linux-kernel - [PATCH v1] f2fs: remove device type check for direct IO

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] [day] [month] [year] [list]

Message-ID: <20220801044002epcms2p5a832b87ab1e6c8f0391d8d26f33c042c@epcms2p5>
Date:   Mon, 01 Aug 2022 13:40:02 +0900
From:   Eunhee Rho <eunhee83.rho@...sung.com>
To:     Jaegeuk Kim <jaegeuk@...nel.org>,
        "chao@...nel.org" <chao@...nel.org>,
        "linux-f2fs-devel@...ts.sourceforge.net" 
        <linux-f2fs-devel@...ts.sourceforge.net>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH v1] f2fs: remove device type check for direct IO

To ensure serialized IOs, f2fs allows only LFS mode for zoned
device. Remove redundant check for direct IO.

Signed-off-by: Eunhee Rho <eunhee83.rho@...sung.com>
---
 fs/f2fs/f2fs.h | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index ecd870e5d6da..ca9354746eec 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -4496,12 +4496,7 @@ static inline bool f2fs_force_buffered_io(struct inode *inode,
 	/* disallow direct IO if any of devices has unaligned blksize */
 	if (f2fs_is_multi_device(sbi) && !sbi->aligned_blksize)
 		return true;
-	/*
-	 * for blkzoned device, fallback direct IO to buffered IO, so
-	 * all IOs can be serialized by log-structured write.
-	 */
-	if (f2fs_sb_has_blkzoned(sbi))
-		return true;
+
 	if (f2fs_lfs_mode(sbi) && (rw == WRITE)) {
 		if (block_unaligned_IO(inode, iocb, iter))
 			return true;
-- 
2.25.1