2013-04-20 (토), 01:27 +0900, Namjae Jeon:
> From: Namjae Jeon <namjae.jeon@xxxxxxxxxxx>
>
> Adding REQ_META for all the metadata requests can help in improving the
> FS performance, if the underlying device supports TAGGING.
> So, when considering the submit_bio path for all the f2fs requests. We can
> add REQ_META for all the META requests.
> As a precursor to this change we considered the commit
> 4265900e0be653f5b78baf2816857ef57cf1332f 'mmc: MMC-4.5 Data Tag Support'
>
> Signed-off-by: Namjae Jeon <namjae.jeon@xxxxxxxxxxx>
> Signed-off-by: Amit Sahrawat <a.sahrawat@xxxxxxxxxxx>
> ---
> fs/f2fs/segment.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
> index 1193a26..a2e5de7 100644
> --- a/fs/f2fs/segment.c
> +++ b/fs/f2fs/segment.c
> @@ -689,6 +689,9 @@ static void do_submit_bio(struct f2fs_sb_info *sbi,
> if (type >= META_FLUSH)
> rw = WRITE_FLUSH_FUA;
>
> + if (type == META)
Should be if (btype == META).
Thanks,
> + rw |= REQ_META;
> +
> if (sbi->bio[btype]) {
> struct bio_private *p = sbi->bio[btype]->bi_private;
> trace_f2fs_do_submit_bio(sbi->sb, btype, sync,
--
Jaegeuk Kim
Samsung
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