diff options
Diffstat (limited to 'drivers/md/bcache/debug.c')
-rw-r--r-- | drivers/md/bcache/debug.c | 179 |
1 files changed, 5 insertions, 174 deletions
diff --git a/drivers/md/bcache/debug.c b/drivers/md/bcache/debug.c index 3de27e2a4e07..8b1f1d5c1819 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 @@ void bch_btree_verify(struct btree *b) 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 @@ 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->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 @@ static ssize_t bch_dump_read(struct file *file, char __user *buf, 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); } |