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    Subject[PATCH] f2fs: make gc_urgent and gc_segment_mode sysfs node readable
    Date
    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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