1cafe5635SKent Overstreet #ifndef _BCACHE_REQUEST_H_ 2cafe5635SKent Overstreet #define _BCACHE_REQUEST_H_ 3cafe5635SKent Overstreet 4cafe5635SKent Overstreet #include <linux/cgroup.h> 5cafe5635SKent Overstreet 6cafe5635SKent Overstreet struct search { 7cafe5635SKent Overstreet /* Stack frame for bio_complete */ 8cafe5635SKent Overstreet struct closure cl; 9cafe5635SKent Overstreet 10cafe5635SKent Overstreet struct bcache_device *d; 11*c18536a7SKent Overstreet struct cache_set *c; 12cafe5635SKent Overstreet struct task_struct *task; 13cafe5635SKent Overstreet 14cafe5635SKent Overstreet struct bbio bio; 15cafe5635SKent Overstreet struct bio *orig_bio; 16cafe5635SKent Overstreet struct bio *cache_miss; 17*c18536a7SKent Overstreet 18*c18536a7SKent Overstreet /* Bio to be inserted into the cache */ 19*c18536a7SKent Overstreet struct bio *cache_bio; 20cafe5635SKent Overstreet unsigned cache_bio_sectors; 21cafe5635SKent Overstreet 22*c18536a7SKent Overstreet unsigned inode; 23*c18536a7SKent Overstreet 24cafe5635SKent Overstreet unsigned recoverable:1; 25cafe5635SKent Overstreet unsigned unaligned_bvec:1; 26cafe5635SKent Overstreet 27cafe5635SKent Overstreet unsigned write:1; 28cafe5635SKent Overstreet unsigned writeback:1; 29cafe5635SKent Overstreet 30*c18536a7SKent Overstreet unsigned csum:1; 31*c18536a7SKent Overstreet unsigned bypass:1; 32*c18536a7SKent Overstreet unsigned flush_journal:1; 33*c18536a7SKent Overstreet 34*c18536a7SKent Overstreet unsigned insert_data_done:1; 35*c18536a7SKent Overstreet 36*c18536a7SKent Overstreet uint16_t write_prio; 37*c18536a7SKent Overstreet 38cafe5635SKent Overstreet /* IO error returned to s->bio */ 39cafe5635SKent Overstreet short error; 40cafe5635SKent Overstreet unsigned long start_time; 41cafe5635SKent Overstreet 42cafe5635SKent Overstreet struct btree_op op; 430b93207aSKent Overstreet 440b93207aSKent Overstreet /* Anything past this point won't get zeroed in search_alloc() */ 450b93207aSKent Overstreet struct keylist insert_keys; 46cafe5635SKent Overstreet }; 47cafe5635SKent Overstreet 48c37511b8SKent Overstreet unsigned bch_get_congested(struct cache_set *); 49a34a8bfdSKent Overstreet void bch_data_insert(struct closure *cl); 50cafe5635SKent Overstreet 51cafe5635SKent Overstreet void bch_open_buckets_free(struct cache_set *); 52cafe5635SKent Overstreet int bch_open_buckets_alloc(struct cache_set *); 53cafe5635SKent Overstreet 54cafe5635SKent Overstreet void bch_cached_dev_request_init(struct cached_dev *dc); 55cafe5635SKent Overstreet void bch_flash_dev_request_init(struct bcache_device *d); 56cafe5635SKent Overstreet 57cafe5635SKent Overstreet extern struct kmem_cache *bch_search_cache, *bch_passthrough_cache; 58cafe5635SKent Overstreet 59cafe5635SKent Overstreet struct bch_cgroup { 60cafe5635SKent Overstreet #ifdef CONFIG_CGROUP_BCACHE 61cafe5635SKent Overstreet struct cgroup_subsys_state css; 62cafe5635SKent Overstreet #endif 63cafe5635SKent Overstreet /* 64cafe5635SKent Overstreet * We subtract one from the index into bch_cache_modes[], so that 65cafe5635SKent Overstreet * default == -1; this makes it so the rest match up with d->cache_mode, 66cafe5635SKent Overstreet * and we use d->cache_mode if cgrp->cache_mode < 0 67cafe5635SKent Overstreet */ 68cafe5635SKent Overstreet short cache_mode; 69cafe5635SKent Overstreet bool verify; 70cafe5635SKent Overstreet struct cache_stat_collector stats; 71cafe5635SKent Overstreet }; 72cafe5635SKent Overstreet 73cafe5635SKent Overstreet struct bch_cgroup *bch_bio_to_cgroup(struct bio *bio); 74cafe5635SKent Overstreet 75cafe5635SKent Overstreet #endif /* _BCACHE_REQUEST_H_ */ 76