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authorKent Overstreet <kent.overstreet@linux.dev>2023-11-27 08:53:46 +0300
committerKent Overstreet <kent.overstreet@linux.dev>2023-11-29 06:58:22 +0300
commitef0beeb8dd343a57cf8ad4967b508b8e7452f347 (patch)
tree24a9ccb7ad81b53b948a71cc7a4205376a9c7af2
parent1b1bd0fd41577400434d5948edc2679092c57b08 (diff)
downloadlinux-ef0beeb8dd343a57cf8ad4967b508b8e7452f347.tar.xz
bcachefs: move journal seq assertion
journal_cur_seq() can legitimately be used outside of the journal lock, where this assert can race Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
-rw-r--r--fs/bcachefs/journal.c2
-rw-r--r--fs/bcachefs/journal.h4
2 files changed, 3 insertions, 3 deletions
diff --git a/fs/bcachefs/journal.c b/fs/bcachefs/journal.c
index 23a9b7845d11..489b34046e78 100644
--- a/fs/bcachefs/journal.c
+++ b/fs/bcachefs/journal.c
@@ -321,6 +321,8 @@ static int journal_entry_open(struct journal *j)
atomic64_inc(&j->seq);
journal_pin_list_init(fifo_push_ref(&j->pin), 1);
+ BUG_ON(j->pin.back - 1 != atomic64_read(&j->seq));
+
BUG_ON(j->buf + (journal_cur_seq(j) & JOURNAL_BUF_MASK) != buf);
bkey_extent_init(&buf->key);
diff --git a/fs/bcachefs/journal.h b/fs/bcachefs/journal.h
index c85d01cf4948..4c513fca5ef2 100644
--- a/fs/bcachefs/journal.h
+++ b/fs/bcachefs/journal.h
@@ -136,9 +136,7 @@ static inline u64 journal_last_seq(struct journal *j)
static inline u64 journal_cur_seq(struct journal *j)
{
- EBUG_ON(j->pin.back - 1 != atomic64_read(&j->seq));
-
- return j->pin.back - 1;
+ return atomic64_read(&j->seq);
}
static inline u64 journal_last_unwritten_seq(struct journal *j)