From: Paulo Alcantara pc@manguebit.com
commit 5f2a0afa9890e728428db2ed9281bddca242e90b upstream.
Some servers may return error codes from REQ_GET_DFS_REFERRAL requests that are unexpected by the client, so to make it easier, assume non-DFS mounts when the client can't get the initial DFS referral of @ctx->UNC in dfs_mount_share().
Signed-off-by: Paulo Alcantara (SUSE) pc@manguebit.com Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/smb/client/dfs.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
--- a/fs/smb/client/dfs.c +++ b/fs/smb/client/dfs.c @@ -296,8 +296,9 @@ int dfs_mount_share(struct cifs_mount_ct if (!nodfs) { rc = dfs_get_referral(mnt_ctx, ctx->UNC + 1, NULL, NULL); if (rc) { - if (rc != -ENOENT && rc != -EOPNOTSUPP && rc != -EIO) - return rc; + cifs_dbg(FYI, "%s: no dfs referral for %s: %d\n", + __func__, ctx->UNC + 1, rc); + cifs_dbg(FYI, "%s: assuming non-dfs mount...\n", __func__); nodfs = true; } }