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-rw-r--r--fs/bcachefs/btree_write_buffer.c30
-rw-r--r--fs/bcachefs/btree_write_buffer.h1
-rw-r--r--fs/bcachefs/super.c1
3 files changed, 29 insertions, 3 deletions
diff --git a/fs/bcachefs/btree_write_buffer.c b/fs/bcachefs/btree_write_buffer.c
index 3f56b584f8ec..1639c60dffa0 100644
--- a/fs/bcachefs/btree_write_buffer.c
+++ b/fs/bcachefs/btree_write_buffer.c
@@ -277,6 +277,10 @@ static int bch2_btree_write_buffer_flush_locked(struct btree_trans *trans)
bool accounting_replay_done = test_bit(BCH_FS_accounting_replay_done, &c->flags);
int ret = 0;
+ ret = bch2_journal_error(&c->journal);
+ if (ret)
+ return ret;
+
bch2_trans_unlock(trans);
bch2_trans_begin(trans);
@@ -491,7 +495,8 @@ static int fetch_wb_keys_from_journal(struct bch_fs *c, u64 seq)
return ret;
}
-static int btree_write_buffer_flush_seq(struct btree_trans *trans, u64 seq)
+static int btree_write_buffer_flush_seq(struct btree_trans *trans, u64 seq,
+ bool *did_work)
{
struct bch_fs *c = trans->c;
struct btree_write_buffer *wb = &c->btree_write_buffer;
@@ -502,6 +507,8 @@ static int btree_write_buffer_flush_seq(struct btree_trans *trans, u64 seq)
fetch_from_journal_err = fetch_wb_keys_from_journal(c, seq);
+ *did_work |= wb->inc.keys.nr || wb->flushing.keys.nr;
+
/*
* On memory allocation failure, bch2_btree_write_buffer_flush_locked()
* is not guaranteed to empty wb->inc:
@@ -521,17 +528,34 @@ static int bch2_btree_write_buffer_journal_flush(struct journal *j,
struct journal_entry_pin *_pin, u64 seq)
{
struct bch_fs *c = container_of(j, struct bch_fs, journal);
+ bool did_work = false;
- return bch2_trans_run(c, btree_write_buffer_flush_seq(trans, seq));
+ return bch2_trans_run(c, btree_write_buffer_flush_seq(trans, seq, &did_work));
}
int bch2_btree_write_buffer_flush_sync(struct btree_trans *trans)
{
struct bch_fs *c = trans->c;
+ bool did_work = false;
trace_and_count(c, write_buffer_flush_sync, trans, _RET_IP_);
- return btree_write_buffer_flush_seq(trans, journal_cur_seq(&c->journal));
+ return btree_write_buffer_flush_seq(trans, journal_cur_seq(&c->journal), &did_work);
+}
+
+/*
+ * The write buffer requires flushing when going RO: keys in the journal for the
+ * write buffer don't have a journal pin yet
+ */
+bool bch2_btree_write_buffer_flush_going_ro(struct bch_fs *c)
+{
+ if (bch2_journal_error(&c->journal))
+ return false;
+
+ bool did_work = false;
+ bch2_trans_run(c, btree_write_buffer_flush_seq(trans,
+ journal_cur_seq(&c->journal), &did_work));
+ return did_work;
}
int bch2_btree_write_buffer_flush_nocheck_rw(struct btree_trans *trans)
diff --git a/fs/bcachefs/btree_write_buffer.h b/fs/bcachefs/btree_write_buffer.h
index 725e79654216..d535cea28bde 100644
--- a/fs/bcachefs/btree_write_buffer.h
+++ b/fs/bcachefs/btree_write_buffer.h
@@ -21,6 +21,7 @@ static inline bool bch2_btree_write_buffer_must_wait(struct bch_fs *c)
struct btree_trans;
int bch2_btree_write_buffer_flush_sync(struct btree_trans *);
+bool bch2_btree_write_buffer_flush_going_ro(struct bch_fs *);
int bch2_btree_write_buffer_flush_nocheck_rw(struct btree_trans *);
int bch2_btree_write_buffer_tryflush(struct btree_trans *);
diff --git a/fs/bcachefs/super.c b/fs/bcachefs/super.c
index 657fd3759e7b..a6ed9a0bf1c7 100644
--- a/fs/bcachefs/super.c
+++ b/fs/bcachefs/super.c
@@ -272,6 +272,7 @@ static void __bch2_fs_read_only(struct bch_fs *c)
clean_passes++;
if (bch2_btree_interior_updates_flush(c) ||
+ bch2_btree_write_buffer_flush_going_ro(c) ||
bch2_journal_flush_all_pins(&c->journal) ||
bch2_btree_flush_all_writes(c) ||
seq != atomic64_read(&c->journal.seq)) {