From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 27 Aug 2013 03:25:43 +0000 (+1000)
Subject: xfs: fix bad dquot buffer size in log recovery readahead
X-Git-Tag: v3.12-rc1~80^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0f0d334595105d982ea22ae1d5947723e462344f;p=pandora-kernel.git

xfs: fix bad dquot buffer size in log recovery readahead

xfstests xfs/087 fails 100% reliably with this assert:

XFS (vdb): Mounting Filesystem
XFS (vdb): Starting recovery (logdev: internal)
XFS: Assertion failed: bp->b_flags & XBF_STALE, file: fs/xfs/xfs_buf.c, line: 548

while trying to read a dquot buffer in xlog_recover_dquot_ra_pass2().

The issue is that the buffer length to read that is passed to
xfs_buf_readahead is in units of filesystem blocks, not disk blocks.
(i.e. FSB, not daddr). Fix it but putting the correct conversion in
place.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---

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