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authorNeilBrown <neilb@suse.de>2011-12-23 10:17:51 +1100
committerNeilBrown <neilb@suse.de>2011-12-23 10:17:51 +1100
commitb8321b68d1445f308324517e45fb0a5c2b48e271 (patch)
tree3fc4c9b253435753d2154d9bd697a7869163c29a /drivers/md/multipath.c
parent476a7abb9b00adfe6bf70e82800367319ab8078b (diff)
md: change hot_remove_disk to take an rdev rather than a number.
Soon an array will be able to have multiple devices with the same raid_disk number (an original and a replacement). So removing a device based on the number won't work. So pass the actual device handle instead. Reviewed-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/multipath.c')
-rw-r--r--drivers/md/multipath.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index 5899246fa37..a222f516660 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -292,17 +292,16 @@ static int multipath_add_disk(struct mddev *mddev, struct md_rdev *rdev)
return err;
}
-static int multipath_remove_disk(struct mddev *mddev, int number)
+static int multipath_remove_disk(struct mddev *mddev, struct md_rdev *rdev)
{
struct mpconf *conf = mddev->private;
int err = 0;
- struct md_rdev *rdev;
+ int number = rdev->raid_disk;
struct multipath_info *p = conf->multipaths + number;
print_multipath_conf(conf);
- rdev = p->rdev;
- if (rdev) {
+ if (rdev == p->rdev) {
if (test_bit(In_sync, &rdev->flags) ||
atomic_read(&rdev->nr_pending)) {
printk(KERN_ERR "hot-remove-disk, slot %d is identified"