#include "bcache.h"
#include "btree.h"
#include "debug.h"
+#include "extents.h"
#include <linux/console.h>
#include <linux/debugfs.h>
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_OFFSET(k), KEY_SIZE(k));
-
- if (KEY_PTRS(k))
- while (1) {
- p("%llu:%llu gen %llu",
- PTR_DEV(k, i), PTR_OFFSET(k, i), PTR_GEN(k, i));
-
- if (++i == KEY_PTRS(k))
- break;
-
- p(", ");
- }
-
- 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)
-{
- struct bkey *k, *next;
- unsigned j;
- char buf[80];
-
- for (k = i->start; k < end(i); k = next) {
- next = bkey_next(k);
-
- bch_bkey_to_text(buf, sizeof(buf), k);
- printk(KERN_ERR "block %zu key %zi/%u: %s", index(i, b),
- (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);
- }
+#define for_each_written_bset(b, start, i) \
+ for (i = (start); \
+ (void *) i < (void *) (start) + (KEY_SIZE(&b->key) << 9) &&\
+ i->seq == (start)->seq; \
+ i = (void *) i + set_blocks(i, block_bytes(b->c)) * \
+ block_bytes(b->c))
- printk(" %s\n", bch_ptr_status(b->c, k));
-
- if (next < end(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->nsets; i++)
- dump_bset(b, b->sets[i].data);
- console_unlock();
-}
-
-void bch_btree_verify(struct btree *b, struct bset *new)
+void bch_btree_verify(struct btree *b)
{
struct btree *v = b->c->verify_data;
- struct closure cl;
- closure_init_stack(&cl);
+ struct bset *ondisk, *sorted, *inmemory;
+ struct bio *bio;
- if (!b->c->verify)
+ if (!b->c->verify || !b->c->verify_ondisk)
return;
- closure_wait_event(&b->io.wait, &cl,
- atomic_read(&b->io.cl.remaining) == -1);
-
+ down(&b->io_mutex);
mutex_lock(&b->c->verify_lock);
+ ondisk = b->c->verify_ondisk;
+ sorted = b->c->verify_data->keys.set->data;
+ inmemory = b->keys.set->data;
+
bkey_copy(&v->key, &b->key);
v->written = 0;
v->level = b->level;
+ v->keys.ops = b->keys.ops;
+
+ bio = bch_bbio_alloc(b->c);
+ bio->bi_bdev = PTR_CACHE(b->c, &b->key, 0)->bdev;
+ bio->bi_iter.bi_sector = PTR_OFFSET(&b->key, 0);
+ bio->bi_iter.bi_size = KEY_SIZE(&v->key) << 9;
+ bch_bio_map(bio, sorted);
- bch_btree_node_read(v);
- closure_wait_event(&v->io.wait, &cl,
- atomic_read(&b->io.cl.remaining) == -1);
+ submit_bio_wait(REQ_META|READ_SYNC, bio);
+ bch_bbio_free(bio, b->c);
- if (new->keys != v->sets[0].data->keys ||
- memcmp(new->start,
- v->sets[0].data->start,
- (void *) end(new) - (void *) new->start)) {
- unsigned i, j;
+ memcpy(ondisk, sorted, KEY_SIZE(&v->key) << 9);
+
+ bch_btree_node_read_done(v);
+ sorted = v->keys.set->data;
+
+ if (inmemory->keys != sorted->keys ||
+ memcmp(inmemory->start,
+ sorted->start,
+ (void *) bset_bkey_last(inmemory) - (void *) inmemory->start)) {
+ struct bset *i;
+ unsigned j;
console_lock();
- printk(KERN_ERR "*** original memory node:\n");
- for (i = 0; i <= b->nsets; i++)
- dump_bset(b, b->sets[i].data);
+ printk(KERN_ERR "*** in memory:\n");
+ bch_dump_bset(&b->keys, inmemory, 0);
- printk(KERN_ERR "*** sorted memory node:\n");
- dump_bset(b, new);
+ printk(KERN_ERR "*** read back in:\n");
+ bch_dump_bset(&v->keys, sorted, 0);
- printk(KERN_ERR "*** on disk node:\n");
- dump_bset(v, v->sets[0].data);
+ 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);
+ bch_dump_bset(&b->keys, i, block);
+ }
- for (j = 0; j < new->keys; j++)
- if (new->d[j] != v->sets[0].data->d[j])
+ printk(KERN_ERR "*** block %zu not written\n",
+ ((void *) i - (void *) ondisk) / block_bytes(b->c));
+
+ for (j = 0; j < inmemory->keys; j++)
+ if (inmemory->d[j] != sorted->d[j])
break;
+ printk(KERN_ERR "b->written %u\n", b->written);
+
console_unlock();
panic("verify failed at %u\n", j);
}
mutex_unlock(&b->c->verify_lock);
+ up(&b->io_mutex);
}
void bch_data_verify(struct cached_dev *dc, struct bio *bio)
{
char name[BDEVNAME_SIZE];
struct bio *check;
- struct bio_vec *bv;
+ struct bio_vec bv, *bv2;
+ struct bvec_iter iter;
int i;
check = bio_clone(bio, GFP_NOIO);
submit_bio_wait(READ_SYNC, check);
- bio_for_each_segment(bv, bio, i) {
- void *p1 = kmap_atomic(bv->bv_page);
- void *p2 = page_address(check->bi_io_vec[i].bv_page);
+ bio_for_each_segment(bv, bio, iter) {
+ void *p1 = kmap_atomic(bv.bv_page);
+ void *p2 = page_address(check->bi_io_vec[iter.bi_idx].bv_page);
- cache_set_err_on(memcmp(p1 + bv->bv_offset,
- p2 + bv->bv_offset,
- bv->bv_len),
+ cache_set_err_on(memcmp(p1 + bv.bv_offset,
+ p2 + bv.bv_offset,
+ bv.bv_len),
dc->disk.c,
"verify failed at dev %s sector %llu",
bdevname(dc->bdev, name),
- (uint64_t) bio->bi_sector);
+ (uint64_t) bio->bi_iter.bi_sector);
kunmap_atomic(p1);
}
- bio_for_each_segment_all(bv, check, i)
- __free_page(bv->bv_page);
+ bio_for_each_segment_all(bv2, check, i)
+ __free_page(bv2->bv_page);
out_put:
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, 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, 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, k))
- continue;
-
- err = "Overlapping keys";
- if (p && bkey_cmp(p, &START_KEY(k)) > 0)
- goto bug;
- } else {
- if (bch_ptr_bad(b, 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)
-{
- 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
#ifdef CONFIG_DEBUG_FS
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);
}
projects / platform / adaptation / renesas_rcar / renesas_kernel.git / blobdiff