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-rw-r--r--fs/eventfd.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/eventfd.c b/fs/eventfd.c
index 3ed4466..08bf558 100644
--- a/fs/eventfd.c
+++ b/fs/eventfd.c
@@ -203,6 +203,10 @@ asmlinkage long sys_eventfd2(unsigned int count, int flags)
int fd;
struct eventfd_ctx *ctx;
+ /* Check the EFD_* constants for consistency. */
+ BUILD_BUG_ON(EFD_CLOEXEC != O_CLOEXEC);
+ BUILD_BUG_ON(EFD_NONBLOCK != O_NONBLOCK);
+
if (flags & ~(EFD_CLOEXEC | EFD_NONBLOCK))
return -EINVAL;
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