On Thu, Dec 13, 2012 at 05:39:08PM +0000, Steven Hartland wrote: > Author: smh > Date: Thu Dec 13 17:39:07 2012 > New Revision: 244188 > URL: http://svnweb.freebsd.org/changeset/base/244188 > > Log: > Added vfs.zfs.vdev.trim_on_init sysctl which allows full vdev trim on > initialisation to be enabled (1) / disabled (0) defaults to enabled. > > This is useful for devices which have a slow trim speed and are either > new or have otherwise already been wiped e.g. secure erase. > > PR: kern/173116 > Submitted by: Steven Hartland > Approved by: pjd (mentor) > > Modified: > head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_label.c > > Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_label.c > ============================================================================== > --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_label.c Thu Dec > 13 17:06:38 2012 (r244187) > +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_label.c Thu Dec > 13 17:39:07 2012 (r244188) > @@ -148,6 +148,11 @@ > #include <sys/trim_map.h> > #include <sys/fs/zfs.h> > > +static boolean_t vdev_trim_on_init = B_TRUE; > +SYSCTL_DECL(_vfs_zfs_vdev); > +SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, trim_on_init, CTLFLAG_RW, > + &vdev_trim_on_init, 0, "Enable/disable full vdev trim on > initialisation");
I'd also make it loader tunable. -- Pawel Jakub Dawidek http://www.wheelsystems.com FreeBSD committer http://www.FreeBSD.org Am I Evil? Yes, I Am! http://tupytaj.pl
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