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don't create nvme multipath device when enable remove_local_path

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Lixiaokeng 2022-03-08 11:35:40 +08:00
parent b6f069a7e4
commit 2d7bee4f06
2 changed files with 30 additions and 14 deletions
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39
0014-remove-local-disk-from-pathvec.patch
View File

@ -1,22 +1,26 @@
From a31fb57aff527b5304c9a1cb1bd729317280abdd Mon Sep 17 00:00:00 2001
From 2051a9f6ea12dc90c9c5b90912b79984d9064d0d Mon Sep 17 00:00:00 2001
From: chenminhua <chenminhua1@huawei.com>
Date: Mon, 2 Apr 2018 04:01:04 -0400
Subject: [PATCH 14/15] remove local disk from pathvec
Subject: [PATCH] remove local disk from pathvec
Here we provide a multipath_private.conf to enable remove_local_disk.
When enable remove_local_disk, the multipath devices are only created
on fc or iscsi devices.
[Changelog]:add upgrade path
[Author]:chenminhua
---
libmultipath/discovery.c | 128 ++++++++++++++++++++++++++++++++++++--
libmultipath/discovery.c | 137 ++++++++++++++++++++++++++++++++++++--
libmultipath/discovery.h | 1 +
libmultipath/libmultipath.version | 1 +
multipathd/main.c | 4 ++
4 files changed, 128 insertions(+), 6 deletions(-)
4 files changed, 137 insertions(+), 6 deletions(-)
diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
index f25fe9e..72982ac 100644
index f25fe9e..c9ebd49 100644
--- a/libmultipath/discovery.c
+++ b/libmultipath/discovery.c
@@ -37,6 +37,103 @@
@@ -37,6 +37,112 @@
#include "print.h"
#include "strbuf.h"
@ -68,14 +72,23 @@ index f25fe9e..72982ac 100644
+ return should_remove_local_disk;
+}
+
+/* Filter the local disks and remove them from pathvec */
+/* Filter the local disks and remove them from pathvec.
+ * When bus type is SCSI and device type is (fc or scsi),
+ * return 0. This means the path is not local disk.
+ * When enable remove_local_disk, multipath only supports
+ * iscsi and fc device.
+ */
+static int
+transport (int h)
+transport(int type, int h)
+{
+ char buff[PATH_SIZE];
+ int len, off;
+ struct stat a_stat;
+
+ if (type != SYSFS_BUS_SCSI) {
+ return 1;
+ }
+
+ /* FC host */
+ strcpy(buff, "/sys");
+ strcat(buff, "/class/fc_host/");
@ -106,7 +119,7 @@ index f25fe9e..72982ac 100644
+ return 1;
+ }
+
+ if (transport(pp->sg_id.host_no) == 0) {
+ if (transport(pp->bus, pp->sg_id.host_no) == 0) {
+ return 1;
+ }
+
@ -120,7 +133,7 @@ index f25fe9e..72982ac 100644
struct vpd_vendor_page vpd_vendor_pages[VPD_VP_ARRAY_SIZE] = {
[VPD_VP_UNDEF] = { 0x00, "undef" },
[VPD_VP_HP3PAR] = { 0xc0, "hp3par" },
@@ -128,22 +225,35 @@ path_discover (vector pathvec, struct config * conf,
@@ -128,22 +234,35 @@ path_discover (vector pathvec, struct config * conf,
{
struct path *pp;
char devt[BLK_DEV_SIZE];
@ -162,12 +175,12 @@ index f25fe9e..72982ac 100644
}
static void cleanup_udev_enumerate_ptr(void *arg)
@@ -2284,6 +2394,12 @@ int pathinfo(struct path *pp, struct config *conf, int mask)
@@ -2284,6 +2403,12 @@ int pathinfo(struct path *pp, struct config *conf, int mask)
if (rc != PATHINFO_OK)
return rc;
+ /* free local device */
+ if (get_should_remove_local_disk() && transport(pp->sg_id.host_no)) {
+ if (get_should_remove_local_disk() && transport(pp->bus, pp->sg_id.host_no)) {
+ condlog(3, "%s is a local device", pp->dev);
+ return 0;
+ }
@ -215,5 +228,5 @@ index 02f368a..47ca1b5 100644
* need path UID to go any further
*/
--
1.8.3.1
2.14.3 (Apple Git-98)

5
multipath-tools.spec
View File

@ -1,7 +1,7 @@
#needsrootforbuild
Name: multipath-tools
Version: 0.8.7
Release: 1
Release: 2
Summary: Tools to manage multipath devices with the device-mapper
License: GPL-2.0-or-later and LGPL-2.0-only
URL: http://christophe.varoqui.free.fr/
@ -170,6 +170,9 @@ fi
%changelog
* Tue Mar 8 2022 lixiaokeng<lixiaokeng@huawei.com> - 0.8.7-2
- don't create nvme multipath device when enable remove_local_path
* Tue Nov 23 2021 lixiaokeng<lixiaokeng@huawei.com> - 0.8.7-1
- upgrade to 0.8.7