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authorliubo <liubo2009@cn.fujitsu.com>2011-03-07 02:13:14 +0000
committerroot <Chris Mason chris.mason@oracle.com>2011-03-28 05:37:53 -0400
commitc59021f846881a957ac5afe456d0f59d6a517b61 (patch)
tree63e0552f2850b55dcc6bde31e0610e5f22046675 /fs/btrfs/ctree.h
parent9f7c43c96727a53bea45f7f2549d897f0a6117b8 (diff)
Btrfs: fix OOPS of empty filesystem after balance
btrfs will remove unused block groups after balance. When a empty filesystem is balanced, the block group with tag "DATA" may be dropped, and after umount and mount again, it will not find "DATA" space_info and lead to OOPS. So we initial the necessary space_infos(DATA, SYSTEM, METADATA) to avoid OOPS. Reported-by: Daniel J Blueman <daniel.blueman@gmail.com> Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
-rw-r--r--fs/btrfs/ctree.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 93a0191aded6..d47ce8307854 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2234,6 +2234,7 @@ int btrfs_force_chunk_alloc(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 type);
int btrfs_trim_fs(struct btrfs_root *root, struct fstrim_range *range);
+int btrfs_init_space_info(struct btrfs_fs_info *fs_info);
/* ctree.c */
int btrfs_bin_search(struct extent_buffer *eb, struct btrfs_key *key,
int level, int *slot);