cw1200: When debug is enabled, display all wakeup conditions for the wait_event_inter...
[firefly-linux-kernel-4.4.55.git] / drivers / md / bcache / request.h
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_ */