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Diffstat (limited to 'drivers/md/bcache/super.c')
-rw-r--r--drivers/md/bcache/super.c27
1 files changed, 19 insertions, 8 deletions
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index b4d28928dec5..133b81225ea9 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -211,7 +211,7 @@ static void write_bdev_super_endio(struct bio *bio)
static void __write_super(struct cache_sb *sb, struct bio *bio)
{
- struct cache_sb *out = page_address(bio->bi_io_vec[0].bv_page);
+ struct cache_sb *out = page_address(bio_first_page_all(bio));
unsigned i;
bio->bi_iter.bi_sector = SB_SECTOR;
@@ -274,7 +274,9 @@ static void write_super_endio(struct bio *bio)
{
struct cache *ca = bio->bi_private;
- bch_count_io_errors(ca, bio->bi_status, "writing superblock");
+ /* is_read = 0 */
+ bch_count_io_errors(ca, bio->bi_status, 0,
+ "writing superblock");
closure_put(&ca->set->sb_write);
}
@@ -721,6 +723,9 @@ static void bcache_device_attach(struct bcache_device *d, struct cache_set *c,
d->c = c;
c->devices[id] = d;
+ if (id >= c->devices_max_used)
+ c->devices_max_used = id + 1;
+
closure_get(&c->caching);
}
@@ -906,6 +911,12 @@ static void cached_dev_detach_finish(struct work_struct *w)
mutex_lock(&bch_register_lock);
+ cancel_delayed_work_sync(&dc->writeback_rate_update);
+ if (!IS_ERR_OR_NULL(dc->writeback_thread)) {
+ kthread_stop(dc->writeback_thread);
+ dc->writeback_thread = NULL;
+ }
+
memset(&dc->sb.set_uuid, 0, 16);
SET_BDEV_STATE(&dc->sb, BDEV_STATE_NONE);
@@ -1166,7 +1177,7 @@ static void register_bdev(struct cache_sb *sb, struct page *sb_page,
dc->bdev->bd_holder = dc;
bio_init(&dc->sb_bio, dc->sb_bio.bi_inline_vecs, 1);
- dc->sb_bio.bi_io_vec[0].bv_page = sb_page;
+ bio_first_bvec_all(&dc->sb_bio)->bv_page = sb_page;
get_page(sb_page);
if (cached_dev_init(dc, sb->block_size << 9))
@@ -1261,7 +1272,7 @@ static int flash_devs_run(struct cache_set *c)
struct uuid_entry *u;
for (u = c->uuids;
- u < c->uuids + c->nr_uuids && !ret;
+ u < c->uuids + c->devices_max_used && !ret;
u++)
if (UUID_FLASH_ONLY(u))
ret = flash_dev_run(c, u);
@@ -1427,7 +1438,7 @@ static void __cache_set_unregister(struct closure *cl)
mutex_lock(&bch_register_lock);
- for (i = 0; i < c->nr_uuids; i++)
+ for (i = 0; i < c->devices_max_used; i++)
if (c->devices[i]) {
if (!UUID_FLASH_ONLY(&c->uuids[i]) &&
test_bit(CACHE_SET_UNREGISTERING, &c->flags)) {
@@ -1490,7 +1501,7 @@ struct cache_set *bch_cache_set_alloc(struct cache_sb *sb)
c->bucket_bits = ilog2(sb->bucket_size);
c->block_bits = ilog2(sb->block_size);
c->nr_uuids = bucket_bytes(c) / sizeof(struct uuid_entry);
-
+ c->devices_max_used = 0;
c->btree_pages = bucket_pages(c);
if (c->btree_pages > BTREE_MAX_PAGES)
c->btree_pages = max_t(int, c->btree_pages / 4,
@@ -1810,7 +1821,7 @@ void bch_cache_release(struct kobject *kobj)
free_fifo(&ca->free[i]);
if (ca->sb_bio.bi_inline_vecs[0].bv_page)
- put_page(ca->sb_bio.bi_io_vec[0].bv_page);
+ put_page(bio_first_page_all(&ca->sb_bio));
if (!IS_ERR_OR_NULL(ca->bdev))
blkdev_put(ca->bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);
@@ -1864,7 +1875,7 @@ static int register_cache(struct cache_sb *sb, struct page *sb_page,
ca->bdev->bd_holder = ca;
bio_init(&ca->sb_bio, ca->sb_bio.bi_inline_vecs, 1);
- ca->sb_bio.bi_io_vec[0].bv_page = sb_page;
+ bio_first_bvec_all(&ca->sb_bio)->bv_page = sb_page;
get_page(sb_page);
if (blk_queue_discard(bdev_get_queue(ca->bdev)))