path: root/drivers/md/raid1.c
diff options
authorNeilBrown <>2012-05-21 09:27:00 +1000
committerNeilBrown <>2012-05-21 09:27:00 +1000
commitc6563a8c38fde3c1c7fc925a10bde3ca20799301 (patch)
tree3916ae8247149a9dcf39ee1ca262f97be39071eb /drivers/md/raid1.c
parent2c810cddc44d6f95cef75df3f07fc0850ff92417 (diff)
md: add possibility to change data-offset for devices.
When reshaping we can avoid costly intermediate backup by changing the 'start' address of the array on the device (if there is enough room). So as a first step, allow such a change to be requested through sysfs, and recorded in v1.x metadata. (As we didn't previous check that all 'pad' fields were zero, we need a new FEATURE flag for this. A (belatedly) check that all remaining 'pad' fields are zero to avoid a repeat of this) The new data offset must be requested separately for each device. This allows each to have a different change in the data offset. This is not likely to be used often but as data_offset can be set per-device, new_data_offset should be too. This patch also removes the 'acknowledged' arg to rdev_set_badblocks as it is never used and never will be. At the same time we add a new arg ('in_new') which is currently always zero but will be used more soon. When a reshape finishes we will need to update the data_offset and rdev->sectors. So provide an exported function to do that. Signed-off-by: NeilBrown <>
Diffstat (limited to 'drivers/md/raid1.c')
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 15dd59b84e94..71a7dc038a82 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2024,7 +2024,7 @@ static void handle_sync_write_finished(struct r1conf *conf, struct r1bio *r1_bio
if (test_bit(BIO_UPTODATE, &bio->bi_flags) &&
test_bit(R1BIO_MadeGood, &r1_bio->state)) {
- rdev_clear_badblocks(rdev, r1_bio->sector, s);
+ rdev_clear_badblocks(rdev, r1_bio->sector, s, 0);
if (!test_bit(BIO_UPTODATE, &bio->bi_flags) &&
test_bit(R1BIO_WriteError, &r1_bio->state)) {
@@ -2044,7 +2044,7 @@ static void handle_write_finished(struct r1conf *conf, struct r1bio *r1_bio)
struct md_rdev *rdev = conf->mirrors[m].rdev;
- r1_bio->sectors);
+ r1_bio->sectors, 0);
rdev_dec_pending(rdev, conf->mddev);
} else if (r1_bio->bios[m] != NULL) {
/* This drive got a write error. We need to