_root) + fs_info->quota_root->block_rsv = &fs_info->global_block_rsv; fs_info->chunk_root->block_rsv = &fs_info->chunk_block_rsv; update_global_block_rsv(fs_info); |