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SubjectRe: [f2fs-dev] [PATCH] f2fs: zoned device does not support ATGC
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On 2022/8/12 6:54, Jaegeuk Kim wrote:
> ATGC is using SSR which violates zoned device. >
> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
> ---
> fs/f2fs/super.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
> index 2451623c05a7..212ec2b4926b 100644
> --- a/fs/f2fs/super.c
> +++ b/fs/f2fs/super.c
> @@ -1298,6 +1298,10 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount)
> F2FS_OPTION(sbi).discard_unit =
> DISCARD_UNIT_SECTION;
> }
> + if (test_opt(sbi, ATGC)) {
> + f2fs_err(sbi, "Zoned block device doesn't support ATGC.");
> + return -EINVAL;
> + }

ATGC is incompatible with LFS mode, we can check f2fs_lfs_mode() and ATGC
mountoption instead, as zoned device depends on LFS mode.

Thanks,

> }
>
> #ifdef CONFIG_F2FS_FS_COMPRESSION

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