Merge tag 'dmaengine-fix-5.0-rc6' of git://git.infradead.org/users/vkoul/slave-dma

[linux-2.6-microblaze.git] / fs / cifs / smb2inode.c

diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c
index f14533d..01a76bc 100644 (file)
--- a/fs/cifs/smb2inode.c
+++ b/fs/cifs/smb2inode.c
@@ -293,6 +293,8 @@ smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
        int rc;
        struct smb2_file_all_info *smb2_data;
        __u32 create_options = 0;
+       struct cifs_fid fid;
+       bool no_cached_open = tcon->nohandlecache;
 
        *adjust_tz = false;
        *symlink = false;
@@ -301,6 +303,21 @@ smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
                            GFP_KERNEL);
        if (smb2_data == NULL)
                return -ENOMEM;
+
+       /* If it is a root and its handle is cached then use it */
+       if (!strlen(full_path) && !no_cached_open) {
+               rc = open_shroot(xid, tcon, &fid);
+               if (rc)
+                       goto out;
+               rc = SMB2_query_info(xid, tcon, fid.persistent_fid,
+                                    fid.volatile_fid, smb2_data);
+               close_shroot(&tcon->crfid);
+               if (rc)
+                       goto out;
+               move_smb2_info_to_cifs(data, smb2_data);
+               goto out;
+       }
+
        if (backup_cred(cifs_sb))
                create_options |= CREATE_OPEN_BACKUP_INTENT;