[PATCH V10 15/19] block: always define BIO_MAX_PAGES as 256

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

Cc: Dave Chinner <dchinner@xxxxxxxxxx>
Cc: Kent Overstreet <kent.overstreet@xxxxxxxxx>
Cc: Mike Snitzer <snitzer@xxxxxxxxxx>
Cc: dm-devel@xxxxxxxxxx
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: linux-fsdevel@xxxxxxxxxxxxxxx
Cc: Shaohua Li <shli@xxxxxxxxxx>
Cc: linux-raid@xxxxxxxxxxxxxxx
Cc: linux-erofs@xxxxxxxxxxxxxxxx
Cc: David Sterba <dsterba@xxxxxxxx>
Cc: linux-btrfs@xxxxxxxxxxxxxxx
Cc: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Cc: linux-xfs@xxxxxxxxxxxxxxx
Cc: Gao Xiang <gaoxiang25@xxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: Theodore Ts'o <tytso@xxxxxxx>
Cc: linux-ext4@xxxxxxxxxxxxxxx
Cc: Coly Li <colyli@xxxxxxx>
Cc: linux-bcache@xxxxxxxxxxxxxxx
Cc: Boaz Harrosh <ooo@xxxxxxxxxxxxxxx>
Cc: Bob Peterson <rpeterso@xxxxxxxxxx>
Cc: cluster-devel@xxxxxxxxxx
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 5040e9a2eb09..277921ad42e7 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




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