[PATCH] Incremental: Remove redundant spare movement logic

[PATCH] Incremental: Remove redundant spare movement logic

[Mariusz Tkaczyk]

If policy is set then mdmonitor is responsible for moving spares.
This logic is reduntant and potentialy dangerus, spare could be moved at
initrd stage depending on drives appearance order.

Remove it.

Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
---
 Incremental.c | 62 ---------------------------------------------------
 1 file changed, 62 deletions(-)

diff --git a/Incremental.c b/Incremental.c
index ad9ec1c..e849bdd 100644
--- a/Incremental.c
+++ b/Incremental.c
@@ -1460,12 +1460,6 @@ static int Incremental_container(struct supertype *st, char *devname,
 	int trustworthy;
 	struct mddev_ident *match;
 	int rv = 0;
-	struct domainlist *domains;
-	struct map_ent *smp;
-	int suuid[4];
-	int sfd;
-	int ra_blocked = 0;
-	int ra_all = 0;
 	int result = 0;
 
 	st->ss->getinfo_super(st, &info, NULL);
@@ -1509,12 +1503,10 @@ static int Incremental_container(struct supertype *st, char *devname,
 		struct map_ent *mp;
 		struct mddev_ident *match = NULL;
 
-		ra_all++;
 		/* do not activate arrays blocked by metadata handler */
 		if (ra->array.state & (1 << MD_SB_BLOCK_VOLUME)) {
 			pr_err("Cannot activate array %s in %s.\n",
 				ra->text_version, devname);
-			ra_blocked++;
 			continue;
 		}
 		mp = map_by_uuid(&map, ra->uuid);
@@ -1617,60 +1609,6 @@ static int Incremental_container(struct supertype *st, char *devname,
 		}
 		printf("\n");
 	}
-
-	/* don't move spares to container with volume being activated
-	   when all volumes are blocked */
-	if (ra_all == ra_blocked)
-		return 0;
-
-	/* Now move all suitable spares from spare container */
-	domains = domain_from_array(list, st->ss->name);
-	memcpy(suuid, uuid_zero, sizeof(int[4]));
-	if (domains &&
-	    (smp = map_by_uuid(&map, suuid)) != NULL &&
-	    (sfd = open(smp->path, O_RDONLY)) >= 0) {
-		/* spare container found */
-		struct supertype *sst =
-			super_imsm.match_metadata_desc("imsm");
-		struct mdinfo *sinfo;
-
-		if (!sst->ss->load_container(sst, sfd, NULL)) {
-			struct spare_criteria sc = {0, 0};
-
-			if (st->ss->get_spare_criteria)
-				st->ss->get_spare_criteria(st, &sc);
-
-			close(sfd);
-			sinfo = container_choose_spares(sst, &sc,
-							domains, NULL,
-							st->ss->name, 0);
-			sst->ss->free_super(sst);
-			if (sinfo){
-				int count = 0;
-				struct mdinfo *disks = sinfo->devs;
-				while (disks) {
-					/* move spare from spare
-					 * container to currently
-					 * assembled one
-					 */
-					if (move_spare(
-						    smp->path,
-						    devname,
-						    makedev(disks->disk.major,
-							    disks->disk.minor)))
-						count++;
-					disks = disks->next;
-				}
-				if (count)
-					pr_err("Added %d spare%s to %s\n",
-					       count, count>1?"s":"", devname);
-			}
-			sysfs_free(sinfo);
-		} else
-			close(sfd);
-	}
-	domain_free(domains);
-	map_free(map);
 	return 0;
 }
 
-- 
2.25.0

Re: [PATCH] Incremental: Remove redundant spare movement logic

[Jes Sorensen]

On 12/11/20 6:28 AM, Mariusz Tkaczyk wrote:
> If policy is set then mdmonitor is responsible for moving spares.
> This logic is reduntant and potentialy dangerus, spare could be moved at
> initrd stage depending on drives appearance order.
> 
> Remove it.
> 
> Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>

Applied!

Thanks,
Jes