FS-Cache: Add a retirement stat counter
Add a stat counter to count retirement events rather than ordinary release
events (the retire argument to fscache_relinquish_cookie()).
Signed-off-by: David Howells <dhowells@redhat.com>
diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c
index f979659..9905350 100644
--- a/fs/fscache/cookie.c
+++ b/fs/fscache/cookie.c
@@ -415,6 +415,8 @@
unsigned long event;
fscache_stat(&fscache_n_relinquishes);
+ if (retire)
+ fscache_stat(&fscache_n_relinquishes_retire);
if (!cookie) {
fscache_stat(&fscache_n_relinquishes_null);
diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h
index e504651..2bf463d 100644
--- a/fs/fscache/internal.h
+++ b/fs/fscache/internal.h
@@ -202,6 +202,7 @@
extern atomic_t fscache_n_relinquishes;
extern atomic_t fscache_n_relinquishes_null;
extern atomic_t fscache_n_relinquishes_waitcrt;
+extern atomic_t fscache_n_relinquishes_retire;
extern atomic_t fscache_n_cookie_index;
extern atomic_t fscache_n_cookie_data;
diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c
index cda6999..9e15289 100644
--- a/fs/fscache/stats.c
+++ b/fs/fscache/stats.c
@@ -85,6 +85,7 @@
atomic_t fscache_n_relinquishes;
atomic_t fscache_n_relinquishes_null;
atomic_t fscache_n_relinquishes_waitcrt;
+atomic_t fscache_n_relinquishes_retire;
atomic_t fscache_n_cookie_index;
atomic_t fscache_n_cookie_data;
@@ -168,10 +169,11 @@
atomic_read(&fscache_n_updates_null),
atomic_read(&fscache_n_updates_run));
- seq_printf(m, "Relinqs: n=%u nul=%u wcr=%u\n",
+ seq_printf(m, "Relinqs: n=%u nul=%u wcr=%u rtr=%u\n",
atomic_read(&fscache_n_relinquishes),
atomic_read(&fscache_n_relinquishes_null),
- atomic_read(&fscache_n_relinquishes_waitcrt));
+ atomic_read(&fscache_n_relinquishes_waitcrt),
+ atomic_read(&fscache_n_relinquishes_retire));
seq_printf(m, "AttrChg: n=%u ok=%u nbf=%u oom=%u run=%u\n",
atomic_read(&fscache_n_attr_changed),
