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-rw-r--r--fs/bcachefs/buckets.c695
1 files changed, 459 insertions, 236 deletions
diff --git a/fs/bcachefs/buckets.c b/fs/bcachefs/buckets.c
index 941401a210f56..e28d28ac2a13d 100644
--- a/fs/bcachefs/buckets.c
+++ b/fs/bcachefs/buckets.c
@@ -274,25 +274,14 @@ void bch2_dev_usage_init(struct bch_dev *ca)
void bch2_dev_usage_to_text(struct printbuf *out, struct bch_dev_usage *usage)
{
- prt_tab(out);
- prt_str(out, "buckets");
- prt_tab_rjust(out);
- prt_str(out, "sectors");
- prt_tab_rjust(out);
- prt_str(out, "fragmented");
- prt_tab_rjust(out);
- prt_newline(out);
+ prt_printf(out, "\tbuckets\rsectors\rfragmented\r\n");
for (unsigned i = 0; i < BCH_DATA_NR; i++) {
bch2_prt_data_type(out, i);
- prt_tab(out);
- prt_u64(out, usage->d[i].buckets);
- prt_tab_rjust(out);
- prt_u64(out, usage->d[i].sectors);
- prt_tab_rjust(out);
- prt_u64(out, usage->d[i].fragmented);
- prt_tab_rjust(out);
- prt_newline(out);
+ prt_printf(out, "\t%llu\r%llu\r%llu\r\n",
+ usage->d[i].buckets,
+ usage->d[i].sectors,
+ usage->d[i].fragmented);
}
}
@@ -329,26 +318,6 @@ void bch2_dev_usage_update(struct bch_fs *c, struct bch_dev *ca,
preempt_enable();
}
-static inline struct bch_alloc_v4 bucket_m_to_alloc(struct bucket b)
-{
- return (struct bch_alloc_v4) {
- .gen = b.gen,
- .data_type = b.data_type,
- .dirty_sectors = b.dirty_sectors,
- .cached_sectors = b.cached_sectors,
- .stripe = b.stripe,
- };
-}
-
-void bch2_dev_usage_update_m(struct bch_fs *c, struct bch_dev *ca,
- struct bucket *old, struct bucket *new)
-{
- struct bch_alloc_v4 old_a = bucket_m_to_alloc(*old);
- struct bch_alloc_v4 new_a = bucket_m_to_alloc(*new);
-
- bch2_dev_usage_update(c, ca, &old_a, &new_a, 0, true);
-}
-
static inline int __update_replicas(struct bch_fs *c,
struct bch_fs_usage *fs_usage,
struct bch_replicas_entry_v1 *r,
@@ -496,79 +465,276 @@ int bch2_update_cached_sectors_list(struct btree_trans *trans, unsigned dev, s64
return bch2_update_replicas_list(trans, &r.e, sectors);
}
-int bch2_mark_metadata_bucket(struct bch_fs *c, struct bch_dev *ca,
- size_t b, enum bch_data_type data_type,
- unsigned sectors, struct gc_pos pos,
- unsigned flags)
+int bch2_check_fix_ptrs(struct btree_trans *trans,
+ enum btree_id btree, unsigned level, struct bkey_s_c k,
+ enum btree_iter_update_trigger_flags flags)
{
- struct bucket old, new, *g;
+ struct bch_fs *c = trans->c;
+ struct bkey_ptrs_c ptrs_c = bch2_bkey_ptrs_c(k);
+ const union bch_extent_entry *entry_c;
+ struct extent_ptr_decoded p = { 0 };
+ bool do_update = false;
+ struct printbuf buf = PRINTBUF;
int ret = 0;
- BUG_ON(!(flags & BTREE_TRIGGER_GC));
- BUG_ON(data_type != BCH_DATA_sb &&
- data_type != BCH_DATA_journal);
+ percpu_down_read(&c->mark_lock);
- /*
- * Backup superblock might be past the end of our normal usable space:
- */
- if (b >= ca->mi.nbuckets)
- return 0;
+ rcu_read_lock();
+ bkey_for_each_ptr_decode(k.k, ptrs_c, p, entry_c) {
+ struct bch_dev *ca = bch2_dev_rcu(c, p.ptr.dev);
+ if (!ca) {
+ if (fsck_err(c, ptr_to_invalid_device,
+ "pointer to missing device %u\n"
+ "while marking %s",
+ p.ptr.dev,
+ (printbuf_reset(&buf),
+ bch2_bkey_val_to_text(&buf, c, k), buf.buf)))
+ do_update = true;
+ continue;
+ }
- percpu_down_read(&c->mark_lock);
- g = gc_bucket(ca, b);
+ struct bucket *g = PTR_GC_BUCKET(ca, &p.ptr);
+ enum bch_data_type data_type = bch2_bkey_ptr_data_type(k, p, entry_c);
+
+ if (fsck_err_on(!g->gen_valid,
+ c, ptr_to_missing_alloc_key,
+ "bucket %u:%zu data type %s ptr gen %u missing in alloc btree\n"
+ "while marking %s",
+ p.ptr.dev, PTR_BUCKET_NR(ca, &p.ptr),
+ bch2_data_type_str(ptr_data_type(k.k, &p.ptr)),
+ p.ptr.gen,
+ (printbuf_reset(&buf),
+ bch2_bkey_val_to_text(&buf, c, k), buf.buf))) {
+ if (!p.ptr.cached) {
+ g->gen_valid = true;
+ g->gen = p.ptr.gen;
+ } else {
+ do_update = true;
+ }
+ }
- bucket_lock(g);
- old = *g;
+ if (fsck_err_on(gen_cmp(p.ptr.gen, g->gen) > 0,
+ c, ptr_gen_newer_than_bucket_gen,
+ "bucket %u:%zu data type %s ptr gen in the future: %u > %u\n"
+ "while marking %s",
+ p.ptr.dev, PTR_BUCKET_NR(ca, &p.ptr),
+ bch2_data_type_str(ptr_data_type(k.k, &p.ptr)),
+ p.ptr.gen, g->gen,
+ (printbuf_reset(&buf),
+ bch2_bkey_val_to_text(&buf, c, k), buf.buf))) {
+ if (!p.ptr.cached &&
+ (g->data_type != BCH_DATA_btree ||
+ data_type == BCH_DATA_btree)) {
+ g->gen_valid = true;
+ g->gen = p.ptr.gen;
+ g->data_type = 0;
+ g->dirty_sectors = 0;
+ g->cached_sectors = 0;
+ } else {
+ do_update = true;
+ }
+ }
- if (bch2_fs_inconsistent_on(g->data_type &&
- g->data_type != data_type, c,
- "different types of data in same bucket: %s, %s",
- bch2_data_type_str(g->data_type),
- bch2_data_type_str(data_type))) {
- BUG();
- ret = -EIO;
- goto err;
- }
+ if (fsck_err_on(gen_cmp(g->gen, p.ptr.gen) > BUCKET_GC_GEN_MAX,
+ c, ptr_gen_newer_than_bucket_gen,
+ "bucket %u:%zu gen %u data type %s: ptr gen %u too stale\n"
+ "while marking %s",
+ p.ptr.dev, PTR_BUCKET_NR(ca, &p.ptr), g->gen,
+ bch2_data_type_str(ptr_data_type(k.k, &p.ptr)),
+ p.ptr.gen,
+ (printbuf_reset(&buf),
+ bch2_bkey_val_to_text(&buf, c, k), buf.buf)))
+ do_update = true;
+
+ if (fsck_err_on(!p.ptr.cached && gen_cmp(p.ptr.gen, g->gen) < 0,
+ c, stale_dirty_ptr,
+ "bucket %u:%zu data type %s stale dirty ptr: %u < %u\n"
+ "while marking %s",
+ p.ptr.dev, PTR_BUCKET_NR(ca, &p.ptr),
+ bch2_data_type_str(ptr_data_type(k.k, &p.ptr)),
+ p.ptr.gen, g->gen,
+ (printbuf_reset(&buf),
+ bch2_bkey_val_to_text(&buf, c, k), buf.buf)))
+ do_update = true;
+
+ if (data_type != BCH_DATA_btree && p.ptr.gen != g->gen)
+ continue;
+
+ if (fsck_err_on(bucket_data_type_mismatch(g->data_type, data_type),
+ c, ptr_bucket_data_type_mismatch,
+ "bucket %u:%zu gen %u different types of data in same bucket: %s, %s\n"
+ "while marking %s",
+ p.ptr.dev, PTR_BUCKET_NR(ca, &p.ptr), g->gen,
+ bch2_data_type_str(g->data_type),
+ bch2_data_type_str(data_type),
+ (printbuf_reset(&buf),
+ bch2_bkey_val_to_text(&buf, c, k), buf.buf))) {
+ if (data_type == BCH_DATA_btree) {
+ g->gen_valid = true;
+ g->gen = p.ptr.gen;
+ g->data_type = data_type;
+ g->dirty_sectors = 0;
+ g->cached_sectors = 0;
+ } else {
+ do_update = true;
+ }
+ }
- if (bch2_fs_inconsistent_on((u64) g->dirty_sectors + sectors > ca->mi.bucket_size, c,
- "bucket %u:%zu gen %u data type %s sector count overflow: %u + %u > bucket size",
- ca->dev_idx, b, g->gen,
- bch2_data_type_str(g->data_type ?: data_type),
- g->dirty_sectors, sectors)) {
- ret = -EIO;
- goto err;
+ if (p.has_ec) {
+ struct gc_stripe *m = genradix_ptr(&c->gc_stripes, p.ec.idx);
+
+ if (fsck_err_on(!m || !m->alive, c,
+ ptr_to_missing_stripe,
+ "pointer to nonexistent stripe %llu\n"
+ "while marking %s",
+ (u64) p.ec.idx,
+ (printbuf_reset(&buf),
+ bch2_bkey_val_to_text(&buf, c, k), buf.buf)))
+ do_update = true;
+
+ if (fsck_err_on(m && m->alive && !bch2_ptr_matches_stripe_m(m, p), c,
+ ptr_to_incorrect_stripe,
+ "pointer does not match stripe %llu\n"
+ "while marking %s",
+ (u64) p.ec.idx,
+ (printbuf_reset(&buf),
+ bch2_bkey_val_to_text(&buf, c, k), buf.buf)))
+ do_update = true;
+ }
}
+ rcu_read_unlock();
- g->data_type = data_type;
- g->dirty_sectors += sectors;
- new = *g;
+ if (do_update) {
+ if (flags & BTREE_TRIGGER_is_root) {
+ bch_err(c, "cannot update btree roots yet");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ struct bkey_i *new = bch2_bkey_make_mut_noupdate(trans, k);
+ ret = PTR_ERR_OR_ZERO(new);
+ if (ret)
+ goto err;
+
+ rcu_read_lock();
+ bch2_bkey_drop_ptrs(bkey_i_to_s(new), ptr, !bch2_dev_rcu(c, ptr->dev));
+ rcu_read_unlock();
+
+ if (level) {
+ /*
+ * We don't want to drop btree node pointers - if the
+ * btree node isn't there anymore, the read path will
+ * sort it out:
+ */
+ struct bkey_ptrs ptrs = bch2_bkey_ptrs(bkey_i_to_s(new));
+ rcu_read_lock();
+ bkey_for_each_ptr(ptrs, ptr) {
+ struct bch_dev *ca = bch2_dev_rcu(c, ptr->dev);
+ struct bucket *g = PTR_GC_BUCKET(ca, ptr);
+
+ ptr->gen = g->gen;
+ }
+ rcu_read_unlock();
+ } else {
+ struct bkey_ptrs ptrs;
+ union bch_extent_entry *entry;
+restart_drop_ptrs:
+ ptrs = bch2_bkey_ptrs(bkey_i_to_s(new));
+ rcu_read_lock();
+ bkey_for_each_ptr_decode(bkey_i_to_s(new).k, ptrs, p, entry) {
+ struct bch_dev *ca = bch2_dev_rcu(c, p.ptr.dev);
+ struct bucket *g = PTR_GC_BUCKET(ca, &p.ptr);
+ enum bch_data_type data_type = bch2_bkey_ptr_data_type(bkey_i_to_s_c(new), p, entry);
+
+ if ((p.ptr.cached &&
+ (!g->gen_valid || gen_cmp(p.ptr.gen, g->gen) > 0)) ||
+ (!p.ptr.cached &&
+ gen_cmp(p.ptr.gen, g->gen) < 0) ||
+ gen_cmp(g->gen, p.ptr.gen) > BUCKET_GC_GEN_MAX ||
+ (g->data_type &&
+ g->data_type != data_type)) {
+ bch2_bkey_drop_ptr(bkey_i_to_s(new), &entry->ptr);
+ goto restart_drop_ptrs;
+ }
+ }
+ rcu_read_unlock();
+again:
+ ptrs = bch2_bkey_ptrs(bkey_i_to_s(new));
+ bkey_extent_entry_for_each(ptrs, entry) {
+ if (extent_entry_type(entry) == BCH_EXTENT_ENTRY_stripe_ptr) {
+ struct gc_stripe *m = genradix_ptr(&c->gc_stripes,
+ entry->stripe_ptr.idx);
+ union bch_extent_entry *next_ptr;
+
+ bkey_extent_entry_for_each_from(ptrs, next_ptr, entry)
+ if (extent_entry_type(next_ptr) == BCH_EXTENT_ENTRY_ptr)
+ goto found;
+ next_ptr = NULL;
+found:
+ if (!next_ptr) {
+ bch_err(c, "aieee, found stripe ptr with no data ptr");
+ continue;
+ }
+
+ if (!m || !m->alive ||
+ !__bch2_ptr_matches_stripe(&m->ptrs[entry->stripe_ptr.block],
+ &next_ptr->ptr,
+ m->sectors)) {
+ bch2_bkey_extent_entry_drop(new, entry);
+ goto again;
+ }
+ }
+ }
+ }
+
+ if (0) {
+ printbuf_reset(&buf);
+ bch2_bkey_val_to_text(&buf, c, k);
+ bch_info(c, "updated %s", buf.buf);
+
+ printbuf_reset(&buf);
+ bch2_bkey_val_to_text(&buf, c, bkey_i_to_s_c(new));
+ bch_info(c, "new key %s", buf.buf);
+ }
+
+ percpu_up_read(&c->mark_lock);
+ struct btree_iter iter;
+ bch2_trans_node_iter_init(trans, &iter, btree, new->k.p, 0, level,
+ BTREE_ITER_intent|BTREE_ITER_all_snapshots);
+ ret = bch2_btree_iter_traverse(&iter) ?:
+ bch2_trans_update(trans, &iter, new,
+ BTREE_UPDATE_internal_snapshot_node|
+ BTREE_TRIGGER_norun);
+ bch2_trans_iter_exit(trans, &iter);
+ percpu_down_read(&c->mark_lock);
+
+ if (ret)
+ goto err;
+
+ if (level)
+ bch2_btree_node_update_key_early(trans, btree, level - 1, k, new);
+ }
err:
- bucket_unlock(g);
- if (!ret)
- bch2_dev_usage_update_m(c, ca, &old, &new);
+fsck_err:
percpu_up_read(&c->mark_lock);
+ printbuf_exit(&buf);
return ret;
}
-int bch2_check_bucket_ref(struct btree_trans *trans,
- struct bkey_s_c k,
- const struct bch_extent_ptr *ptr,
- s64 sectors, enum bch_data_type ptr_data_type,
- u8 b_gen, u8 bucket_data_type,
- u32 bucket_sectors)
+int bch2_bucket_ref_update(struct btree_trans *trans, struct bch_dev *ca,
+ struct bkey_s_c k,
+ const struct bch_extent_ptr *ptr,
+ s64 sectors, enum bch_data_type ptr_data_type,
+ u8 b_gen, u8 bucket_data_type,
+ u32 *bucket_sectors)
{
struct bch_fs *c = trans->c;
- struct bch_dev *ca = bch_dev_bkey_exists(c, ptr->dev);
size_t bucket_nr = PTR_BUCKET_NR(ca, ptr);
struct printbuf buf = PRINTBUF;
+ bool inserting = sectors > 0;
int ret = 0;
- if (bucket_data_type == BCH_DATA_cached)
- bucket_data_type = BCH_DATA_user;
-
- if ((bucket_data_type == BCH_DATA_stripe && ptr_data_type == BCH_DATA_user) ||
- (bucket_data_type == BCH_DATA_user && ptr_data_type == BCH_DATA_stripe))
- bucket_data_type = ptr_data_type = BCH_DATA_stripe;
+ BUG_ON(!sectors);
if (gen_after(ptr->gen, b_gen)) {
bch2_fsck_err(c, FSCK_CAN_IGNORE|FSCK_NEED_FSCK,
@@ -579,8 +745,9 @@ int bch2_check_bucket_ref(struct btree_trans *trans,
bch2_data_type_str(bucket_data_type ?: ptr_data_type),
ptr->gen,
(bch2_bkey_val_to_text(&buf, c, k), buf.buf));
- ret = -EIO;
- goto err;
+ if (inserting)
+ goto err;
+ goto out;
}
if (gen_cmp(b_gen, ptr->gen) > BUCKET_GC_GEN_MAX) {
@@ -593,11 +760,17 @@ int bch2_check_bucket_ref(struct btree_trans *trans,
ptr->gen,
(printbuf_reset(&buf),
bch2_bkey_val_to_text(&buf, c, k), buf.buf));
- ret = -EIO;
- goto err;
+ if (inserting)
+ goto err;
+ goto out;
}
- if (b_gen != ptr->gen && !ptr->cached) {
+ if (b_gen != ptr->gen && ptr->cached) {
+ ret = 1;
+ goto out;
+ }
+
+ if (b_gen != ptr->gen) {
bch2_fsck_err(c, FSCK_CAN_IGNORE|FSCK_NEED_FSCK,
BCH_FSCK_ERR_stale_dirty_ptr,
"bucket %u:%zu gen %u (mem gen %u) data type %s: stale dirty ptr (gen %u)\n"
@@ -608,18 +781,12 @@ int bch2_check_bucket_ref(struct btree_trans *trans,
ptr->gen,
(printbuf_reset(&buf),
bch2_bkey_val_to_text(&buf, c, k), buf.buf));
- ret = -EIO;
- goto err;
- }
-
- if (b_gen != ptr->gen) {
- ret = 1;
+ if (inserting)
+ goto err;
goto out;
}
- if (!data_type_is_empty(bucket_data_type) &&
- ptr_data_type &&
- bucket_data_type != ptr_data_type) {
+ if (bucket_data_type_mismatch(bucket_data_type, ptr_data_type)) {
bch2_fsck_err(c, FSCK_CAN_IGNORE|FSCK_NEED_FSCK,
BCH_FSCK_ERR_ptr_bucket_data_type_mismatch,
"bucket %u:%zu gen %u different types of data in same bucket: %s, %s\n"
@@ -629,29 +796,33 @@ int bch2_check_bucket_ref(struct btree_trans *trans,
bch2_data_type_str(ptr_data_type),
(printbuf_reset(&buf),
bch2_bkey_val_to_text(&buf, c, k), buf.buf));
- BUG();
- ret = -EIO;
- goto err;
+ if (inserting)
+ goto err;
+ goto out;
}
- if ((u64) bucket_sectors + sectors > U32_MAX) {
+ if ((u64) *bucket_sectors + sectors > U32_MAX) {
bch2_fsck_err(c, FSCK_CAN_IGNORE|FSCK_NEED_FSCK,
BCH_FSCK_ERR_bucket_sector_count_overflow,
"bucket %u:%zu gen %u data type %s sector count overflow: %u + %lli > U32_MAX\n"
"while marking %s",
ptr->dev, bucket_nr, b_gen,
bch2_data_type_str(bucket_data_type ?: ptr_data_type),
- bucket_sectors, sectors,
+ *bucket_sectors, sectors,
(printbuf_reset(&buf),
bch2_bkey_val_to_text(&buf, c, k), buf.buf));
- ret = -EIO;
- goto err;
+ if (inserting)
+ goto err;
+ sectors = -*bucket_sectors;
}
+
+ *bucket_sectors += sectors;
out:
printbuf_exit(&buf);
return ret;
err:
bch2_dump_trans_updates(trans);
+ ret = -EIO;
goto out;
}
@@ -788,29 +959,22 @@ need_mark:
/* KEY_TYPE_extent: */
-static int __mark_pointer(struct btree_trans *trans,
+static int __mark_pointer(struct btree_trans *trans, struct bch_dev *ca,
struct bkey_s_c k,
const struct bch_extent_ptr *ptr,
s64 sectors, enum bch_data_type ptr_data_type,
- u8 bucket_gen, u8 *bucket_data_type,
- u32 *dirty_sectors, u32 *cached_sectors)
+ struct bch_alloc_v4 *a)
{
u32 *dst_sectors = !ptr->cached
- ? dirty_sectors
- : cached_sectors;
- int ret = bch2_check_bucket_ref(trans, k, ptr, sectors, ptr_data_type,
- bucket_gen, *bucket_data_type, *dst_sectors);
+ ? &a->dirty_sectors
+ : &a->cached_sectors;
+ int ret = bch2_bucket_ref_update(trans, ca, k, ptr, sectors, ptr_data_type,
+ a->gen, a->data_type, dst_sectors);
if (ret)
return ret;
- *dst_sectors += sectors;
-
- if (!*dirty_sectors && !*cached_sectors)
- *bucket_data_type = 0;
- else if (*bucket_data_type != BCH_DATA_stripe)
- *bucket_data_type = ptr_data_type;
-
+ alloc_data_type_set(a, ptr_data_type);
return 0;
}
@@ -818,81 +982,69 @@ static int bch2_trigger_pointer(struct btree_trans *trans,
enum btree_id btree_id, unsigned level,
struct bkey_s_c k, struct extent_ptr_decoded p,
const union bch_extent_entry *entry,
- s64 *sectors, unsigned flags)
+ s64 *sectors,
+ enum btree_iter_update_trigger_flags flags)
{
- bool insert = !(flags & BTREE_TRIGGER_OVERWRITE);
+ bool insert = !(flags & BTREE_TRIGGER_overwrite);
+ int ret = 0;
+
+ struct bch_fs *c = trans->c;
+ struct bch_dev *ca = bch2_dev_tryget(c, p.ptr.dev);
+ if (unlikely(!ca)) {
+ if (insert)
+ ret = -EIO;
+ goto err;
+ }
+
struct bpos bucket;
struct bch_backpointer bp;
-
- bch2_extent_ptr_to_bp(trans->c, btree_id, level, k, p, entry, &bucket, &bp);
+ bch2_extent_ptr_to_bp(trans->c, ca, btree_id, level, k, p, entry, &bucket, &bp);
*sectors = insert ? bp.bucket_len : -((s64) bp.bucket_len);
- if (flags & BTREE_TRIGGER_TRANSACTIONAL) {
- struct btree_iter iter;
- struct bkey_i_alloc_v4 *a = bch2_trans_start_alloc_update(trans, &iter, bucket);
- int ret = PTR_ERR_OR_ZERO(a);
+ if (flags & BTREE_TRIGGER_transactional) {
+ struct bkey_i_alloc_v4 *a = bch2_trans_start_alloc_update(trans, bucket);
+ ret = PTR_ERR_OR_ZERO(a) ?:
+ __mark_pointer(trans, ca, k, &p.ptr, *sectors, bp.data_type, &a->v);
if (ret)
- return ret;
-
- ret = __mark_pointer(trans, k, &p.ptr, *sectors, bp.data_type,
- a->v.gen, &a->v.data_type,
- &a->v.dirty_sectors, &a->v.cached_sectors) ?:
- bch2_trans_update(trans, &iter, &a->k_i, 0);
- bch2_trans_iter_exit(trans, &iter);
-
- if (ret)
- return ret;
+ goto err;
if (!p.ptr.cached) {
- ret = bch2_bucket_backpointer_mod(trans, bucket, bp, k, insert);
+ ret = bch2_bucket_backpointer_mod(trans, ca, bucket, bp, k, insert);
if (ret)
- return ret;
+ goto err;
}
}
- if (flags & BTREE_TRIGGER_GC) {
- struct bch_fs *c = trans->c;
- struct bch_dev *ca = bch_dev_bkey_exists(c, p.ptr.dev);
- enum bch_data_type data_type = bch2_bkey_ptr_data_type(k, p, entry);
-
+ if (flags & BTREE_TRIGGER_gc) {
percpu_down_read(&c->mark_lock);
- struct bucket *g = PTR_GC_BUCKET(ca, &p.ptr);
+ struct bucket *g = gc_bucket(ca, bucket.offset);
bucket_lock(g);
- struct bucket old = *g;
-
- u8 bucket_data_type = g->data_type;
- int ret = __mark_pointer(trans, k, &p.ptr, *sectors,
- data_type, g->gen,
- &bucket_data_type,
- &g->dirty_sectors,
- &g->cached_sectors);
- if (ret) {
- bucket_unlock(g);
- percpu_up_read(&c->mark_lock);
- return ret;
+ struct bch_alloc_v4 old = bucket_m_to_alloc(*g), new = old;
+ ret = __mark_pointer(trans, ca, k, &p.ptr, *sectors, bp.data_type, &new);
+ if (!ret) {
+ alloc_to_bucket(g, new);
+ bch2_dev_usage_update(c, ca, &old, &new, 0, true);
}
-
- g->data_type = bucket_data_type;
- struct bucket new = *g;
bucket_unlock(g);
- bch2_dev_usage_update_m(c, ca, &old, &new);
percpu_up_read(&c->mark_lock);
}
-
- return 0;
+err:
+ bch2_dev_put(ca);
+ return ret;
}
static int bch2_trigger_stripe_ptr(struct btree_trans *trans,
struct bkey_s_c k,
struct extent_ptr_decoded p,
enum bch_data_type data_type,
- s64 sectors, unsigned flags)
+ s64 sectors,
+ enum btree_iter_update_trigger_flags flags)
{
- if (flags & BTREE_TRIGGER_TRANSACTIONAL) {
+ if (flags & BTREE_TRIGGER_transactional) {
struct btree_iter iter;
struct bkey_i_stripe *s = bch2_bkey_get_mut_typed(trans, &iter,
BTREE_ID_stripes, POS(0, p.ec.idx),
- BTREE_ITER_WITH_UPDATES, stripe);
+ BTREE_ITER_with_updates, stripe);
int ret = PTR_ERR_OR_ZERO(s);
if (unlikely(ret)) {
bch2_trans_inconsistent_on(bch2_err_matches(ret, ENOENT), trans,
@@ -922,10 +1074,10 @@ err:
return ret;
}
- if (flags & BTREE_TRIGGER_GC) {
+ if (flags & BTREE_TRIGGER_gc) {
struct bch_fs *c = trans->c;
- BUG_ON(!(flags & BTREE_TRIGGER_GC));
+ BUG_ON(!(flags & BTREE_TRIGGER_gc));
struct gc_stripe *m = genradix_ptr_alloc(&c->gc_stripes, p.ec.idx, GFP_KERNEL);
if (!m) {
@@ -961,9 +1113,10 @@ err:
static int __trigger_extent(struct btree_trans *trans,
enum btree_id btree_id, unsigned level,
- struct bkey_s_c k, unsigned flags)
+ struct bkey_s_c k,
+ enum btree_iter_update_trigger_flags flags)
{
- bool gc = flags & BTREE_TRIGGER_GC;
+ bool gc = flags & BTREE_TRIGGER_gc;
struct bch_fs *c = trans->c;
struct bkey_ptrs_c ptrs = bch2_bkey_ptrs_c(k);
const union bch_extent_entry *entry;
@@ -972,7 +1125,7 @@ static int __trigger_extent(struct btree_trans *trans,
enum bch_data_type data_type = bkey_is_btree_ptr(k.k)
? BCH_DATA_btree
: BCH_DATA_user;
- s64 dirty_sectors = 0;
+ s64 replicas_sectors = 0;
int ret = 0;
r.e.data_type = data_type;
@@ -998,7 +1151,7 @@ static int __trigger_extent(struct btree_trans *trans,
return ret;
}
} else if (!p.has_ec) {
- dirty_sectors += disk_sectors;
+ replicas_sectors += disk_sectors;
r.e.devs[r.e.nr_devs++] = p.ptr.dev;
} else {
ret = bch2_trigger_stripe_ptr(trans, k, p, data_type, disk_sectors, flags);
@@ -1016,8 +1169,8 @@ static int __trigger_extent(struct btree_trans *trans,
if (r.e.nr_devs) {
ret = !gc
- ? bch2_update_replicas_list(trans, &r.e, dirty_sectors)
- : bch2_update_replicas(c, k, &r.e, dirty_sectors, 0, true);
+ ? bch2_update_replicas_list(trans, &r.e, replicas_sectors)
+ : bch2_update_replicas(c, k, &r.e, replicas_sectors, 0, true);
if (unlikely(ret && gc)) {
struct printbuf buf = PRINTBUF;
@@ -1033,15 +1186,18 @@ static int __trigger_extent(struct btree_trans *trans,
}
int bch2_trigger_extent(struct btree_trans *trans,
- enum btree_id btree_id, unsigned level,
+ enum btree_id btree, unsigned level,
struct bkey_s_c old, struct bkey_s new,
- unsigned flags)
+ enum btree_iter_update_trigger_flags flags)
{
struct bkey_ptrs_c new_ptrs = bch2_bkey_ptrs_c(new.s_c);
struct bkey_ptrs_c old_ptrs = bch2_bkey_ptrs_c(old);
unsigned new_ptrs_bytes = (void *) new_ptrs.end - (void *) new_ptrs.start;
unsigned old_ptrs_bytes = (void *) old_ptrs.end - (void *) old_ptrs.start;
+ if (unlikely(flags & BTREE_TRIGGER_check_repair))
+ return bch2_check_fix_ptrs(trans, btree, level, new.s_c, flags);
+
/* if pointers aren't changing - nothing to do: */
if (new_ptrs_bytes == old_ptrs_bytes &&
!memcmp(new_ptrs.start,
@@ -1049,7 +1205,7 @@ int bch2_trigger_extent(struct btree_trans *trans,
new_ptrs_bytes))
return 0;
- if (flags & BTREE_TRIGGER_TRANSACTIONAL) {
+ if (flags & BTREE_TRIGGER_transactional) {
struct bch_fs *c = trans->c;
int mod = (int) bch2_bkey_needs_rebalance(c, new.s_c) -
(int) bch2_bkey_needs_rebalance(c, old);
@@ -1062,8 +1218,8 @@ int bch2_trigger_extent(struct btree_trans *trans,
}
}
- if (flags & (BTREE_TRIGGER_TRANSACTIONAL|BTREE_TRIGGER_GC))
- return trigger_run_overwrite_then_insert(__trigger_extent, trans, btree_id, level, old, new, flags);
+ if (flags & (BTREE_TRIGGER_transactional|BTREE_TRIGGER_gc))
+ return trigger_run_overwrite_then_insert(__trigger_extent, trans, btree, level, old, new, flags);
return 0;
}
@@ -1071,17 +1227,17 @@ int bch2_trigger_extent(struct btree_trans *trans,
/* KEY_TYPE_reservation */
static int __trigger_reservation(struct btree_trans *trans,
- enum btree_id btree_id, unsigned level,
- struct bkey_s_c k, unsigned flags)
+ enum btree_id btree_id, unsigned level, struct bkey_s_c k,
+ enum btree_iter_update_trigger_flags flags)
{
struct bch_fs *c = trans->c;
unsigned replicas = bkey_s_c_to_reservation(k).v->nr_replicas;
s64 sectors = (s64) k.k->size * replicas;
- if (flags & BTREE_TRIGGER_OVERWRITE)
+ if (flags & BTREE_TRIGGER_overwrite)
sectors = -sectors;
- if (flags & BTREE_TRIGGER_TRANSACTIONAL) {
+ if (flags & BTREE_TRIGGER_transactional) {
int ret = bch2_replicas_deltas_realloc(trans, 0);
if (ret)
return ret;
@@ -1092,7 +1248,7 @@ static int __trigger_reservation(struct btree_trans *trans,
d->persistent_reserved[replicas - 1] += sectors;
}
- if (flags & BTREE_TRIGGER_GC) {
+ if (flags & BTREE_TRIGGER_gc) {
percpu_down_read(&c->mark_lock);
preempt_disable();
@@ -1112,7 +1268,7 @@ static int __trigger_reservation(struct btree_trans *trans,
int bch2_trigger_reservation(struct btree_trans *trans,
enum btree_id btree_id, unsigned level,
struct bkey_s_c old, struct bkey_s new,
- unsigned flags)
+ enum btree_iter_update_trigger_flags flags)
{
return trigger_run_overwrite_then_insert(__trigger_reservation, trans, btree_id, level, old, new, flags);
}
@@ -1120,22 +1276,16 @@ int bch2_trigger_reservation(struct btree_trans *trans,
/* Mark superblocks: */
static int __bch2_trans_mark_metadata_bucket(struct btree_trans *trans,
- struct bch_dev *ca, size_t b,
+ struct bch_dev *ca, u64 b,
enum bch_data_type type,
unsigned sectors)
{
struct bch_fs *c = trans->c;
struct btree_iter iter;
- struct bkey_i_alloc_v4 *a;
int ret = 0;
- /*
- * Backup superblock might be past the end of our normal usable space:
- */
- if (b >= ca->mi.nbuckets)
- return 0;
-
- a = bch2_trans_start_alloc_update(trans, &iter, POS(ca->dev_idx, b));
+ struct bkey_i_alloc_v4 *a =
+ bch2_trans_start_alloc_update_noupdate(trans, &iter, POS(ca->dev_idx, b));
if (IS_ERR(a))
return PTR_ERR(a);
@@ -1163,20 +1313,75 @@ err:
return ret;
}
+static int bch2_mark_metadata_bucket(struct bch_fs *c, struct bch_dev *ca,
+ u64 b, enum bch_data_type data_type, unsigned sectors,
+ enum btree_iter_update_trigger_flags flags)
+{
+ int ret = 0;
+
+ percpu_down_read(&c->mark_lock);
+ struct bucket *g = gc_bucket(ca, b);
+
+ bucket_lock(g);
+ struct bch_alloc_v4 old = bucket_m_to_alloc(*g);
+
+ if (bch2_fs_inconsistent_on(g->data_type &&
+ g->data_type != data_type, c,
+ "different types of data in same bucket: %s, %s",
+ bch2_data_type_str(g->data_type),
+ bch2_data_type_str(data_type))) {
+ ret = -EIO;
+ goto err;
+ }
+
+ if (bch2_fs_inconsistent_on((u64) g->dirty_sectors + sectors > ca->mi.bucket_size, c,
+ "bucket %u:%llu gen %u data type %s sector count overflow: %u + %u > bucket size",
+ ca->dev_idx, b, g->gen,
+ bch2_data_type_str(g->data_type ?: data_type),
+ g->dirty_sectors, sectors)) {
+ ret = -EIO;
+ goto err;
+ }
+
+ g->data_type = data_type;
+ g->dirty_sectors += sectors;
+ struct bch_alloc_v4 new = bucket_m_to_alloc(*g);
+err:
+ bucket_unlock(g);
+ if (!ret)
+ bch2_dev_usage_update(c, ca, &old, &new, 0, true);
+ percpu_up_read(&c->mark_lock);
+ return ret;
+}
+
int bch2_trans_mark_metadata_bucket(struct btree_trans *trans,
- struct bch_dev *ca, size_t b,
- enum bch_data_type type,
- unsigned sectors)
+ struct bch_dev *ca, u64 b,
+ enum bch_data_type type, unsigned sectors,
+ enum btree_iter_update_trigger_flags flags)
{
- return commit_do(trans, NULL, NULL, 0,
- __bch2_trans_mark_metadata_bucket(trans, ca, b, type, sectors));
+ BUG_ON(type != BCH_DATA_free &&
+ type != BCH_DATA_sb &&
+ type != BCH_DATA_journal);
+
+ /*
+ * Backup superblock might be past the end of our normal usable space:
+ */
+ if (b >= ca->mi.nbuckets)
+ return 0;
+
+ if (flags & BTREE_TRIGGER_gc)
+ return bch2_mark_metadata_bucket(trans->c, ca, b, type, sectors, flags);
+ else if (flags & BTREE_TRIGGER_transactional)
+ return commit_do(trans, NULL, NULL, 0,
+ __bch2_trans_mark_metadata_bucket(trans, ca, b, type, sectors));
+ else
+ BUG();
}
static int bch2_trans_mark_metadata_sectors(struct btree_trans *trans,
- struct bch_dev *ca,
- u64 start, u64 end,
- enum bch_data_type type,
- u64 *bucket, unsigned *bucket_sectors)
+ struct bch_dev *ca, u64 start, u64 end,
+ enum bch_data_type type, u64 *bucket, unsigned *bucket_sectors,
+ enum btree_iter_update_trigger_flags flags)
{
do {
u64 b = sector_to_bucket(ca, start);
@@ -1185,7 +1390,7 @@ static int bch2_trans_mark_metadata_sectors(struct btree_trans *trans,
if (b != *bucket && *bucket_sectors) {
int ret = bch2_trans_mark_metadata_bucket(trans, ca, *bucket,
- type, *bucket_sectors);
+ type, *bucket_sectors, flags);
if (ret)
return ret;
@@ -1200,8 +1405,8 @@ static int bch2_trans_mark_metadata_sectors(struct btree_trans *trans,
return 0;
}
-static int __bch2_trans_mark_dev_sb(struct btree_trans *trans,
- struct bch_dev *ca)
+static int __bch2_trans_mark_dev_sb(struct btree_trans *trans, struct bch_dev *ca,
+ enum btree_iter_update_trigger_flags flags)
{
struct bch_sb_layout *layout = &ca->disk_sb.sb->layout;
u64 bucket = 0;
@@ -1214,21 +1419,21 @@ static int __bch2_trans_mark_dev_sb(struct btree_trans *trans,
if (offset == BCH_SB_SECTOR) {
ret = bch2_trans_mark_metadata_sectors(trans, ca,
0, BCH_SB_SECTOR,
- BCH_DATA_sb, &bucket, &bucket_sectors);
+ BCH_DATA_sb, &bucket, &bucket_sectors, flags);
if (ret)
return ret;
}
ret = bch2_trans_mark_metadata_sectors(trans, ca, offset,
offset + (1 << layout->sb_max_size_bits),
- BCH_DATA_sb, &bucket, &bucket_sectors);
+ BCH_DATA_sb, &bucket, &bucket_sectors, flags);
if (ret)
return ret;
}
if (bucket_sectors) {
ret = bch2_trans_mark_metadata_bucket(trans, ca,
- bucket, BCH_DATA_sb, bucket_sectors);
+ bucket, BCH_DATA_sb, bucket_sectors, flags);
if (ret)
return ret;
}
@@ -1236,7 +1441,7 @@ static int __bch2_trans_mark_dev_sb(struct btree_trans *trans,
for (i = 0; i < ca->journal.nr; i++) {
ret = bch2_trans_mark_metadata_bucket(trans, ca,
ca->journal.buckets[i],
- BCH_DATA_journal, ca->mi.bucket_size);
+ BCH_DATA_journal, ca->mi.bucket_size, flags);
if (ret)
return ret;
}
@@ -1244,20 +1449,22 @@ static int __bch2_trans_mark_dev_sb(struct btree_trans *trans,
return 0;
}
-int bch2_trans_mark_dev_sb(struct bch_fs *c, struct bch_dev *ca)
+int bch2_trans_mark_dev_sb(struct bch_fs *c, struct bch_dev *ca,
+ enum btree_iter_update_trigger_flags flags)
{
- int ret = bch2_trans_run(c, __bch2_trans_mark_dev_sb(trans, ca));
-
+ int ret = bch2_trans_run(c,
+ __bch2_trans_mark_dev_sb(trans, ca, flags));
bch_err_fn(c, ret);
return ret;
}
-int bch2_trans_mark_dev_sbs(struct bch_fs *c)
+int bch2_trans_mark_dev_sbs_flags(struct bch_fs *c,
+ enum btree_iter_update_trigger_flags flags)
{
for_each_online_member(c, ca) {
- int ret = bch2_trans_mark_dev_sb(c, ca);
+ int ret = bch2_trans_mark_dev_sb(c, ca, flags);
if (ret) {
- percpu_ref_put(&ca->ref);
+ bch2_dev_put(ca);
return ret;
}
}
@@ -1265,6 +1472,11 @@ int bch2_trans_mark_dev_sbs(struct bch_fs *c)
return 0;
}
+int bch2_trans_mark_dev_sbs(struct bch_fs *c)
+{
+ return bch2_trans_mark_dev_sbs_flags(c, BTREE_TRIGGER_transactional);
+}
+
/* Disk reservations: */
#define SECTORS_CACHE 1024
@@ -1333,6 +1545,31 @@ recalculate:
/* Startup/shutdown: */
+void bch2_buckets_nouse_free(struct bch_fs *c)
+{
+ for_each_member_device(c, ca) {
+ kvfree_rcu_mightsleep(ca->buckets_nouse);
+ ca->buckets_nouse = NULL;
+ }
+}
+
+int bch2_buckets_nouse_alloc(struct bch_fs *c)
+{
+ for_each_member_device(c, ca) {
+ BUG_ON(ca->buckets_nouse);
+
+ ca->buckets_nouse = kvmalloc(BITS_TO_LONGS(ca->mi.nbuckets) *
+ sizeof(unsigned long),
+ GFP_KERNEL|__GFP_ZERO);
+ if (!ca->buckets_nouse) {
+ bch2_dev_put(ca);
+ return -BCH_ERR_ENOMEM_buckets_nouse;
+ }
+ }
+
+ return 0;
+}
+
static void bucket_gens_free_rcu(struct rcu_head *rcu)
{
struct bucket_gens *buckets =
@@ -1344,24 +1581,17 @@ static void bucket_gens_free_rcu(struct rcu_head *rcu)
int bch2_dev_buckets_resize(struct bch_fs *c, struct bch_dev *ca, u64 nbuckets)
{
struct bucket_gens *bucket_gens = NULL, *old_bucket_gens = NULL;
- unsigned long *buckets_nouse = NULL;
bool resize = ca->bucket_gens != NULL;
int ret;
+ BUG_ON(resize && ca->buckets_nouse);
+
if (!(bucket_gens = kvmalloc(sizeof(struct bucket_gens) + nbuckets,
GFP_KERNEL|__GFP_ZERO))) {
ret = -BCH_ERR_ENOMEM_bucket_gens;
goto err;
}
- if ((c->opts.buckets_nouse &&
- !(buckets_nouse = kvmalloc(BITS_TO_LONGS(nbuckets) *
- sizeof(unsigned long),
- GFP_KERNEL|__GFP_ZERO)))) {
- ret = -BCH_ERR_ENOMEM_buckets_nouse;
- goto err;
- }
-
bucket_gens->first_bucket = ca->mi.first_bucket;
bucket_gens->nbuckets = nbuckets;
@@ -1379,17 +1609,11 @@ int bch2_dev_buckets_resize(struct bch_fs *c, struct bch_dev *ca, u64 nbuckets)
memcpy(bucket_gens->b,
old_bucket_gens->b,
n);
- if (buckets_nouse)
- memcpy(buckets_nouse,
- ca->buckets_nouse,
- BITS_TO_LONGS(n) * sizeof(unsigned long));
}
rcu_assign_pointer(ca->bucket_gens, bucket_gens);
bucket_gens = old_bucket_gens;
- swap(ca->buckets_nouse, buckets_nouse);
-
nbuckets = ca->mi.nbuckets;
if (resize) {
@@ -1400,7 +1624,6 @@ int bch2_dev_buckets_resize(struct bch_fs *c, struct bch_dev *ca, u64 nbuckets)
ret = 0;
err:
- kvfree(buckets_nouse);
if (bucket_gens)
call_rcu(&bucket_gens->rcu, bucket_gens_free_rcu);
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-19 23:11:39 +0000