From: Ulrich Drepper <drepper@redhat.com>
Date: Sat, 3 May 2008 19:28:45 +0000 (-0400)
Subject: tiny mq_open optimization
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=269f21344b23e552c21c9e2d7ca258479dcd7a0a;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

tiny mq_open optimization

A very small cleanup for mq_open.

We do not have to call set_close_on_exit if we create the file
descriptor right away with the flag set.  We have a function for this
now.  The resulting code is smaller and a tiny bit faster.

Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 94fd3b08fb77..b3b69fd51330 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -673,7 +673,7 @@ asmlinkage long sys_mq_open(const char __user *u_name, int oflag, mode_t mode,
 	if (IS_ERR(name = getname(u_name)))
 		return PTR_ERR(name);
 
-	fd = get_unused_fd();
+	fd = get_unused_fd_flags(O_CLOEXEC);
 	if (fd < 0)
 		goto out_putname;
 
@@ -709,7 +709,6 @@ asmlinkage long sys_mq_open(const char __user *u_name, int oflag, mode_t mode,
 		goto out_putfd;
 	}
 
-	set_close_on_exec(fd, 1);
 	fd_install(fd, filp);
 	goto out_upsem;