commit 35fffab077ead921e79ba44e70e02f776ac4e4b0
author Daniel Rosenberg <drosen@google.com> Wed Oct 26 16:27:45 2016 -0700
committer Amit Pundir <amit.pundir@linaro.org> Mon Dec 05 13:02:41 2016 +0530
tree 9a36af1740b891b18c61e4edfebc0229bfb2aeb3
parent 4929dfd173409e4b92fadbcf8c69c747a9c655ce

vfs: Add permission2 for filesystems with per mount permissions

This allows filesystems to use their mount private data to
influence the permssions they return in permission2. It has
been separated into a new call to avoid disrupting current
permission users.

Change-Id: I9d416e3b8b6eca84ef3e336bd2af89ddd51df6ca
Signed-off-by: Daniel Rosenberg <drosen@google.com>

fs/exec.c

diff --git a/fs/exec.c b/fs/exec.c
index b7a5f46..b079500 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1092,7 +1092,7 @@
 
 void would_dump(struct linux_binprm *bprm, struct file *file)
 {
-	if (inode_permission(file_inode(file), MAY_READ) < 0)
+	if (inode_permission2(file->f_path.mnt, file_inode(file), MAY_READ) < 0)
 		bprm->interp_flags |= BINPRM_FLAGS_ENFORCE_NONDUMP;
 }
 EXPORT_SYMBOL(would_dump);