linux-kernel - Re: [f2fs-dev] [PATCH 5/5] f2fs: allow to mount if cap is 100

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Date: Mon, 26 Feb 2024 11:34:27 -0800
From: Daeho Jeong <daeho43@...il.com>
To: Jaegeuk Kim <jaegeuk@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net
Subject: Re: [f2fs-dev] [PATCH 5/5] f2fs: allow to mount if cap is 100

On Fri, Feb 23, 2024 at 12:56 PM Jaegeuk Kim <jaegeuk@...nel.org> wrote:
>
> Don't block mounting the partition, if cap is 100%.
>
> Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
> ---
>  fs/f2fs/segment.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
> index 6d586ae8b55f..f11361152d2a 100644
> --- a/fs/f2fs/segment.c
> +++ b/fs/f2fs/segment.c
> @@ -904,6 +904,9 @@ int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable)
>  {
>         int ovp_hole_segs =
>                 (overprovision_segments(sbi) - reserved_segments(sbi));
> +
> +       if (F2FS_OPTION(sbi).unusable_cap_perc == 100)
> +               return 0;

With this, f2fs will not execute GC. What is this 100
unusable_cap_perc used for?

>         if (unusable > F2FS_OPTION(sbi).unusable_cap)
>                 return -EAGAIN;
>         if (is_sbi_flag_set(sbi, SBI_CP_DISABLED_QUICK) &&
> --
> 2.44.0.rc0.258.g7320e95886-goog
>
>
>
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