2013/2/4, Changman Lee <cm224....@samsung.com>:
> As you know, f2fs_balance_fs conducts gc if f2fs has not enough free
> sections. But, the purpose of background gc is to conduct gc during idle
> time without checking free sections so that f2fs can solve defragment
> condition.
>
> Could you review this?
Yes, right. make sense.
This patch also looks good to me.
Thanks a lot !
>
> --> 8 --
>
> From fbda3262dac81c4f0d7ae8b9b757c820da593120 Mon Sep 17 00:00:00 2001
> From: Changman Lee <cm224....@samsung.com>
> Date: Mon, 4 Feb 2013 10:05:09 +0900
> Subject: [PATCH] f2fs: remove unnecessary gc option check and balance_fs
>
> 1. If f2fs is mounted with background_gc_off option, checking
> BG_GC is not redundant.
> 2. f2fs_balance_fs is checked in f2fs_gc, so this is also redundant.
>
> Signed-off-by: Changman Lee <cm224....@samsung.com>
> Signed-off-by: Namjae Jeon <namjae.j...@samsung.com>
> Signed-off-by: Amit Sahrawat <a.sahra...@samsung.com>
> ---
> fs/f2fs/gc.c | 7 ++-----
> 1 file changed, 2 insertions(+), 5 deletions(-)
>
> diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
> index 8fe43f3..e5c47f6 100644
> --- a/fs/f2fs/gc.c
> +++ b/fs/f2fs/gc.c
> @@ -49,11 +49,6 @@ static int gc_thread_func(void *data)
> continue;
> }
>
> - f2fs_balance_fs(sbi);
> -
> - if (!test_opt(sbi, BG_GC))
> - continue;
> -
> /*
> * [GC triggering condition]
> * 0. GC is not conducted currently.
> @@ -96,6 +91,8 @@ int start_gc_thread(struct f2fs_sb_info *sbi)
> {
> struct f2fs_gc_kthread *gc_th;
>
> + if (!test_opt(sbi, BG_GC))
> + return 0;
> gc_th = kmalloc(sizeof(struct f2fs_gc_kthread), GFP_KERNEL);
> if (!gc_th)
> return -ENOMEM;
> --
> 1.7.10.4
>
>
>
>
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