linux-kernel - [PATCH 3.10 159/319] libxfs: clean up _calc_dquots_per

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Date:   Sun,  5 Feb 2017 20:19:41 +0100
From:   Willy Tarreau <w@....eu>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        linux@...ck-us.net
Cc:     "Darrick J. Wong" <darrick.wong@...cle.com>,
        Dave Chinner <david@...morbit.com>, Willy Tarreau <w@....eu>
Subject: [PATCH 3.10 159/319] libxfs: clean up _calc_dquots_per_chunk

From: "Darrick J. Wong" <darrick.wong@...cle.com>

commit 58d789678546d46d7bbd809dd7dab417c0f23655 upstream.

The function xfs_calc_dquots_per_chunk takes a parameter in units
of basic blocks.  The kernel seems to get the units wrong, but
userspace got 'fixed' by commenting out the unnecessary conversion.
Fix both.

Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>
Reviewed-by: Eric Sandeen <sandeen@...hat.com>
Signed-off-by: Dave Chinner <david@...morbit.com>
Signed-off-by: Willy Tarreau <w@....eu>
---
 fs/xfs/xfs_dquot.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index bac3e16..e59f309 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -309,8 +309,7 @@ xfs_dquot_buf_verify_crc(
 	if (mp->m_quotainfo)
 		ndquots = mp->m_quotainfo->qi_dqperchunk;
 	else
-		ndquots = xfs_qm_calc_dquots_per_chunk(mp,
-					XFS_BB_TO_FSB(mp, bp->b_length));
+		ndquots = xfs_qm_calc_dquots_per_chunk(mp, bp->b_length);
 
 	for (i = 0; i < ndquots; i++, d++) {
 		if (!xfs_verify_cksum((char *)d, sizeof(struct xfs_dqblk),
-- 
2.8.0.rc2.1.gbe9624a