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Diffstat (limited to 'include/linux/fscache-cache.h')
-rw-r--r--include/linux/fscache-cache.h19
1 files changed, 17 insertions, 2 deletions
diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
index 7823e9ef995e..96a2b66f5968 100644
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -511,6 +511,11 @@ static inline void fscache_end_io(struct fscache_retrieval *op,
op->end_io_func(page, op->context, error);
}
+static inline void __fscache_use_cookie(struct fscache_cookie *cookie)
+{
+ atomic_inc(&cookie->n_active);
+}
+
/**
* fscache_use_cookie - Request usage of cookie attached to an object
* @object: Object description
@@ -524,6 +529,16 @@ static inline bool fscache_use_cookie(struct fscache_object *object)
return atomic_inc_not_zero(&cookie->n_active) != 0;
}
+static inline bool __fscache_unuse_cookie(struct fscache_cookie *cookie)
+{
+ return atomic_dec_and_test(&cookie->n_active);
+}
+
+static inline void __fscache_wake_unused_cookie(struct fscache_cookie *cookie)
+{
+ wake_up_atomic_t(&cookie->n_active);
+}
+
/**
* fscache_unuse_cookie - Cease usage of cookie attached to an object
* @object: Object description
@@ -534,8 +549,8 @@ static inline bool fscache_use_cookie(struct fscache_object *object)
static inline void fscache_unuse_cookie(struct fscache_object *object)
{
struct fscache_cookie *cookie = object->cookie;
- if (atomic_dec_and_test(&cookie->n_active))
- wake_up_atomic_t(&cookie->n_active);
+ if (__fscache_unuse_cookie(cookie))
+ __fscache_wake_unused_cookie(cookie);
}
/*