Date: Fri, 12 Nov 2010 16:00:09 +0100 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-geom@freebsd.org Cc: freebsd-fs@freebsd.org Subject: ZFS stripesize patch (in the context of 4k sector drives) Message-ID: <ibjkpq$m03$1@dough.gmane.org>
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Hello,
Any objections to me committing the following patch?
The intention is to use stripesize info from GEOM in creating vdevs, in
the hope that the 4 KiB sector magic will work.
Index: cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c
===================================================================
--- cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c
(revision 215173)
+++ cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c (working
copy)
@@ -496,7 +496,8 @@
/*
* Determine the device's minimum transfer size.
*/
- *ashift = highbit(MAX(pp->sectorsize, SPA_MINBLOCKSIZE)) - 1;
+ *ashift = highbit(MAX(pp->stripesize ? pp->stripesize :
pp->sectorsize,
+ SPA_MINBLOCKSIZE)) - 1;
/*
* Clear the nowritecache bit, so that on a vdev_reopen() we will
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