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SubjectRe: [PATCH] f2fs: make gc_urgent and gc_segment_mode sysfs node readable
Plz, sorry, ignore this one.

On Fri, Mar 18, 2022 at 12:10 PM Daeho Jeong <daeho43@gmail.com> wrote:
>
> From: Daeho Jeong <daehojeong@google.com>
>
> Changed a way of showing values of them to use strings.
>
> Signed-off-by: Daeho Jeong <daehojeong@google.com>
> ---
> fs/f2fs/sysfs.c | 17 ++++++++++++++++-
> 1 file changed, 16 insertions(+), 1 deletion(-)
>
> diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
> index fe29bcb70f46..f2613cc83888 100644
> --- a/fs/f2fs/sysfs.c
> +++ b/fs/f2fs/sysfs.c
> @@ -41,6 +41,16 @@ enum {
> ATGC_INFO, /* struct atgc_management */
> };
>
> +const char *gc_mode_names[MAX_GC_MODE] = {
> + "GC_NORMAL",
> + "GC_IDLE_CB",
> + "GC_IDLE_GREEDY",
> + "GC_IDLE_AT",
> + "GC_URGENT_HIGH",
> + "GC_URGENT_LOW",
> + "GC_URGENT_MID"
> +};
> +
> struct f2fs_attr {
> struct attribute attr;
> ssize_t (*show)(struct f2fs_attr *, struct f2fs_sb_info *, char *);
> @@ -316,8 +326,13 @@ static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
> return sysfs_emit(buf, "%u\n", sbi->compr_new_inode);
> #endif
>
> + if (!strcmp(a->attr.name, "gc_urgent"))
> + return sysfs_emit(buf, "%s\n",
> + gc_mode_names[sbi->gc_mode]);
> +
> if (!strcmp(a->attr.name, "gc_segment_mode"))
> - return sysfs_emit(buf, "%u\n", sbi->gc_segment_mode);
> + return sysfs_emit(buf, "%s\n",
> + gc_mode_names[sbi->gc_segment_mode]);
>
> if (!strcmp(a->attr.name, "gc_reclaimed_segments")) {
> return sysfs_emit(buf, "%u\n",
> --
> 2.35.1.894.gb6a874cedc-goog
>

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