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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/
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