diff options
| author |   NeilBrown <neilb@suse.de> | 2011-12-23 10:17:55 +1100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2011-12-23 10:17:55 +1100 |
| commit | 56a2559bb654ae2555b2ae3b29c837615d0c45c9 (patch) | |
| tree | f90a0d605260f668ad13af654f7951bcb27dfe64 /drivers/md | |
| parent | md/raid10: Allow replacement device to be replace old drive. (diff) | |
| download | linux-dev-56a2559bb654ae2555b2ae3b29c837615d0c45c9.tar.xz linux-dev-56a2559bb654ae2555b2ae3b29c837615d0c45c9.zip | |
md/raid10: recognise replacements when assembling array.
If a Replacement is seen, file it as such.
If we see two replacements (or two normal devices) for the one slot,
abort.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/raid10.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 90e951730a23..011827d0df25 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -3201,6 +3201,16 @@ static int run(struct mddev *mddev) continue; disk = conf->mirrors + disk_idx; + if (test_bit(Replacement, &rdev->flags)) { + if (disk->replacement) + goto out_free_conf; + disk->replacement = rdev; + } else { + if (disk->rdev) + goto out_free_conf; + disk->rdev = rdev; + } + disk->rdev = rdev; disk_stack_limits(mddev->gendisk, rdev->bdev, rdev->data_offset << 9); @@ -3228,6 +3238,13 @@ static int run(struct mddev *mddev) disk = conf->mirrors + i; + if (!disk->rdev && disk->replacement) { + /* The replacement is all we have - use it */ + disk->rdev = disk->replacement; + disk->replacement = NULL; + clear_bit(Replacement, &disk->rdev->flags); + } + if (!disk->rdev || !test_bit(In_sync, &disk->rdev->flags)) { disk->head_position = 0; |