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DDF: when first activating an array, record any missing devices. 

We must remember they are missing so that if they re-appear we
don't get confused.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2014-03-26 14:26:53 +11:00
parent eba2859f50
commit 5a46fcd7f5
1 changed files with 28 additions and 0 deletions
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28
super-ddf.c
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@ -511,6 +511,8 @@ static void pr_state(const struct ddf_super *ddf, const char *msg) {}
static void _ddf_set_updates_pending(struct ddf_super *ddf, const char *func)
{
if (ddf->updates_pending)
return;
ddf->updates_pending = 1;
ddf->active->seq = cpu_to_be32((be32_to_cpu(ddf->active->seq)+1));
pr_state(ddf, func);
@ -4114,6 +4116,31 @@ static int ddf_open_new(struct supertype *c, struct active_array *a, char *inst)
return 0;
}
static void handle_missing(struct ddf_super *ddf, int inst)
{
/* This member array is being activated. If any devices
* are missing they must now be marked as failed.
*/
struct vd_config *vc;
unsigned int n_bvd;
struct vcl *vcl;
struct dl *dl;
int n;
for (n = 0; ; n++) {
vc = find_vdcr(ddf, inst, n, &n_bvd, &vcl);
if (!vc)
break;
for (dl = ddf->dlist; dl; dl = dl->next)
if (be32_eq(dl->disk.refnum, vc->phys_refnum[n_bvd]))
break;
if (dl)
/* Found this disk, so not missing */
continue;
vc->phys_refnum[n_bvd] = cpu_to_be32(0);
}
}
/*
* The array 'a' is to be marked clean in the metadata.
* If '->resync_start' is not ~(unsigned long long)0, then the array is only
@ -4129,6 +4156,7 @@ static int ddf_set_array_state(struct active_array *a, int consistent)
int inst = a->info.container_member;
int old = ddf->virt->entries[inst].state;
if (consistent == 2) {
handle_missing(ddf, inst);
/* Should check if a recovery should be started FIXME */
consistent = 1;
if (!is_resync_complete(&a->info))