From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 19 Jun 2011 00:35:23 +0000 (-0400)
Subject: proc_fd_permission() is doesn't need to bail out in RCU mode
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=cf1279111686d9742cbc4145bc9d526c83f59fea;p=linux-beck.git

proc_fd_permission() is doesn't need to bail out in RCU mode

nothing blocking except generic_permission()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/proc/base.c b/fs/proc/base.c
index 14def991d9dd..8a84210ca080 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2169,11 +2169,7 @@ static const struct file_operations proc_fd_operations = {
  */
 static int proc_fd_permission(struct inode *inode, int mask, unsigned int flags)
 {
-	int rv;
-
-	if (flags & IPERM_FLAG_RCU)
-		return -ECHILD;
-	rv = generic_permission(inode, mask, flags, NULL);
+	int rv = generic_permission(inode, mask, flags, NULL);
 	if (rv == 0)
 		return 0;
 	if (task_pid(current) == proc_pid(inode))