X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2Feventfd.c;h=08bf558d04080ffe0a3ced77a5660d4af4e1182f;hb=30a2f3c60a84092c8084dfe788b710f8d0768cd4;hp=bd420e6478add9dbe241816cc5dbb8b8045a5052;hpb=b087498eb5605673b0f260a7620d91818cd72304;p=linux-2.6

diff --git a/fs/eventfd.c b/fs/eventfd.c
index bd420e6478..08bf558d04 100644
--- a/fs/eventfd.c
+++ b/fs/eventfd.c
@@ -203,7 +203,11 @@ asmlinkage long sys_eventfd2(unsigned int count, int flags)
 	int fd;
 	struct eventfd_ctx *ctx;
 
-	if (flags & ~EFD_CLOEXEC)
+	/* 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;
 
 	ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
@@ -218,7 +222,7 @@ asmlinkage long sys_eventfd2(unsigned int count, int flags)
 	 * anon_inode_getfd() will install the fd.
 	 */
 	fd = anon_inode_getfd("[eventfd]", &eventfd_fops, ctx,
-			      flags & O_CLOEXEC);
+			      flags & (O_CLOEXEC | O_NONBLOCK));
 	if (fd < 0)
 		kfree(ctx);
 	return fd;