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authorNeil Brown <neilb@notabene.brown>2008-06-28 08:31:29 +1000
committerNeil Brown <neilb@notabene.brown>2008-06-28 08:31:29 +1000
commit8ed0a5216a0238f53b482ec88ce4aeed4b9f0da1 (patch)
tree31383b73c6d471dc8620b0bda044d5d514fd1d8b /drivers/md/md.c
parent1a0fd497733bd029a7d5f2e5c69b1dff715b7792 (diff)
Enable setting of 'offset' and 'size' of a hot-added spare.
offset_store and rdev_size_store allow control of the region of a device which is to be using in an md/raid array. They only allow these values to be set when an array is being assembled, as changing them on an active array could be dangerous. However when adding a spare device to an array, we might need to set the offset and size before starting recovery. So allow these values to be set also if "->raid_disk < 0" which indicates that the device is still a spare. Signed-off-by: Neil Brown <neilb@suse.de>
Diffstat (limited to 'drivers/md/md.c')
-rw-r--r--drivers/md/md.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 9e3ce432e37..3b5cd4ef54f 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1984,7 +1984,7 @@ offset_store(mdk_rdev_t *rdev, const char *buf, size_t len)
unsigned long long offset = simple_strtoull(buf, &e, 10);
if (e==buf || (*e && *e != '\n'))
return -EINVAL;
- if (rdev->mddev->pers)
+ if (rdev->mddev->pers && rdev->raid_disk >= 0)
return -EBUSY;
if (rdev->size && rdev->mddev->external)
/* Must set offset before size, so overlap checks
@@ -2023,7 +2023,7 @@ rdev_size_store(mdk_rdev_t *rdev, const char *buf, size_t len)
if (e==buf || (*e && *e != '\n'))
return -EINVAL;
- if (my_mddev->pers)
+ if (my_mddev->pers && rdev->raid_disk >= 0)
return -EBUSY;
rdev->size = size;
if (size > oldsize && rdev->mddev->external) {