[fs/9p] Initialze cached acls both in cached/uncached mode.

With create/mkdir/mknod in non cached mode we initialize the inode using
v9fs_get_inode. v9fs_get_inode doesn't initialize the cache inode value
to NULL.  This is causing to trip on BUG_ON in v9fs_get_cached_acl.
Fix is to initialize acls to NULL and not to leave them in ACL_NOT_CACHED
state.

Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/fs/9p/acl.c b/fs/9p/acl.c
index 291ff7be27f6..0a2e480477a5 100644
--- a/fs/9p/acl.c
+++ b/fs/9p/acl.c
@@ -132,6 +132,10 @@ static int v9fs_set_acl(struct dentry *dentry, int type, struct posix_acl *acl)
         struct inode *inode = dentry->d_inode;
 
         set_cached_acl(inode, type, acl);
+
+        if (!acl)
+                return 0;
+
         /* Set a setxattr request to server */
         size = posix_acl_xattr_size(acl->a_count);
         buffer = kmalloc(size, GFP_KERNEL);
@@ -181,10 +185,8 @@ int v9fs_acl_chmod(struct dentry *dentry)
 int v9fs_set_create_acl(struct dentry *dentry,
                         struct posix_acl *dpacl, struct posix_acl *pacl)
 {
-        if (dpacl)
-                v9fs_set_acl(dentry, ACL_TYPE_DEFAULT, dpacl);
-        if (pacl)
-                v9fs_set_acl(dentry, ACL_TYPE_ACCESS, pacl);
+        v9fs_set_acl(dentry, ACL_TYPE_DEFAULT, dpacl);
+        v9fs_set_acl(dentry, ACL_TYPE_ACCESS, pacl);
         posix_acl_release(dpacl);
         posix_acl_release(pacl);
         return 0;