linux-kernel - [PATCH v1 8/8] block: bio: remove BIO_MAX

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Date:	Thu, 31 Mar 2016 00:17:17 +0800
From:	Ming Lei <ming.lei@...onical.com>
To:	Jens Axboe <axboe@...com>, linux-kernel@...r.kernel.org
Cc:	linux-block@...r.kernel.org, Christoph Hellwig <hch@...radead.org>,
	Al Viro <viro@...iv.linux.org.uk>,
	Anton Altaparmakov <anton@...era.com>, xfs@....sgi.com,
	Dave Chinner <david@...morbit.com>, drbd-dev@...ts.linbit.com,
	Philipp Reisner <philipp.reisner@...bit.com>,
	Lars Ellenberg <lars.ellenberg@...bit.com>,
	Boaz Harrosh <boaz@...xistor.com>,
	Ming Lei <ming.lei@...onical.com>
Subject: [PATCH v1 8/8] block: bio: remove BIO_MAX_SIZE

No one need this macro now, so remove it. The motivation is
for supporting multipage bvecs, in which we only know
what the max count of bvecs is supported in the bio,
instead of max bio size.

Reviewed-by: Christoph Hellwig <hch@....de>
Signed-off-by: Ming Lei <ming.lei@...onical.com>
---
 include/linux/bio.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/include/linux/bio.h b/include/linux/bio.h
index 4f76252..c6d13db 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -42,7 +42,6 @@
 #endif
 
 #define BIO_MAX_PAGES		256
-#define BIO_MAX_SIZE		(BIO_MAX_PAGES << PAGE_CACHE_SHIFT)
 
 /*
  * upper 16 bits of bi_rw define the io priority of this bio
-- 
1.9.1