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| author | Mark Fasheh <mfasheh@suse.com> | 2008-07-30 03:29:18 +0200 |
|---|---|---|
| committer | Mark Fasheh <mfasheh@suse.com> | 2008-10-13 22:57:58 +0200 |
| commit | 9a8ff578fb430a8816dfbc73c77e5e09c6d9c343 (patch) | |
| tree | be97f570b59a4af8fbf0c4c054619193155aaaa6 /fs/ocfs2/ocfs2.h | |
| parent | ocfs2: throttle back local alloc when low on disk space (diff) | |
| download | linux-9a8ff578fb430a8816dfbc73c77e5e09c6d9c343.tar.xz linux-9a8ff578fb430a8816dfbc73c77e5e09c6d9c343.zip | |
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.h | 5 |
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; |