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From 8191fb07d8212e29ad44370abb60e174e1c34bb5 Mon Sep 17 00:00:00 2001
From: Fabio M. Di Nitto <fdinitto@redhat.com>
Date: Tue, 13 Oct 2009 08:15:15 +0200
Subject: [PATCH 01/12] RH: queue without daemon
Signed-off-by: Fabio M. Di Nitto <fdinitto@redhat.com>
---
:100644 100644 50a728c... 86b1320... M libmultipath/config.h
:100644 100644 ee4de68... 7888e8e... M libmultipath/dict.c
:100644 100644 afd1246... 2e7a0d1... M libmultipath/structs.h
:100644 100644 c222da4... 9afa615... M multipath.conf.annotated
:100644 100644 3e0fd6e... 44d1329... M multipath.conf.synthetic
:100644 100644 41a9bd0... 90de6df... M multipathd/main.c
libmultipath/config.h | 1 +
libmultipath/dict.c | 35 +++++++++++++++++++++++++++++++++++
libmultipath/structs.h | 6 ++++++
multipath.conf.annotated | 9 +++++++++
multipath.conf.synthetic | 1 +
multipathd/main.c | 5 +++++
6 files changed, 57 insertions(+), 0 deletions(-)
diff --git a/libmultipath/config.h b/libmultipath/config.h
index 50a728c..86b1320 100644
--- a/libmultipath/config.h
+++ b/libmultipath/config.h
@@ -72,6 +72,7 @@ struct config {
int pg_timeout;
int max_fds;
int force_reload;
+ int queue_without_daemon;
int daemon;
int flush_on_last_del;
int attribute_flags;
diff --git a/libmultipath/dict.c b/libmultipath/dict.c
index ee4de68..7888e8e 100644
--- a/libmultipath/dict.c
+++ b/libmultipath/dict.c
@@ -333,6 +333,28 @@ def_no_path_retry_handler(vector strvec)
}
static int
+def_queue_without_daemon(vector strvec)
+{
+ char * buff;
+
+ buff = set_value(strvec);
+ if (!buff)
+ return 1;
+
+ if (!strncmp(buff, "off", 3) || !strncmp(buff, "no", 2) ||
+ !strncmp(buff, "0", 1))
+ conf->queue_without_daemon = QUE_NO_DAEMON_OFF;
+ else if (!strncmp(buff, "on", 2) || !strncmp(buff, "yes", 3) ||
+ !strncmp(buff, "1", 1))
+ conf->queue_without_daemon = QUE_NO_DAEMON_ON;
+ else
+ conf->queue_without_daemon = QUE_NO_DAEMON_UNDEF;
+
+ free(buff);
+ return 0;
+}
+
+static int
def_pg_timeout_handler(vector strvec)
{
int pg_timeout;
@@ -1846,6 +1868,18 @@ snprint_def_no_path_retry (char * buff, int len, void * data)
}
static int
+snprint_def_queue_without_daemon (char * buff, int len, void * data)
+{
+ switch (conf->queue_without_daemon) {
+ case QUE_NO_DAEMON_OFF:
+ return snprintf(buff, len, "no");
+ case QUE_NO_DAEMON_ON:
+ return snprintf(buff, len, "yes");
+ }
+ return 0;
+}
+
+static int
snprint_def_pg_timeout (char * buff, int len, void * data)
{
if (conf->pg_timeout == DEFAULT_PGTIMEOUT)
@@ -1931,6 +1965,7 @@ init_keywords(void)
install_keyword("max_fds", &max_fds_handler, &snprint_max_fds);
install_keyword("rr_weight", &def_weight_handler, &snprint_def_rr_weight);
install_keyword("no_path_retry", &def_no_path_retry_handler, &snprint_def_no_path_retry);
+ install_keyword("queue_without_daemon", &def_queue_without_daemon, &snprint_def_queue_without_daemon);
install_keyword("pg_timeout", &def_pg_timeout_handler, &snprint_def_pg_timeout);
install_keyword("flush_on_last_del", &def_flush_on_last_del_handler, &snprint_def_flush_on_last_del);
install_keyword("user_friendly_names", &names_handler, &snprint_def_user_friendly_names);
diff --git a/libmultipath/structs.h b/libmultipath/structs.h
index afd1246..2e7a0d1 100644
--- a/libmultipath/structs.h
+++ b/libmultipath/structs.h
@@ -63,6 +63,12 @@ enum pgstates {
PGSTATE_ACTIVE
};
+enum queue_without_daemon_states {
+ QUE_NO_DAEMON_UNDEF,
+ QUE_NO_DAEMON_OFF,
+ QUE_NO_DAEMON_ON,
+};
+
enum pgtimeouts {
PGTIMEOUT_UNDEF,
PGTIMEOUT_NONE
diff --git a/multipath.conf.annotated b/multipath.conf.annotated
index c222da4..9afa615 100644
--- a/multipath.conf.annotated
+++ b/multipath.conf.annotated
@@ -153,6 +153,15 @@
# no_path_retry queue
#
# #
+# # name : queue_without_daemon
+# # scope : multipathd
+# # desc : If set to "no", multipathd will disable queueing for all
+# # devices when it is shut down.
+# # values : yes|no
+# # default : yes
+# queue_without_daemon no
+#
+# #
# # name : user_friendly_names
# # scope : multipath
# # desc : If set to "yes", using the bindings file
diff --git a/multipath.conf.synthetic b/multipath.conf.synthetic
index 3e0fd6e..44d1329 100644
--- a/multipath.conf.synthetic
+++ b/multipath.conf.synthetic
@@ -16,6 +16,7 @@
# rr_weight priorities
# failback immediate
# no_path_retry fail
+# queue_without_daemon no
# user_friendly_names no
# mode 644
# uid 0
diff --git a/multipathd/main.c b/multipathd/main.c
index 41a9bd0..90de6df 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -1334,6 +1334,8 @@ child (void * param)
pthread_t check_thr, uevent_thr, uxlsnr_thr;
pthread_attr_t log_attr, misc_attr;
struct vectors * vecs;
+ struct multipath * mpp;
+ int i;
mlockall(MCL_CURRENT | MCL_FUTURE);
@@ -1422,6 +1424,9 @@ child (void * param)
*/
block_signal(SIGHUP, NULL);
lock(vecs->lock);
+ if (conf->queue_without_daemon == QUE_NO_DAEMON_OFF)
+ vector_foreach_slot(vecs->mpvec, mpp, i)
+ dm_queue_if_no_path(mpp->alias, 0);
remove_maps_and_stop_waiters(vecs);
free_pathvec(vecs->pathvec, FREE_PATHS);
--
1.6.5.1
|
