+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _BCACHEFS_ALLOC_FOREGROUND_H
-#define _BCACHEFS_ALLOC_FOREGROUND_H
-
-#include "bcachefs.h"
-#include "alloc_types.h"
-#include "extents.h"
-#include "sb-members.h"
-
-#include <linux/hash.h>
-
-struct bkey;
-struct bch_dev;
-struct bch_fs;
-struct bch_devs_List;
-
-extern const char * const bch2_watermarks[];
-
-void bch2_reset_alloc_cursors(struct bch_fs *);
-
-struct dev_alloc_list {
- unsigned nr;
- u8 devs[BCH_SB_MEMBERS_MAX];
-};
-
-struct dev_alloc_list bch2_dev_alloc_list(struct bch_fs *,
- struct dev_stripe_state *,
- struct bch_devs_mask *);
-void bch2_dev_stripe_increment(struct bch_dev *, struct dev_stripe_state *);
-
-long bch2_bucket_alloc_new_fs(struct bch_dev *);
-
-struct open_bucket *bch2_bucket_alloc(struct bch_fs *, struct bch_dev *,
- enum bch_watermark, struct closure *);
-
-static inline void ob_push(struct bch_fs *c, struct open_buckets *obs,
- struct open_bucket *ob)
-{
- BUG_ON(obs->nr >= ARRAY_SIZE(obs->v));
-
- obs->v[obs->nr++] = ob - c->open_buckets;
-}
-
-#define open_bucket_for_each(_c, _obs, _ob, _i) \
- for ((_i) = 0; \
- (_i) < (_obs)->nr && \
- ((_ob) = (_c)->open_buckets + (_obs)->v[_i], true); \
- (_i)++)
-
-static inline struct open_bucket *ec_open_bucket(struct bch_fs *c,
- struct open_buckets *obs)
-{
- struct open_bucket *ob;
- unsigned i;
-
- open_bucket_for_each(c, obs, ob, i)
- if (ob->ec)
- return ob;
-
- return NULL;
-}
-
-void bch2_open_bucket_write_error(struct bch_fs *,
- struct open_buckets *, unsigned);
-
-void __bch2_open_bucket_put(struct bch_fs *, struct open_bucket *);
-
-static inline void bch2_open_bucket_put(struct bch_fs *c, struct open_bucket *ob)
-{
- if (atomic_dec_and_test(&ob->pin))
- __bch2_open_bucket_put(c, ob);
-}
-
-static inline void bch2_open_buckets_put(struct bch_fs *c,
- struct open_buckets *ptrs)
-{
- struct open_bucket *ob;
- unsigned i;
-
- open_bucket_for_each(c, ptrs, ob, i)
- bch2_open_bucket_put(c, ob);
- ptrs->nr = 0;
-}
-
-static inline void bch2_alloc_sectors_done_inlined(struct bch_fs *c, struct write_point *wp)
-{
- struct open_buckets ptrs = { .nr = 0 }, keep = { .nr = 0 };
- struct open_bucket *ob;
- unsigned i;
-
- open_bucket_for_each(c, &wp->ptrs, ob, i)
- ob_push(c, !ob->sectors_free ? &ptrs : &keep, ob);
- wp->ptrs = keep;
-
- mutex_unlock(&wp->lock);
-
- bch2_open_buckets_put(c, &ptrs);
-}
-
-static inline void bch2_open_bucket_get(struct bch_fs *c,
- struct write_point *wp,
- struct open_buckets *ptrs)
-{
- struct open_bucket *ob;
- unsigned i;
-
- open_bucket_for_each(c, &wp->ptrs, ob, i) {
- ob->data_type = wp->data_type;
- atomic_inc(&ob->pin);
- ob_push(c, ptrs, ob);
- }
-}
-
-static inline open_bucket_idx_t *open_bucket_hashslot(struct bch_fs *c,
- unsigned dev, u64 bucket)
-{
- return c->open_buckets_hash +
- (jhash_3words(dev, bucket, bucket >> 32, 0) &
- (OPEN_BUCKETS_COUNT - 1));
-}
-
-static inline bool bch2_bucket_is_open(struct bch_fs *c, unsigned dev, u64 bucket)
-{
- open_bucket_idx_t slot = *open_bucket_hashslot(c, dev, bucket);
-
- while (slot) {
- struct open_bucket *ob = &c->open_buckets[slot];
-
- if (ob->dev == dev && ob->bucket == bucket)
- return true;
-
- slot = ob->hash;
- }
-
- return false;
-}
-
-static inline bool bch2_bucket_is_open_safe(struct bch_fs *c, unsigned dev, u64 bucket)
-{
- bool ret;
-
- if (bch2_bucket_is_open(c, dev, bucket))
- return true;
-
- spin_lock(&c->freelist_lock);
- ret = bch2_bucket_is_open(c, dev, bucket);
- spin_unlock(&c->freelist_lock);
-
- return ret;
-}
-
-int bch2_bucket_alloc_set_trans(struct btree_trans *, struct open_buckets *,
- struct dev_stripe_state *, struct bch_devs_mask *,
- unsigned, unsigned *, bool *, unsigned,
- enum bch_data_type, enum bch_watermark,
- struct closure *);
-
-int bch2_alloc_sectors_start_trans(struct btree_trans *,
- unsigned, unsigned,
- struct write_point_specifier,
- struct bch_devs_list *,
- unsigned, unsigned,
- enum bch_watermark,
- unsigned,
- struct closure *,
- struct write_point **);
-
-struct bch_extent_ptr bch2_ob_ptr(struct bch_fs *, struct open_bucket *);
-
-/*
- * Append pointers to the space we just allocated to @k, and mark @sectors space
- * as allocated out of @ob
- */
-static inline void
-bch2_alloc_sectors_append_ptrs_inlined(struct bch_fs *c, struct write_point *wp,
- struct bkey_i *k, unsigned sectors,
- bool cached)
-{
- struct open_bucket *ob;
- unsigned i;
-
- BUG_ON(sectors > wp->sectors_free);
- wp->sectors_free -= sectors;
- wp->sectors_allocated += sectors;
-
- open_bucket_for_each(c, &wp->ptrs, ob, i) {
- struct bch_dev *ca = bch_dev_bkey_exists(c, ob->dev);
- struct bch_extent_ptr ptr = bch2_ob_ptr(c, ob);
-
- ptr.cached = cached ||
- (!ca->mi.durability &&
- wp->data_type == BCH_DATA_user);
-
- bch2_bkey_append_ptr(k, ptr);
-
- BUG_ON(sectors > ob->sectors_free);
- ob->sectors_free -= sectors;
- }
-}
-
-void bch2_alloc_sectors_append_ptrs(struct bch_fs *, struct write_point *,
- struct bkey_i *, unsigned, bool);
-void bch2_alloc_sectors_done(struct bch_fs *, struct write_point *);
-
-void bch2_open_buckets_stop(struct bch_fs *c, struct bch_dev *, bool);
-
-static inline struct write_point_specifier writepoint_hashed(unsigned long v)
-{
- return (struct write_point_specifier) { .v = v | 1 };
-}
-
-static inline struct write_point_specifier writepoint_ptr(struct write_point *wp)
-{
- return (struct write_point_specifier) { .v = (unsigned long) wp };
-}
-
-void bch2_fs_allocator_foreground_init(struct bch_fs *);
-
-void bch2_open_buckets_to_text(struct printbuf *, struct bch_fs *);
-void bch2_open_buckets_partial_to_text(struct printbuf *, struct bch_fs *);
-
-void bch2_write_points_to_text(struct printbuf *, struct bch_fs *);
-
-#endif /* _BCACHEFS_ALLOC_FOREGROUND_H */
projects / bcachefs-tools-debian / blobdiff