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Message-Id: <20240506141801.1165315-4-shikemeng@huaweicloud.com>
Date: Mon, 6 May 2024 22:17:55 +0800
From: Kemeng Shi <shikemeng@...weicloud.com>
To: tytso@....edu,
jack@...e.com
Cc: linux-ext4@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 3/9] jbd2: remove unnedded "need_copy_out" in jbd2_journal_write_metadata_buffer
As we only need to copy out when we should do escape, need_copy_out
could be simply replaced by "do_escape".
Signed-off-by: Kemeng Shi <shikemeng@...weicloud.com>
---
fs/jbd2/journal.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 068031f35aea..9a35d0c5b38c 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -327,7 +327,6 @@ int jbd2_journal_write_metadata_buffer(transaction_t *transaction,
struct buffer_head **bh_out,
sector_t blocknr)
{
- int need_copy_out = 0;
int done_copy_out = 0;
int do_escape = 0;
char *mapped_data;
@@ -382,16 +381,14 @@ int jbd2_journal_write_metadata_buffer(transaction_t *transaction,
/*
* Check for escaping
*/
- if (*((__be32 *)mapped_data) == cpu_to_be32(JBD2_MAGIC_NUMBER)) {
- need_copy_out = 1;
+ if (*((__be32 *)mapped_data) == cpu_to_be32(JBD2_MAGIC_NUMBER))
do_escape = 1;
- }
kunmap_local(mapped_data);
/*
* Do we need to do a data copy?
*/
- if (need_copy_out && !done_copy_out) {
+ if (do_escape && !done_copy_out) {
char *tmp;
spin_unlock(&jh_in->b_state_lock);
--
2.30.0
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