[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20110304171518.GB26708@ZenIV.linux.org.uk>
Date: Fri, 4 Mar 2011 17:15:18 +0000
From: Al Viro <viro@...IV.linux.org.uk>
To: chris.mason@...cle.com
Cc: linux-kernel@...r.kernel.org, linux-btrfs@...r.kernel.org
Subject: [PATCH 2/2] btrfs: check link counter overflow in link(2)
Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
fs/btrfs/inode.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 099d64c..8a6df03 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4826,6 +4826,9 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
if (root->objectid != BTRFS_I(inode)->root->objectid)
return -EPERM;
+ if (inode->i_nlink == ~0U)
+ return -EMLINK;
+
btrfs_inc_nlink(inode);
inode->i_ctime = CURRENT_TIME;
--
1.7.2.5
--
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