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jbd2: remove unnedded "need_copy_out" in jbd2_journal_write_metadata_buffer

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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@huaweicloud.com>
Reviewed-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20240514112438.1269037-4-shikemeng@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Kemeng Shi 2024-05-14 19:24:32 +08:00 committed by Theodore Ts'o
parent abe48a5225
commit 5dd3e8c075
1 changed files with 2 additions and 5 deletions
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7
fs/jbd2/journal.c
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@ -325,7 +325,6 @@ 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;
@ -380,16 +379,14 @@ repeat:
/*
* 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);