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| author | Neil Brown <neilb@notabene.brown> | 2008-06-28 08:31:31 +1000 |
|---|---|---|
| committer | Neil Brown <neilb@notabene.brown> | 2008-06-28 08:31:31 +1000 |
| commit | 6c2fce2ef6b4821c21b5c42c7207cb9cf8c87eda (patch) | |
| tree | 726b16f46c039df387f7cdfe0d195821d8955532 /drivers/md/multipath.c | |
| parent | 8ed0a5216a0238f53b482ec88ce4aeed4b9f0da1 (diff) | |
| download | lwn-6c2fce2ef6b4821c21b5c42c7207cb9cf8c87eda.tar.gz lwn-6c2fce2ef6b4821c21b5c42c7207cb9cf8c87eda.zip | |
Support adding a spare to a live md array with external metadata.
i.e. extend the 'md/dev-XXX/slot' attribute so that you can
tell a device to fill an vacant slot in an and md array.
Signed-off-by: Neil Brown <neilb@suse.de>
Diffstat (limited to 'drivers/md/multipath.c')
| -rw-r--r-- | drivers/md/multipath.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index e968116e0de9..4a1d714c048e 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -284,10 +284,15 @@ static int multipath_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) int found = 0; int path; struct multipath_info *p; + int first = 0; + int last = mddev->raid_disks - 1; + + if (rdev->raid_disk >= 0) + first = last = rdev->raid_disk; print_multipath_conf(conf); - for (path=0; path<mddev->raid_disks; path++) + for (path = first; path <= last; path++) if ((p=conf->multipaths+path)->rdev == NULL) { q = rdev->bdev->bd_disk->queue; blk_queue_stack_limits(mddev->queue, q); |