From: Daniel Rosenberg <drosen@google.com>
Date: Tue, 14 Mar 2017 22:39:05 +0000 (-0700)
Subject: ANDROID: vfs: user permission2 in notify_change2
X-Git-Tag: release-20171130_firefly~4^2~100^2~196
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=dabcf1d17a04db801ac0d9068b3b20520369b8be;p=firefly-linux-kernel-4.4.55.git

ANDROID: vfs: user permission2 in notify_change2

This allows filesystems to use their mount private data to
influence the permissions they use when attempting to touch.

Signed-off-by: Daniel Rosenberg <drosen@google.com>
Bug: 36228261
Change-Id: I1052319ba1c3ce5d5e586aa7f8a80c08851a5c7f
---

diff --git a/fs/attr.c b/fs/attr.c
index 11be2265a2d5..c86b37c38fb7 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -211,7 +211,7 @@ int notify_change2(struct vfsmount *mnt, struct dentry * dentry, struct iattr *
 			return -EPERM;
 
 		if (!inode_owner_or_capable(inode)) {
-			error = inode_permission(inode, MAY_WRITE);
+			error = inode_permission2(mnt, inode, MAY_WRITE);
 			if (error)
 				return error;
 		}