freebsd-nq/etc/init.d
Etienne Dechamps b5a28807cd Move partition scanning from userspace to module.
Currently, zpool online -e (dynamic vdev expansion) doesn't work on
whole disks because we're invoking ioctl(BLKRRPART) from userspace
while ZFS still has a partition open on the disk, which results in
EBUSY.

This patch moves the BLKRRPART invocation from the zpool utility to the
module. Specifically, this is done just before opening the device in
vdev_disk_open() which is called inside vdev_reopen(). This requires
jumping through some hoops to get to the disk device from the partition
device, and to make sure we can still open the partition after the
BLKRRPART call.

Note that this new code path is triggered on dynamic vdev expansion
only; other actions, like creating a new pool, are unchanged and still
call BLKRRPART from userspace.

This change also depends on API changes which are available in 2.6.37
and latter kernels.  The build system has been updated to detect this,
but there is no compatibility mode for older kernels.  This means that
online expansion will NOT be available in older kernels.  However, it
will still be possible to expand the vdev offline.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #808
2012-07-17 09:17:31 -07:00
..
.gitignore Fix autoconf variable substitution in init scripts. 2011-08-19 16:26:14 -07:00
Makefile.am Use automatic variable in Makefile 2011-09-26 09:22:30 -07:00
Makefile.in Move partition scanning from userspace to module. 2012-07-17 09:17:31 -07:00
zfs.arch.in Fix incorrect zpool_cache substitution 2011-08-22 16:01:59 -07:00
zfs.fedora.in Fix incorrect zpool_cache substitution 2011-08-22 16:01:59 -07:00
zfs.gentoo.in Relicense zfs.gentoo.in from GPLv2 to 2-clause BSD 2012-07-10 15:00:16 -07:00
zfs.lsb.in Quote variables in the zfs.lsb script. 2011-12-05 09:51:55 -08:00
zfs.lunar.in Fix incorrect zpool_cache substitution 2011-08-22 16:01:59 -07:00
zfs.redhat.in Fix incorrect zpool_cache substitution 2011-08-22 16:01:59 -07:00