linux-kernel - [PATCH] Revert "f2fs: remove unreachable lazytime mount option parsing"

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Message-ID: <20241112010820.2788822-1-jaegeuk@kernel.org>
Date: Tue, 12 Nov 2024 01:08:20 +0000
From: Jaegeuk Kim <jaegeuk@...nel.org>
To: linux-kernel@...r.kernel.org,
	linux-f2fs-devel@...ts.sourceforge.net
Cc: Jaegeuk Kim <jaegeuk@...nel.org>,
	stable@...r.kernel.org,
	Daniel Rosenberg <drosen@...gle.com>
Subject: [PATCH] Revert "f2fs: remove unreachable lazytime mount option parsing"

This reverts commit 54f43a10fa257ad4af02a1d157fefef6ebcfa7dc.

The above commit broke the lazytime mount, given

mount("/dev/vdb", "/mnt/test", "f2fs", 0, "lazytime");

CC: stable@...r.kernel.org # 6.11+
Signed-off-by: Daniel Rosenberg <drosen@...gle.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
---
 fs/f2fs/super.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 49519439b770..35c4394e4fc6 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -150,6 +150,8 @@ enum {
 	Opt_mode,
 	Opt_fault_injection,
 	Opt_fault_type,
+	Opt_lazytime,
+	Opt_nolazytime,
 	Opt_quota,
 	Opt_noquota,
 	Opt_usrquota,
@@ -226,6 +228,8 @@ static match_table_t f2fs_tokens = {
 	{Opt_mode, "mode=%s"},
 	{Opt_fault_injection, "fault_injection=%u"},
 	{Opt_fault_type, "fault_type=%u"},
+	{Opt_lazytime, "lazytime"},
+	{Opt_nolazytime, "nolazytime"},
 	{Opt_quota, "quota"},
 	{Opt_noquota, "noquota"},
 	{Opt_usrquota, "usrquota"},
@@ -922,6 +926,12 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount)
 			f2fs_info(sbi, "fault_type options not supported");
 			break;
 #endif
+		case Opt_lazytime:
+			sb->s_flags |= SB_LAZYTIME;
+			break;
+		case Opt_nolazytime:
+			sb->s_flags &= ~SB_LAZYTIME;
+			break;
 #ifdef CONFIG_QUOTA
 		case Opt_quota:
 		case Opt_usrquota:
-- 
2.47.0.277.g8800431eea-goog