Messages in this thread Patch in this message | | | From | Ming Lei <> | Subject | [PATCH V12 17/20] block: always define BIO_MAX_PAGES as 256 | Date | Mon, 26 Nov 2018 10:17:17 +0800 |
| |
Now multi-page bvec can cover CONFIG_THP_SWAP, so we don't need to increase BIO_MAX_PAGES for it.
CONFIG_THP_SWAP needs to split one THP into normal pages and adds them all to one bio. With multipage-bvec, it just takes one bvec to hold them all.
Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ming Lei <ming.lei@redhat.com> --- include/linux/bio.h | 8 -------- 1 file changed, 8 deletions(-)
diff --git a/include/linux/bio.h b/include/linux/bio.h index 5505f74aef8b..7be48c55b14a 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -34,15 +34,7 @@ #define BIO_BUG_ON #endif -#ifdef CONFIG_THP_SWAP -#if HPAGE_PMD_NR > 256 -#define BIO_MAX_PAGES HPAGE_PMD_NR -#else #define BIO_MAX_PAGES 256 -#endif -#else -#define BIO_MAX_PAGES 256 -#endif #define bio_prio(bio) (bio)->bi_ioprio #define bio_set_prio(bio, prio) ((bio)->bi_ioprio = prio) -- 2.9.5
| |