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bcache: convert to bioset_init()/mempool_init()

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Convert bcache to embedded bio sets.

Reviewed-by: Coly Li <colyli@suse.de>
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Kent Overstreet 2018-05-20 18:25:51 -04:00 committed by Jens Axboe
parent b906bbb699
commit d19936a266
7 changed files with 37 additions and 52 deletions
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10
drivers/md/bcache/bcache.h
View File

@ -269,7 +269,7 @@ struct bcache_device {
atomic_t *stripe_sectors_dirty;
unsigned long *full_dirty_stripes;
struct bio_set *bio_split;
struct bio_set bio_split;
unsigned data_csum:1;
@ -530,9 +530,9 @@ struct cache_set {
struct closure sb_write;
struct semaphore sb_write_mutex;
mempool_t *search;
mempool_t *bio_meta;
struct bio_set *bio_split;
mempool_t search;
mempool_t bio_meta;
struct bio_set bio_split;
/* For the btree cache */
struct shrinker shrink;
@ -657,7 +657,7 @@ struct cache_set {
* A btree node on disk could have too many bsets for an iterator to fit
* on the stack - have to dynamically allocate them
*/
mempool_t *fill_iter;
mempool_t fill_iter;
struct bset_sort_state sort;

13
drivers/md/bcache/bset.c
View File

@ -1118,8 +1118,7 @@ struct bkey *bch_btree_iter_next_filter(struct btree_iter *iter,
void bch_bset_sort_state_free(struct bset_sort_state *state)
{
if (state->pool)
mempool_destroy(state->pool);
mempool_exit(&state->pool);
}
int bch_bset_sort_state_init(struct bset_sort_state *state, unsigned page_order)
@ -1129,11 +1128,7 @@ int bch_bset_sort_state_init(struct bset_sort_state *state, unsigned page_order)
state->page_order = page_order;
state->crit_factor = int_sqrt(1 << page_order);
state->pool = mempool_create_page_pool(1, page_order);
if (!state->pool)
return -ENOMEM;
return 0;
return mempool_init_page_pool(&state->pool, 1, page_order);
}
EXPORT_SYMBOL(bch_bset_sort_state_init);
@ -1191,7 +1186,7 @@ static void __btree_sort(struct btree_keys *b, struct btree_iter *iter,
BUG_ON(order > state->page_order);
outp = mempool_alloc(state->pool, GFP_NOIO);
outp = mempool_alloc(&state->pool, GFP_NOIO);
out = page_address(outp);
used_mempool = true;
order = state->page_order;
@ -1220,7 +1215,7 @@ static void __btree_sort(struct btree_keys *b, struct btree_iter *iter,
}
if (used_mempool)
mempool_free(virt_to_page(out), state->pool);
mempool_free(virt_to_page(out), &state->pool);
else
free_pages((unsigned long) out, order);

2
drivers/md/bcache/bset.h
View File

@ -347,7 +347,7 @@ static inline struct bkey *bch_bset_search(struct btree_keys *b,
/* Sorting */
struct bset_sort_state {
mempool_t *pool;
mempool_t pool;
unsigned page_order;
unsigned crit_factor;

4
drivers/md/bcache/btree.c
View File

@ -204,7 +204,7 @@ void bch_btree_node_read_done(struct btree *b)
struct bset *i = btree_bset_first(b);
struct btree_iter *iter;
iter = mempool_alloc(b->c->fill_iter, GFP_NOIO);
iter = mempool_alloc(&b->c->fill_iter, GFP_NOIO);
iter->size = b->c->sb.bucket_size / b->c->sb.block_size;
iter->used = 0;
@ -271,7 +271,7 @@ void bch_btree_node_read_done(struct btree *b)
bch_bset_init_next(&b->keys, write_block(b),
bset_magic(&b->c->sb));
out:
mempool_free(iter, b->c->fill_iter);
mempool_free(iter, &b->c->fill_iter);
return;
err:
set_btree_node_io_error(b);

4
drivers/md/bcache/io.c
View File

@ -17,12 +17,12 @@
void bch_bbio_free(struct bio *bio, struct cache_set *c)
{
struct bbio *b = container_of(bio, struct bbio, bio);
mempool_free(b, c->bio_meta);
mempool_free(b, &c->bio_meta);
}
struct bio *bch_bbio_alloc(struct cache_set *c)
{
struct bbio *b = mempool_alloc(c->bio_meta, GFP_NOIO);
struct bbio *b = mempool_alloc(&c->bio_meta, GFP_NOIO);
struct bio *bio = &b->bio;
bio_init(bio, bio->bi_inline_vecs, bucket_pages(c));

18
drivers/md/bcache/request.c
View File

@ -213,7 +213,7 @@ static void bch_data_insert_start(struct closure *cl)
do {
unsigned i;
struct bkey *k;
struct bio_set *split = op->c->bio_split;
struct bio_set *split = &op->c->bio_split;
/* 1 for the device pointer and 1 for the chksum */
if (bch_keylist_realloc(&op->insert_keys,
@ -548,7 +548,7 @@ static int cache_lookup_fn(struct btree_op *op, struct btree *b, struct bkey *k)
n = bio_next_split(bio, min_t(uint64_t, INT_MAX,
KEY_OFFSET(k) - bio->bi_iter.bi_sector),
GFP_NOIO, s->d->bio_split);
GFP_NOIO, &s->d->bio_split);
bio_key = &container_of(n, struct bbio, bio)->key;
bch_bkey_copy_single_ptr(bio_key, k, ptr);
@ -707,7 +707,7 @@ static void search_free(struct closure *cl)
bio_complete(s);
closure_debug_destroy(cl);
mempool_free(s, s->d->c->search);
mempool_free(s, &s->d->c->search);
}
static inline struct search *search_alloc(struct bio *bio,
@ -715,7 +715,7 @@ static inline struct search *search_alloc(struct bio *bio,
{
struct search *s;
s = mempool_alloc(d->c->search, GFP_NOIO);
s = mempool_alloc(&d->c->search, GFP_NOIO);
closure_init(&s->cl, NULL);
do_bio_hook(s, bio, request_endio);
@ -864,7 +864,7 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
s->cache_missed = 1;
if (s->cache_miss || s->iop.bypass) {
miss = bio_next_split(bio, sectors, GFP_NOIO, s->d->bio_split);
miss = bio_next_split(bio, sectors, GFP_NOIO, &s->d->bio_split);
ret = miss == bio ? MAP_DONE : MAP_CONTINUE;
goto out_submit;
}
@ -887,14 +887,14 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
s->iop.replace = true;
miss = bio_next_split(bio, sectors, GFP_NOIO, s->d->bio_split);
miss = bio_next_split(bio, sectors, GFP_NOIO, &s->d->bio_split);
/* btree_search_recurse()'s btree iterator is no good anymore */
ret = miss == bio ? MAP_DONE : -EINTR;
cache_bio = bio_alloc_bioset(GFP_NOWAIT,
DIV_ROUND_UP(s->insert_bio_sectors, PAGE_SECTORS),
dc->disk.bio_split);
&dc->disk.bio_split);
if (!cache_bio)
goto out_submit;
@ -1008,7 +1008,7 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s)
struct bio *flush;
flush = bio_alloc_bioset(GFP_NOIO, 0,
dc->disk.bio_split);
&dc->disk.bio_split);
if (!flush) {
s->iop.status = BLK_STS_RESOURCE;
goto insert_data;
@ -1021,7 +1021,7 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s)
closure_bio_submit(s->iop.c, flush, cl);
}
} else {
s->iop.bio = bio_clone_fast(bio, GFP_NOIO, dc->disk.bio_split);
s->iop.bio = bio_clone_fast(bio, GFP_NOIO, &dc->disk.bio_split);
/* I/O request sent to backing device */
bio->bi_end_io = backing_request_endio;
closure_bio_submit(s->iop.c, bio, cl);

38
drivers/md/bcache/super.c
View File

@ -753,8 +753,7 @@ static void bcache_device_free(struct bcache_device *d)
put_disk(d->disk);
}
if (d->bio_split)
bioset_free(d->bio_split);
bioset_exit(&d->bio_split);
kvfree(d->full_dirty_stripes);
kvfree(d->stripe_sectors_dirty);
@ -796,9 +795,8 @@ static int bcache_device_init(struct bcache_device *d, unsigned block_size,
if (idx < 0)
return idx;
if (!(d->bio_split = bioset_create(4, offsetof(struct bbio, bio),
BIOSET_NEED_BVECS |
BIOSET_NEED_RESCUER)) ||
if (bioset_init(&d->bio_split, 4, offsetof(struct bbio, bio),
BIOSET_NEED_BVECS|BIOSET_NEED_RESCUER) ||
!(d->disk = alloc_disk(BCACHE_MINORS))) {
ida_simple_remove(&bcache_device_idx, idx);
return -ENOMEM;
@ -1500,14 +1498,10 @@ static void cache_set_free(struct closure *cl)
if (c->moving_gc_wq)
destroy_workqueue(c->moving_gc_wq);
if (c->bio_split)
bioset_free(c->bio_split);
if (c->fill_iter)
mempool_destroy(c->fill_iter);
if (c->bio_meta)
mempool_destroy(c->bio_meta);
if (c->search)
mempool_destroy(c->search);
bioset_exit(&c->bio_split);
mempool_exit(&c->fill_iter);
mempool_exit(&c->bio_meta);
mempool_exit(&c->search);
kfree(c->devices);
mutex_lock(&bch_register_lock);
@ -1718,21 +1712,17 @@ struct cache_set *bch_cache_set_alloc(struct cache_sb *sb)
INIT_LIST_HEAD(&c->btree_cache_freed);
INIT_LIST_HEAD(&c->data_buckets);
c->search = mempool_create_slab_pool(32, bch_search_cache);
if (!c->search)
goto err;
iter_size = (sb->bucket_size / sb->block_size + 1) *
sizeof(struct btree_iter_set);
if (!(c->devices = kzalloc(c->nr_uuids * sizeof(void *), GFP_KERNEL)) ||
!(c->bio_meta = mempool_create_kmalloc_pool(2,
sizeof(struct bbio) + sizeof(struct bio_vec) *
bucket_pages(c))) ||
!(c->fill_iter = mempool_create_kmalloc_pool(1, iter_size)) ||
!(c->bio_split = bioset_create(4, offsetof(struct bbio, bio),
BIOSET_NEED_BVECS |
BIOSET_NEED_RESCUER)) ||
mempool_init_slab_pool(&c->search, 32, bch_search_cache) ||
mempool_init_kmalloc_pool(&c->bio_meta, 2,
sizeof(struct bbio) + sizeof(struct bio_vec) *
bucket_pages(c)) ||
mempool_init_kmalloc_pool(&c->fill_iter, 1, iter_size) ||
bioset_init(&c->bio_split, 4, offsetof(struct bbio, bio),
BIOSET_NEED_BVECS|BIOSET_NEED_RESCUER) ||
!(c->uuids = alloc_bucket_pages(GFP_KERNEL, c)) ||
!(c->moving_gc_wq = alloc_workqueue("bcache_gc",
WQ_MEM_RECLAIM, 0)) ||