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authorMark Fasheh <mfasheh@suse.com>2008-07-29 18:29:18 -0700
committerMark Fasheh <mfasheh@suse.com>2008-10-13 13:57:58 -0700
commit9a8ff578fb430a8816dfbc73c77e5e09c6d9c343 (patch)
treebe97f570b59a4af8fbf0c4c054619193155aaaa6 /fs/ocfs2/ocfs2.h
parent9c7af40b210e87f8fddd97b0badc0a352862234a (diff)
ocfs2: track local alloc state via debugfs
A per-mount debugfs file, "local_alloc" is created which when read will expose live state of the nodes local alloc file. Performance impact is minimal, only a bit of memory overhead per mount point. Still, the code is hidden behind CONFIG_OCFS2_FS_STATS. This feature will help us debug local alloc performance problems on a live system. Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/ocfs2.h')
-rw-r--r--fs/ocfs2/ocfs2.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index 4d6e200a4843..128279986d65 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -272,6 +272,11 @@ struct ocfs2_super
u64 la_last_gd;
+#ifdef CONFIG_OCFS2_FS_STATS
+ struct dentry *local_alloc_debug;
+ char *local_alloc_debug_buf;
+#endif
+
/* Next two fields are for local node slot recovery during
* mount. */
int dirty;