jfs: cache NULL when both default_acl and acl are NULL

default_acl and acl of newly created inode will be initiated
as ACL_NOT_CACHED in vfs function inode_init_always() and later
will be updated by calling xxx_init_acl() in specific filesystems.
Howerver, when default_acl and acl are NULL then they keep the value
of ACL_NOT_CACHED, this patch tries to cache NULL for acl/default_acl
in this case.

Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c
index 2e71b6e7e646..8c06a6ea862d 100644
--- a/fs/jfs/acl.c
+++ b/fs/jfs/acl.c
@@ -146,12 +146,16 @@ int jfs_init_acl(tid_t tid, struct inode *inode, struct inode *dir)
         if (default_acl) {
                 rc = __jfs_set_acl(tid, inode, ACL_TYPE_DEFAULT, default_acl);
                 posix_acl_release(default_acl);
+        } else {
+                inode->i_default_acl = NULL;
         }
 
         if (acl) {
                 if (!rc)
                         rc = __jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, acl);
                 posix_acl_release(acl);
+        } else {
+                inode->i_acl = NULL;
         }
 
         JFS_IP(inode)->mode2 = (JFS_IP(inode)->mode2 & 0xffff0000) |