Commit 7e6b6465 authored Feb 18, 2011 by Miao Xie Committed by Chris Mason Mar 10, 2011

btrfs: fix not enough reserved space



btrfs_link() will insert 3 items(inode ref, dir name item and dir index item)
into the b+ tree and update 2 items(its inode, and parent's inode) in the b+
tree. So we should reserve space for these 5 items, not 3 items.

Reported-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

parent b4966b77

fs/btrfs/inode.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -4823,10 +4823,11 @@ static int btrfs_link(struct dentry old_dentry, struct inode dir,
		goto fail;

		/*
		* 1 item for inode ref
		* 2 items for inode and inode ref
		* 2 items for dir items
		* 1 item for parent inode
		*/
		trans = btrfs_start_transaction(root, 3);
		trans = btrfs_start_transaction(root, 5);
		if (IS_ERR(trans)) {
		err = PTR_ERR(trans);
		goto fail;