zfsonlinux/zfs-patches/0014-Emit-an-error-message-before-MMP-suspends-pool.patch
Fabian Grünbichler 75b07eca3e update ZFS to 0.7.7
by importing the upstream release as patches. replace user namespace
patch with version which has been applied usptream.
2018-04-03 14:25:21 +02:00

50 lines
1.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: "John L. Hammond" <35266395+jhammond-intel@users.noreply.github.com>
Date: Wed, 17 Jan 2018 14:24:42 -0600
Subject: [PATCH] Emit an error message before MMP suspends pool
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
In mmp_thread(), emit an MMP specific error message before calling
zio_suspend() so that the administrator will understand why the pool
is being suspended.
Reviewed-by: Olaf Faaland <faaland1@llnl.gov>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: John L. Hammond <john.hammond@intel.com>
Closes #7048
(cherry picked from commit ecc972c7f009e1fa75900e276a4c1306c55b5722)
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---
module/zfs/mmp.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/module/zfs/mmp.c b/module/zfs/mmp.c
index 6f2aa3f59..e91ae628a 100644
--- a/module/zfs/mmp.c
+++ b/module/zfs/mmp.c
@@ -26,6 +26,7 @@
#include <sys/mmp.h>
#include <sys/spa.h>
#include <sys/spa_impl.h>
+#include <sys/time.h>
#include <sys/vdev.h>
#include <sys/vdev_impl.h>
#include <sys/zfs_context.h>
@@ -428,6 +429,10 @@ mmp_thread(spa_t *spa)
*/
if (!suspended && mmp_fail_intervals && multihost &&
(start - mmp->mmp_last_write) > max_fail_ns) {
+ cmn_err(CE_WARN, "MMP writes to pool '%s' have not "
+ "succeeded in over %llus; suspending pool",
+ spa_name(spa),
+ NSEC2SEC(start - mmp->mmp_last_write));
zio_suspend(spa, NULL);
}
--
2.14.2