linux-kernel - [PATCH] Revert "f2fs: use flush command instead of FUA for zoned device"

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Date: Fri, 14 Jun 2024 00:48:41 +0000
From: Wenjie Cheng <cwjhust@...il.com>
To: jaegeuk@...nel.org,
	chao@...nel.org
Cc: linux-kernel@...r.kernel.org,
	linux-f2fs-devel@...ts.sourceforge.net,
	qwjhust@...il.com,
	Wenjie Cheng <cwjhust@...il.com>
Subject: [PATCH] Revert "f2fs: use flush command instead of FUA for zoned device"

This reverts commit c550e25bca660ed2554cbb48d32b82d0bb98e4b1.

Commit c550e25bca660ed2554cbb48d32b82d0bb98e4b1 ("f2fs: use flush
command instead of FUA for zoned device") used additional flush
command to keep write order.

Since Commit dd291d77cc90eb6a86e9860ba8e6e38eebd57d12 ("block:
Introduce zone write plugging") has enabled the block layer to
handle this order issue, there is no need to use flush command.

Signed-off-by: Wenjie Cheng <cwjhust@...il.com>
---
 fs/f2fs/file.c | 3 +--
 fs/f2fs/node.c | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index eae2e7908072..f08e6208e183 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -372,8 +372,7 @@ static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
 	f2fs_remove_ino_entry(sbi, ino, APPEND_INO);
 	clear_inode_flag(inode, FI_APPEND_WRITE);
 flush_out:
-	if ((!atomic && F2FS_OPTION(sbi).fsync_mode != FSYNC_MODE_NOBARRIER) ||
-	    (atomic && !test_opt(sbi, NOBARRIER) && f2fs_sb_has_blkzoned(sbi)))
+	if (!atomic && F2FS_OPTION(sbi).fsync_mode != FSYNC_MODE_NOBARRIER)
 		ret = f2fs_issue_flush(sbi, inode->i_ino);
 	if (!ret) {
 		f2fs_remove_ino_entry(sbi, ino, UPDATE_INO);
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 144f9f966690..c45d341dcf6e 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1631,7 +1631,7 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
 		goto redirty_out;
 	}
 
-	if (atomic && !test_opt(sbi, NOBARRIER) && !f2fs_sb_has_blkzoned(sbi))
+	if (atomic && !test_opt(sbi, NOBARRIER))
 		fio.op_flags |= REQ_PREFLUSH | REQ_FUA;
 
 	/* should add to global list before clearing PAGECACHE status */
-- 
2.34.1