linux-kernel - [PATCH] FS-Cache: make check_consistency callback return int

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Message-Id: <1463741639-5589-1-git-send-email-zyan@redhat.com>
Date:	Fri, 20 May 2016 18:53:59 +0800
From:	"Yan, Zheng" <zyan@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	dhowells@...hat.com, linux-cachefs@...hat.com,
	"Yan, Zheng" <zyan@...hat.com>
Subject: [PATCH] FS-Cache: make check_consistency callback return int

__fscache_check_consistency() calls check_consistency() callback
and return the callback's return value. But the return type of
check_consistency() is bool. So __fscache_check_consistency()
return 1 if the cache is inconsistent. This is inconsistent with
the document.

Signed-off-by: "Yan, Zheng" <zyan@...hat.com>
---
 fs/cachefiles/interface.c     | 2 +-
 include/linux/fscache-cache.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/cachefiles/interface.c b/fs/cachefiles/interface.c
index 861d611..ce5f345 100644
--- a/fs/cachefiles/interface.c
+++ b/fs/cachefiles/interface.c
@@ -380,7 +380,7 @@ static void cachefiles_sync_cache(struct fscache_cache *_cache)
  * check if the backing cache is updated to FS-Cache
  * - called by FS-Cache when evaluates if need to invalidate the cache
  */
-static bool cachefiles_check_consistency(struct fscache_operation *op)
+static int cachefiles_check_consistency(struct fscache_operation *op)
 {
 	struct cachefiles_object *object;
 	struct cachefiles_cache *cache;
diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
index 604e152..13ba552 100644
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -241,7 +241,7 @@ struct fscache_cache_ops {
 
 	/* check the consistency between the backing cache and the FS-Cache
 	 * cookie */
-	bool (*check_consistency)(struct fscache_operation *op);
+	int (*check_consistency)(struct fscache_operation *op);
 
 	/* store the updated auxiliary data on an object */
 	void (*update_object)(struct fscache_object *object);
-- 
2.5.5