[PATCH V6 29/30] block: always define BIO_MAX_PAGES as 256

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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 69ef05dc7019..58838dc12d69 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




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