From: Philipp Reisner <philipp.reisner@linbit.com>
To: linux-kernel@vger.kernel.org, Jens Axboe <axboe@kernel.dk>
Cc: drbd-dev@lists.linbit.com
Subject: [PATCH 07/15] drbd: in drbd_suspend_al, set AL_SUSPENDED before unlocking the activity log
Date: Tue, 30 Aug 2011 11:05:41 +0200 [thread overview]
Message-ID: <1314695149-387-8-git-send-email-philipp.reisner@linbit.com> (raw)
In-Reply-To: <1314695149-387-1-git-send-email-philipp.reisner@linbit.com>
From: Lars Ellenberg <lars.ellenberg@linbit.com>
As using an empty activity log is the whole point of the excercise,
make sure it is still empty when setting AL_SUSPENDED.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
---
drivers/block/drbd/drbd_nl.c | 8 +++-----
1 files changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index d6832f8..ae8f42e 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -901,19 +901,17 @@ static void drbd_suspend_al(struct drbd_conf *mdev)
{
int s = 0;
- if (lc_try_lock(mdev->act_log)) {
- drbd_al_shrink(mdev);
- lc_unlock(mdev->act_log);
- } else {
+ if (!lc_try_lock(mdev->act_log)) {
dev_warn(DEV, "Failed to lock al in drbd_suspend_al()\n");
return;
}
+ drbd_al_shrink(mdev);
spin_lock_irq(&mdev->tconn->req_lock);
if (mdev->state.conn < C_CONNECTED)
s = !test_and_set_bit(AL_SUSPENDED, &mdev->flags);
-
spin_unlock_irq(&mdev->tconn->req_lock);
+ lc_unlock(mdev->act_log);
if (s)
dev_info(DEV, "Suspended AL updates\n");
--
1.7.4.1
next prev parent reply other threads:[~2011-08-30 9:07 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-30 9:05 [RFC 00/15] drbd: part 2 of adding multiple volume support to drbd Philipp Reisner
2011-08-30 9:05 ` [PATCH 01/15] drbd: Rename drbd_endio_{pri,sec} -> drbd_{,peer_}request_endio Philipp Reisner
2011-08-30 9:05 ` [PATCH 02/15] drbd: Iterate over all overlapping intervals in a tree Philipp Reisner
2011-08-30 9:05 ` [PATCH 03/15] drbd: Remove obsolete comment Philipp Reisner
2011-08-30 9:05 ` [PATCH 04/15] drbd: Use the IS_ALIGNED() macro in some more places Philipp Reisner
2011-08-30 9:05 ` [PATCH 05/15] drbd: simplify condition in drbd_may_do_local_read() Philipp Reisner
2011-08-30 9:05 ` [PATCH 06/15] drbd: fix typo in comment Philipp Reisner
2011-08-30 9:05 ` Philipp Reisner [this message]
2011-08-30 9:05 ` [PATCH 08/15] drbd: use clear_bit_unlock() where appropriate Philipp Reisner
2011-08-30 9:05 ` [PATCH 09/15] lru_cache.h: fix comments referring to ts_ instead of lc_ Philipp Reisner
2011-08-30 9:05 ` [PATCH 10/15] lru_cache: consolidate lc_get and lc_try_get Philipp Reisner
2011-08-30 9:05 ` [PATCH 11/15] drbd: allow to select specific bitmap pages for writeout Philipp Reisner
2011-08-30 9:05 ` [PATCH 12/15] lru_cache: allow multiple changes per transaction Philipp Reisner
2011-08-30 9:05 ` [PATCH 13/15] drbd: new on-disk activity log transaction format Philipp Reisner
2011-08-30 9:05 ` [PATCH 14/15] drbd: silence some log messages on bitmap IO Philipp Reisner
2011-08-30 9:05 ` [PATCH 15/15] drbd: fix a wrong likely(), updated comments Philipp Reisner
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