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// SPDX-License-Identifier: GPL-2.0
#include "bcachefs.h"
#include "bkey_methods.h"
#include "btree_types.h"
#include "alloc_background.h"
#include "dirent.h"
#include "error.h"
#include "extents.h"
#include "inode.h"
#include "quota.h"
#include "xattr.h"
const struct bkey_ops bch2_bkey_ops[] = {
[BKEY_TYPE_EXTENTS] = bch2_bkey_extent_ops,
[BKEY_TYPE_INODES] = bch2_bkey_inode_ops,
[BKEY_TYPE_DIRENTS] = bch2_bkey_dirent_ops,
[BKEY_TYPE_XATTRS] = bch2_bkey_xattr_ops,
[BKEY_TYPE_ALLOC] = bch2_bkey_alloc_ops,
[BKEY_TYPE_QUOTAS] = bch2_bkey_quota_ops,
[BKEY_TYPE_BTREE] = bch2_bkey_btree_ops,
};
const char *bch2_bkey_val_invalid(struct bch_fs *c, enum bkey_type type,
struct bkey_s_c k)
{
const struct bkey_ops *ops = &bch2_bkey_ops[type];
switch (k.k->type) {
case KEY_TYPE_DELETED:
case KEY_TYPE_DISCARD:
return NULL;
case KEY_TYPE_ERROR:
return bkey_val_bytes(k.k) != 0
? "value size should be zero"
: NULL;
case KEY_TYPE_COOKIE:
return bkey_val_bytes(k.k) != sizeof(struct bch_cookie)
? "incorrect value size"
: NULL;
default:
if (k.k->type < KEY_TYPE_GENERIC_NR)
return "invalid type";
return ops->key_invalid(c, k);
}
}
const char *__bch2_bkey_invalid(struct bch_fs *c, enum bkey_type type,
struct bkey_s_c k)
{
const struct bkey_ops *ops = &bch2_bkey_ops[type];
if (k.k->u64s < BKEY_U64s)
return "u64s too small";
if (!ops->is_extents) {
if (k.k->size)
return "nonzero size field";
} else {
if ((k.k->size == 0) != bkey_deleted(k.k))
return "bad size field";
}
if (ops->is_extents &&
!k.k->size &&
!bkey_deleted(k.k))
return "zero size field";
if (k.k->p.snapshot)
return "nonzero snapshot";
if (type != BKEY_TYPE_BTREE &&
!bkey_cmp(k.k->p, POS_MAX))
return "POS_MAX key";
return NULL;
}
const char *bch2_bkey_invalid(struct bch_fs *c, enum bkey_type type,
struct bkey_s_c k)
{
return __bch2_bkey_invalid(c, type, k) ?:
bch2_bkey_val_invalid(c, type, k);
}
const char *bch2_bkey_in_btree_node(struct btree *b, struct bkey_s_c k)
{
if (bkey_cmp(bkey_start_pos(k.k), b->data->min_key) < 0)
return "key before start of btree node";
if (bkey_cmp(k.k->p, b->data->max_key) > 0)
return "key past end of btree node";
return NULL;
}
void bch2_bkey_debugcheck(struct bch_fs *c, struct btree *b, struct bkey_s_c k)
{
enum bkey_type type = btree_node_type(b);
const struct bkey_ops *ops = &bch2_bkey_ops[type];
const char *invalid;
BUG_ON(!k.k->u64s);
invalid = bch2_bkey_invalid(c, type, k) ?:
bch2_bkey_in_btree_node(b, k);
if (invalid) {
char buf[160];
bch2_bkey_val_to_text(&PBUF(buf), c, type, k);
bch2_fs_bug(c, "invalid bkey %s: %s", buf, invalid);
return;
}
if (k.k->type >= KEY_TYPE_GENERIC_NR &&
ops->key_debugcheck)
ops->key_debugcheck(c, b, k);
}
void bch2_bpos_to_text(struct printbuf *out, struct bpos pos)
{
if (!bkey_cmp(pos, POS_MIN))
pr_buf(out, "POS_MIN");
else if (!bkey_cmp(pos, POS_MAX))
pr_buf(out, "POS_MAX");
else
pr_buf(out, "%llu:%llu", pos.inode, pos.offset);
}
void bch2_bkey_to_text(struct printbuf *out, const struct bkey *k)
{
pr_buf(out, "u64s %u type %u ", k->u64s, k->type);
bch2_bpos_to_text(out, k->p);
pr_buf(out, " snap %u len %u ver %llu",
k->p.snapshot, k->size, k->version.lo);
}
void bch2_val_to_text(struct printbuf *out, struct bch_fs *c,
enum bkey_type type, struct bkey_s_c k)
{
const struct bkey_ops *ops = &bch2_bkey_ops[type];
switch (k.k->type) {
case KEY_TYPE_DELETED:
pr_buf(out, " deleted");
break;
case KEY_TYPE_DISCARD:
pr_buf(out, " discard");
break;
case KEY_TYPE_ERROR:
pr_buf(out, " error");
break;
case KEY_TYPE_COOKIE:
pr_buf(out, " cookie");
break;
default:
if (k.k->type >= KEY_TYPE_GENERIC_NR && ops->val_to_text)
ops->val_to_text(out, c, k);
break;
}
}
void bch2_bkey_val_to_text(struct printbuf *out, struct bch_fs *c,
enum bkey_type type, struct bkey_s_c k)
{
bch2_bkey_to_text(out, k.k);
pr_buf(out, ": ");
bch2_val_to_text(out, c, type, k);
}
void bch2_bkey_swab(enum bkey_type type,
const struct bkey_format *f,
struct bkey_packed *k)
{
const struct bkey_ops *ops = &bch2_bkey_ops[type];
bch2_bkey_swab_key(f, k);
if (ops->swab)
ops->swab(f, k);
}
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