Merge branch 'vfs-scale-working' of git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin

* 'vfs-scale-working' of git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin: (57 commits)
  fs: scale mntget/mntput
  fs: rename vfsmount counter helpers
  fs: implement faster dentry memcmp
  fs: prefetch inode data in dcache lookup
  fs: improve scalability of pseudo filesystems
  fs: dcache per-inode inode alias locking
  fs: dcache per-bucket dcache hash locking
  bit_spinlock: add required includes
  kernel: add bl_list
  xfs: provide simple rcu-walk ACL implementation
  btrfs: provide simple rcu-walk ACL implementation
  ext2,3,4: provide simple rcu-walk ACL implementation
  fs: provide simple rcu-walk generic_check_acl implementation
  fs: provide rcu-walk aware permission i_ops
  fs: rcu-walk aware d_revalidate method
  fs: cache optimise dentry and inode for rcu-walk
  fs: dcache reduce branches in lookup path
  fs: dcache remove d_mounted
  fs: fs_struct use seqlock
  fs: rcu-walk for path lookup
  ...

1 files changed, 9 insertions, 0 deletions

diff --git a/security/security.c b/security/security.c
index e5fb07a3052d..739e40362f44 100644
--- a/security/security.c
+++ b/security/security.c
@@ -513,6 +513,15 @@ int security_inode_permission(struct inode *inode, int mask)
         return security_ops->inode_permission(inode, mask);
 }
 
+int security_inode_exec_permission(struct inode *inode, unsigned int flags)
+{
+        if (unlikely(IS_PRIVATE(inode)))
+                return 0;
+        if (flags)
+                return -ECHILD;
+        return security_ops->inode_permission(inode, MAY_EXEC);
+}
+
 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
 {
         if (unlikely(IS_PRIVATE(dentry->d_inode)))