From 4f3b57832ba39223c6f8823d07b9fb206e282ced Mon Sep 17 00:00:00 2001
From: Jeff Liu <jeff.liu@oracle.com>
Date: Mon, 28 Jan 2013 21:25:35 +0800
Subject: [PATCH] xfs: add a helper to figure out the space log reservation per
 item

Add a new helper xfs_calc_buf_res() to calcuate out the transaction space
reservations per item.  xfs_buf_log_overhead() is used to figure out the
extra space for struct xfs_buf_log_format that gets written into the log
for every buffer as well as a log opheader, i.e. struct xlog_op_header.

Signed-off-by: Jie Liu <jeff.liu@oracle.com>
CC: Dave Chinner <david@fromorbit.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
Reading git-format-patch failed