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Diffstat (limited to 'fs/bcachefs/backpointers.h')
-rw-r--r--fs/bcachefs/backpointers.h97
1 files changed, 44 insertions, 53 deletions
diff --git a/fs/bcachefs/backpointers.h b/fs/bcachefs/backpointers.h
index 3b29fdf519dd..060dad1521ee 100644
--- a/fs/bcachefs/backpointers.h
+++ b/fs/bcachefs/backpointers.h
@@ -18,14 +18,14 @@ static inline u64 swab40(u64 x)
((x & 0xff00000000ULL) >> 32));
}
-int bch2_backpointer_validate(struct bch_fs *, struct bkey_s_c k, enum bch_validate_flags);
-void bch2_backpointer_to_text(struct printbuf *, const struct bch_backpointer *);
-void bch2_backpointer_k_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
+int bch2_backpointer_validate(struct bch_fs *, struct bkey_s_c k,
+ struct bkey_validate_context);
+void bch2_backpointer_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
void bch2_backpointer_swab(struct bkey_s);
#define bch2_bkey_ops_backpointer ((struct bkey_ops) { \
.key_validate = bch2_backpointer_validate, \
- .val_to_text = bch2_backpointer_k_to_text, \
+ .val_to_text = bch2_backpointer_to_text, \
.swab = bch2_backpointer_swab, \
.min_val_size = 32, \
})
@@ -43,22 +43,24 @@ static inline struct bpos bp_pos_to_bucket(const struct bch_dev *ca, struct bpos
return POS(bp_pos.inode, sector_to_bucket(ca, bucket_sector));
}
+static inline struct bpos bp_pos_to_bucket_and_offset(const struct bch_dev *ca, struct bpos bp_pos,
+ u32 *bucket_offset)
+{
+ u64 bucket_sector = bp_pos.offset >> MAX_EXTENT_COMPRESS_RATIO_SHIFT;
+
+ return POS(bp_pos.inode, sector_to_bucket_and_offset(ca, bucket_sector, bucket_offset));
+}
+
static inline bool bp_pos_to_bucket_nodev_noerror(struct bch_fs *c, struct bpos bp_pos, struct bpos *bucket)
{
rcu_read_lock();
- struct bch_dev *ca = bch2_dev_rcu(c, bp_pos.inode);
+ 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;
}
-static inline bool bp_pos_to_bucket_nodev(struct bch_fs *c, struct bpos bp_pos, struct bpos *bucket)
-{
- return !bch2_fs_inconsistent_on(!bp_pos_to_bucket_nodev_noerror(c, bp_pos, bucket),
- c, "backpointer for missing device %llu", bp_pos.inode);
-}
-
static inline struct bpos bucket_pos_to_bp_noerror(const struct bch_dev *ca,
struct bpos bucket,
u64 bucket_offset)
@@ -80,31 +82,35 @@ static inline struct bpos bucket_pos_to_bp(const struct bch_dev *ca,
return ret;
}
-int bch2_bucket_backpointer_mod_nowritebuffer(struct btree_trans *, struct bch_dev *,
- struct bpos bucket, struct bch_backpointer, struct bkey_s_c, bool);
+static inline struct bpos bucket_pos_to_bp_start(const struct bch_dev *ca, struct bpos bucket)
+{
+ return bucket_pos_to_bp(ca, bucket, 0);
+}
+
+static inline struct bpos bucket_pos_to_bp_end(const struct bch_dev *ca, struct bpos bucket)
+{
+ return bpos_nosnap_predecessor(bucket_pos_to_bp(ca, bpos_nosnap_successor(bucket), 0));
+}
+
+int bch2_bucket_backpointer_mod_nowritebuffer(struct btree_trans *,
+ struct bkey_s_c,
+ struct bkey_i_backpointer *,
+ bool);
static inline int bch2_bucket_backpointer_mod(struct btree_trans *trans,
- struct bch_dev *ca,
- struct bpos bucket,
- struct bch_backpointer bp,
struct bkey_s_c orig_k,
+ struct bkey_i_backpointer *bp,
bool insert)
{
if (unlikely(bch2_backpointers_no_use_write_buffer))
- return bch2_bucket_backpointer_mod_nowritebuffer(trans, ca, bucket, bp, orig_k, insert);
-
- struct bkey_i_backpointer bp_k;
-
- bkey_backpointer_init(&bp_k.k_i);
- bp_k.k.p = bucket_pos_to_bp(ca, bucket, bp.bucket_offset);
- bp_k.v = bp;
+ return bch2_bucket_backpointer_mod_nowritebuffer(trans, orig_k, bp, insert);
if (!insert) {
- bp_k.k.type = KEY_TYPE_deleted;
- set_bkey_val_u64s(&bp_k.k, 0);
+ bp->k.type = KEY_TYPE_deleted;
+ set_bkey_val_u64s(&bp->k, 0);
}
- return bch2_trans_update_buffered(trans, BTREE_ID_backpointers, &bp_k.k_i);
+ return bch2_trans_update_buffered(trans, BTREE_ID_backpointers, &bp->k_i);
}
static inline enum bch_data_type bch2_bkey_ptr_data_type(struct bkey_s_c k,
@@ -134,44 +140,29 @@ static inline enum bch_data_type bch2_bkey_ptr_data_type(struct bkey_s_c k,
}
}
-static inline void __bch2_extent_ptr_to_bp(struct bch_fs *c, struct bch_dev *ca,
+static inline void bch2_extent_ptr_to_bp(struct bch_fs *c,
enum btree_id btree_id, unsigned level,
struct bkey_s_c k, struct extent_ptr_decoded p,
const union bch_extent_entry *entry,
- struct bpos *bucket_pos, struct bch_backpointer *bp,
- u64 sectors)
+ struct bkey_i_backpointer *bp)
{
- u32 bucket_offset;
- *bucket_pos = PTR_BUCKET_POS_OFFSET(ca, &p.ptr, &bucket_offset);
- *bp = (struct bch_backpointer) {
+ 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->v = (struct bch_backpointer) {
.btree_id = btree_id,
.level = level,
.data_type = bch2_bkey_ptr_data_type(k, p, entry),
- .bucket_offset = ((u64) bucket_offset << MAX_EXTENT_COMPRESS_RATIO_SHIFT) +
- p.crc.offset,
- .bucket_len = sectors,
+ .bucket_gen = p.ptr.gen,
+ .bucket_len = ptr_disk_sectors(level ? btree_sectors(c) : k.k->size, p),
.pos = k.k->p,
};
}
-static inline void bch2_extent_ptr_to_bp(struct bch_fs *c, struct bch_dev *ca,
- enum btree_id btree_id, unsigned level,
- struct bkey_s_c k, struct extent_ptr_decoded p,
- const union bch_extent_entry *entry,
- struct bpos *bucket_pos, struct bch_backpointer *bp)
-{
- u64 sectors = ptr_disk_sectors(level ? btree_sectors(c) : k.k->size, p);
-
- __bch2_extent_ptr_to_bp(c, ca, btree_id, level, k, p, entry, bucket_pos, bp, sectors);
-}
-
-int bch2_get_next_backpointer(struct btree_trans *, struct bch_dev *ca, struct bpos, int,
- struct bpos *, struct bch_backpointer *, unsigned);
-struct bkey_s_c bch2_backpointer_get_key(struct btree_trans *, struct btree_iter *,
- struct bpos, struct bch_backpointer,
- unsigned);
-struct btree *bch2_backpointer_get_node(struct btree_trans *, struct btree_iter *,
- struct bpos, struct bch_backpointer);
+struct bkey_buf;
+struct bkey_s_c bch2_backpointer_get_key(struct btree_trans *, struct bkey_s_c_backpointer,
+ struct btree_iter *, unsigned, struct bkey_buf *);
+struct btree *bch2_backpointer_get_node(struct btree_trans *, struct bkey_s_c_backpointer,
+ struct btree_iter *, struct bkey_buf *);
int bch2_check_btree_backpointers(struct bch_fs *);
int bch2_check_extents_to_backpointers(struct bch_fs *);
generated by cgit v1.2.3 (git 2.39.0) at 2025-04-30 11:07:59 +0300