mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-03 23:58:05 +00:00
430735cd1a
- Does not persist alloc info for stripes yet - Also does not yet include filesystem block/sector counts yet, from struct fs_usage - Not made use of just yet Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_ALLOC_BACKGROUND_H
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#define _BCACHEFS_ALLOC_BACKGROUND_H
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#include "bcachefs.h"
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#include "alloc_types.h"
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#include "debug.h"
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#define ALLOC_SCAN_BATCH(ca) max_t(size_t, 1, (ca)->mi.nbuckets >> 9)
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const char *bch2_alloc_invalid(const struct bch_fs *, struct bkey_s_c);
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void bch2_alloc_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
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#define bch2_bkey_ops_alloc (struct bkey_ops) { \
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.key_invalid = bch2_alloc_invalid, \
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.val_to_text = bch2_alloc_to_text, \
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}
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int bch2_alloc_read(struct bch_fs *, struct list_head *);
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int bch2_alloc_replay_key(struct bch_fs *, struct bkey_i *);
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static inline void bch2_wake_allocator(struct bch_dev *ca)
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{
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struct task_struct *p;
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rcu_read_lock();
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p = rcu_dereference(ca->alloc_thread);
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if (p)
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wake_up_process(p);
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rcu_read_unlock();
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}
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static inline void verify_not_on_freelist(struct bch_fs *c, struct bch_dev *ca,
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size_t bucket)
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{
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if (expensive_debug_checks(c) &&
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test_bit(BCH_FS_ALLOCATOR_STARTED, &c->flags)) {
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size_t iter;
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long i;
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unsigned j;
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for (j = 0; j < RESERVE_NR; j++)
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fifo_for_each_entry(i, &ca->free[j], iter)
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BUG_ON(i == bucket);
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fifo_for_each_entry(i, &ca->free_inc, iter)
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BUG_ON(i == bucket);
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}
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}
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void bch2_recalc_capacity(struct bch_fs *);
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void bch2_dev_allocator_remove(struct bch_fs *, struct bch_dev *);
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void bch2_dev_allocator_add(struct bch_fs *, struct bch_dev *);
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void bch2_dev_allocator_quiesce(struct bch_fs *, struct bch_dev *);
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void bch2_dev_allocator_stop(struct bch_dev *);
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int bch2_dev_allocator_start(struct bch_dev *);
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int bch2_alloc_write(struct bch_fs *, bool, bool *);
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int bch2_fs_allocator_start(struct bch_fs *);
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void bch2_fs_allocator_background_init(struct bch_fs *);
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#endif /* _BCACHEFS_ALLOC_BACKGROUND_H */
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