d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

(g_multipath_rotate): Fix algorithm so that it does rotate over all good

Browse Source 
providers, not just the last two.

PR:		kern/170379
Reviewed by:	mav
MFC after:	2 weeks
This commit is contained in:
thomas 2012-08-25 10:36:31 +00:00
parent 4952c1e53e
commit d5129fde3c
1 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
sys/geom/multipath/g_multipath.c
View File

@ -590,19 +590,26 @@ g_multipath_destroy_geom(struct gctl_req *req, struct g_class *mp,
static int
g_multipath_rotate(struct g_geom *gp)
{
struct g_consumer *lcp;
struct g_consumer *lcp, *first_good_cp = NULL;
struct g_multipath_softc *sc = gp->softc;
int active_cp_seen = 0;
g_topology_assert();
if (sc == NULL)
return (ENXIO);
LIST_FOREACH(lcp, &gp->consumer, consumer) {
if ((lcp->index & MP_BAD) == 0) {
if (sc->sc_active != lcp)
if (first_good_cp == NULL)
first_good_cp = lcp;
if (active_cp_seen)
break;
}
if (sc->sc_active == lcp)
active_cp_seen = 1;
}
if (lcp) {
if (lcp == NULL)
lcp = first_good_cp;
if (lcp && lcp != sc->sc_active) {
sc->sc_active = lcp;
if (sc->sc_active_active != 1)
printf("GEOM_MULTIPATH: %s is now active path in %s\n",