#ifndef _BCACHEFS_BACKPOINTERS_BACKGROUND_H
#define _BCACHEFS_BACKPOINTERS_BACKGROUND_H
+#include "btree_cache.h"
#include "btree_iter.h"
#include "btree_update.h"
#include "buckets.h"
#include "super.h"
-int bch2_backpointer_invalid(const struct bch_fs *, struct bkey_s_c k,
- unsigned, struct printbuf *);
+static inline u64 swab40(u64 x)
+{
+ return (((x & 0x00000000ffULL) << 32)|
+ ((x & 0x000000ff00ULL) << 16)|
+ ((x & 0x0000ff0000ULL) >> 0)|
+ ((x & 0x00ff000000ULL) >> 16)|
+ ((x & 0xff00000000ULL) >> 32));
+}
+
+int bch2_backpointer_invalid(struct bch_fs *, struct bkey_s_c k,
+ enum bkey_invalid_flags, struct printbuf *);
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);
void bch2_backpointer_swab(struct bkey_s);
.key_invalid = bch2_backpointer_invalid, \
.val_to_text = bch2_backpointer_k_to_text, \
.swab = bch2_backpointer_swab, \
+ .min_val_size = 32, \
})
#define MAX_EXTENT_COMPRESS_RATIO_SHIFT 10
(bucket_to_sector(ca, bucket.offset) <<
MAX_EXTENT_COMPRESS_RATIO_SHIFT) + bucket_offset);
- BUG_ON(!bkey_eq(bucket, bp_pos_to_bucket(c, ret)));
+ EBUG_ON(!bkey_eq(bucket, bp_pos_to_bucket(c, ret)));
return ret;
}
-bool bch2_bucket_backpointer_del(struct btree_trans *,
- struct bkey_i_alloc_v4 *,
- struct bch_backpointer);
-
-int bch2_bucket_backpointer_mod_nowritebuffer(struct btree_trans *,
- struct bkey_i_alloc_v4 *,
+int bch2_bucket_backpointer_mod_nowritebuffer(struct btree_trans *, struct bpos bucket,
struct bch_backpointer, struct bkey_s_c, bool);
static inline int bch2_bucket_backpointer_mod(struct btree_trans *trans,
- struct bkey_i_alloc_v4 *a,
+ struct bpos bucket,
struct bch_backpointer bp,
struct bkey_s_c orig_k,
bool insert)
{
- struct bch_fs *c = trans->c;
- struct bkey_i_backpointer *bp_k;
- int ret;
-
- if (!insert &&
- unlikely(BCH_ALLOC_V4_NR_BACKPOINTERS(&a->v)) &&
- bch2_bucket_backpointer_del(trans, a, bp))
- return 0;
-
if (unlikely(bch2_backpointers_no_use_write_buffer))
- return bch2_bucket_backpointer_mod_nowritebuffer(trans, a, bp, orig_k, insert);
+ return bch2_bucket_backpointer_mod_nowritebuffer(trans, bucket, bp, orig_k, insert);
- bp_k = bch2_trans_kmalloc_nomemzero(trans, sizeof(struct bkey_i_backpointer));
- ret = PTR_ERR_OR_ZERO(bp_k);
- if (ret)
- return ret;
+ struct bkey_i_backpointer bp_k;
- bkey_backpointer_init(&bp_k->k_i);
- bp_k->k.p = bucket_pos_to_bp(c, a->k.p, bp.bucket_offset);
- bp_k->v = bp;
+ bkey_backpointer_init(&bp_k.k_i);
+ bp_k.k.p = bucket_pos_to_bp(trans->c, bucket, bp.bucket_offset);
+ bp_k.v = bp;
if (!insert) {
- bp_k->k.type = KEY_TYPE_deleted;
- set_bkey_val_u64s(&bp_k->k, 0);
+ bp_k.k.type = KEY_TYPE_deleted;
+ set_bkey_val_u64s(&bp_k.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.k_i);
}
static inline enum bch_data_type bkey_ptr_data_type(enum btree_id btree_id, unsigned level,
}
int bch2_get_next_backpointer(struct btree_trans *, struct bpos, int,
- u64 *, struct bch_backpointer *, unsigned);
+ struct bpos *, struct bch_backpointer *, unsigned);
struct bkey_s_c bch2_backpointer_get_key(struct btree_trans *, struct btree_iter *,
- struct bpos, u64, struct bch_backpointer);
+ struct bpos, struct bch_backpointer,
+ unsigned);
struct btree *bch2_backpointer_get_node(struct btree_trans *, struct btree_iter *,
- struct bpos, u64, struct bch_backpointer);
+ struct bpos, struct bch_backpointer);
int bch2_check_btree_backpointers(struct bch_fs *);
int bch2_check_extents_to_backpointers(struct bch_fs *);