+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Code for manipulating bucket marks for garbage collection.
*
#define bucket_cmpxchg(g, new, expr) \
({ \
- u64 _v = READ_ONCE((g)->_mark.counter); \
+ struct bucket *_g = g; \
+ u64 _v = atomic64_read(&(g)->_mark.v); \
struct bucket_mark _old; \
\
do { \
- (new).counter = _old.counter = _v; \
+ (new).v.counter = _old.v.counter = _v; \
expr; \
- } while ((_v = cmpxchg(&(g)->_mark.counter, \
- _old.counter, \
- (new).counter)) != _old.counter);\
+ } while ((_v = atomic64_cmpxchg(&(_g)->_mark.v, \
+ _old.v.counter, \
+ (new).v.counter)) != _old.v.counter);\
_old; \
})
-static inline struct bucket_array *bucket_array(struct bch_dev *ca)
+static inline struct bucket_array *__bucket_array(struct bch_dev *ca,
+ bool gc)
{
- return rcu_dereference_check(ca->buckets,
- lockdep_is_held(&ca->fs->usage_lock) ||
+ return rcu_dereference_check(ca->buckets[gc],
+ !ca->fs ||
+ percpu_rwsem_is_held(&ca->fs->mark_lock) ||
lockdep_is_held(&ca->fs->gc_lock) ||
lockdep_is_held(&ca->bucket_lock));
}
-static inline struct bucket *bucket(struct bch_dev *ca, size_t b)
+static inline struct bucket_array *bucket_array(struct bch_dev *ca)
{
- struct bucket_array *buckets = bucket_array(ca);
+ return __bucket_array(ca, false);
+}
+
+static inline struct bucket *__bucket(struct bch_dev *ca, size_t b, bool gc)
+{
+ struct bucket_array *buckets = __bucket_array(ca, gc);
BUG_ON(b < buckets->first_bucket || b >= buckets->nbuckets);
return buckets->b + b;
}
-static inline void bucket_io_clock_reset(struct bch_fs *c, struct bch_dev *ca,
- size_t b, int rw)
+static inline struct bucket *bucket(struct bch_dev *ca, size_t b)
+{
+ return __bucket(ca, b, false);
+}
+
+static inline u16 bucket_last_io(struct bch_fs *c, struct bucket *g, int rw)
{
- bucket(ca, b)->prio[rw] = c->prio_clock[rw].hand;
+ return c->bucket_clock[rw].hand - g->io_time[rw];
}
/*
static inline u8 bucket_gc_gen(struct bch_dev *ca, size_t b)
{
- return bucket(ca, b)->mark.gen - ca->oldest_gens[b];
+ struct bucket *g = bucket(ca, b);
+
+ return g->mark.gen - g->oldest_gen;
}
static inline size_t PTR_BUCKET_NR(const struct bch_dev *ca,
}
static inline struct bucket *PTR_BUCKET(struct bch_dev *ca,
- const struct bch_extent_ptr *ptr)
+ const struct bch_extent_ptr *ptr,
+ bool gc)
{
- return bucket(ca, PTR_BUCKET_NR(ca, ptr));
+ return __bucket(ca, PTR_BUCKET_NR(ca, ptr), gc);
+}
+
+static inline enum bch_data_type ptr_data_type(const struct bkey *k,
+ const struct bch_extent_ptr *ptr)
+{
+ if (k->type == KEY_TYPE_btree_ptr ||
+ k->type == KEY_TYPE_btree_ptr_v2)
+ return BCH_DATA_btree;
+
+ return ptr->cached ? BCH_DATA_cached : BCH_DATA_user;
}
static inline struct bucket_mark ptr_bucket_mark(struct bch_dev *ca,
struct bucket_mark m;
rcu_read_lock();
- m = READ_ONCE(bucket(ca, PTR_BUCKET_NR(ca, ptr))->mark);
+ m = READ_ONCE(PTR_BUCKET(ca, ptr, 0)->mark);
rcu_read_unlock();
return m;
return gen_after(ptr_bucket_mark(ca, ptr).gen, ptr->gen);
}
-/* bucket gc marks */
+static inline s64 __ptr_disk_sectors(struct extent_ptr_decoded p,
+ unsigned live_size)
+{
+ return live_size && p.crc.compression_type
+ ? max(1U, DIV_ROUND_UP(live_size * p.crc.compressed_size,
+ p.crc.uncompressed_size))
+ : live_size;
+}
-/* The dirty and cached sector counts saturate. If this occurs,
- * reference counting alone will not free the bucket, and a btree
- * GC must be performed. */
-#define GC_MAX_SECTORS_USED ((1U << 15) - 1)
+static inline s64 ptr_disk_sectors(struct extent_ptr_decoded p)
+{
+ return __ptr_disk_sectors(p, p.crc.live_size);
+}
+
+/* bucket gc marks */
static inline unsigned bucket_sectors_used(struct bucket_mark mark)
{
!bucket_sectors_used(mark);
}
+static inline bool is_available_bucket(struct bucket_mark mark)
+{
+ return (!mark.owned_by_allocator &&
+ !mark.dirty_sectors &&
+ !mark.stripe);
+}
+
+static inline bool bucket_needs_journal_commit(struct bucket_mark m,
+ u16 last_seq_ondisk)
+{
+ return m.journal_seq_valid &&
+ ((s16) m.journal_seq - (s16) last_seq_ondisk > 0);
+}
+
/* Device usage: */
-struct bch_dev_usage __bch2_dev_usage_read(struct bch_dev *);
-struct bch_dev_usage bch2_dev_usage_read(struct bch_fs *, struct bch_dev *);
+struct bch_dev_usage bch2_dev_usage_read(struct bch_dev *);
+
+void bch2_dev_usage_from_buckets(struct bch_fs *);
static inline u64 __dev_buckets_available(struct bch_dev *ca,
struct bch_dev_usage stats)
u64 total = ca->mi.nbuckets - ca->mi.first_bucket;
if (WARN_ONCE(stats.buckets_unavailable > total,
- "buckets_unavailable overflow\n"))
+ "buckets_unavailable overflow (%llu > %llu)\n",
+ stats.buckets_unavailable, total))
return 0;
return total - stats.buckets_unavailable;
/*
* Number of reclaimable buckets - only for use by the allocator thread:
*/
-static inline u64 dev_buckets_available(struct bch_fs *c, struct bch_dev *ca)
+static inline u64 dev_buckets_available(struct bch_dev *ca)
{
- return __dev_buckets_available(ca, bch2_dev_usage_read(c, ca));
+ return __dev_buckets_available(ca, bch2_dev_usage_read(ca));
}
static inline u64 __dev_buckets_free(struct bch_dev *ca,
fifo_used(&ca->free_inc);
}
-static inline u64 dev_buckets_free(struct bch_fs *c, struct bch_dev *ca)
+static inline u64 dev_buckets_free(struct bch_dev *ca)
{
- return __dev_buckets_free(ca, bch2_dev_usage_read(c, ca));
+ return __dev_buckets_free(ca, bch2_dev_usage_read(ca));
}
/* Filesystem usage: */
-static inline enum bch_data_type s_alloc_to_data_type(enum s_alloc s)
+static inline unsigned fs_usage_u64s(struct bch_fs *c)
{
- switch (s) {
- case S_META:
- return BCH_DATA_BTREE;
- case S_DIRTY:
- return BCH_DATA_USER;
- default:
- BUG();
- }
+
+ return sizeof(struct bch_fs_usage) / sizeof(u64) +
+ READ_ONCE(c->replicas.nr);
}
-struct bch_fs_usage __bch2_fs_usage_read(struct bch_fs *);
-struct bch_fs_usage bch2_fs_usage_read(struct bch_fs *);
-void bch2_fs_usage_apply(struct bch_fs *, struct bch_fs_usage *,
- struct disk_reservation *, struct gc_pos);
+void bch2_fs_usage_scratch_put(struct bch_fs *, struct bch_fs_usage *);
+struct bch_fs_usage *bch2_fs_usage_scratch_get(struct bch_fs *);
-u64 __bch2_fs_sectors_used(struct bch_fs *, struct bch_fs_usage);
-u64 bch2_fs_sectors_used(struct bch_fs *, struct bch_fs_usage);
-u64 bch2_fs_sectors_free(struct bch_fs *, struct bch_fs_usage);
+u64 bch2_fs_usage_read_one(struct bch_fs *, u64 *);
-static inline bool is_available_bucket(struct bucket_mark mark)
-{
- return (!mark.owned_by_allocator &&
- !mark.dirty_sectors &&
- !mark.nouse);
-}
+struct bch_fs_usage *bch2_fs_usage_read(struct bch_fs *);
-static inline bool bucket_needs_journal_commit(struct bucket_mark m,
- u16 last_seq_ondisk)
-{
- return m.journal_seq_valid &&
- ((s16) m.journal_seq - (s16) last_seq_ondisk > 0);
-}
+void bch2_fs_usage_acc_to_base(struct bch_fs *, unsigned);
+
+void bch2_fs_usage_to_text(struct printbuf *,
+ struct bch_fs *, struct bch_fs_usage *);
+
+u64 bch2_fs_sectors_used(struct bch_fs *, struct bch_fs_usage *);
+
+struct bch_fs_usage_short
+bch2_fs_usage_read_short(struct bch_fs *);
+
+/* key/bucket marking: */
void bch2_bucket_seq_cleanup(struct bch_fs *);
+void bch2_fs_usage_initialize(struct bch_fs *);
-bool bch2_invalidate_bucket(struct bch_fs *, struct bch_dev *,
+void bch2_invalidate_bucket(struct bch_fs *, struct bch_dev *,
size_t, struct bucket_mark *);
void bch2_mark_alloc_bucket(struct bch_fs *, struct bch_dev *,
size_t, bool, struct gc_pos, unsigned);
size_t, enum bch_data_type, unsigned,
struct gc_pos, unsigned);
-#define BCH_BUCKET_MARK_NOATOMIC (1 << 0)
-#define BCH_BUCKET_MARK_MAY_MAKE_UNAVAILABLE (1 << 1)
-#define BCH_BUCKET_MARK_GC_WILL_VISIT (1 << 2)
-#define BCH_BUCKET_MARK_GC_LOCK_HELD (1 << 3)
+int bch2_mark_key(struct bch_fs *, struct bkey_s_c, unsigned,
+ s64, struct bch_fs_usage *, u64, unsigned);
+int bch2_fs_usage_apply(struct bch_fs *, struct bch_fs_usage *,
+ struct disk_reservation *, unsigned);
+
+int bch2_mark_update(struct btree_trans *, struct btree_iter *,
+ struct bkey_i *, struct bch_fs_usage *, unsigned);
-void bch2_mark_key(struct bch_fs *, struct bkey_s_c, s64, bool, struct gc_pos,
- struct bch_fs_usage *, u64, unsigned);
+int bch2_replicas_delta_list_apply(struct bch_fs *,
+ struct bch_fs_usage *,
+ struct replicas_delta_list *);
+int bch2_trans_mark_key(struct btree_trans *, struct bkey_s_c,
+ unsigned, s64, unsigned);
+int bch2_trans_mark_update(struct btree_trans *, struct btree_iter *iter,
+ struct bkey_i *insert, unsigned);
+void bch2_trans_fs_usage_apply(struct btree_trans *, struct bch_fs_usage *);
-void bch2_recalc_sectors_available(struct bch_fs *);
+/* disk reservations: */
void __bch2_disk_reservation_put(struct bch_fs *, struct disk_reservation *);
}
#define BCH_DISK_RESERVATION_NOFAIL (1 << 0)
-#define BCH_DISK_RESERVATION_GC_LOCK_HELD (1 << 1)
-#define BCH_DISK_RESERVATION_BTREE_LOCKS_HELD (1 << 2)
int bch2_disk_reservation_add(struct bch_fs *,
struct disk_reservation *,
projects / bcachefs-tools-debian / blobdiff