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authorKent Overstreet <kent.overstreet@linux.dev>2023-09-19 22:36:30 -0400
committerKent Overstreet <kent.overstreet@linux.dev>2023-09-19 22:36:30 -0400
commit0528bebd8b42ce43a39da8e911bf21825f5085dd (patch)
tree7f08eeb8900e10f35b1ea9955d12540af49c9382
parent1c0cfb0abe14594347fa0639fe728f068be92deb (diff)
bcachefs: drop journal lock before calling journal_write
bch2_journal_write() expects process context, it takes journal_lock as needed. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
-rw-r--r--fs/bcachefs/journal_io.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/bcachefs/journal_io.c b/fs/bcachefs/journal_io.c
index 269c8e8a1d95..6a3d6a374e9c 100644
--- a/fs/bcachefs/journal_io.c
+++ b/fs/bcachefs/journal_io.c
@@ -1554,6 +1554,7 @@ static void journal_write_done(struct closure *cl)
if (!journal_state_count(new, new.unwritten_idx) &&
journal_last_unwritten_seq(j) <= journal_cur_seq(j)) {
+ spin_unlock(&j->lock);
closure_call(&j->io, bch2_journal_write, c->io_complete_wq, NULL);
} else if (journal_last_unwritten_seq(j) == journal_cur_seq(j) &&
new.cur_entry_offset < JOURNAL_ENTRY_CLOSED_VAL) {
@@ -1566,10 +1567,11 @@ static void journal_write_done(struct closure *cl)
* might want to be written now:
*/
+ spin_unlock(&j->lock);
mod_delayed_work(c->io_complete_wq, &j->write_work, max(0L, delta));
+ } else {
+ spin_unlock(&j->lock);
}
-
- spin_unlock(&j->lock);
}
static void journal_write_endio(struct bio *bio)