Commit e544046a authored May 04, 2011 by Andreas Gruenbacher Committed by Philipp Reisner Nov 08, 2012

drbd: Turn no-md-flushes into md-flushes={yes|no}



Change the --no-md-flushes drbdsetup command line option as well as
the no_md_flush netlink packet.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

parent d0c980e2

drivers/block/drbd/drbd_nl.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -1449,10 +1449,10 @@ int drbd_adm_attach(struct sk_buff skb, struct genl_info info)

		/* Reset the "barriers don't work" bits here, then force meta data to
		* be written, to ensure we determine if barriers are supported. */
		if (new_disk_conf->no_md_flush)
		set_bit(MD_NO_FUA, &mdev->flags);
		else
		if (new_disk_conf->md_flushes)
		clear_bit(MD_NO_FUA, &mdev->flags);
		else
		set_bit(MD_NO_FUA, &mdev->flags);

		/* Point of no return reached.
		* Devices and memory are no longer released by error cleanup below.

include/linux/drbd_genl.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -125,7 +125,7 @@ GENL_struct(DRBD_NLA_DISK_CONF, 3, disk_conf,
		__flg_field_def(16, GENLA_F_MANDATORY, disk_barrier, 1)
		__flg_field_def(17, GENLA_F_MANDATORY, disk_flushes, 1)
		__flg_field_def(18, GENLA_F_MANDATORY, disk_drain, 1)
		__flg_field_def(19, GENLA_F_MANDATORY, no_md_flush, 0)
		__flg_field_def(19, GENLA_F_MANDATORY, md_flushes, 1)
		)

		GENL_struct(DRBD_NLA_RESOURCE_OPTS, 4, res_opts,