[CIFS] Allow setting mode via cifs acl

Requires cifsacl mount flag to be on and CIFS_EXPERIMENTAL enabled

CC: Shirish Pargaonkar <shirishp@us.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 10 insertions, 4 deletions

diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index e915eb1d2e66..fdc0fe109d7b 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1607,7 +1607,13 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
                                                 CIFS_MOUNT_MAP_SPECIAL_CHR);
         else if (attrs->ia_valid & ATTR_MODE) {
                 rc = 0;
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+                if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL)
+                        rc = mode_to_acl(direntry->d_inode, full_path, mode);
+                else if ((mode & S_IWUGO) == 0) /* not writeable */ {
+#else
                 if ((mode & S_IWUGO) == 0) /* not writeable */ {
+#endif
                         if ((cifsInode->cifsAttrs & ATTR_READONLY) == 0) {
                                 set_dosattr = TRUE;
                                 time_buf.Attributes =
@@ -1626,10 +1632,10 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
                         if (time_buf.Attributes == 0)
                                 time_buf.Attributes |= cpu_to_le32(ATTR_NORMAL);
                 }
-                /* BB to be implemented -
-                   via Windows security descriptors or streams */
-                /* CIFSSMBWinSetPerms(xid, pTcon, full_path, mode, uid, gid,
-                                      cifs_sb->local_nls); */
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+                if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL)
+                        mode_to_acl(direntry->d_inode, full_path, mode);
+#endif
         }
 
         if (attrs->ia_valid & ATTR_ATIME) {