diff options
Diffstat (limited to 'drivers/md/bcache/movinggc.c')
| -rw-r--r-- | drivers/md/bcache/movinggc.c | 101 |
1 files changed, 51 insertions, 50 deletions
diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c index f633b30c962e..73918e55bf04 100644 --- a/drivers/md/bcache/movinggc.c +++ b/drivers/md/bcache/movinggc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Moving/copying garbage collector * @@ -22,7 +23,7 @@ static bool moving_pred(struct keybuf *buf, struct bkey *k) { struct cache_set *c = container_of(buf, struct cache_set, moving_gc_keys); - unsigned i; + unsigned int i; for (i = 0; i < KEY_PTRS(k); i++) if (ptr_available(c, k, i) && @@ -34,15 +35,16 @@ static bool moving_pred(struct keybuf *buf, struct bkey *k) /* Moving GC - IO loop */ -static void moving_io_destructor(struct closure *cl) +static CLOSURE_CALLBACK(moving_io_destructor) { - struct moving_io *io = container_of(cl, struct moving_io, cl); + closure_type(io, struct moving_io, cl); + kfree(io); } -static void write_moving_finish(struct closure *cl) +static CLOSURE_CALLBACK(write_moving_finish) { - struct moving_io *io = container_of(cl, struct moving_io, cl); + closure_type(io, struct moving_io, cl); struct bio *bio = &io->bio.bio; bio_free_pages(bio); @@ -77,19 +79,19 @@ static void moving_init(struct moving_io *io) { struct bio *bio = &io->bio.bio; - bio_init(bio, bio->bi_inline_vecs, - DIV_ROUND_UP(KEY_SIZE(&io->w->key), PAGE_SECTORS)); + bio_init_inline(bio, NULL, + DIV_ROUND_UP(KEY_SIZE(&io->w->key), PAGE_SECTORS), 0); bio_get(bio); - bio_set_prio(bio, IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0)); + bio->bi_ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0); bio->bi_iter.bi_size = KEY_SIZE(&io->w->key) << 9; bio->bi_private = &io->cl; bch_bio_map(bio, NULL); } -static void write_moving(struct closure *cl) +static CLOSURE_CALLBACK(write_moving) { - struct moving_io *io = container_of(cl, struct moving_io, cl); + closure_type(io, struct moving_io, cl); struct data_insert_op *op = &io->op; if (!op->status) { @@ -111,9 +113,9 @@ static void write_moving(struct closure *cl) continue_at(cl, write_moving_finish, op->wq); } -static void read_moving_submit(struct closure *cl) +static CLOSURE_CALLBACK(read_moving_submit) { - struct moving_io *io = container_of(cl, struct moving_io, cl); + closure_type(io, struct moving_io, cl); struct bio *bio = &io->bio.bio; bch_submit_bbio(bio, io->op.c, &io->w->key, 0); @@ -143,9 +145,9 @@ static void read_moving(struct cache_set *c) continue; } - io = kzalloc(sizeof(struct moving_io) + sizeof(struct bio_vec) - * DIV_ROUND_UP(KEY_SIZE(&w->key), PAGE_SECTORS), - GFP_KERNEL); + io = kzalloc(sizeof(*io) + sizeof(struct bio_vec) * + DIV_ROUND_UP(KEY_SIZE(&w->key), PAGE_SECTORS), + GFP_KERNEL); if (!io) goto err; @@ -158,10 +160,10 @@ static void read_moving(struct cache_set *c) moving_init(io); bio = &io->bio.bio; - bio_set_op_attrs(bio, REQ_OP_READ, 0); + bio->bi_opf = REQ_OP_READ; bio->bi_end_io = read_moving_endio; - if (bio_alloc_pages(bio, GFP_KERNEL)) + if (bch_bio_alloc_pages(bio, GFP_KERNEL)) goto err; trace_bcache_gc_copy(&w->key); @@ -185,58 +187,57 @@ static bool bucket_cmp(struct bucket *l, struct bucket *r) return GC_SECTORS_USED(l) < GC_SECTORS_USED(r); } -static unsigned bucket_heap_top(struct cache *ca) +static unsigned int bucket_heap_top(struct cache *ca) { struct bucket *b; + return (b = heap_peek(&ca->heap)) ? GC_SECTORS_USED(b) : 0; } void bch_moving_gc(struct cache_set *c) { - struct cache *ca; + struct cache *ca = c->cache; struct bucket *b; - unsigned i; + unsigned long sectors_to_move, reserve_sectors; if (!c->copy_gc_enabled) return; mutex_lock(&c->bucket_lock); - for_each_cache(ca, c, i) { - unsigned sectors_to_move = 0; - unsigned reserve_sectors = ca->sb.bucket_size * - fifo_used(&ca->free[RESERVE_MOVINGGC]); - - ca->heap.used = 0; - - for_each_bucket(b, ca) { - if (GC_MARK(b) == GC_MARK_METADATA || - !GC_SECTORS_USED(b) || - GC_SECTORS_USED(b) == ca->sb.bucket_size || - atomic_read(&b->pin)) - continue; - - if (!heap_full(&ca->heap)) { - sectors_to_move += GC_SECTORS_USED(b); - heap_add(&ca->heap, b, bucket_cmp); - } else if (bucket_cmp(b, heap_peek(&ca->heap))) { - sectors_to_move -= bucket_heap_top(ca); - sectors_to_move += GC_SECTORS_USED(b); - - ca->heap.data[0] = b; - heap_sift(&ca->heap, 0, bucket_cmp); - } - } + sectors_to_move = 0; + reserve_sectors = ca->sb.bucket_size * + fifo_used(&ca->free[RESERVE_MOVINGGC]); - while (sectors_to_move > reserve_sectors) { - heap_pop(&ca->heap, b, bucket_cmp); - sectors_to_move -= GC_SECTORS_USED(b); + ca->heap.used = 0; + + for_each_bucket(b, ca) { + if (GC_MARK(b) == GC_MARK_METADATA || + !GC_SECTORS_USED(b) || + GC_SECTORS_USED(b) == ca->sb.bucket_size || + atomic_read(&b->pin)) + continue; + + if (!heap_full(&ca->heap)) { + sectors_to_move += GC_SECTORS_USED(b); + heap_add(&ca->heap, b, bucket_cmp); + } else if (bucket_cmp(b, heap_peek(&ca->heap))) { + sectors_to_move -= bucket_heap_top(ca); + sectors_to_move += GC_SECTORS_USED(b); + + ca->heap.data[0] = b; + heap_sift(&ca->heap, 0, bucket_cmp); } + } - while (heap_pop(&ca->heap, b, bucket_cmp)) - SET_GC_MOVE(b, 1); + while (sectors_to_move > reserve_sectors) { + heap_pop(&ca->heap, b, bucket_cmp); + sectors_to_move -= GC_SECTORS_USED(b); } + while (heap_pop(&ca->heap, b, bucket_cmp)) + SET_GC_MOVE(b, 1); + mutex_unlock(&c->bucket_lock); c->moving_gc_keys.last_scanned = ZERO_KEY; |
