From: NeilBrown <nfbrown@novell.com>
To: Heinz Mauelshagen <heinzm@redhat.com>,
Alasdair G Kergon <agk@redhat.com>
Cc: linux-raid@vger.kernel.org, dm-devel@redhat.com
Subject: [PATCH 5/8] dm-raid456: add suspend/resume method
Date: Mon, 26 Jul 2010 13:24:35 +1000 [thread overview]
Message-ID: <20100726032435.29687.8430.stgit@localhost.localdomain> (raw)
In-Reply-To: <20100726032230.29687.5366.stgit@localhost.localdomain>
These just call in to the md methods.
Signed-off-by: NeilBrown <neilb@suse.de>
---
drivers/md/dm-raid456.c | 22 ++++++++++++++++++++++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/drivers/md/dm-raid456.c b/drivers/md/dm-raid456.c
index 4ffd654..e2546fc 100644
--- a/drivers/md/dm-raid456.c
+++ b/drivers/md/dm-raid456.c
@@ -466,6 +466,25 @@ static void raid_io_hints(struct dm_target *ti,
(conf->raid_disks - conf->max_degraded));
}
+static void raid_presuspend(struct dm_target *ti)
+{
+ struct raid_set *rs = ti->private;
+ md_stop_writes(&rs->md);
+}
+
+static void raid_postsuspend(struct dm_target *ti)
+{
+ struct raid_set *rs = ti->private;
+ mddev_suspend(&rs->md);
+}
+
+static void raid_resume(struct dm_target *ti)
+{
+ struct raid_set *rs = ti->private;
+
+ mddev_resume(&rs->md);
+}
+
static struct target_type raid_target = {
.name = "raid45",
.version = {1, 0, 0},
@@ -476,6 +495,9 @@ static struct target_type raid_target = {
.status = raid_status,
.iterate_devices = raid_iterate_devices,
.io_hints = raid_io_hints,
+ .presuspend = raid_presuspend,
+ .postsuspend = raid_postsuspend,
+ .resume = raid_resume,
};
static int __init dm_raid_init(void)
next prev parent reply other threads:[~2010-07-26 3:24 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-26 3:24 [PATCH 0/8] The DM part of dm-raid45 NeilBrown
2010-07-26 3:24 ` [PATCH 8/8] dm-raid456: switch to use dm_dirty_log for tracking dirty regions NeilBrown
2010-07-26 3:24 ` [PATCH 1/8] md/dm: create dm-raid456 module using md/raid5 NeilBrown
2010-07-26 3:24 ` [PATCH 2/8] dm-raid456: add congestion checking NeilBrown
2010-07-26 3:24 ` [PATCH 6/8] dm-raid456: add message handler NeilBrown
2010-07-26 3:24 ` [PATCH 3/8] dm-raid456: support unplug NeilBrown
2010-07-26 3:24 ` [PATCH 4/8] dm-raid456: add support for setting IO hints NeilBrown
2010-07-26 3:24 ` NeilBrown [this message]
2010-07-26 3:24 ` [PATCH 7/8] dm-dirty-log: allow log size to be different from target size NeilBrown
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