Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp

Conflicts:
	litmus/sched_cedf.c

1 files changed, 20 insertions, 0 deletions

diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h
index 67608161df6b..54211c1cd926 100644
--- a/include/linux/posix_acl.h
+++ b/include/linux/posix_acl.h
@@ -71,6 +71,7 @@ posix_acl_release(struct posix_acl *acl)
 
 /* posix_acl.c */
 
+extern void posix_acl_init(struct posix_acl *, int);
 extern struct posix_acl *posix_acl_alloc(int, gfp_t);
 extern struct posix_acl *posix_acl_clone(const struct posix_acl *, gfp_t);
 extern int posix_acl_valid(const struct posix_acl *);
@@ -108,6 +109,25 @@ static inline struct posix_acl *get_cached_acl(struct inode *inode, int type)
         return acl;
 }
 
+static inline int negative_cached_acl(struct inode *inode, int type)
+{
+        struct posix_acl **p, *acl;
+        switch (type) {
+        case ACL_TYPE_ACCESS:
+                p = &inode->i_acl;
+                break;
+        case ACL_TYPE_DEFAULT:
+                p = &inode->i_default_acl;
+                break;
+        default:
+                BUG();
+        }
+        acl = ACCESS_ONCE(*p);
+        if (acl)
+                return 0;
+        return 1;
+}
+
 static inline void set_cached_acl(struct inode *inode,
                                   int type,
                                   struct posix_acl *acl)