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Tue, 14 May 2024 19:25:15 +0800 (CST) From: Kemeng Shi 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> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20240514112438.1269037-1-shikemeng@huaweicloud.com> References: <20240514112438.1269037-1-shikemeng@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: _Ch0CgCHSKAXSkNm4rTMMQ--.61831S9 X-Coremail-Antispam: 1UD129KBjvdXoWrZw17AFW8Aw4kGF1xXF48tFb_yoWfKrg_WF WIyrnrZrWfKr45Aa1rCw1Uur1a9rsrZFn5X3Z7tw1DKr1Uta92qFykJFZ0kwnxW3yvqr43 Aa93Ka1xtr9avjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbTxFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUAVCq3wA2048vs2 IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxSw2x7M28E F7xvwVC0I7IYx2IY67AKxVW7JVWDJwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxVW8Jr0_Cr 1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I0E14v26rxl6s0D M2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjx v20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1l F7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7MxAIw28IcxkI7VAKI48JMx C20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAF wI0_JrI_JrWlx4CE17CEb7AF67AKxVWUAVWUtwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20x vE14v26r1I6r4UMIIF0xvE2Ix0cI8IcVCY1x0267AKxVW8JVWxJwCI42IY6xAIw20EY4v2 0xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxV W8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7VUbmZX7UUUUU== X-CM-SenderInfo: 5vklyvpphqwq5kxd4v5lfo033gof0z/ 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 Reviewed-by: Zhang Yi Reviewed-by: Jan Kara --- 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))