It's more intuitive to use jh_in->b_frozen_data directly instead of
done_copy_out variable. Simply remove unneeded done_copy_out variable
and use b_frozen_data instead.
Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
---
fs/jbd2/journal.c | 21 ++++++++-------------
1 file changed, 8 insertions(+), 13 deletions(-)
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 9c1ffb0dc740..f17d05bc61df 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -318,7 +318,6 @@ int jbd2_journal_write_metadata_buffer(transaction_t *transaction,
struct buffer_head **bh_out,
sector_t blocknr)
{
- int done_copy_out = 0;
int do_escape = 0;
char *mapped_data;
struct buffer_head *new_bh;
@@ -349,7 +348,6 @@ int jbd2_journal_write_metadata_buffer(transaction_t *transaction,
* we use that version of the data for the commit.
*/
if (jh_in->b_frozen_data) {
- done_copy_out = 1;
new_folio = virt_to_folio(jh_in->b_frozen_data);
new_offset = offset_in_folio(new_folio, jh_in->b_frozen_data);
mapped_data = jh_in->b_frozen_data;
@@ -357,17 +355,15 @@ int jbd2_journal_write_metadata_buffer(transaction_t *transaction,
new_folio = bh_in->b_folio;
new_offset = offset_in_folio(new_folio, bh_in->b_data);
mapped_data = kmap_local_folio(new_folio, new_offset);
- }
-
- /*
- * Fire data frozen trigger if data already wasn't frozen. Do this
- * before checking for escaping, as the trigger may modify the magic
- * offset. If a copy-out happens afterwards, it will have the correct
- * data in the buffer.
- */
- if (!done_copy_out)
+ /*
+ * Fire data frozen trigger if data already wasn't frozen. Do
+ * this before checking for escaping, as the trigger may modify
+ * the magic offset. If a copy-out happens afterwards, it will
+ * have the correct data in the buffer.
+ */
jbd2_buffer_frozen_trigger(jh_in, mapped_data,
jh_in->b_triggers);
+ }
/*
* Check for escaping
@@ -380,7 +376,7 @@ int jbd2_journal_write_metadata_buffer(transaction_t *transaction,
/*
* Do we need to do a data copy?
*/
- if (do_escape && !done_copy_out) {
+ if (do_escape && !jh_in->b_frozen_data) {
char *tmp;
spin_unlock(&jh_in->b_state_lock);
@@ -408,7 +404,6 @@ int jbd2_journal_write_metadata_buffer(transaction_t *transaction,
copy_done:
new_folio = virt_to_folio(jh_in->b_frozen_data);
new_offset = offset_in_folio(new_folio, jh_in->b_frozen_data);
- done_copy_out = 1;
}
/*
--
2.30.0
