From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757603Ab0FONu2 (ORCPT ); Tue, 15 Jun 2010 09:50:28 -0400 Received: from mail.pripojeni.net ([217.66.174.14]:40859 "EHLO mail.jetsystems.cz" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1757188Ab0FONu1 (ORCPT ); Tue, 15 Jun 2010 09:50:27 -0400 From: Jiri Slaby To: chris.mason@oracle.com Cc: linux-kernel@vger.kernel.org, jirislaby@gmail.com, Jiri Slaby , linux-btrfs@vger.kernel.org Subject: [PATCH 1/1] FS: btrfs, use helpers for rlimits Date: Tue, 15 Jun 2010 15:48:08 +0200 Message-Id: <1276609688-2117-1-git-send-email-jslaby@suse.cz> X-Mailer: git-send-email 1.7.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Make sure compiler won't do weird things with limits. E.g. fetching them twice may return 2 different values after writable limits are implemented. I.e. either use rlimit helpers added in 3e10e716abf3c71bdb5d86b8f507f9e72236c9cd or ACCESS_ONCE if not applicable. Signed-off-by: Jiri Slaby Cc: Chris Mason Cc: linux-btrfs@vger.kernel.org --- fs/btrfs/inode.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 44d404c..8f11078 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3576,8 +3576,7 @@ static int btrfs_setattr_size(struct inode *inode, struct iattr *attr) return 0; if (attr->ia_size > inode->i_size) { - unsigned long limit; - limit = current->signal->rlim[RLIMIT_FSIZE].rlim_cur; + unsigned long limit = rlimit(RLIMIT_FSIZE); if (attr->ia_size > inode->i_sb->s_maxbytes) return -EFBIG; if (limit != RLIM_INFINITY && attr->ia_size > limit) { -- 1.7.1