linux-kernel - [PATCH 3/3] f2fs: avoid unneeded barrier in do

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20200218102136.32150-3-yuchao0@huawei.com>
Date:   Tue, 18 Feb 2020 18:21:36 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     <jaegeuk@...nel.org>
CC:     <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>, <chao@...nel.org>,
        Chao Yu <yuchao0@...wei.com>
Subject: [PATCH 3/3] f2fs: avoid unneeded barrier in do_checkpoint()

We don't need to wait all dirty page submitting IO twice,
remove unneeded wait step.

Signed-off-by: Chao Yu <yuchao0@...wei.com>
---
 fs/f2fs/checkpoint.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 751815cb4c2b..9c88fb3d255a 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -1384,8 +1384,6 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
 
 	/* Flush all the NAT/SIT pages */
 	f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO);
-	/* Wait for all dirty meta pages to be submitted for IO */
-	f2fs_wait_on_all_pages(sbi, F2FS_DIRTY_META);
 
 	/*
 	 * modify checkpoint
-- 
2.18.0.rc1