The patch below does not apply to the 6.1-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 967eaad1fed5f6335ea97a47d45214744dc57925 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2023080337-improper-headed-6f72@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..

Possible dependencies:

967eaad1fed5 ("f2fs: fix to set flush_merge opt and show noflush_merge")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 967eaad1fed5f6335ea97a47d45214744dc57925 Mon Sep 17 00:00:00 2001 From: Yangtao Li frank.li@vivo.com Date: Thu, 10 Nov 2022 17:15:01 +0800 Subject: [PATCH] f2fs: fix to set flush_merge opt and show noflush_merge

Some minor modifications to flush_merge and related parameters:

1.The FLUSH_MERGE opt is set by default only in non-ro mode. 2.When ro and merge are set at the same time, an error is reported. 3.Display noflush_merge mount opt.

Suggested-by: Chao Yu chao@kernel.org Signed-off-by: Yangtao Li frank.li@vivo.com Signed-off-by: Jaegeuk Kim jaegeuk@kernel.org

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 8f4fc3ad6765..75027ff85cd9 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -1353,6 +1353,12 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount) return -EINVAL; }

+ if ((f2fs_sb_has_readonly(sbi) || f2fs_readonly(sbi->sb)) && + test_opt(sbi, FLUSH_MERGE)) { + f2fs_err(sbi, "FLUSH_MERGE not compatible with readonly mode"); + return -EINVAL; + } + if (f2fs_sb_has_readonly(sbi) && !f2fs_readonly(sbi->sb)) { f2fs_err(sbi, "Allow to mount readonly mode only"); return -EROFS; @@ -1941,8 +1947,10 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root) seq_puts(seq, ",inline_dentry"); else seq_puts(seq, ",noinline_dentry"); - if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE)) + if (test_opt(sbi, FLUSH_MERGE)) seq_puts(seq, ",flush_merge"); + else + seq_puts(seq, ",noflush_merge"); if (test_opt(sbi, NOBARRIER)) seq_puts(seq, ",nobarrier"); else @@ -2073,7 +2081,8 @@ static void default_options(struct f2fs_sb_info *sbi) set_opt(sbi, MERGE_CHECKPOINT); F2FS_OPTION(sbi).unusable_cap = 0; sbi->sb->s_flags |= SB_LAZYTIME; - set_opt(sbi, FLUSH_MERGE); + if (!f2fs_sb_has_readonly(sbi) && !f2fs_readonly(sbi->sb)) + set_opt(sbi, FLUSH_MERGE); if (f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi)) set_opt(sbi, DISCARD); if (f2fs_sb_has_blkzoned(sbi)) {