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From: Robert Noland <rnoland@FreeBSD.org>
Date: Sat, 14 Nov 2009 16:14:51 +0000 (UTC)
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Subject: svn commit: r199272 - stable/8/sys/cddl/boot/zfs
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Author: rnoland
Date: Sat Nov 14 16:14:51 2009
New Revision: 199272
URL: http://svn.freebsd.org/changeset/base/199272

Log:
  MFC r199241
  
  This patch addresses an overflow in the the zfs boot code and allows
  users to boot from zfs raidz volumes.  This has been tested by a number
  of users and does not impact those which are not booting from zfs raidz
  volumes.
  
  Submitted by:	Matt Reimer <mattjreimer@gmail.com>

Modified:
  stable/8/sys/cddl/boot/zfs/zfssubr.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)
  stable/8/sys/dev/xen/xenpci/   (props changed)
  stable/8/sys/netinet6/   (props changed)

Modified: stable/8/sys/cddl/boot/zfs/zfssubr.c
==============================================================================
--- stable/8/sys/cddl/boot/zfs/zfssubr.c	Sat Nov 14 15:56:23 2009	(r199271)
+++ stable/8/sys/cddl/boot/zfs/zfssubr.c	Sat Nov 14 16:14:51 2009	(r199272)
@@ -550,7 +550,8 @@ vdev_raidz_read(vdev_t *vdev, const blkp
 	uint64_t s = psize >> unit_shift;
 	uint64_t f = b % dcols;
 	uint64_t o = (b / dcols) << unit_shift;
-	int q, r, c, c1, bc, col, acols, coff, devidx, asize, n;
+	uint64_t q, r, coff;
+	int c, c1, bc, col, acols, devidx, asize, n;
 	static raidz_col_t cols[16];
 	raidz_col_t *rc, *rc1;