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-rw-r--r--fs/eventfd.c21
-rw-r--r--include/linux/eventfd.h2
2 files changed, 7 insertions, 16 deletions
diff --git a/fs/eventfd.c b/fs/eventfd.c
index 6138d2b5cdeb..bc0105ae253f 100644
--- a/fs/eventfd.c
+++ b/fs/eventfd.c
@@ -80,24 +80,11 @@ static void eventfd_free(struct kref *kref)
}
/**
- * eventfd_ctx_get - Acquires a reference to the internal eventfd context.
- * @ctx: [in] Pointer to the eventfd context.
- *
- * Returns: In case of success, returns a pointer to the eventfd context.
- */
-struct eventfd_ctx *eventfd_ctx_get(struct eventfd_ctx *ctx)
-{
- kref_get(&ctx->kref);
- return ctx;
-}
-EXPORT_SYMBOL_GPL(eventfd_ctx_get);
-
-/**
* eventfd_ctx_put - Releases a reference to the internal eventfd context.
* @ctx: [in] Pointer to eventfd context.
*
* The eventfd context reference must have been previously acquired either
- * with eventfd_ctx_get() or eventfd_ctx_fdget().
+ * with eventfd_ctx_fdget() or eventfd_ctx_fileget().
*/
void eventfd_ctx_put(struct eventfd_ctx *ctx)
{
@@ -382,10 +369,14 @@ EXPORT_SYMBOL_GPL(eventfd_ctx_fdget);
*/
struct eventfd_ctx *eventfd_ctx_fileget(struct file *file)
{
+ struct eventfd_ctx *ctx;
+
if (file->f_op != &eventfd_fops)
return ERR_PTR(-EINVAL);
- return eventfd_ctx_get(file->private_data);
+ ctx = file->private_data;
+ kref_get(&ctx->kref);
+ return ctx;
}
EXPORT_SYMBOL_GPL(eventfd_ctx_fileget);
diff --git a/include/linux/eventfd.h b/include/linux/eventfd.h
index 566fef14d0a6..7094718b653b 100644
--- a/include/linux/eventfd.h
+++ b/include/linux/eventfd.h
@@ -26,11 +26,11 @@
#define EFD_SHARED_FCNTL_FLAGS (O_CLOEXEC | O_NONBLOCK)
#define EFD_FLAGS_SET (EFD_SHARED_FCNTL_FLAGS | EFD_SEMAPHORE)
+struct eventfd_ctx;
struct file;
#ifdef CONFIG_EVENTFD
-struct eventfd_ctx *eventfd_ctx_get(struct eventfd_ctx *ctx);
void eventfd_ctx_put(struct eventfd_ctx *ctx);
struct file *eventfd_fget(int fd);
struct eventfd_ctx *eventfd_ctx_fdget(int fd);