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authorGang He <ghe@suse.com>2019-07-11 20:53:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-12 11:05:41 -0700
commit8a7f5f4c26dd4e969b5f3b30d06c54dc6a520eda (patch)
tree0bea969835d37f6427f4e8d09fb5d1693fab8012 /fs/ocfs2/ocfs2.h
parent0e71666b8b9e21e4cb5d805219eb5ed7c5617ca3 (diff)
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ocfs2: add last unlock times in locking_state
ocfs2 file system uses locking_state file under debugfs to dump each ocfs2 file system's dlm lock resources, but the dlm lock resources in memory are becoming more and more after the files were touched by the user. it will become a bit difficult to analyze these dlm lock resource records in locking_state file by the upper scripts, though some files are not active for now, which were accessed long time ago. Then, I'd like to add last pr/ex unlock times in locking_state file for each dlm lock resource record, the the upper scripts can use last unlock time to filter inactive dlm lock resource record. Link: http://lkml.kernel.org/r/20190611015414.27754-1-ghe@suse.com Signed-off-by: Gang He <ghe@suse.com> Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Changwei Ge <gechangwei@live.cn> Cc: Gang He <ghe@suse.com> Cc: Jun Piao <piaojun@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2/ocfs2.h')
-rw-r--r--fs/ocfs2/ocfs2.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index a4647a646f07..5c111eabaa1d 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -150,6 +150,7 @@ struct ocfs2_lock_stats {
/* Storing max wait in usecs saves 24 bytes per inode */
u32 ls_max; /* Max wait in USEC */
+ u64 ls_last; /* Last unlock time in USEC */
};
#endif