From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 19 Jun 2011 00:21:44 +0000 (-0400)
Subject: nilfs2_permission() doesn't need to bail out in RCU mode
X-Git-Tag: v3.12-rc1~5540^2~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=730e908f3539066d4aa01f4720ebfc750ce4d045;p=kernel%2Fkernel-generic.git

nilfs2_permission() doesn't need to bail out in RCU mode

Nothing blocking except for generic_permission().  Which will DTRT.

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

diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index b954878..b9b45fc 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -801,12 +801,7 @@ out_err:
 
 int nilfs_permission(struct inode *inode, int mask, unsigned int flags)
 {
-	struct nilfs_root *root;
-
-	if (flags & IPERM_FLAG_RCU)
-		return -ECHILD;
-
-	root = NILFS_I(inode)->i_root;
+	struct nilfs_root *root = NILFS_I(inode)->i_root;
 	if ((mask & MAY_WRITE) && root &&
 	    root->cno != NILFS_CPTREE_CURRENT_CNO)
 		return -EROFS; /* snapshot is not writable */