linux-kernel - [PATCH v2] f2fs: stop discard thread if has fsck tag

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-next>] [day] [month] [year] [list]

Date:   Fri, 28 Oct 2022 22:37:33 +0800
From:   Yangtao Li <frank.li@...o.com>
To:     jaegeuk@...nel.org, chao@...nel.org
Cc:     linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, Yangtao Li <frank.li@...o.com>
Subject: [PATCH v2] f2fs: stop discard thread if has fsck tag

Under the current logic, after the fsck flag is set,
the discard thread will still run periodically.

So stop the discard thread from running to avoid
energy consumption after the fsck flag is set.

Fixes: d618477473eb ("f2fs: stop issue discard if something wrong with f2fs")
Signed-off-by: Yangtao Li <frank.li@...o.com>
---
v2:
- commit msg changes.
 fs/f2fs/segment.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 7786351de429..b3600bcadfc7 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1716,8 +1716,8 @@ static int issue_discard_thread(void *data)
 		if (kthread_should_stop())
 			return 0;
 		if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) {
-			wait_ms = dpolicy.max_interval;
-			continue;
+			dcc->f2fs_issue_discard = NULL;
+			return 0;
 		}
 		if (!atomic_read(&dcc->discard_cmd_cnt))
 			continue;
-- 
2.25.1