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authorDmitry Monakhov <dmonakhov@openvz.org>2013-03-10 21:01:03 -0400
committerTheodore Ts'o <tytso@mit.edu>2013-03-10 21:01:03 -0400
commit921f266bc6bfe6ebb599c559f10443af314c19ec (patch)
tree270647b58f430887b9f510693b73c88a157bdb56 /fs/ext4/extents_status.h
parentbd384364c1185ecb01f3b8242c915ccb5921c60d (diff)
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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.h6
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)