[PATCH v3 1/2] eventfd: Add scope-based cleanup capability

[Bence Csokas]

Allow eventfd_ctx_put() to be used with the RAII-inspired __free() API.

Signed-off-by: Bence Csokas <bence.csokas@xxxxxxx>
---
 include/linux/eventfd.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/eventfd.h b/include/linux/eventfd.h
index e32bee4345fb..48c40f8c4dfd 100644
--- a/include/linux/eventfd.h
+++ b/include/linux/eventfd.h
@@ -10,6 +10,7 @@
 #define _LINUX_EVENTFD_H
 
 #include <linux/wait.h>
+#include <linux/cleanup.h>
 #include <linux/err.h>
 #include <linux/percpu-defs.h>
 #include <linux/percpu.h>
@@ -89,5 +90,7 @@ static inline void eventfd_signal(struct eventfd_ctx *ctx)
 	eventfd_signal_mask(ctx, 0);
 }
 
+DEFINE_FREE(eventfd, struct eventfd_ctx *, if (!IS_ERR_OR_NULL(_T)) eventfd_ctx_put(_T))
+
 #endif /* _LINUX_EVENTFD_H */
 

-- 
2.56.0