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From: Kemeng Shi <shikemeng@huaweicloud.com>
To: tytso@mit.edu,
	jack@suse.com,
	yi.zhang@huaweicloud.com
Cc: linux-ext4@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v2 7/9] jbd2: remove dead equality check of j_commit_[sequence/request] in kjournald2
Date: Tue, 14 May 2024 19:24:36 +0800
Message-Id: <20240514112438.1269037-8-shikemeng@huaweicloud.com>
In-Reply-To: <20240514112438.1269037-1-shikemeng@huaweicloud.com>
References: <20240514112438.1269037-1-shikemeng@huaweicloud.com>
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The j_commit_[sequence/request] are updated with j_state_lock held during
runtime. In kjournald2, two equality checks of j_commit_[sequence/request]
are under the same j_state_lock, then the second check is unnecessary.

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

diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 71568cb82db7..4f1ab68cdb6f 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -224,8 +224,6 @@ static int kjournald2(void *arg)
 
 		prepare_to_wait(&journal->j_wait_commit, &wait,
 				TASK_INTERRUPTIBLE);
-		if (journal->j_commit_sequence != journal->j_commit_request)
-			should_sleep = 0;
 		transaction = journal->j_running_transaction;
 		if (transaction && time_after_eq(jiffies,
 						transaction->t_expires))
-- 
2.30.0