2b0cd7cceb
Rebased on top of Martin Wilck's queue of ACKed upstream commits * https://github.com/openSUSE/multipath-tools/tree/upstream-queue * All previous patches have been reordered, with the exception of 0011-libdmmp-Add-support-for-upcoming-json-c-0.14.0.patch which has been replaced with 0029-fix-boolean-value-with-json-c-0.14.patch Modify 0054-RH-add-mpathconf.patch * remove default enable_foreign and property blacklist_exceptions settings, and deal with the builtin default change from 0031-libmultipath-set-enable_foreign-to-NONE-by-default.patch. Fixes bz #1853668 Add 0048-Makefile.inc-trim-extra-information-from-systemd-ver.patch Add 0049-kpartx-fix-Wsign-compare-error.patch * The above two patches have been submitted upstream
65 lines
2.3 KiB
Diff
65 lines
2.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Benjamin Marzinski <bmarzins@redhat.com>
|
|
Date: Thu, 2 Jul 2020 19:07:05 -0500
|
|
Subject: [PATCH] multipath: delegate flushing maps to multipathd
|
|
|
|
Since there can be problems with removing maps outside of multipathd,
|
|
multipath should attempt to delegate this command to multipathd.
|
|
However, multipathd doesn't attempt to suspend the device, in order
|
|
to avoid potential hangs. If delegating to multipathd fails, multipath
|
|
should try the remove itself.
|
|
|
|
Reviewed-by: Martin Wilck <mwilck@suse.com>
|
|
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
|
|
---
|
|
multipath/main.c | 14 ++++++++++++++
|
|
multipath/multipath.8 | 4 ++--
|
|
2 files changed, 16 insertions(+), 2 deletions(-)
|
|
|
|
diff --git a/multipath/main.c b/multipath/main.c
|
|
index 101fd656..6a24e483 100644
|
|
--- a/multipath/main.c
|
|
+++ b/multipath/main.c
|
|
@@ -820,6 +820,20 @@ int delegate_to_multipathd(enum mpath_cmds cmd,
|
|
if (cmd == CMD_CREATE && conf->force_reload == FORCE_RELOAD_YES) {
|
|
p += snprintf(p, n, "reconfigure");
|
|
}
|
|
+ else if (cmd == CMD_FLUSH_ONE && dev && dev_type == DEV_DEVMAP) {
|
|
+ p += snprintf(p, n, "del map %s", dev);
|
|
+ /* multipathd doesn't try as hard, to avoid potentially
|
|
+ * hanging. If it fails, retry with the regular multipath
|
|
+ * command */
|
|
+ r = NOT_DELEGATED;
|
|
+ }
|
|
+ else if (cmd == CMD_FLUSH_ALL) {
|
|
+ p += snprintf(p, n, "del maps");
|
|
+ /* multipathd doesn't try as hard, to avoid potentially
|
|
+ * hanging. If it fails, retry with the regular multipath
|
|
+ * command */
|
|
+ r = NOT_DELEGATED;
|
|
+ }
|
|
/* Add other translations here */
|
|
|
|
if (strlen(command) == 0)
|
|
diff --git a/multipath/multipath.8 b/multipath/multipath.8
|
|
index 6fb8645a..5b29a5d9 100644
|
|
--- a/multipath/multipath.8
|
|
+++ b/multipath/multipath.8
|
|
@@ -125,11 +125,11 @@ the system.
|
|
Other operation modes are chosen by using one of the following command line switches:
|
|
.TP
|
|
.B \-f
|
|
-Flush (remove) a multipath device map specified as parameter, if unused.
|
|
+Flush (remove) a multipath device map specified as parameter, if unused. This operation is delegated to the multipathd daemon if it's running.
|
|
.
|
|
.TP
|
|
.B \-F
|
|
-Flush (remove) all unused multipath device maps.
|
|
+Flush (remove) all unused multipath device maps. This operation is delegated to the multipathd daemon if it's running.
|
|
.
|
|
.TP
|
|
.B \-l
|
|
--
|
|
2.17.2
|
|
|