diff options
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/bcache/bset.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c index f990403c4f1c..4f6b5940e609 100644 --- a/drivers/md/bcache/bset.c +++ b/drivers/md/bcache/bset.c @@ -511,9 +511,11 @@ static unsigned bkey_to_cacheline(struct bset_tree *t, struct bkey *k) return ((void *) k - (void *) t->data) / BSET_CACHELINE; } -static unsigned bkey_to_cacheline_offset(struct bkey *k) +static unsigned bkey_to_cacheline_offset(struct bset_tree *t, + unsigned cacheline, + struct bkey *k) { - return ((size_t) k & (BSET_CACHELINE - 1)) / sizeof(uint64_t); + return (u64 *) k - (u64 *) cacheline_to_bkey(t, cacheline, 0); } static struct bkey *tree_to_bkey(struct bset_tree *t, unsigned j) @@ -608,7 +610,7 @@ static void bch_bset_build_unwritten_tree(struct btree_keys *b) bset_alloc_tree(b, t); if (t->tree != b->set->tree + btree_keys_cachelines(b)) { - t->prev[0] = bkey_to_cacheline_offset(t->data->start); + t->prev[0] = bkey_to_cacheline_offset(t, 0, t->data->start); t->size = 1; } } @@ -632,7 +634,7 @@ EXPORT_SYMBOL(bch_bset_init_next); void bch_bset_build_written_tree(struct btree_keys *b) { struct bset_tree *t = bset_tree_last(b); - struct bkey *k = t->data->start; + struct bkey *prev = NULL, *k = t->data->start; unsigned j, cacheline = 1; b->last_set_unwritten = 0; @@ -654,13 +656,11 @@ void bch_bset_build_written_tree(struct btree_keys *b) for (j = inorder_next(0, t->size); j; j = inorder_next(j, t->size)) { - while (bkey_to_cacheline(t, k) != cacheline) - k = bkey_next(k); + while (bkey_to_cacheline(t, k) < cacheline) + prev = k, k = bkey_next(k); - t->prev[j] = bkey_u64s(k); - k = bkey_next(k); - cacheline++; - t->tree[j].m = bkey_to_cacheline_offset(k); + t->prev[j] = bkey_u64s(prev); + t->tree[j].m = bkey_to_cacheline_offset(t, cacheline++, k); } while (bkey_next(k) != bset_bkey_last(t->data)) @@ -739,8 +739,8 @@ static void bch_bset_fix_lookup_table(struct btree_keys *b, * lookup table for the first key that is strictly greater than k: * it's either k's cacheline or the next one */ - if (j < t->size && - table_to_bkey(t, j) <= k) + while (j < t->size && + table_to_bkey(t, j) <= k) j++; /* Adjust all the lookup table entries, and find a new key for any that @@ -755,7 +755,7 @@ static void bch_bset_fix_lookup_table(struct btree_keys *b, while (k < cacheline_to_bkey(t, j, 0)) k = bkey_next(k); - t->prev[j] = bkey_to_cacheline_offset(k); + t->prev[j] = bkey_to_cacheline_offset(t, j, k); } } @@ -768,7 +768,7 @@ static void bch_bset_fix_lookup_table(struct btree_keys *b, k != bset_bkey_last(t->data); k = bkey_next(k)) if (t->size == bkey_to_cacheline(t, k)) { - t->prev[t->size] = bkey_to_cacheline_offset(k); + t->prev[t->size] = bkey_to_cacheline_offset(t, t->size, k); t->size++; } } |