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synced 2024-12-09 04:31:39 +00:00
bcache: Move keylist out of btree_op
Slowly working on pruning struct btree_op - the aim is for it to only contain things that are actually necessary for traversing the btree. Signed-off-by: Kent Overstreet <kmo@daterainc.com>
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a34a8bfd4e
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0b93207abb
@ -113,7 +113,6 @@ void bch_btree_op_init_stack(struct btree_op *op)
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memset(op, 0, sizeof(struct btree_op));
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closure_init_stack(&op->cl);
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op->lock = -1;
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bch_keylist_init(&op->keys);
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}
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/* Btree key manipulation */
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@ -267,10 +267,6 @@ struct btree_op {
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unsigned lookup_done:1;
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unsigned insert_collision:1;
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/* Anything after this point won't get zeroed in do_bio_hook() */
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/* Keys to be inserted */
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struct keylist keys;
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BKEY_PADDED(replace);
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};
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@ -301,6 +301,9 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list,
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list_entry(list->prev, struct journal_replay, list);
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uint64_t start = i->j.last_seq, end = i->j.seq, n = start;
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struct keylist keylist;
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bch_keylist_init(&keylist);
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list_for_each_entry(i, list, list) {
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BUG_ON(i->pin && atomic_read(i->pin) != 1);
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@ -314,16 +317,16 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list,
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k = bkey_next(k)) {
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trace_bcache_journal_replay_key(k);
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bkey_copy(op->keys.top, k);
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bch_keylist_push(&op->keys);
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bkey_copy(keylist.top, k);
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bch_keylist_push(&keylist);
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op->journal = i->pin;
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ret = bch_btree_insert(op, s, &op->keys);
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ret = bch_btree_insert(op, s, &keylist);
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if (ret)
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goto err;
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BUG_ON(!bch_keylist_empty(&op->keys));
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BUG_ON(!bch_keylist_empty(&keylist));
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keys++;
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cond_resched();
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@ -231,11 +231,11 @@ static void bch_data_insert_keys(struct closure *cl)
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#endif
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if (s->write)
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op->journal = bch_journal(op->c, &op->keys,
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op->journal = bch_journal(op->c, &s->insert_keys,
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op->flush_journal
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? &s->cl : NULL);
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if (bch_btree_insert(op, op->c, &op->keys)) {
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if (bch_btree_insert(op, op->c, &s->insert_keys)) {
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s->error = -ENOMEM;
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op->insert_data_done = true;
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}
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@ -247,7 +247,7 @@ static void bch_data_insert_keys(struct closure *cl)
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if (!op->insert_data_done)
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continue_at(cl, bch_data_insert_start, bcache_wq);
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bch_keylist_free(&op->keys);
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bch_keylist_free(&s->insert_keys);
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closure_return(cl);
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}
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@ -439,6 +439,7 @@ static bool bch_alloc_sectors(struct bkey *k, unsigned sectors,
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static void bch_data_invalidate(struct closure *cl)
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{
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struct btree_op *op = container_of(cl, struct btree_op, cl);
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struct search *s = container_of(op, struct search, op);
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struct bio *bio = op->cache_bio;
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pr_debug("invalidating %i sectors from %llu",
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@ -447,14 +448,14 @@ static void bch_data_invalidate(struct closure *cl)
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while (bio_sectors(bio)) {
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unsigned len = min(bio_sectors(bio), 1U << 14);
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if (bch_keylist_realloc(&op->keys, 0, op->c))
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if (bch_keylist_realloc(&s->insert_keys, 0, op->c))
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goto out;
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bio->bi_sector += len;
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bio->bi_size -= len << 9;
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bch_keylist_add(&op->keys, &KEY(op->inode,
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bio->bi_sector, len));
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bch_keylist_add(&s->insert_keys,
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&KEY(op->inode, bio->bi_sector, len));
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}
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op->insert_data_done = true;
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@ -466,6 +467,7 @@ out:
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static void bch_data_insert_error(struct closure *cl)
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{
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struct btree_op *op = container_of(cl, struct btree_op, cl);
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struct search *s = container_of(op, struct search, op);
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/*
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* Our data write just errored, which means we've got a bunch of keys to
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@ -476,9 +478,9 @@ static void bch_data_insert_error(struct closure *cl)
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* from the keys we'll accomplish just that.
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*/
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struct bkey *src = op->keys.keys, *dst = op->keys.keys;
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struct bkey *src = s->insert_keys.keys, *dst = s->insert_keys.keys;
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while (src != op->keys.top) {
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while (src != s->insert_keys.top) {
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struct bkey *n = bkey_next(src);
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SET_KEY_PTRS(src, 0);
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@ -488,7 +490,7 @@ static void bch_data_insert_error(struct closure *cl)
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src = n;
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}
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op->keys.top = dst;
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s->insert_keys.top = dst;
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bch_data_insert_keys(cl);
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}
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@ -539,12 +541,12 @@ static void bch_data_insert_start(struct closure *cl)
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? s->d->bio_split : op->c->bio_split;
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/* 1 for the device pointer and 1 for the chksum */
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if (bch_keylist_realloc(&op->keys,
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if (bch_keylist_realloc(&s->insert_keys,
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1 + (op->csum ? 1 : 0),
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op->c))
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continue_at(cl, bch_data_insert_keys, bcache_wq);
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k = op->keys.top;
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k = s->insert_keys.top;
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bkey_init(k);
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SET_KEY_INODE(k, op->inode);
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SET_KEY_OFFSET(k, bio->bi_sector);
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@ -570,7 +572,7 @@ static void bch_data_insert_start(struct closure *cl)
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bio_csum(n, k);
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trace_bcache_cache_insert(k);
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bch_keylist_push(&op->keys);
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bch_keylist_push(&s->insert_keys);
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n->bi_rw |= REQ_WRITE;
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bch_submit_bbio(n, op->c, k, 0);
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@ -605,7 +607,7 @@ err:
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op->insert_data_done = true;
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bio_put(bio);
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if (!bch_keylist_empty(&op->keys))
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if (!bch_keylist_empty(&s->insert_keys))
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continue_at(cl, bch_data_insert_keys, bcache_wq);
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else
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closure_return(cl);
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@ -634,8 +636,9 @@ err:
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void bch_data_insert(struct closure *cl)
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{
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struct btree_op *op = container_of(cl, struct btree_op, cl);
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struct search *s = container_of(op, struct search, op);
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bch_keylist_init(&op->keys);
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bch_keylist_init(&s->insert_keys);
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bio_get(op->cache_bio);
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bch_data_insert_start(cl);
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}
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@ -724,9 +727,11 @@ static void search_free(struct closure *cl)
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static struct search *search_alloc(struct bio *bio, struct bcache_device *d)
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{
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struct search *s;
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struct bio_vec *bv;
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struct search *s = mempool_alloc(d->c->search, GFP_NOIO);
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memset(s, 0, offsetof(struct search, op.keys));
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s = mempool_alloc(d->c->search, GFP_NOIO);
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memset(s, 0, offsetof(struct search, insert_keys));
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__closure_init(&s->cl, NULL);
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@ -25,8 +25,10 @@ struct search {
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short error;
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unsigned long start_time;
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/* Anything past op->keys won't get zeroed in do_bio_hook */
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struct btree_op op;
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/* Anything past this point won't get zeroed in search_alloc() */
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struct keylist insert_keys;
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};
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void bch_cache_read_endio(struct bio *, int);
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@ -300,18 +300,21 @@ static void write_dirty_finish(struct closure *cl)
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if (KEY_DIRTY(&w->key)) {
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unsigned i;
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struct btree_op op;
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struct keylist keys;
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bch_btree_op_init_stack(&op);
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bch_keylist_init(&keys);
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op.type = BTREE_REPLACE;
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bkey_copy(&op.replace, &w->key);
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SET_KEY_DIRTY(&w->key, false);
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bch_keylist_add(&op.keys, &w->key);
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bch_keylist_add(&keys, &w->key);
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for (i = 0; i < KEY_PTRS(&w->key); i++)
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atomic_inc(&PTR_BUCKET(dc->disk.c, &w->key, i)->pin);
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bch_btree_insert(&op, dc->disk.c, &op.keys);
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bch_btree_insert(&op, dc->disk.c, &keys);
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closure_sync(&op.cl);
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if (op.insert_collision)
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