From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753644AbZGVL2Z (ORCPT ); Wed, 22 Jul 2009 07:28:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753030AbZGVL2Y (ORCPT ); Wed, 22 Jul 2009 07:28:24 -0400 Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.122]:40275 "EHLO cdptpa-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752912AbZGVL2W (ORCPT ); Wed, 22 Jul 2009 07:28:22 -0400 From: Jeff Layton To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: smfrench@gmail.com, hch@infradead.org Subject: [PATCH] libfs: make get_sb_pseudo set s_maxbytes to value that can be cast to signed Date: Wed, 22 Jul 2009 07:28:18 -0400 Message-Id: <1248262099-12514-1-git-send-email-jlayton@redhat.com> X-Mailer: git-send-email 1.6.0.6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch is a counterpart to the CIFS patch posted yesterday. I believe either patch will fix the problem seen in do_sendfile since the smaller s_maxbytes value for the two superblocks is used there. get_sb_pseudo sets s_maxbytes to ~0ULL, which becomes negative when cast to a signed value. Fix it to use MAX_LFS_FILESIZE which casts properly to a positive signed value. Signed-off-by: Jeff Layton --- fs/libfs.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/fs/libfs.c b/fs/libfs.c index ddfa899..dcec3d3 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -217,7 +217,7 @@ int get_sb_pseudo(struct file_system_type *fs_type, char *name, return PTR_ERR(s); s->s_flags = MS_NOUSER; - s->s_maxbytes = ~0ULL; + s->s_maxbytes = MAX_LFS_FILESIZE; s->s_blocksize = PAGE_SIZE; s->s_blocksize_bits = PAGE_SHIFT; s->s_magic = magic; -- 1.6.0.6