+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_BTREE_GC_H
#define _BCACHEFS_BTREE_GC_H
+#include "bkey.h"
#include "btree_types.h"
-void bch2_coalesce(struct bch_fs *);
-int bch2_gc(struct bch_fs *, struct list_head *, bool);
+int bch2_check_topology(struct bch_fs *);
+int bch2_gc(struct bch_fs *, bool, bool);
+int bch2_gc_gens(struct bch_fs *);
void bch2_gc_thread_stop(struct bch_fs *);
int bch2_gc_thread_start(struct bch_fs *);
-int bch2_initial_gc(struct bch_fs *, struct list_head *);
-void bch2_mark_dev_superblock(struct bch_fs *, struct bch_dev *, unsigned);
/*
* For concurrent mark and sweep (with other index updates), we define a total
static inline int gc_pos_cmp(struct gc_pos l, struct gc_pos r)
{
- if (l.phase != r.phase)
- return l.phase < r.phase ? -1 : 1;
- if (bkey_cmp(l.pos, r.pos))
- return bkey_cmp(l.pos, r.pos);
- if (l.level != r.level)
- return l.level < r.level ? -1 : 1;
- return 0;
+ return cmp_int(l.phase, r.phase) ?:
+ bpos_cmp(l.pos, r.pos) ?:
+ cmp_int(l.level, r.level);
}
static inline enum gc_phase btree_id_to_gc_phase(enum btree_id id)
{
switch (id) {
-#define x(n, v, s) case BTREE_ID_##n: return GC_PHASE_BTREE_##n;
+#define x(name, v, ...) case BTREE_ID_##name: return GC_PHASE_BTREE_##name;
BCH_BTREE_IDS()
#undef x
default:
*/
static inline struct gc_pos gc_pos_btree_node(struct btree *b)
{
- return gc_pos_btree(b->btree_id, b->key.k.p, b->level);
+ return gc_pos_btree(b->c.btree_id, b->key.k.p, b->c.level);
}
/*
*/
static inline struct gc_pos gc_pos_btree_root(enum btree_id id)
{
- return gc_pos_btree(id, POS_MAX, BTREE_MAX_DEPTH);
-}
-
-static inline struct gc_pos gc_pos_alloc(struct bch_fs *c, struct open_bucket *ob)
-{
- return (struct gc_pos) {
- .phase = GC_PHASE_ALLOC,
- .pos = POS(ob ? ob - c->open_buckets : 0, 0),
- };
+ return gc_pos_btree(id, SPOS_MAX, BTREE_MAX_DEPTH);
}
static inline bool gc_visited(struct bch_fs *c, struct gc_pos pos)
do {
seq = read_seqcount_begin(&c->gc_pos_lock);
- ret = gc_pos_cmp(pos, c->gc_pos) < 0;
+ ret = gc_pos_cmp(pos, c->gc_pos) <= 0;
} while (read_seqcount_retry(&c->gc_pos_lock, seq));
return ret;
}
+static inline void bch2_do_gc_gens(struct bch_fs *c)
+{
+ atomic_inc(&c->kick_gc);
+ if (c->gc_thread)
+ wake_up_process(c->gc_thread);
+}
+
#endif /* _BCACHEFS_BTREE_GC_H */