diff options
| author | David Howells <dhowells@redhat.com> | 2009-04-03 19:42:37 +0400 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2009-04-03 19:42:37 +0400 |
| commit | 7394daa8c61dfda4baa687f133748fa0b599b017 (patch) | |
| tree | 32d2c55ed60596918ec62ce6ecca186337bf4660 /fs/fscache/main.c | |
| parent | 06b3db1b9bccdc8c2c743122a89745279e5ecc46 (diff) | |
| download | linux-7394daa8c61dfda4baa687f133748fa0b599b017.tar.xz | |
FS-Cache: Add use of /proc and presentation of statistics
Make FS-Cache create its /proc interface and present various statistical
information through it. Also provide the functions for updating this
information.
These features are enabled by:
CONFIG_FSCACHE_PROC
CONFIG_FSCACHE_STATS
CONFIG_FSCACHE_HISTOGRAM
The /proc directory for FS-Cache is also exported so that caching modules can
add their own statistics there too.
The FS-Cache module is loadable at this point, and the statistics files can be
examined by userspace:
cat /proc/fs/fscache/stats
cat /proc/fs/fscache/histogram
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Steve Dickson <steved@redhat.com>
Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
Diffstat (limited to 'fs/fscache/main.c')
| -rw-r--r-- | fs/fscache/main.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/fscache/main.c b/fs/fscache/main.c index 76f7c69079c0..7c734b7fb18e 100644 --- a/fs/fscache/main.c +++ b/fs/fscache/main.c @@ -52,9 +52,15 @@ static int __init fscache_init(void) if (ret < 0) goto error_slow_work; + ret = fscache_proc_init(); + if (ret < 0) + goto error_proc; + printk(KERN_NOTICE "FS-Cache: Loaded\n"); return 0; +error_proc: + slow_work_unregister_user(); error_slow_work: return ret; } @@ -68,6 +74,7 @@ static void __exit fscache_exit(void) { _enter(""); + fscache_proc_cleanup(); slow_work_unregister_user(); printk(KERN_NOTICE "FS-Cache: Unloaded\n"); } |