On 2018/4/9 19:27, Yunlei He wrote:
> This patch stop async thread and umount process to issue discard
> if something wrong with f2fs, which is similar to fstrim.
> 
> v1->v2: add fs error check in not only discard thread but also umount process
> v2->v3: remove redundant error message
> 
> Signed-off-by: Yunlei He <heyun...@huawei.com>
> ---
>  fs/f2fs/segment.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
> index 5854cc4..e31d506 100644
> --- a/fs/f2fs/segment.c
> +++ b/fs/f2fs/segment.c
> @@ -1202,6 +1202,9 @@ static int __issue_discard_cmd(struct f2fs_sb_info *sbi,
>       int i, iter = 0, issued = 0;
>       bool io_interrupted = false;
>  
> +     if (is_sbi_flag_set(sbi, SBI_NEED_FSCK))
> +             return issued;

Hmm.. except here, I mean we'd better add it into issue_discard_thread too?

Thanks,

> +
>       for (i = MAX_PLIST_NUM - 1; i >= 0; i--) {
>               if (i + 1 < dpolicy->granularity)
>                       break;
> 


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