linux-kernel - [PATCH v2 8/9] jbd2: remove dead check of JBD2

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Message-Id: <20240514112438.1269037-9-shikemeng@huaweicloud.com>
Date: Tue, 14 May 2024 19:24:37 +0800
From: Kemeng Shi <shikemeng@...weicloud.com>
To: tytso@....edu,
	jack@...e.com,
	yi.zhang@...weicloud.com
Cc: linux-ext4@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 8/9] jbd2: remove dead check of JBD2_UNMOUNT in kjournald2

We always set JBD2_UNMOUNT with j_state_lock held in journal_kill_thread.
In kjournald2, we check JBD2_UNMOUNT flag two times under the same
j_state_lock. Then the second check is unnecessary.

Signed-off-by: Kemeng Shi <shikemeng@...weicloud.com>
Reviewed-by: Zhang Yi <yi.zhang@...wei.com>
Reviewed-by: Jan Kara <jack@...e.cz>
---
 fs/jbd2/journal.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 4f1ab68cdb6f..59bff0b75ce7 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -228,8 +228,6 @@ static int kjournald2(void *arg)
 		if (transaction && time_after_eq(jiffies,
 						transaction->t_expires))
 			should_sleep = 0;
-		if (journal->j_flags & JBD2_UNMOUNT)
-			should_sleep = 0;
 		if (should_sleep) {
 			write_unlock(&journal->j_state_lock);
 			schedule();
-- 
2.30.0