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bcachefs: split out ignore_blacklisted, ignore_not_dirty 

prep work for replaying the journal backwards

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-02-25 18:48:21 -05:00
parent 69426613cd
commit 2cce3752ce
5 changed files with 33 additions and 21 deletions
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2
fs/bcachefs/btree_journal_iter.c
View File

@ -512,7 +512,7 @@ int bch2_journal_keys_sort(struct bch_fs *c)
genradix_for_each(&c->journal_entries, iter, _i) {
i = *_i;
if (!i || i->ignore)
if (journal_replay_ignore(i))
continue;
cond_resched();

4
fs/bcachefs/journal.c
View File

@ -1204,7 +1204,7 @@ int bch2_fs_journal_start(struct journal *j, u64 cur_seq)
genradix_for_each_reverse(&c->journal_entries, iter, _i) {
i = *_i;
if (!i || i->ignore)
if (journal_replay_ignore(i))
continue;
last_seq = le64_to_cpu(i->j.last_seq);
@ -1237,7 +1237,7 @@ int bch2_fs_journal_start(struct journal *j, u64 cur_seq)
genradix_for_each(&c->journal_entries, iter, _i) {
i = *_i;
if (!i || i->ignore)
if (journal_replay_ignore(i))
continue;
seq = le64_to_cpu(i->j.seq);

33
fs/bcachefs/journal_io.c
View File

@ -86,9 +86,12 @@ static void __journal_replay_free(struct bch_fs *c,
kvfree(i);
}
static void journal_replay_free(struct bch_fs *c, struct journal_replay *i)
static void journal_replay_free(struct bch_fs *c, struct journal_replay *i, bool blacklisted)
{
i->ignore = true;
if (blacklisted)
i->ignore_blacklisted = true;
else
i->ignore_not_dirty = true;
if (!c->opts.read_entire_journal)
__journal_replay_free(c, i);
@ -138,12 +141,13 @@ static int journal_entry_add(struct bch_fs *c, struct bch_dev *ca,
journal_entry_radix_idx(c, jlist->last_seq)) {
i = *_i;
if (!i || i->ignore)
if (journal_replay_ignore(i))
continue;
if (le64_to_cpu(i->j.seq) >= last_seq)
break;
journal_replay_free(c, i);
journal_replay_free(c, i, false);
}
}
@ -199,8 +203,9 @@ replace:
return -BCH_ERR_ENOMEM_journal_entry_add;
darray_init(&i->ptrs);
i->csum_good = entry_ptr.csum_good;
i->ignore = false;
i->csum_good = entry_ptr.csum_good;
i->ignore_blacklisted = false;
i->ignore_not_dirty = false;
unsafe_memcpy(&i->j, j, bytes, "embedded variable length struct");
if (dup) {
@ -1255,20 +1260,20 @@ int bch2_journal_read(struct bch_fs *c,
i = *_i;
if (!i || i->ignore)
if (journal_replay_ignore(i))
continue;
if (!*start_seq)
*blacklist_seq = *start_seq = le64_to_cpu(i->j.seq) + 1;
if (JSET_NO_FLUSH(&i->j)) {
i->ignore = true;
i->ignore_blacklisted = true;
continue;
}
if (!last_write_torn && !i->csum_good) {
last_write_torn = true;
i->ignore = true;
i->ignore_blacklisted = true;
continue;
}
@ -1307,12 +1312,12 @@ int bch2_journal_read(struct bch_fs *c,
genradix_for_each(&c->journal_entries, radix_iter, _i) {
i = *_i;
if (!i || i->ignore)
if (journal_replay_ignore(i))
continue;
seq = le64_to_cpu(i->j.seq);
if (seq < *last_seq) {
journal_replay_free(c, i);
journal_replay_free(c, i, false);
continue;
}
@ -1320,7 +1325,7 @@ int bch2_journal_read(struct bch_fs *c,
fsck_err_on(!JSET_NO_FLUSH(&i->j), c,
jset_seq_blacklisted,
"found blacklisted journal entry %llu", seq);
i->ignore = true;
i->ignore_blacklisted = true;
}
}
@ -1329,7 +1334,7 @@ int bch2_journal_read(struct bch_fs *c,
genradix_for_each(&c->journal_entries, radix_iter, _i) {
i = *_i;
if (!i || i->ignore)
if (journal_replay_ignore(i))
continue;
BUG_ON(seq > le64_to_cpu(i->j.seq));
@ -1382,7 +1387,7 @@ int bch2_journal_read(struct bch_fs *c,
};
i = *_i;
if (!i || i->ignore)
if (journal_replay_ignore(i))
continue;
darray_for_each(i->ptrs, ptr) {

8
fs/bcachefs/journal_io.h
View File

@ -20,11 +20,17 @@ struct journal_replay {
DARRAY_PREALLOCATED(struct journal_ptr, 8) ptrs;
bool csum_good;
bool ignore;
bool ignore_blacklisted;
bool ignore_not_dirty;
/* must be last: */
struct jset j;
};
static inline bool journal_replay_ignore(struct journal_replay *i)
{
return !i || i->ignore_blacklisted || i->ignore_not_dirty;
}
static inline struct jset_entry *__jset_entry_type_next(struct jset *jset,
struct jset_entry *entry, unsigned type)
{

7
fs/bcachefs/recovery.c
View File

@ -366,7 +366,7 @@ static int journal_replay_early(struct bch_fs *c,
genradix_for_each(&c->journal_entries, iter, _i) {
i = *_i;
if (!i || i->ignore)
if (journal_replay_ignore(i))
continue;
vstruct_for_each(&i->j, entry) {
@ -868,7 +868,7 @@ int bch2_fs_recovery(struct bch_fs *c)
goto out;
genradix_for_each_reverse(&c->journal_entries, iter, i)
if (*i && !(*i)->ignore) {
if (!journal_replay_ignore(*i)) {
last_journal_entry = &(*i)->j;
break;
}
@ -893,7 +893,8 @@ int bch2_fs_recovery(struct bch_fs *c)
genradix_for_each_reverse(&c->journal_entries, iter, i)
if (*i) {
last_journal_entry = &(*i)->j;
(*i)->ignore = false;
(*i)->ignore_blacklisted = false;
(*i)->ignore_not_dirty= false;
/*
* This was probably a NO_FLUSH entry,
* so last_seq was garbage - but we know