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bcachefs: Improve journal_entry_err_msg()

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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2023-08-06 10:57:25 -04:00
parent e08e63e44e
commit a8712967bf
1 changed files with 51 additions and 45 deletions
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96
fs/bcachefs/journal_io.c
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@ -208,30 +208,38 @@ static void journal_entry_null_range(void *start, void *end)
#define JOURNAL_ENTRY_BAD 7
static void journal_entry_err_msg(struct printbuf *out,
u32 version,
struct jset *jset,
struct jset_entry *entry)
{
prt_str(out, "invalid journal entry ");
if (entry)
prt_printf(out, "%s ", bch2_jset_entry_types[entry->type]);
prt_str(out, "invalid journal entry, version=");
bch2_version_to_text(out, version);
if (entry) {
prt_str(out, " type=");
prt_str(out, bch2_jset_entry_types[entry->type]);
}
if (!jset) {
prt_printf(out, " in superblock");
} else {
prt_printf(out, " seq=%llu", le64_to_cpu(jset->seq));
if (entry)
prt_printf(out, " offset=%zi/%u",
(u64 *) entry - jset->_data,
le32_to_cpu(jset->u64s));
}
if (!jset)
prt_printf(out, "in superblock");
else if (!entry)
prt_printf(out, "at seq %llu", le64_to_cpu(jset->seq));
else
prt_printf(out, "at offset %zi/%u seq %llu",
(u64 *) entry - jset->_data,
le32_to_cpu(jset->u64s),
le64_to_cpu(jset->seq));
prt_str(out, ": ");
}
#define journal_entry_err(c, jset, entry, msg, ...) \
#define journal_entry_err(c, version, jset, entry, msg, ...) \
({ \
struct printbuf buf = PRINTBUF; \
\
journal_entry_err_msg(&buf, jset, entry); \
journal_entry_err_msg(&buf, version, jset, entry); \
prt_printf(&buf, msg, ##__VA_ARGS__); \
\
switch (write) { \
@ -251,8 +259,8 @@ static void journal_entry_err_msg(struct printbuf *out,
true; \
})
#define journal_entry_err_on(cond, c, jset, entry, msg, ...) \
((cond) ? journal_entry_err(c, jset, entry, msg, ##__VA_ARGS__) : false)
#define journal_entry_err_on(cond, c, version, jset, entry, msg, ...) \
((cond) ? journal_entry_err(c, version, jset, entry, msg, ##__VA_ARGS__) : false)
#define FSCK_DELETED_KEY 5
@ -267,7 +275,7 @@ static int journal_validate_key(struct bch_fs *c,
struct printbuf buf = PRINTBUF;
int ret = 0;
if (journal_entry_err_on(!k->k.u64s, c, jset, entry, "k->u64s 0")) {
if (journal_entry_err_on(!k->k.u64s, c, version, jset, entry, "k->u64s 0")) {
entry->u64s = cpu_to_le16((u64 *) k - entry->_data);
journal_entry_null_range(vstruct_next(entry), next);
return FSCK_DELETED_KEY;
@ -275,7 +283,7 @@ static int journal_validate_key(struct bch_fs *c,
if (journal_entry_err_on((void *) bkey_next(k) >
(void *) vstruct_next(entry),
c, jset, entry,
c, version, jset, entry,
"extends past end of journal entry")) {
entry->u64s = cpu_to_le16((u64 *) k - entry->_data);
journal_entry_null_range(vstruct_next(entry), next);
@ -283,7 +291,7 @@ static int journal_validate_key(struct bch_fs *c,
}
if (journal_entry_err_on(k->k.format != KEY_FORMAT_CURRENT,
c, jset, entry,
c, version, jset, entry,
"bad format %u", k->k.format)) {
le16_add_cpu(&entry->u64s, -((u16) k->k.u64s));
memmove(k, bkey_next(k), next - (void *) bkey_next(k));
@ -298,11 +306,7 @@ static int journal_validate_key(struct bch_fs *c,
if (bch2_bkey_invalid(c, bkey_i_to_s_c(k),
__btree_node_type(level, btree_id), write, &buf)) {
printbuf_reset(&buf);
prt_printf(&buf, "invalid journal entry %s at offset %zi/%u seq %llu:",
bch2_jset_entry_types[entry->type],
(u64 *) entry - jset->_data,
le32_to_cpu(jset->u64s),
le64_to_cpu(jset->seq));
journal_entry_err_msg(&buf, version, jset, entry);
prt_newline(&buf);
printbuf_indent_add(&buf, 2);
@ -378,7 +382,7 @@ static int journal_entry_btree_root_validate(struct bch_fs *c,
if (journal_entry_err_on(!entry->u64s ||
le16_to_cpu(entry->u64s) != k->k.u64s,
c, jset, entry,
c, version, jset, entry,
"invalid btree root journal entry: wrong number of keys")) {
void *next = vstruct_next(entry);
/*
@ -425,7 +429,7 @@ static int journal_entry_blacklist_validate(struct bch_fs *c,
int ret = 0;
if (journal_entry_err_on(le16_to_cpu(entry->u64s) != 1,
c, jset, entry,
c, version, jset, entry,
"invalid journal seq blacklist entry: bad size")) {
journal_entry_null_range(entry, vstruct_next(entry));
}
@ -451,7 +455,7 @@ static int journal_entry_blacklist_v2_validate(struct bch_fs *c,
int ret = 0;
if (journal_entry_err_on(le16_to_cpu(entry->u64s) != 2,
c, jset, entry,
c, version, jset, entry,
"invalid journal seq blacklist entry: bad size")) {
journal_entry_null_range(entry, vstruct_next(entry));
goto out;
@ -461,7 +465,7 @@ static int journal_entry_blacklist_v2_validate(struct bch_fs *c,
if (journal_entry_err_on(le64_to_cpu(bl_entry->start) >
le64_to_cpu(bl_entry->end),
c, jset, entry,
c, version, jset, entry,
"invalid journal seq blacklist entry: start > end")) {
journal_entry_null_range(entry, vstruct_next(entry));
}
@ -492,7 +496,7 @@ static int journal_entry_usage_validate(struct bch_fs *c,
int ret = 0;
if (journal_entry_err_on(bytes < sizeof(*u),
c, jset, entry,
c, version, jset, entry,
"invalid journal entry usage: bad size")) {
journal_entry_null_range(entry, vstruct_next(entry));
return ret;
@ -525,7 +529,7 @@ static int journal_entry_data_usage_validate(struct bch_fs *c,
if (journal_entry_err_on(bytes < sizeof(*u) ||
bytes < sizeof(*u) + u->r.nr_devs,
c, jset, entry,
c, version, jset, entry,
"invalid journal entry usage: bad size")) {
journal_entry_null_range(entry, vstruct_next(entry));
return ret;
@ -556,13 +560,13 @@ static int journal_entry_clock_validate(struct bch_fs *c,
int ret = 0;
if (journal_entry_err_on(bytes != sizeof(*clock),
c, jset, entry, "bad size")) {
c, version, jset, entry, "bad size")) {
journal_entry_null_range(entry, vstruct_next(entry));
return ret;
}
if (journal_entry_err_on(clock->rw > 1,
c, jset, entry, "bad rw")) {
c, version, jset, entry, "bad rw")) {
journal_entry_null_range(entry, vstruct_next(entry));
return ret;
}
@ -593,7 +597,7 @@ static int journal_entry_dev_usage_validate(struct bch_fs *c,
int ret = 0;
if (journal_entry_err_on(bytes < expected,
c, jset, entry, "bad size (%u < %u)",
c, version, jset, entry, "bad size (%u < %u)",
bytes, expected)) {
journal_entry_null_range(entry, vstruct_next(entry));
return ret;
@ -602,13 +606,13 @@ static int journal_entry_dev_usage_validate(struct bch_fs *c,
dev = le32_to_cpu(u->dev);
if (journal_entry_err_on(!bch2_dev_exists2(c, dev),
c, jset, entry, "bad dev")) {
c, version, jset, entry, "bad dev")) {
journal_entry_null_range(entry, vstruct_next(entry));
return ret;
}
if (journal_entry_err_on(u->pad,
c, jset, entry, "bad pad")) {
c, version, jset, entry, "bad pad")) {
journal_entry_null_range(entry, vstruct_next(entry));
return ret;
}
@ -714,19 +718,19 @@ static int jset_validate_entries(struct bch_fs *c, struct jset *jset,
int write)
{
struct jset_entry *entry;
unsigned version = le32_to_cpu(jset->version);
int ret = 0;
vstruct_for_each(jset, entry) {
if (journal_entry_err_on(vstruct_next(entry) >
vstruct_last(jset), c, jset, entry,
if (journal_entry_err_on(vstruct_next(entry) > vstruct_last(jset),
c, version, jset, entry,
"journal entry extends past end of jset")) {
jset->u64s = cpu_to_le32((u64 *) entry - jset->_data);
break;
}
ret = bch2_journal_entry_validate(c, jset, entry,
le32_to_cpu(jset->version),
JSET_BIG_ENDIAN(jset), write);
version, JSET_BIG_ENDIAN(jset), write);
if (ret)
break;
}
@ -746,7 +750,8 @@ static int jset_validate(struct bch_fs *c,
return JOURNAL_ENTRY_NONE;
version = le32_to_cpu(jset->version);
if (journal_entry_err_on(!bch2_version_compatible(version), c, jset, NULL,
if (journal_entry_err_on(!bch2_version_compatible(version),
c, version, jset, NULL,
"%s sector %llu seq %llu: incompatible journal entry version %u.%u",
ca ? ca->name : c->name,
sector, le64_to_cpu(jset->seq),
@ -757,7 +762,7 @@ static int jset_validate(struct bch_fs *c,
}
if (journal_entry_err_on(!bch2_checksum_type_valid(c, JSET_CSUM_TYPE(jset)),
c, jset, NULL,
c, version, jset, NULL,
"%s sector %llu seq %llu: journal entry with unknown csum type %llu",
ca ? ca->name : c->name,
sector, le64_to_cpu(jset->seq),
@ -767,7 +772,7 @@ static int jset_validate(struct bch_fs *c,
/* last_seq is ignored when JSET_NO_FLUSH is true */
if (journal_entry_err_on(!JSET_NO_FLUSH(jset) &&
le64_to_cpu(jset->last_seq) > le64_to_cpu(jset->seq),
c, jset, NULL,
c, version, jset, NULL,
"invalid journal entry: last_seq > seq (%llu > %llu)",
le64_to_cpu(jset->last_seq),
le64_to_cpu(jset->seq))) {
@ -795,7 +800,8 @@ static int jset_validate_early(struct bch_fs *c,
return JOURNAL_ENTRY_NONE;
version = le32_to_cpu(jset->version);
if (journal_entry_err_on(!bch2_version_compatible(version), c, jset, NULL,
if (journal_entry_err_on(!bch2_version_compatible(version),
c, version, jset, NULL,
"%s sector %llu seq %llu: unknown journal entry version %u.%u",
ca ? ca->name : c->name,
sector, le64_to_cpu(jset->seq),
@ -810,7 +816,7 @@ static int jset_validate_early(struct bch_fs *c,
return JOURNAL_ENTRY_REREAD;
if (journal_entry_err_on(bytes > bucket_sectors_left << 9,
c, jset, NULL,
c, version, jset, NULL,
"%s sector %llu seq %llu: journal entry too big (%zu bytes)",
ca ? ca->name : c->name,
sector, le64_to_cpu(jset->seq), bytes))
@ -1149,7 +1155,7 @@ int bch2_journal_read(struct bch_fs *c,
}
if (journal_entry_err_on(le64_to_cpu(i->j.last_seq) > le64_to_cpu(i->j.seq),
c, &i->j, NULL,
c, le32_to_cpu(i->j.version), &i->j, NULL,
"invalid journal entry: last_seq > seq (%llu > %llu)",
le64_to_cpu(i->j.last_seq),
le64_to_cpu(i->j.seq)))