f6b94a3baa
Prep work for the patch to update existing stripes with new data blocks. This moves allocating new stripes into ec.c, and also sets up the data structures so that we can handly only allocating some of the blocks in a stripe. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
139 lines
3.5 KiB
C
139 lines
3.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_ALLOC_FOREGROUND_H
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#define _BCACHEFS_ALLOC_FOREGROUND_H
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#include "bcachefs.h"
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#include "alloc_types.h"
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#include <linux/hash.h>
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struct bkey;
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struct bch_dev;
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struct bch_fs;
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struct bch_devs_List;
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struct dev_alloc_list {
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unsigned nr;
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u8 devs[BCH_SB_MEMBERS_MAX];
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};
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struct dev_alloc_list bch2_dev_alloc_list(struct bch_fs *,
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struct dev_stripe_state *,
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struct bch_devs_mask *);
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void bch2_dev_stripe_increment(struct bch_fs *, struct bch_dev *,
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struct dev_stripe_state *);
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long bch2_bucket_alloc_new_fs(struct bch_dev *);
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struct open_bucket *bch2_bucket_alloc(struct bch_fs *, struct bch_dev *,
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enum alloc_reserve, bool,
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struct closure *);
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static inline void ob_push(struct bch_fs *c, struct open_buckets *obs,
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struct open_bucket *ob)
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{
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BUG_ON(obs->nr >= ARRAY_SIZE(obs->v));
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obs->v[obs->nr++] = ob - c->open_buckets;
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}
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#define open_bucket_for_each(_c, _obs, _ob, _i) \
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for ((_i) = 0; \
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(_i) < (_obs)->nr && \
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((_ob) = (_c)->open_buckets + (_obs)->v[_i], true); \
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(_i)++)
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static inline struct open_bucket *ec_open_bucket(struct bch_fs *c,
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struct open_buckets *obs)
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{
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struct open_bucket *ob;
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unsigned i;
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open_bucket_for_each(c, obs, ob, i)
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if (ob->ec)
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return ob;
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return NULL;
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}
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void bch2_open_bucket_write_error(struct bch_fs *,
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struct open_buckets *, unsigned);
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void __bch2_open_bucket_put(struct bch_fs *, struct open_bucket *);
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static inline void bch2_open_bucket_put(struct bch_fs *c, struct open_bucket *ob)
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{
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if (atomic_dec_and_test(&ob->pin))
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__bch2_open_bucket_put(c, ob);
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}
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static inline void bch2_open_buckets_put(struct bch_fs *c,
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struct open_buckets *ptrs)
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{
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struct open_bucket *ob;
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unsigned i;
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open_bucket_for_each(c, ptrs, ob, i)
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bch2_open_bucket_put(c, ob);
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ptrs->nr = 0;
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}
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static inline void bch2_open_bucket_get(struct bch_fs *c,
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struct write_point *wp,
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struct open_buckets *ptrs)
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{
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struct open_bucket *ob;
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unsigned i;
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open_bucket_for_each(c, &wp->ptrs, ob, i) {
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ob->type = wp->type;
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atomic_inc(&ob->pin);
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ob_push(c, ptrs, ob);
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}
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}
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int bch2_bucket_alloc_set(struct bch_fs *, struct open_buckets *,
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struct dev_stripe_state *, struct bch_devs_mask *,
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unsigned, unsigned *, bool *, enum alloc_reserve,
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unsigned, struct closure *);
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struct write_point *bch2_alloc_sectors_start(struct bch_fs *,
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unsigned, unsigned,
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struct write_point_specifier,
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struct bch_devs_list *,
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unsigned, unsigned,
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enum alloc_reserve,
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unsigned,
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struct closure *);
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void bch2_alloc_sectors_append_ptrs(struct bch_fs *, struct write_point *,
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struct bkey_i *, unsigned);
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void bch2_alloc_sectors_done(struct bch_fs *, struct write_point *);
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void bch2_open_buckets_stop_dev(struct bch_fs *, struct bch_dev *,
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struct open_buckets *);
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void bch2_writepoint_stop(struct bch_fs *, struct bch_dev *,
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struct write_point *);
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static inline struct write_point_specifier writepoint_hashed(unsigned long v)
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{
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return (struct write_point_specifier) { .v = v | 1 };
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}
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static inline struct write_point_specifier writepoint_ptr(struct write_point *wp)
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{
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return (struct write_point_specifier) { .v = (unsigned long) wp };
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}
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static inline void writepoint_init(struct write_point *wp,
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enum bch_data_type type)
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{
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mutex_init(&wp->lock);
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wp->type = type;
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}
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void bch2_fs_allocator_foreground_init(struct bch_fs *);
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#endif /* _BCACHEFS_ALLOC_FOREGROUND_H */
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