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authorKent Overstreet <kmo@daterainc.com>2013-11-12 01:35:24 (GMT)
committerKent Overstreet <kmo@daterainc.com>2014-01-08 21:05:13 (GMT)
commitc052dd9a26f60bcf70c0c3fcc08e07abb60295cd (patch)
tree9b6f0f270c546ef974bd0b091679a81e1ea295fc /drivers/md/bcache
parentf67342dd342d5917d94a7c0ffbde5f78e0d7a57a (diff)
downloadlinux-c052dd9a26f60bcf70c0c3fcc08e07abb60295cd.tar.xz
bcache: Convert btree_iter to struct btree_keys
More work to disentangle bset.c from struct btree Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Diffstat (limited to 'drivers/md/bcache')
-rw-r--r--drivers/md/bcache/bset.c22
-rw-r--r--drivers/md/bcache/bset.h19
-rw-r--r--drivers/md/bcache/btree.c22
-rw-r--r--drivers/md/bcache/btree.h8
-rw-r--r--drivers/md/bcache/debug.c6
-rw-r--r--drivers/md/bcache/sysfs.c2
6 files changed, 41 insertions, 38 deletions
diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index a3ffc37..097bd8d 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -764,7 +764,7 @@ static struct bset_search_iter bset_search_tree(struct bset_tree *t,
return (struct bset_search_iter) {l, r};
}
-struct bkey *__bch_bset_search(struct btree *b, struct bset_tree *t,
+struct bkey *__bch_bset_search(struct btree_keys *b, struct bset_tree *t,
const struct bkey *search)
{
struct bset_search_iter i;
@@ -787,7 +787,7 @@ struct bkey *__bch_bset_search(struct btree *b, struct bset_tree *t,
if (unlikely(!t->size)) {
i.l = t->data->start;
i.r = bset_bkey_last(t->data);
- } else if (bset_written(&b->keys, t)) {
+ } else if (bset_written(b, t)) {
/*
* Each node in the auxiliary search tree covers a certain range
* of bits, and keys above and below the set it covers might
@@ -803,14 +803,14 @@ struct bkey *__bch_bset_search(struct btree *b, struct bset_tree *t,
i = bset_search_tree(t, search);
} else {
- BUG_ON(!b->keys.nsets &&
+ BUG_ON(!b->nsets &&
t->size < bkey_to_cacheline(t, bset_bkey_last(t->data)));
i = bset_search_write_set(t, search);
}
- if (expensive_debug_checks(b->c)) {
- BUG_ON(bset_written(&b->keys, t) &&
+ if (btree_keys_expensive_checks(b)) {
+ BUG_ON(bset_written(b, t) &&
i.l != t->data->start &&
bkey_cmp(tree_to_prev_bkey(t,
inorder_to_tree(bkey_to_cacheline(t, i.l), t)),
@@ -853,7 +853,7 @@ void bch_btree_iter_push(struct btree_iter *iter, struct bkey *k,
btree_iter_cmp));
}
-static struct bkey *__bch_btree_iter_init(struct btree *b,
+static struct bkey *__bch_btree_iter_init(struct btree_keys *b,
struct btree_iter *iter,
struct bkey *search,
struct bset_tree *start)
@@ -866,7 +866,7 @@ static struct bkey *__bch_btree_iter_init(struct btree *b,
iter->b = b;
#endif
- for (; start <= bset_tree_last(&b->keys); start++) {
+ for (; start <= bset_tree_last(b); start++) {
ret = bch_bset_search(b, start, search);
bch_btree_iter_push(iter, ret, bset_bkey_last(start->data));
}
@@ -874,11 +874,11 @@ static struct bkey *__bch_btree_iter_init(struct btree *b,
return ret;
}
-struct bkey *bch_btree_iter_init(struct btree *b,
+struct bkey *bch_btree_iter_init(struct btree_keys *b,
struct btree_iter *iter,
struct bkey *search)
{
- return __bch_btree_iter_init(b, iter, search, b->keys.set);
+ return __bch_btree_iter_init(b, iter, search, b->set);
}
EXPORT_SYMBOL(bch_btree_iter_init);
@@ -1047,7 +1047,7 @@ void bch_btree_sort_partial(struct btree *b, unsigned start,
struct btree_iter iter;
int oldsize = bch_count_data(b);
- __bch_btree_iter_init(b, &iter, NULL, &b->keys.set[start]);
+ __bch_btree_iter_init(&b->keys, &iter, NULL, &b->keys.set[start]);
if (start) {
unsigned i;
@@ -1080,7 +1080,7 @@ void bch_btree_sort_into(struct btree *b, struct btree *new,
uint64_t start_time = local_clock();
struct btree_iter iter;
- bch_btree_iter_init(b, &iter, NULL);
+ bch_btree_iter_init(&b->keys, &iter, NULL);
btree_mergesort(&b->keys, new->keys.set->data, &iter, false, true);
diff --git a/drivers/md/bcache/bset.h b/drivers/md/bcache/bset.h
index 4913569..563130c 100644
--- a/drivers/md/bcache/bset.h
+++ b/drivers/md/bcache/bset.h
@@ -309,7 +309,7 @@ static inline bool bch_bkey_try_merge(struct btree_keys *b,
struct btree_iter {
size_t size, used;
#ifdef CONFIG_BCACHE_DEBUG
- struct btree *b;
+ struct btree_keys *b;
#endif
struct btree_iter_set {
struct bkey *k, *end;
@@ -323,21 +323,30 @@ struct bkey *bch_btree_iter_next_filter(struct btree_iter *,
struct btree_keys *, ptr_filter_fn);
void bch_btree_iter_push(struct btree_iter *, struct bkey *, struct bkey *);
-struct bkey *bch_btree_iter_init(struct btree *, struct btree_iter *,
+struct bkey *bch_btree_iter_init(struct btree_keys *, struct btree_iter *,
struct bkey *);
-struct bkey *__bch_bset_search(struct btree *, struct bset_tree *,
- const struct bkey *);
+struct bkey *__bch_bset_search(struct btree_keys *, struct bset_tree *,
+ const struct bkey *);
/*
* Returns the first key that is strictly greater than search
*/
-static inline struct bkey *bch_bset_search(struct btree *b, struct bset_tree *t,
+static inline struct bkey *bch_bset_search(struct btree_keys *b,
+ struct bset_tree *t,
const struct bkey *search)
{
return search ? __bch_bset_search(b, t, search) : t->data->start;
}
+#define for_each_key_filter(b, k, iter, filter) \
+ for (bch_btree_iter_init((b), (iter), NULL); \
+ ((k) = bch_btree_iter_next_filter((iter), (b), filter));)
+
+#define for_each_key(b, k, iter) \
+ for (bch_btree_iter_init((b), (iter), NULL); \
+ ((k) = bch_btree_iter_next(iter));)
+
/* Sorting */
struct bset_sort_state {
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 2c90003..9424c8a 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -212,7 +212,7 @@ void bch_btree_node_read_done(struct btree *b)
iter->used = 0;
#ifdef CONFIG_BCACHE_DEBUG
- iter->b = b;
+ iter->b = &b->keys;
#endif
if (!i->seq)
@@ -1195,7 +1195,7 @@ static bool btree_gc_mark_node(struct btree *b, struct gc_stat *gc)
gc->nodes++;
- for_each_key_filter(b, k, &iter, bch_ptr_invalid) {
+ for_each_key_filter(&b->keys, k, &iter, bch_ptr_invalid) {
stale = max(stale, btree_mark_key(b, k));
keys++;
@@ -1386,7 +1386,7 @@ static unsigned btree_gc_count_keys(struct btree *b)
struct btree_iter iter;
unsigned ret = 0;
- for_each_key_filter(b, k, &iter, bch_ptr_bad)
+ for_each_key_filter(&b->keys, k, &iter, bch_ptr_bad)
ret += bkey_u64s(k);
return ret;
@@ -1406,7 +1406,7 @@ static int btree_gc_recurse(struct btree *b, struct btree_op *op,
struct gc_merge_info *last = r + GC_MERGE_NODES - 1;
bch_keylist_init(&keys);
- bch_btree_iter_init(b, &iter, &b->c->gc_done);
+ bch_btree_iter_init(&b->keys, &iter, &b->c->gc_done);
for (i = 0; i < GC_MERGE_NODES; i++)
r[i].b = ERR_PTR(-EINTR);
@@ -1722,7 +1722,7 @@ static int bch_btree_check_recurse(struct btree *b, struct btree_op *op,
struct bucket *g;
struct btree_iter iter;
- for_each_key_filter(b, k, &iter, bch_ptr_invalid) {
+ for_each_key_filter(&b->keys, k, &iter, bch_ptr_invalid) {
for (i = 0; i < KEY_PTRS(k); i++) {
if (!ptr_available(b->c, k, i))
continue;
@@ -1745,7 +1745,7 @@ static int bch_btree_check_recurse(struct btree *b, struct btree_op *op,
}
if (b->level) {
- bch_btree_iter_init(b, &iter, NULL);
+ bch_btree_iter_init(&b->keys, &iter, NULL);
do {
k = bch_btree_iter_next_filter(&iter, &b->keys,
@@ -1892,7 +1892,7 @@ static bool fix_overlapping_extents(struct btree *b, struct bkey *insert,
* depends on us inserting a new key for the top
* here.
*/
- top = bch_bset_search(b,
+ top = bch_bset_search(&b->keys,
bset_tree_last(&b->keys),
insert);
bch_bset_insert(&b->keys, top, k);
@@ -1965,7 +1965,7 @@ static bool btree_insert_key(struct btree *b, struct btree_op *op,
* the previous key.
*/
prev = NULL;
- m = bch_btree_iter_init(b, &iter,
+ m = bch_btree_iter_init(&b->keys, &iter,
PRECEDING_KEY(&START_KEY(k)));
if (fix_overlapping_extents(b, k, &iter, replace_key)) {
@@ -2001,7 +2001,7 @@ static bool btree_insert_key(struct btree *b, struct btree_op *op,
goto copy;
} else {
BUG_ON(replace_key);
- m = bch_bset_search(b, bset_tree_last(&b->keys), k);
+ m = bch_bset_search(&b->keys, bset_tree_last(&b->keys), k);
}
insert: bch_bset_insert(&b->keys, m, k);
@@ -2357,7 +2357,7 @@ static int bch_btree_map_nodes_recurse(struct btree *b, struct btree_op *op,
struct bkey *k;
struct btree_iter iter;
- bch_btree_iter_init(b, &iter, from);
+ bch_btree_iter_init(&b->keys, &iter, from);
while ((k = bch_btree_iter_next_filter(&iter, &b->keys,
bch_ptr_bad))) {
@@ -2390,7 +2390,7 @@ static int bch_btree_map_keys_recurse(struct btree *b, struct btree_op *op,
struct bkey *k;
struct btree_iter iter;
- bch_btree_iter_init(b, &iter, from);
+ bch_btree_iter_init(&b->keys, &iter, from);
while ((k = bch_btree_iter_next_filter(&iter, &b->keys, bch_ptr_bad))) {
ret = !b->level
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 04e81f8..af065e9 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -201,14 +201,6 @@ void bkey_put(struct cache_set *c, struct bkey *k);
iter++) \
hlist_for_each_entry_rcu((b), (c)->bucket_hash + iter, hash)
-#define for_each_key_filter(b, k, iter, filter) \
- for (bch_btree_iter_init((b), (iter), NULL); \
- ((k) = bch_btree_iter_next_filter((iter), &(b)->keys, filter));)
-
-#define for_each_key(b, k, iter) \
- for (bch_btree_iter_init((b), (iter), NULL); \
- ((k) = bch_btree_iter_next(iter));)
-
/* Recursing down the btree */
struct btree_op {
diff --git a/drivers/md/bcache/debug.c b/drivers/md/bcache/debug.c
index 8acc18a..3de27e2 100644
--- a/drivers/md/bcache/debug.c
+++ b/drivers/md/bcache/debug.c
@@ -246,7 +246,7 @@ int __bch_count_data(struct btree *b)
struct bkey *k;
if (!b->level)
- for_each_key(b, k, &iter)
+ for_each_key(&b->keys, k, &iter)
ret += KEY_SIZE(k);
return ret;
}
@@ -258,7 +258,7 @@ void __bch_check_keys(struct btree *b, const char *fmt, ...)
struct btree_iter iter;
const char *err;
- for_each_key(b, k, &iter) {
+ for_each_key(&b->keys, k, &iter) {
if (!b->level) {
err = "Keys out of order";
if (p && bkey_cmp(&START_KEY(p), &START_KEY(k)) > 0)
@@ -298,6 +298,7 @@ bug:
void bch_btree_iter_next_check(struct btree_iter *iter)
{
+#if 0
struct bkey *k = iter->data->k, *next = bkey_next(k);
if (next < iter->data->end &&
@@ -305,6 +306,7 @@ void bch_btree_iter_next_check(struct btree_iter *iter)
bch_dump_bucket(iter->b);
panic("Key skipped backwards\n");
}
+#endif
}
#endif
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index db2111b..c6ab693 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -460,7 +460,7 @@ lock_root:
rw_lock(false, b, b->level);
} while (b != c->root);
- for_each_key_filter(b, k, &iter, bch_ptr_bad)
+ for_each_key_filter(&b->keys, k, &iter, bch_ptr_bad)
bytes += bkey_bytes(k);
rw_unlock(false, b);