From: David Howells <dhowells@redhat.com>
Date: Fri, 11 Jul 2008 13:39:56 +0000 (+0100)
Subject: [GFS2] Fix GFS2's use of do_div() in its quota calculations
X-Git-Tag: v2.6.27-rc1~1083^2
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4abaca17e758e3326c96ced88b2cd9b7b84922f6;p=linux-2.6

[GFS2] Fix GFS2's use of do_div() in its quota calculations

Fix GFS2's need_sync()'s use of do_div() on an s64 by using div_s64() instead.

This does assume that gt_quota_scale_den can be cast to an s32.

This was introduced by patch b3b94faa5fe5968827ba0640ee9fba4b3e7f736e.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---

diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 56aaf915c5..3e073f5144 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -904,7 +904,7 @@ static int need_sync(struct gfs2_quota_data *qd)
 		do_sync = 0;
 	else {
 		value *= gfs2_jindex_size(sdp) * num;
-		do_div(value, den);
+		value = div_s64(value, den);
 		value += (s64)be64_to_cpu(qd->qd_qb.qb_value);
 		if (value < (s64)be64_to_cpu(qd->qd_qb.qb_limit))
 			do_sync = 0;