/* allocate a r1bio with room for raid_disks entries in the bios array */
r1_bio = kzalloc(size, gfp_flags);
- if (!r1_bio)
+ if (!r1_bio && pi->mddev)
unplug_slaves(pi->mddev);
return r1_bio;
conf_t *conf = mddev->private;
int i, ret = 0;
+ if (mddev_congested(mddev, bits))
+ return 1;
+
rcu_read_lock();
for (i = 0; i < mddev->raid_disks; i++) {
mdk_rdev_t *rdev = rcu_dereference(conf->mirrors[i].rdev);
struct bio_list bl;
struct page **behind_pages = NULL;
const int rw = bio_data_dir(bio);
- const int do_sync = bio_sync(bio);
- int cpu, do_barriers;
+ const bool do_sync = bio_rw_flagged(bio, BIO_RW_SYNCIO);
+ int cpu;
+ bool do_barriers;
mdk_rdev_t *blocked_rdev;
/*
md_write_start(mddev, bio); /* wait on superblock update early */
- if (unlikely(!mddev->barriers_work && bio_barrier(bio))) {
+ if (unlikely(!mddev->barriers_work &&
+ bio_rw_flagged(bio, BIO_RW_BARRIER))) {
if (rw == WRITE)
md_write_end(mddev);
bio_endio(bio, -EOPNOTSUPP);
read_bio->bi_sector = r1_bio->sector + mirror->rdev->data_offset;
read_bio->bi_bdev = mirror->rdev->bdev;
read_bio->bi_end_io = raid1_end_read_request;
- read_bio->bi_rw = READ | do_sync;
+ read_bio->bi_rw = READ | (do_sync << BIO_RW_SYNCIO);
read_bio->bi_private = r1_bio;
generic_make_request(read_bio);
atomic_set(&r1_bio->remaining, 0);
atomic_set(&r1_bio->behind_remaining, 0);
- do_barriers = bio_barrier(bio);
+ do_barriers = bio_rw_flagged(bio, BIO_RW_BARRIER);
if (do_barriers)
set_bit(R1BIO_Barrier, &r1_bio->state);
mbio->bi_sector = r1_bio->sector + conf->mirrors[i].rdev->data_offset;
mbio->bi_bdev = conf->mirrors[i].rdev->bdev;
mbio->bi_end_io = raid1_end_write_request;
- mbio->bi_rw = WRITE | do_barriers | do_sync;
+ mbio->bi_rw = WRITE | (do_barriers << BIO_RW_BARRIER) |
+ (do_sync << BIO_RW_SYNCIO);
mbio->bi_private = r1_bio;
if (behind_pages) {
* We already have a nr_pending reference on these rdevs.
*/
int i;
- const int do_sync = bio_sync(r1_bio->master_bio);
+ const bool do_sync = bio_rw_flagged(r1_bio->master_bio, BIO_RW_SYNCIO);
clear_bit(R1BIO_BarrierRetry, &r1_bio->state);
clear_bit(R1BIO_Barrier, &r1_bio->state);
for (i=0; i < conf->raid_disks; i++)
conf->mirrors[i].rdev->data_offset;
bio->bi_bdev = conf->mirrors[i].rdev->bdev;
bio->bi_end_io = raid1_end_write_request;
- bio->bi_rw = WRITE | do_sync;
+ bio->bi_rw = WRITE |
+ (do_sync << BIO_RW_SYNCIO);
bio->bi_private = r1_bio;
r1_bio->bios[i] = bio;
generic_make_request(bio);
r1_bio->sector,
r1_bio->sectors);
unfreeze_array(conf);
- }
+ } else
+ md_error(mddev,
+ conf->mirrors[r1_bio->read_disk].rdev);
bio = r1_bio->bios[r1_bio->read_disk];
- if ((disk=read_balance(conf, r1_bio)) == -1 ||
- disk == r1_bio->read_disk) {
+ if ((disk=read_balance(conf, r1_bio)) == -1) {
printk(KERN_ALERT "raid1: %s: unrecoverable I/O"
" read error for block %llu\n",
bdevname(bio->bi_bdev,b),
(unsigned long long)r1_bio->sector);
raid_end_bio_io(r1_bio);
} else {
- const int do_sync = bio_sync(r1_bio->master_bio);
+ const bool do_sync = bio_rw_flagged(r1_bio->master_bio, BIO_RW_SYNCIO);
r1_bio->bios[r1_bio->read_disk] =
mddev->ro ? IO_BLOCKED : NULL;
r1_bio->read_disk = disk;
bio->bi_sector = r1_bio->sector + rdev->data_offset;
bio->bi_bdev = rdev->bdev;
bio->bi_end_io = raid1_end_read_request;
- bio->bi_rw = READ | do_sync;
+ bio->bi_rw = READ | (do_sync << BIO_RW_SYNCIO);
bio->bi_private = r1_bio;
unplug = 1;
generic_make_request(bio);
}
}
+ cond_resched();
}
if (unplug)
unplug_slaves(mddev);
conf->poolinfo = kmalloc(sizeof(*conf->poolinfo), GFP_KERNEL);
if (!conf->poolinfo)
goto out_no_mem;
- conf->poolinfo->mddev = mddev;
+ conf->poolinfo->mddev = NULL;
conf->poolinfo->raid_disks = mddev->raid_disks;
conf->r1bio_pool = mempool_create(NR_RAID1_BIOS, r1bio_pool_alloc,
r1bio_pool_free,
conf->poolinfo);
if (!conf->r1bio_pool)
goto out_no_mem;
+ conf->poolinfo->mddev = mddev;
spin_lock_init(&conf->device_lock);
mddev->queue->queue_lock = &conf->device_lock;
conf->last_used = j;
- mddev->thread = md_register_thread(raid1d, mddev, "%s_raid1");
+ mddev->thread = md_register_thread(raid1d, mddev, NULL);
if (!mddev->thread) {
printk(KERN_ERR
"raid1: couldn't allocate thread for %s\n",