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authorDavid Howells <dhowells@redhat.com>2009-11-19 18:11:08 +0000
committerDavid Howells <dhowells@redhat.com>2009-11-19 18:11:08 +0000
commit52bd75fdb135d6133d878ae60c6e7e3f4ebc1cfc (patch)
tree4fad4fa37ce533c520a4575e5b7df90e19c6a666 /fs/fscache/cookie.c
parent4fbf4291aa15926cd4fdca0ffe9122e89d0459db (diff)
downloadop-kernel-dev-52bd75fdb135d6133d878ae60c6e7e3f4ebc1cfc.zip
op-kernel-dev-52bd75fdb135d6133d878ae60c6e7e3f4ebc1cfc.tar.gz
FS-Cache: Add counters for entry/exit to/from cache operation functions
Count entries to and exits from cache operation table functions. Maintain these as a single counter that's added to or removed from as appropriate. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'fs/fscache/cookie.c')
-rw-r--r--fs/fscache/cookie.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c
index 9b51873..432482e 100644
--- a/fs/fscache/cookie.c
+++ b/fs/fscache/cookie.c
@@ -249,7 +249,9 @@ static int fscache_alloc_object(struct fscache_cache *cache,
/* ask the cache to allocate an object (we may end up with duplicate
* objects at this stage, but we sort that out later) */
+ fscache_stat(&fscache_n_cop_alloc_object);
object = cache->ops->alloc_object(cache, cookie);
+ fscache_stat_d(&fscache_n_cop_alloc_object);
if (IS_ERR(object)) {
fscache_stat(&fscache_n_object_no_alloc);
ret = PTR_ERR(object);
@@ -270,8 +272,11 @@ static int fscache_alloc_object(struct fscache_cache *cache,
/* only attach if we managed to allocate all we needed, otherwise
* discard the object we just allocated and instead use the one
* attached to the cookie */
- if (fscache_attach_object(cookie, object) < 0)
+ if (fscache_attach_object(cookie, object) < 0) {
+ fscache_stat(&fscache_n_cop_put_object);
cache->ops->put_object(object);
+ fscache_stat_d(&fscache_n_cop_put_object);
+ }
_leave(" = 0");
return 0;
@@ -287,7 +292,9 @@ object_already_extant:
return 0;
error_put:
+ fscache_stat(&fscache_n_cop_put_object);
cache->ops->put_object(object);
+ fscache_stat_d(&fscache_n_cop_put_object);
error:
_leave(" = %d", ret);
return ret;
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