>From 662b22b7f7309e7dc71c17bf5ec20d11a290d96c Mon Sep 17 00:00:00 2001
From: Anna Czarnowska <anna.czarnowska@xxxxxxxxx>
Date: Fri, 23 Jul 2010 19:30:52 +0100
Subject: [PATCH 27/35] Monitor: added function move_spare
For spare sharing. We try to remove spare from one array/container and
add to another. If add fails we add back to original container.
Signed-off-by: Anna Czarnowska <anna.czarnowska@xxxxxxxxx>
---
Monitor.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 56 insertions(+), 0 deletions(-)
diff --git a/Monitor.c b/Monitor.c
index a66a9ee..6a203c3 100644
--- a/Monitor.c
+++ b/Monitor.c
@@ -595,6 +595,62 @@ fail:
return 0;
}
+int move_spare(struct state *st2, struct state *st1, int i,
+ char *mailaddr, char *mailfrom, char *alert_cmd,
+ int dosyslog)
+
+{
+ struct mddev_dev_s devlist;
+ char devname[20];
+ int from_fd, to_fd;
+ if (!st1 || !st2 || st2->devid[i] == 0)
+ return 0;
+ from_fd = open(st2->devname, O_RDONLY);
+ if (from_fd < 0)
+ return 0;
+ to_fd = open(st1->devname, O_RDONLY);
+ if (to_fd < 0) {
+ close(from_fd);
+ return 0;
+ }
+ devlist.next = NULL;
+ devlist.used = 0;
+ devlist.re_add = 0;
+ devlist.writemostly = 0;
+ devlist.devname = devname;
+ char *dv = map_dev(major(st2->devid[i]), minor(st2->devid[i]), 1);
+ if (!dv) {
+ close(from_fd);
+ close(to_fd);
+ return 0;
+ }
+ snprintf(devname, 20, "%s", dv);
+ devlist.disposition = 'r';
+ if (Manage_subdevs(st2->devname, from_fd, &devlist, -1) == 0) {
+ devlist.disposition = 'a';
+ if (Manage_subdevs(st1->devname, to_fd, &devlist,
+ -1) == 0) {
+ st2->devid[i] = 0;
+ ping_manager(st2->devname);
+ ping_manager(st1->devname);
+ alert("MoveSpare", st1->devname, st2->devname,
+ mailaddr, mailfrom, alert_cmd, dosyslog);
+ close(from_fd);
+ close(to_fd);
+ return 1;
+ } else if (Manage_subdevs(st2->devname, from_fd,
+ &devlist, -1) != 0)
+ fprintf(stderr,
+ "Error: Adding back spare device"
+ "%s to container %s failed!\n",
+ st2->devname, dv);
+ }
+ /* Failed to add spare to new container */
+ close(from_fd);
+ close(to_fd);
+ return 0;
+}
+
/* get states of all disks in each container from metadata*/
int getinfo_containers(struct state *statelist)
{
--
1.6.4.2
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