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authorDavid Howells <dhowells@redhat.com>2009-11-19 21:11:08 +0300
committerDavid Howells <dhowells@redhat.com>2009-11-19 21:11:08 +0300
commit52bd75fdb135d6133d878ae60c6e7e3f4ebc1cfc (patch)
tree4fad4fa37ce533c520a4575e5b7df90e19c6a666 /fs/fscache/cache.c
parent4fbf4291aa15926cd4fdca0ffe9122e89d0459db (diff)
downloadlinux-52bd75fdb135d6133d878ae60c6e7e3f4ebc1cfc.tar.xz
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/cache.c')
-rw-r--r--fs/fscache/cache.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/fscache/cache.c b/fs/fscache/cache.c
index 724384ef96de..6a3c48abd677 100644
--- a/fs/fscache/cache.c
+++ b/fs/fscache/cache.c
@@ -381,11 +381,15 @@ void fscache_withdraw_cache(struct fscache_cache *cache)
/* make sure all pages pinned by operations on behalf of the netfs are
* written to disk */
+ fscache_stat(&fscache_n_cop_sync_cache);
cache->ops->sync_cache(cache);
+ fscache_stat_d(&fscache_n_cop_sync_cache);
/* dissociate all the netfs pages backed by this cache from the block
* mappings in the cache */
+ fscache_stat(&fscache_n_cop_dissociate_pages);
cache->ops->dissociate_pages(cache);
+ fscache_stat_d(&fscache_n_cop_dissociate_pages);
/* we now have to destroy all the active objects pertaining to this
* cache - which we do by passing them off to thread pool to be