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-rw-r--r--drivers/md/raid1.c52
1 files changed, 35 insertions, 17 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 15dd59b84e9..cacd008d686 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -517,8 +517,8 @@ static int read_balance(struct r1conf *conf, struct r1bio *r1_bio, int *max_sect
int bad_sectors;
int disk = start_disk + i;
- if (disk >= conf->raid_disks)
- disk -= conf->raid_disks;
+ if (disk >= conf->raid_disks * 2)
+ disk -= conf->raid_disks * 2;
rdev = rcu_dereference(conf->mirrors[disk].rdev);
if (r1_bio->bios[disk] == IO_BLOCKED
@@ -883,7 +883,6 @@ static void make_request(struct mddev *mddev, struct bio * bio)
const unsigned long do_sync = (bio->bi_rw & REQ_SYNC);
const unsigned long do_flush_fua = (bio->bi_rw & (REQ_FLUSH | REQ_FUA));
struct md_rdev *blocked_rdev;
- int plugged;
int first_clone;
int sectors_handled;
int max_sectors;
@@ -1034,7 +1033,6 @@ read_again:
* the bad blocks. Each set of writes gets it's own r1bio
* with a set of bios attached.
*/
- plugged = mddev_check_plugged(mddev);
disks = conf->raid_disks * 2;
retry_write:
@@ -1191,6 +1189,8 @@ read_again:
bio_list_add(&conf->pending_bio_list, mbio);
conf->pending_count++;
spin_unlock_irqrestore(&conf->device_lock, flags);
+ if (!mddev_check_plugged(mddev))
+ md_wakeup_thread(mddev->thread);
}
/* Mustn't call r1_bio_write_done before this next test,
* as it could result in the bio being freed.
@@ -1213,9 +1213,6 @@ read_again:
/* In case raid1d snuck in to freeze_array */
wake_up(&conf->wait_barrier);
-
- if (do_sync || !bitmap || !plugged)
- md_wakeup_thread(mddev->thread);
}
static void status(struct seq_file *seq, struct mddev *mddev)
@@ -1821,8 +1818,14 @@ static void sync_request_write(struct mddev *mddev, struct r1bio *r1_bio)
if (atomic_dec_and_test(&r1_bio->remaining)) {
/* if we're here, all write(s) have completed, so clean up */
- md_done_sync(mddev, r1_bio->sectors, 1);
- put_buf(r1_bio);
+ int s = r1_bio->sectors;
+ if (test_bit(R1BIO_MadeGood, &r1_bio->state) ||
+ test_bit(R1BIO_WriteError, &r1_bio->state))
+ reschedule_retry(r1_bio);
+ else {
+ put_buf(r1_bio);
+ md_done_sync(mddev, s, 1);
+ }
}
}
@@ -1859,7 +1862,9 @@ static void fix_read_error(struct r1conf *conf, int read_disk,
rdev = conf->mirrors[d].rdev;
if (rdev &&
- test_bit(In_sync, &rdev->flags) &&
+ (test_bit(In_sync, &rdev->flags) ||
+ (!test_bit(Faulty, &rdev->flags) &&
+ rdev->recovery_offset >= sect + s)) &&
is_badblock(rdev, sect, s,
&first_bad, &bad_sectors) == 0 &&
sync_page_io(rdev, sect, s<<9,
@@ -2024,7 +2029,7 @@ static void handle_sync_write_finished(struct r1conf *conf, struct r1bio *r1_bio
continue;
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 +2049,7 @@ static void handle_write_finished(struct r1conf *conf, struct r1bio *r1_bio)
struct md_rdev *rdev = conf->mirrors[m].rdev;
rdev_clear_badblocks(rdev,
r1_bio->sector,
- 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
@@ -2486,9 +2491,10 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipp
*/
if (test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) {
atomic_set(&r1_bio->remaining, read_targets);
- for (i = 0; i < conf->raid_disks * 2; i++) {
+ for (i = 0; i < conf->raid_disks * 2 && read_targets; i++) {
bio = r1_bio->bios[i];
if (bio->bi_end_io == end_sync_read) {
+ read_targets--;
md_sync_acct(bio->bi_bdev, nr_sectors);
generic_make_request(bio);
}
@@ -2548,6 +2554,7 @@ static struct r1conf *setup_conf(struct mddev *mddev)
err = -EINVAL;
spin_lock_init(&conf->device_lock);
rdev_for_each(rdev, mddev) {
+ struct request_queue *q;
int disk_idx = rdev->raid_disk;
if (disk_idx >= mddev->raid_disks
|| disk_idx < 0)
@@ -2560,6 +2567,9 @@ static struct r1conf *setup_conf(struct mddev *mddev)
if (disk->rdev)
goto abort;
disk->rdev = rdev;
+ q = bdev_get_queue(rdev->bdev);
+ if (q->merge_bvec_fn)
+ mddev->merge_check_needed = 1;
disk->head_position = 0;
}
@@ -2598,7 +2608,8 @@ static struct r1conf *setup_conf(struct mddev *mddev)
if (!disk->rdev ||
!test_bit(In_sync, &disk->rdev->flags)) {
disk->head_position = 0;
- if (disk->rdev)
+ if (disk->rdev &&
+ (disk->rdev->saved_raid_disk < 0))
conf->fullsync = 1;
} else if (conf->last_used < 0)
/*
@@ -2614,7 +2625,7 @@ static struct r1conf *setup_conf(struct mddev *mddev)
goto abort;
}
err = -ENOMEM;
- conf->thread = md_register_thread(raid1d, mddev, NULL);
+ conf->thread = md_register_thread(raid1d, mddev, "raid1");
if (!conf->thread) {
printk(KERN_ERR
"md/raid1:%s: couldn't allocate thread\n",
@@ -2750,9 +2761,16 @@ static int raid1_resize(struct mddev *mddev, sector_t sectors)
* any io in the removed space completes, but it hardly seems
* worth it.
*/
- md_set_array_sectors(mddev, raid1_size(mddev, sectors, 0));
- if (mddev->array_sectors > raid1_size(mddev, sectors, 0))
+ sector_t newsize = raid1_size(mddev, sectors, 0);
+ if (mddev->external_size &&
+ mddev->array_sectors > newsize)
return -EINVAL;
+ if (mddev->bitmap) {
+ int ret = bitmap_resize(mddev->bitmap, newsize, 0, 0);
+ if (ret)
+ return ret;
+ }
+ md_set_array_sectors(mddev, newsize);
set_capacity(mddev->gendisk, mddev->array_sectors);
revalidate_disk(mddev->gendisk);
if (sectors > mddev->dev_sectors &&
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-02-09 17:51:48 +0000