When called from udev the multipath program is used to check
if a device should be handled by multipath. Any new device,
however, will not be present in /etc/multipath/wwids, and
the check will always fail.
This patch implements the option '-i' to multipath to skip
checking the wwids file for these scenarios.
Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
---
libmultipath/config.h | 1 +
multipath/main.c | 18 +++++++++++-------
multipath/multipath.8 | 5 ++++-
3 files changed, 16 insertions(+), 8 deletions(-)
diff --git a/libmultipath/config.h b/libmultipath/config.h
index ac7c58e..ca17f39 100644
--- a/libmultipath/config.h
+++ b/libmultipath/config.h
@@ -106,6 +106,7 @@ struct config {
int max_fds;
int force_reload;
int queue_without_daemon;
+ int ignore_wwids;
int checker_timeout;
int daemon;
#ifdef USE_SYSTEMD
diff --git a/multipath/main.c b/multipath/main.c
index 157475e..fd6262f 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -84,7 +84,7 @@ usage (char * progname)
{
fprintf (stderr, VERSION_STRING);
fprintf (stderr, "Usage:\n");
- fprintf (stderr, " %s [-a|-c|-w|-W] [-d] [-r] [-v lvl] [-p pol] [-b fil] [-q] [dev]\n", progname);
+ fprintf (stderr, " %s [-a|-c|-w|-W] [-d] [-r] [-i] [-v lvl] [-p pol] [-b fil] [-q] [dev]\n", progname);
fprintf (stderr, " %s -l|-ll|-f [-v lvl] [-b fil] [dev]\n", progname);
fprintf (stderr, " %s -F [-v lvl]\n", progname);
fprintf (stderr, " %s -t\n", progname);
@@ -103,6 +103,7 @@ usage (char * progname)
" -d dry run, do not create or update devmaps\n" \
" -t dump internal hardware table\n" \
" -r force devmap reload\n" \
+ " -i ignore wwids file\n" \
" -B treat the bindings file as read only\n" \
" -p policy failover|multibus|group_by_serial|group_by_prio\n" \
" -b fil bindings file location\n" \
@@ -307,12 +308,12 @@ configure (void)
}
condlog(3, "scope limited to %s", refwwid);
if (conf->cmd == CMD_VALID_PATH) {
- if (check_wwids_file(refwwid, 0) == 0){
- printf("%s is a valid multipath device path\n", conf->dev);
+ if (conf->ignore_wwids ||
+ check_wwids_file(refwwid, 0) == 0)
r = 0;
- }
- else
- printf("%s is not a valid multipath device path\n", conf->dev);
+
+ printf("%s %s a valid multipath device path\n",
+ conf->dev, r == 0 ? "is" : "is not");
goto out;
}
}
@@ -445,7 +446,7 @@ main (int argc, char *argv[])
if (load_config(DEFAULT_CONFIGFILE, udev))
exit(1);
- while ((arg = getopt(argc, argv, ":adchl::FfM:v:p:b:BrtqwW")) != EOF ) {
+ while ((arg = getopt(argc, argv, ":adchl::FfM:v:p:b:BritqwW")) != EOF ) {
switch(arg) {
case 1: printf("optarg : %s\n",optarg);
break;
@@ -503,6 +504,9 @@ main (int argc, char *argv[])
case 'r':
conf->force_reload = 1;
break;
+ case 'i':
+ conf->ignore_wwids = 1;
+ break;
case 't':
r = dump_config();
goto out_free_config;
diff --git a/multipath/multipath.8 b/multipath/multipath.8
index b6479b1..13e2e89 100644
--- a/multipath/multipath.8
+++ b/multipath/multipath.8
@@ -8,7 +8,7 @@ multipath \- Device mapper target autoconfig
.RB [\| \-b\ \c
.IR bindings_file \|]
.RB [\| \-d \|]
-.RB [\| \-h | \-l | \-ll | \-f | \-t | \-F | \-B | \-c | \-q | \|-r | \-a | \-w | \-W \|]
+.RB [\| \-h | \-l | \-ll | \-f | \-t | \-F | \-B | \-c | \-q | \|-r | \|-i | \-a | \-w | \-W \|]
.RB [\| \-p\ \c
.BR failover | multibus | group_by_serial | group_by_prio | group_by_node_name \|]
.RB [\| device \|]
@@ -55,6 +55,9 @@ print internal hardware table to stdout
.B \-r
force devmap reload
.TP
+.B \-i
+ignore wwids file when processing devices
+.TP
.B \-B
treat the bindings file as read only
.TP
--
1.8.4.5
--
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