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From: Alexander Motin <mav@FreeBSD.org>
Date: Sat, 3 Oct 2015 11:18:31 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r288588 -
 stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs
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Author: mav
Date: Sat Oct  3 11:18:30 2015
New Revision: 288588
URL: https://svnweb.freebsd.org/changeset/base/288588

Log:
  MFC r286951: Restore part of r274628, reverted at r286776.

Modified:
  stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
==============================================================================
--- stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c	Sat Oct  3 11:17:31 2015	(r288587)
+++ stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c	Sat Oct  3 11:18:30 2015	(r288588)
@@ -6532,7 +6532,8 @@ l2arc_compress_buf(arc_buf_hdr_t *hdr)
 	csize = zio_compress_data(ZIO_COMPRESS_LZ4, hdr->b_l1hdr.b_tmp_cdata,
 	    cdata, l2hdr->b_asize);
 
-	rounded = P2ROUNDUP(csize, (size_t)SPA_MINBLOCKSIZE);
+	rounded = P2ROUNDUP(csize,
+	    (size_t)1 << l2hdr->b_dev->l2ad_vdev->vdev_ashift);
 	if (rounded > csize) {
 		bzero((char *)cdata + csize, rounded - csize);
 		csize = rounded;