diff options
Diffstat (limited to 'fs/bcachefs/backpointers.h')
| -rw-r--r-- | fs/bcachefs/backpointers.h | 43 |
1 files changed, 36 insertions, 7 deletions
diff --git a/fs/bcachefs/backpointers.h b/fs/bcachefs/backpointers.h index 060dad1521ee..7e71afee1ac0 100644 --- a/fs/bcachefs/backpointers.h +++ b/fs/bcachefs/backpointers.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _BCACHEFS_BACKPOINTERS_BACKGROUND_H -#define _BCACHEFS_BACKPOINTERS_BACKGROUND_H +#ifndef _BCACHEFS_BACKPOINTERS_H +#define _BCACHEFS_BACKPOINTERS_H #include "btree_cache.h" #include "btree_iter.h" @@ -53,11 +53,10 @@ static inline struct bpos bp_pos_to_bucket_and_offset(const struct bch_dev *ca, static inline bool bp_pos_to_bucket_nodev_noerror(struct bch_fs *c, struct bpos bp_pos, struct bpos *bucket) { - rcu_read_lock(); + guard(rcu)(); struct bch_dev *ca = bch2_dev_rcu_noerror(c, bp_pos.inode); if (ca) *bucket = bp_pos_to_bucket(ca, bp_pos); - rcu_read_unlock(); return ca != NULL; } @@ -102,7 +101,7 @@ static inline int bch2_bucket_backpointer_mod(struct btree_trans *trans, struct bkey_i_backpointer *bp, bool insert) { - if (unlikely(bch2_backpointers_no_use_write_buffer)) + if (static_branch_unlikely(&bch2_backpointers_no_use_write_buffer)) return bch2_bucket_backpointer_mod_nowritebuffer(trans, orig_k, bp, insert); if (!insert) { @@ -123,7 +122,12 @@ static inline enum bch_data_type bch2_bkey_ptr_data_type(struct bkey_s_c k, return BCH_DATA_btree; case KEY_TYPE_extent: case KEY_TYPE_reflink_v: - return p.has_ec ? BCH_DATA_stripe : BCH_DATA_user; + if (p.has_ec) + return BCH_DATA_stripe; + if (p.ptr.cached) + return BCH_DATA_cached; + else + return BCH_DATA_user; case KEY_TYPE_stripe: { const struct bch_extent_ptr *ptr = &entry->ptr; struct bkey_s_c_stripe s = bkey_s_c_to_stripe(k); @@ -147,7 +151,20 @@ static inline void bch2_extent_ptr_to_bp(struct bch_fs *c, struct bkey_i_backpointer *bp) { bkey_backpointer_init(&bp->k_i); - bp->k.p = POS(p.ptr.dev, ((u64) p.ptr.offset << MAX_EXTENT_COMPRESS_RATIO_SHIFT) + p.crc.offset); + bp->k.p.inode = p.ptr.dev; + + if (k.k->type != KEY_TYPE_stripe) + bp->k.p.offset = ((u64) p.ptr.offset << MAX_EXTENT_COMPRESS_RATIO_SHIFT) + p.crc.offset; + else { + /* + * Put stripe backpointers where they won't collide with the + * extent backpointers within the stripe: + */ + struct bkey_s_c_stripe s = bkey_s_c_to_stripe(k); + bp->k.p.offset = ((u64) (p.ptr.offset + le16_to_cpu(s.v->sectors)) << + MAX_EXTENT_COMPRESS_RATIO_SHIFT) - 1; + } + bp->v = (struct bch_backpointer) { .btree_id = btree_id, .level = level, @@ -164,8 +181,20 @@ struct bkey_s_c bch2_backpointer_get_key(struct btree_trans *, struct bkey_s_c_b struct btree *bch2_backpointer_get_node(struct btree_trans *, struct bkey_s_c_backpointer, struct btree_iter *, struct bkey_buf *); +int bch2_check_bucket_backpointer_mismatch(struct btree_trans *, struct bch_dev *, u64, + bool, struct bkey_buf *); + int bch2_check_btree_backpointers(struct bch_fs *); int bch2_check_extents_to_backpointers(struct bch_fs *); int bch2_check_backpointers_to_extents(struct bch_fs *); +static inline bool bch2_bucket_bitmap_test(struct bucket_bitmap *b, u64 i) +{ + unsigned long *bitmap = READ_ONCE(b->buckets); + return bitmap && test_bit(i, bitmap); +} + +int bch2_bucket_bitmap_resize(struct bch_dev *, struct bucket_bitmap *, u64, u64); +void bch2_bucket_bitmap_free(struct bucket_bitmap *); + #endif /* _BCACHEFS_BACKPOINTERS_BACKGROUND_H */ |