bcache: Convert debug code to btree_keys
More work to disentangle various code from struct btree
Signed-off-by: Kent Overstreet <kmo@daterainc.com>
diff --git a/drivers/md/bcache/debug.c b/drivers/md/bcache/debug.c
index 3de27e2..8b1f1d5 100644
--- a/drivers/md/bcache/debug.c
+++ b/drivers/md/bcache/debug.c
@@ -8,6 +8,7 @@
#include "bcache.h"
#include "btree.h"
#include "debug.h"
+#include "extents.h"
#include <linux/console.h>
#include <linux/debugfs.h>
@@ -17,108 +18,8 @@
static struct dentry *debug;
-const char *bch_ptr_status(struct cache_set *c, const struct bkey *k)
-{
- unsigned i;
-
- for (i = 0; i < KEY_PTRS(k); i++)
- if (ptr_available(c, k, i)) {
- struct cache *ca = PTR_CACHE(c, k, i);
- size_t bucket = PTR_BUCKET_NR(c, k, i);
- size_t r = bucket_remainder(c, PTR_OFFSET(k, i));
-
- if (KEY_SIZE(k) + r > c->sb.bucket_size)
- return "bad, length too big";
- if (bucket < ca->sb.first_bucket)
- return "bad, short offset";
- if (bucket >= ca->sb.nbuckets)
- return "bad, offset past end of device";
- if (ptr_stale(c, k, i))
- return "stale";
- }
-
- if (!bkey_cmp(k, &ZERO_KEY))
- return "bad, null key";
- if (!KEY_PTRS(k))
- return "bad, no pointers";
- if (!KEY_SIZE(k))
- return "zeroed key";
- return "";
-}
-
-int bch_bkey_to_text(char *buf, size_t size, const struct bkey *k)
-{
- unsigned i = 0;
- char *out = buf, *end = buf + size;
-
-#define p(...) (out += scnprintf(out, end - out, __VA_ARGS__))
-
- p("%llu:%llu len %llu -> [", KEY_INODE(k), KEY_START(k), KEY_SIZE(k));
-
- for (i = 0; i < KEY_PTRS(k); i++) {
- if (i)
- p(", ");
-
- if (PTR_DEV(k, i) == PTR_CHECK_DEV)
- p("check dev");
- else
- p("%llu:%llu gen %llu", PTR_DEV(k, i),
- PTR_OFFSET(k, i), PTR_GEN(k, i));
- }
-
- p("]");
-
- if (KEY_DIRTY(k))
- p(" dirty");
- if (KEY_CSUM(k))
- p(" cs%llu %llx", KEY_CSUM(k), k->ptr[1]);
-#undef p
- return out - buf;
-}
-
#ifdef CONFIG_BCACHE_DEBUG
-static void dump_bset(struct btree *b, struct bset *i, unsigned set)
-{
- struct bkey *k, *next;
- unsigned j;
- char buf[80];
-
- for (k = i->start; k < bset_bkey_last(i); k = next) {
- next = bkey_next(k);
-
- bch_bkey_to_text(buf, sizeof(buf), k);
- printk(KERN_ERR "b %u k %zi/%u: %s", set,
- (uint64_t *) k - i->d, i->keys, buf);
-
- for (j = 0; j < KEY_PTRS(k); j++) {
- size_t n = PTR_BUCKET_NR(b->c, k, j);
- printk(" bucket %zu", n);
-
- if (n >= b->c->sb.first_bucket && n < b->c->sb.nbuckets)
- printk(" prio %i",
- PTR_BUCKET(b->c, k, j)->prio);
- }
-
- printk(" %s\n", bch_ptr_status(b->c, k));
-
- if (next < bset_bkey_last(i) &&
- bkey_cmp(k, !b->level ? &START_KEY(next) : next) > 0)
- printk(KERN_ERR "Key skipped backwards\n");
- }
-}
-
-static void bch_dump_bucket(struct btree *b)
-{
- unsigned i;
-
- console_lock();
- for (i = 0; i <= b->keys.nsets; i++)
- dump_bset(b, b->keys.set[i].data,
- bset_block_offset(b, b->keys.set[i].data));
- console_unlock();
-}
-
#define for_each_written_bset(b, start, i) \
for (i = (start); \
(void *) i < (void *) (start) + (KEY_SIZE(&b->key) << 9) &&\
@@ -171,17 +72,17 @@
console_lock();
printk(KERN_ERR "*** in memory:\n");
- dump_bset(b, inmemory, 0);
+ bch_dump_bset(&b->keys, inmemory, 0);
printk(KERN_ERR "*** read back in:\n");
- dump_bset(v, sorted, 0);
+ bch_dump_bset(&v->keys, sorted, 0);
for_each_written_bset(b, ondisk, i) {
unsigned block = ((void *) i - (void *) ondisk) /
block_bytes(b->c);
printk(KERN_ERR "*** on disk block %u:\n", block);
- dump_bset(b, i, block);
+ bch_dump_bset(&b->keys, i, block);
}
printk(KERN_ERR "*** block %zu not written\n",
@@ -239,76 +140,6 @@
bio_put(check);
}
-int __bch_count_data(struct btree *b)
-{
- unsigned ret = 0;
- struct btree_iter iter;
- struct bkey *k;
-
- if (!b->level)
- for_each_key(&b->keys, k, &iter)
- ret += KEY_SIZE(k);
- return ret;
-}
-
-void __bch_check_keys(struct btree *b, const char *fmt, ...)
-{
- va_list args;
- struct bkey *k, *p = NULL;
- struct btree_iter iter;
- const char *err;
-
- 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)
- goto bug;
-
- if (bch_ptr_invalid(&b->keys, k))
- continue;
-
- err = "Overlapping keys";
- if (p && bkey_cmp(p, &START_KEY(k)) > 0)
- goto bug;
- } else {
- if (bch_ptr_bad(&b->keys, k))
- continue;
-
- err = "Duplicate keys";
- if (p && !bkey_cmp(p, k))
- goto bug;
- }
- p = k;
- }
-
- err = "Key larger than btree node key";
- if (p && bkey_cmp(p, &b->key) > 0)
- goto bug;
-
- return;
-bug:
- bch_dump_bucket(b);
-
- va_start(args, fmt);
- vprintk(fmt, args);
- va_end(args);
-
- panic("bcache error: %s:\n", err);
-}
-
-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 &&
- bkey_cmp(k, iter->b->level ? next : &START_KEY(next)) > 0) {
- bch_dump_bucket(iter->b);
- panic("Key skipped backwards\n");
- }
-#endif
-}
-
#endif
#ifdef CONFIG_DEBUG_FS
@@ -355,7 +186,7 @@
if (!w)
break;
- bch_bkey_to_text(kbuf, sizeof(kbuf), &w->key);
+ bch_extent_to_text(kbuf, sizeof(kbuf), &w->key);
i->bytes = snprintf(i->buf, PAGE_SIZE, "%s\n", kbuf);
bch_keybuf_del(&i->keys, w);
}