linux-ext4 - [PATCH v3 08/11] fs: drop redundant check from __writeback_single

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 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]

Date:   Tue, 12 Jan 2021 11:02:50 -0800
From:   Eric Biggers <ebiggers@...nel.org>
To:     linux-fsdevel@...r.kernel.org
Cc:     linux-xfs@...r.kernel.org, linux-ext4@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net,
        Theodore Ts'o <tytso@....edu>, Christoph Hellwig <hch@....de>,
        Jan Kara <jack@...e.cz>
Subject: [PATCH v3 08/11] fs: drop redundant check from __writeback_single_inode()

From: Eric Biggers <ebiggers@...gle.com>

wbc->for_sync implies wbc->sync_mode == WB_SYNC_ALL, so there's no need
to check for both.  Just check for WB_SYNC_ALL.

Reviewed-by: Christoph Hellwig <hch@....de>
Reviewed-by: Jan Kara <jack@...e.cz>
Signed-off-by: Eric Biggers <ebiggers@...gle.com>
---
 fs/fs-writeback.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 80ee9816d9df5..cee1df6e3bd43 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -1479,7 +1479,7 @@ __writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
 	 * change I_DIRTY_TIME into I_DIRTY_SYNC.
 	 */
 	if ((inode->i_state & I_DIRTY_TIME) &&
-	    (wbc->sync_mode == WB_SYNC_ALL || wbc->for_sync ||
+	    (wbc->sync_mode == WB_SYNC_ALL ||
 	     time_after(jiffies, inode->dirtied_time_when +
 			dirtytime_expire_interval * HZ))) {
 		trace_writeback_lazytime(inode);
-- 
2.30.0