File 0112-Incremental-Remove-redundant-spare-movemen... of Package mdadm.28825

Overview Repositories Revisions Requests Users Attributes Meta

File 0112-Incremental-Remove-redundant-spare-movement-logic.patch of Package mdadm.28825

From 69068584f9ed68b8b2736287a1c9863e11b741d5 Mon Sep 17 00:00:00 2001
From: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
Date: Fri, 11 Dec 2020 12:28:38 +0100
Subject: [PATCH 1/2] Incremental: Remove redundant spare movement logic
Git-commit: 69068584f9ed68b8b2736287a1c9863e11b741d5
References: jsc#SLE-13700, bsc#1180220

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>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
Signed-off-by: Coly Li <colyli@suse.de>

---
 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;
 }
 
-- 
2.26.2

Places

File 0112-Incremental-Remove-redundant-spare-movement-logic.patch of Package mdadm.28825

Places