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| author | Dmitry Monakhov <dmonakhov@openvz.org> | 2013-03-11 05:01:03 +0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-03-11 05:01:03 +0400 |
| commit | 921f266bc6bfe6ebb599c559f10443af314c19ec (patch) | |
| tree | 270647b58f430887b9f510693b73c88a157bdb56 /fs/ext4/extents_status.h | |
| parent | bd384364c1185ecb01f3b8242c915ccb5921c60d (diff) | |
| download | linux-921f266bc6bfe6ebb599c559f10443af314c19ec.tar.xz | |
ext4: add self-testing infrastructure to do a sanity check
This commit adds a self-testing infrastructure like extent tree does to
do a sanity check for extent status tree. After status tree is as a
extent cache, we'd better to make sure that it caches right result.
After applied this commit, we will get a lot of messages when we run
xfstests as below.
...
kernel: ES len assertation failed for inode: 230 retval 1 != map->m_len
3 in ext4_map_blocks (allocation)
...
kernel: ES cache assertation failed for inode: 230 es_cached ex
[974/2/4781/20] != found ex [974/1/4781/1000]
...
kernel: ES insert assertation failed for inode: 635 ex_status
[0/45/21388/w] != es_status [44/1/21432/u]
...
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/extents_status.h')
| -rw-r--r-- | fs/ext4/extents_status.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h index f190dfe969da..56140ad4150b 100644 --- a/fs/ext4/extents_status.h +++ b/fs/ext4/extents_status.h @@ -21,6 +21,12 @@ #endif /* + * With ES_AGGRESSIVE_TEST defined, the result of es caching will be + * checked with old map_block's result. + */ +#define ES_AGGRESSIVE_TEST__ + +/* * These flags live in the high bits of extent_status.es_pblk */ #define EXTENT_STATUS_WRITTEN (1ULL << 63) |