linux-kernel - [PATCH] f2fs: fix align check for npo2

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]

Date:   Thu, 23 Mar 2023 16:23:38 +0900
From:   Yohan Joung <jyh429@...il.com>
To:     lkp@...el.com
Cc:     chao@...nel.org, jaegeuk@...nel.org, jyh429@...il.com,
        linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, oe-kbuild-all@...ts.linux.dev,
        Yohan Joung <yohan.joung@...com>
Subject: [PATCH] f2fs: fix align check for npo2

Fix alignment check to be correct in npo2 as well

Signed-off-by: Yohan Joung <yohan.joung@...com>
---
 fs/f2fs/segment.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 055e70e77aa2..46458085a8d0 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1858,7 +1858,7 @@ static int __f2fs_issue_discard_zone(struct f2fs_sb_info *sbi,
 		sector = SECTOR_FROM_BLOCK(blkstart);
 		nr_sects = SECTOR_FROM_BLOCK(blklen);
 
-		if (sector & (bdev_zone_sectors(bdev) - 1) ||
+		if (sector % bdev_zone_sectors(bdev) ||
 				nr_sects != bdev_zone_sectors(bdev)) {
 			f2fs_err(sbi, "(%d) %s: Unaligned zone reset attempted (block %x + %x)",
 				 devi, sbi->s_ndevs ? FDEV(devi).path : "",

base-commit: d15180a8d1d72c7bddcb700d2c9ffdab7d2b9481
-- 
2.25.1