3.2.46-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Philipp Reisner <philipp.reis...@linbit.com>
commit 7c689e63a847316c1b2500f86891b0a574ce7e69 upstream.
With an automatic after split-brain recovery policy of
"after-sb-1pri call-pri-lost-after-sb",
when trying to drbd_set_role() to R_SECONDARY,
we run into a deadlock.
This was first recognized and supposedly fixed by
2009-06-10 "Fixed a deadlock when using automatic split brain recovery when
both nodes are"
replacing drbd_set_role() with drbd_change_state() in that code-path,
but the first hunk of that patch forgets to remove the drbd_set_role().
We apparently only ever tested the "two primaries" case.
Signed-off-by: Philipp Reisner <philipp.reis...@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenb...@linbit.com>
Signed-off-by: Jens Axboe <ax...@kernel.dk>
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
drivers/block/drbd/drbd_receiver.c | 1 -
1 file changed, 1 deletion(-)
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -2225,7 +2225,6 @@ static int drbd_asb_recover_1p(struct dr
if (hg == -1 && mdev->state.role == R_PRIMARY) {
enum drbd_state_rv rv2;
- drbd_set_role(mdev, R_SECONDARY, 0);
/* drbd_change_state() does not sleep while in
SS_IN_TRANSIENT_STATE,
* we might be here in C_WF_REPORT_PARAMS which is
transient.
* we do not need to wait for the after state change
work either. */
--
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