| Kent Overstreet | cafe563 | 2013-03-23 16:11:31 -0700 | [diff] [blame^] | 1 | #ifndef _BCACHE_REQUEST_H_ |
| 2 | #define _BCACHE_REQUEST_H_ |
| 3 | |
| 4 | #include <linux/cgroup.h> |
| 5 | |
| 6 | struct search { |
| 7 | /* Stack frame for bio_complete */ |
| 8 | struct closure cl; |
| 9 | |
| 10 | struct bcache_device *d; |
| 11 | struct task_struct *task; |
| 12 | |
| 13 | struct bbio bio; |
| 14 | struct bio *orig_bio; |
| 15 | struct bio *cache_miss; |
| 16 | unsigned cache_bio_sectors; |
| 17 | |
| 18 | unsigned recoverable:1; |
| 19 | unsigned unaligned_bvec:1; |
| 20 | |
| 21 | unsigned write:1; |
| 22 | unsigned writeback:1; |
| 23 | |
| 24 | /* IO error returned to s->bio */ |
| 25 | short error; |
| 26 | unsigned long start_time; |
| 27 | |
| 28 | /* Anything past op->keys won't get zeroed in do_bio_hook */ |
| 29 | struct btree_op op; |
| 30 | }; |
| 31 | |
| 32 | void bch_cache_read_endio(struct bio *, int); |
| 33 | int bch_get_congested(struct cache_set *); |
| 34 | void bch_insert_data(struct closure *cl); |
| 35 | void bch_btree_insert_async(struct closure *); |
| 36 | void bch_cache_read_endio(struct bio *, int); |
| 37 | |
| 38 | void bch_open_buckets_free(struct cache_set *); |
| 39 | int bch_open_buckets_alloc(struct cache_set *); |
| 40 | |
| 41 | void bch_cached_dev_request_init(struct cached_dev *dc); |
| 42 | void bch_flash_dev_request_init(struct bcache_device *d); |
| 43 | |
| 44 | extern struct kmem_cache *bch_search_cache, *bch_passthrough_cache; |
| 45 | |
| 46 | struct bch_cgroup { |
| 47 | #ifdef CONFIG_CGROUP_BCACHE |
| 48 | struct cgroup_subsys_state css; |
| 49 | #endif |
| 50 | /* |
| 51 | * We subtract one from the index into bch_cache_modes[], so that |
| 52 | * default == -1; this makes it so the rest match up with d->cache_mode, |
| 53 | * and we use d->cache_mode if cgrp->cache_mode < 0 |
| 54 | */ |
| 55 | short cache_mode; |
| 56 | bool verify; |
| 57 | struct cache_stat_collector stats; |
| 58 | }; |
| 59 | |
| 60 | struct bch_cgroup *bch_bio_to_cgroup(struct bio *bio); |
| 61 | |
| 62 | #endif /* _BCACHE_REQUEST_H_ */ |