[<prev] [next>] [day] [month] [year] [list]
Message-Id: <1287586804-17498-1-git-send-email-jslaby@suse.cz>
Date: Wed, 20 Oct 2010 17:00:04 +0200
From: Jiri Slaby <jslaby@...e.cz>
To: chris.mason@...cle.com
Cc: akpm@...ux-foundation.org, linux-btrfs@...r.kernel.org,
linux-kernel@...r.kernel.org, jirislaby@...il.com
Subject: [PATCH -repost#3 1/1] FS: btrfs, use helpers for rlimits
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 <jslaby@...e.cz>
Cc: Chris Mason <chris.mason@...cle.com>
Cc: linux-btrfs@...r.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 a21625d..323c6ca 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -3564,8 +3564,7 @@ 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) {
--
1.7.3.1
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists