diff mbox series

[RFC,28/76] fscache, cachefiles: Fix disabled histogram warnings

Message ID 160588491489.3465195.3904823431891430888.stgit@warthog.procyon.org.uk
State New
Headers show
Series fscache: Modernisation | expand

Commit Message

David Howells Nov. 20, 2020, 3:08 p.m. UTC 
Fix variable unused warnings due to disabled histogram stuff.

Signed-off-by: David Howells <dhowells@redhat.com>
---

 fs/cachefiles/internal.h |    7 +++++--
 fs/fscache/internal.h    |    6 ++++--
 2 files changed, 9 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
index b89f76a03546..16d15291a629 100644
--- a/fs/cachefiles/internal.h
+++ b/fs/cachefiles/internal.h
@@ -143,11 +143,11 @@  extern int cachefiles_check_in_use(struct cachefiles_cache *cache,
 /*
  * proc.c
  */
-#ifdef CONFIG_CACHEFILES_HISTOGRAM
 extern atomic_t cachefiles_lookup_histogram[HZ];
 extern atomic_t cachefiles_mkdir_histogram[HZ];
 extern atomic_t cachefiles_create_histogram[HZ];
 
+#ifdef CONFIG_CACHEFILES_HISTOGRAM
 extern int __init cachefiles_proc_init(void);
 extern void cachefiles_proc_cleanup(void);
 static inline
@@ -162,7 +162,10 @@  void cachefiles_hist(atomic_t histogram[], unsigned long start_jif)
 #else
 #define cachefiles_proc_init()		(0)
 #define cachefiles_proc_cleanup()	do {} while (0)
-#define cachefiles_hist(hist, start_jif) do {} while (0)
+static inline
+void cachefiles_hist(atomic_t histogram[], unsigned long start_jif)
+{
+}
 #endif
 
 /*
diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h
index 6c2a6ebe4f02..2c1f4151c092 100644
--- a/fs/fscache/internal.h
+++ b/fs/fscache/internal.h
@@ -109,13 +109,13 @@  extern struct fscache_cookie fscache_fsdef_index;
 /*
  * histogram.c
  */
-#ifdef CONFIG_FSCACHE_HISTOGRAM
 extern atomic_t fscache_obj_instantiate_histogram[HZ];
 extern atomic_t fscache_objs_histogram[HZ];
 extern atomic_t fscache_ops_histogram[HZ];
 extern atomic_t fscache_retrieval_delay_histogram[HZ];
 extern atomic_t fscache_retrieval_histogram[HZ];
 
+#ifdef CONFIG_FSCACHE_HISTOGRAM
 static inline void fscache_hist(atomic_t histogram[], unsigned long start_jif)
 {
 	unsigned long jif = jiffies - start_jif;
@@ -127,7 +127,9 @@  static inline void fscache_hist(atomic_t histogram[], unsigned long start_jif)
 extern const struct seq_operations fscache_histogram_ops;
 
 #else
-#define fscache_hist(hist, start_jif) do {} while (0)
+static inline void fscache_hist(atomic_t histogram[], unsigned long start_jif)
+{
+}
 #endif
 
 /*