Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / fs / cifs / inode.c

diff --git a/kernel/fs/cifs/inode.c b/kernel/fs/cifs/inode.c
index a329f5b..9cdeb02 100644 (file)
--- a/kernel/fs/cifs/inode.c
+++ b/kernel/fs/cifs/inode.c
@@ -982,10 +982,26 @@ struct inode *cifs_root_iget(struct super_block *sb)
        struct inode *inode = NULL;
        long rc;
        struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
+       char *path = NULL;
+       int len;
+
+       if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH)
+           && cifs_sb->prepath) {
+               len = strlen(cifs_sb->prepath);
+               path = kzalloc(len + 2 /* leading sep + null */, GFP_KERNEL);
+               if (path == NULL)
+                       return ERR_PTR(-ENOMEM);
+               path[0] = '/';
+               memcpy(path+1, cifs_sb->prepath, len);
+       } else {
+               path = kstrdup("", GFP_KERNEL);
+               if (path == NULL)
+                       return ERR_PTR(-ENOMEM);
+       }
 
        xid = get_xid();
        if (tcon->unix_ext) {
-               rc = cifs_get_inode_info_unix(&inode, "", sb, xid);
+               rc = cifs_get_inode_info_unix(&inode, path, sb, xid);
                /* some servers mistakenly claim POSIX support */
                if (rc != -EOPNOTSUPP)
                        goto iget_no_retry;
@@ -993,7 +1009,8 @@ struct inode *cifs_root_iget(struct super_block *sb)
                tcon->unix_ext = false;
        }
 
-       rc = cifs_get_inode_info(&inode, "", NULL, sb, xid, NULL);
+       convert_delimiter(path, CIFS_DIR_SEP(cifs_sb));
+       rc = cifs_get_inode_info(&inode, path, NULL, sb, xid, NULL);
 
 iget_no_retry:
        if (!inode) {
@@ -1022,6 +1039,7 @@ iget_no_retry:
        }
 
 out:
+       kfree(path);
        /* can not call macro free_xid here since in a void func
         * TODO: This is no longer true
         */