1dad67a5af
Update Source to upstream version 0.8.5 plus post tag commits
* Patches 0001-0102 are from
https://github.com/openSUSE/multipath-tools/tree/queue and are
already queued for upstream.
Rename files
* Previous patches 0059-0068 are now patches 0103-0111
141 lines
4.0 KiB
Diff
141 lines
4.0 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Martin Wilck <mwilck@suse.com>
|
|
Date: Fri, 4 Jan 2019 16:59:49 +0100
|
|
Subject: [PATCH] multipathd: allow shutdown during configure()
|
|
|
|
reconfigure() can be a long-running operation; both initial path
|
|
discovery and initial map setup can take a long time. Allow
|
|
the main program to indicate that the process should be
|
|
interrupted if a shutdown signal was received.
|
|
|
|
We take advantage of the dynamic linker's symbol lookup ordering
|
|
here. The default implementation of should_exit never returns
|
|
true, but callers (like multipathd) can override it.
|
|
|
|
Cc: Chongyun Wu <wu.chongyun@h3c.com>
|
|
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
|
|
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
|
|
---
|
|
libmultipath/configure.c | 6 ++++++
|
|
libmultipath/discovery.c | 3 +++
|
|
libmultipath/util.c | 5 +++++
|
|
libmultipath/util.h | 1 +
|
|
multipathd/main.c | 17 +++++++++++++++++
|
|
5 files changed, 32 insertions(+)
|
|
|
|
diff --git a/libmultipath/configure.c b/libmultipath/configure.c
|
|
index d7afc915..1c8aac08 100644
|
|
--- a/libmultipath/configure.c
|
|
+++ b/libmultipath/configure.c
|
|
@@ -1173,6 +1173,12 @@ int coalesce_paths (struct vectors * vecs, vector newmp, char * refwwid,
|
|
|
|
vector_foreach_slot (pathvec, pp1, k) {
|
|
int invalid;
|
|
+
|
|
+ if (should_exit()) {
|
|
+ ret = CP_FAIL;
|
|
+ goto out;
|
|
+ }
|
|
+
|
|
/* skip this path for some reason */
|
|
|
|
/* 1. if path has no unique id or wwid blacklisted */
|
|
diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
|
|
index c2e1754c..e7084664 100644
|
|
--- a/libmultipath/discovery.c
|
|
+++ b/libmultipath/discovery.c
|
|
@@ -200,6 +200,9 @@ path_discovery (vector pathvec, int flag)
|
|
const char *devtype;
|
|
const char *devpath;
|
|
|
|
+ if (should_exit())
|
|
+ break;
|
|
+
|
|
devpath = udev_list_entry_get_name(entry);
|
|
condlog(4, "Discover device %s", devpath);
|
|
udevice = udev_device_new_from_syspath(udev, devpath);
|
|
diff --git a/libmultipath/util.c b/libmultipath/util.c
|
|
index 1748eafe..1f977792 100644
|
|
--- a/libmultipath/util.c
|
|
+++ b/libmultipath/util.c
|
|
@@ -445,3 +445,8 @@ void _log_bitfield_overflow(const char *f, unsigned int bit, unsigned int len)
|
|
{
|
|
condlog(0, "%s: bitfield overflow: %u >= %u", f, bit, len);
|
|
}
|
|
+
|
|
+int should_exit(void)
|
|
+{
|
|
+ return 0;
|
|
+}
|
|
diff --git a/libmultipath/util.h b/libmultipath/util.h
|
|
index 2b9703ac..ac19473e 100644
|
|
--- a/libmultipath/util.h
|
|
+++ b/libmultipath/util.h
|
|
@@ -27,6 +27,7 @@ int parse_prkey(const char *ptr, uint64_t *prkey);
|
|
int parse_prkey_flags(const char *ptr, uint64_t *prkey, uint8_t *flags);
|
|
int safe_write(int fd, const void *buf, size_t count);
|
|
void set_max_fds(rlim_t max_fds);
|
|
+int should_exit(void);
|
|
|
|
#define KERNEL_VERSION(maj, min, ptc) ((((maj) * 256) + (min)) * 256 + (ptc))
|
|
#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
|
|
diff --git a/multipathd/main.c b/multipathd/main.c
|
|
index eedc6c10..fa53e963 100644
|
|
--- a/multipathd/main.c
|
|
+++ b/multipathd/main.c
|
|
@@ -141,6 +141,11 @@ static inline enum daemon_status get_running_state(void)
|
|
return st;
|
|
}
|
|
|
|
+int should_exit(void)
|
|
+{
|
|
+ return get_running_state() == DAEMON_SHUTDOWN;
|
|
+}
|
|
+
|
|
/*
|
|
* global copy of vecs for use in sig handlers
|
|
*/
|
|
@@ -2570,6 +2575,9 @@ configure (struct vectors * vecs)
|
|
goto fail;
|
|
}
|
|
|
|
+ if (should_exit())
|
|
+ goto fail;
|
|
+
|
|
conf = get_multipath_config();
|
|
pthread_cleanup_push(put_multipath_config, conf);
|
|
vector_foreach_slot (vecs->pathvec, pp, i){
|
|
@@ -2586,6 +2594,9 @@ configure (struct vectors * vecs)
|
|
goto fail;
|
|
}
|
|
|
|
+ if (should_exit())
|
|
+ goto fail;
|
|
+
|
|
/*
|
|
* create new set of maps & push changed ones into dm
|
|
* In the first call, use FORCE_RELOAD_WEAK to avoid making
|
|
@@ -2600,6 +2611,9 @@ configure (struct vectors * vecs)
|
|
goto fail;
|
|
}
|
|
|
|
+ if (should_exit())
|
|
+ goto fail;
|
|
+
|
|
/*
|
|
* may need to remove some maps which are no longer relevant
|
|
* e.g., due to blacklist changes in conf file
|
|
@@ -2611,6 +2625,9 @@ configure (struct vectors * vecs)
|
|
|
|
dm_lib_release();
|
|
|
|
+ if (should_exit())
|
|
+ goto fail;
|
|
+
|
|
sync_maps_state(mpvec);
|
|
vector_foreach_slot(mpvec, mpp, i){
|
|
if (remember_wwid(mpp->wwid) == 1)
|
|
--
|
|
2.17.2
|
|
|