[PATCH V7 23/24] block: always define BIO_MAX_PAGES as 256

From: Ming Lei
Date: Wed Jun 27 2018 - 08:50:43 EST


Now multipage bvec can cover CONFIG_THP_SWAP, so we don't need to
increase BIO_MAX_PAGES for it.

Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx>
---
include/linux/bio.h | 8 --------
1 file changed, 8 deletions(-)

diff --git a/include/linux/bio.h b/include/linux/bio.h
index b44f9a40bb8b..3412947e42f2 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -38,15 +38,7 @@
#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