linux-kernel - [PATCH v4 8/8] block: bio: remove BIO_MAX

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Message-Id: <1460634438-26530-9-git-send-email-ming.lei@canonical.com>
Date:	Thu, 14 Apr 2016 19:47:01 +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>,
	Ming Lei <ming.lei@...onical.com>,
	Kent Overstreet <kent.overstreet@...il.com>,
	Jan Kara <jack@...e.cz>, Keith Busch <keith.busch@...el.com>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Tejun Heo <tj@...nel.org>, Mike Snitzer <snitzer@...hat.com>
Subject: [PATCH v4 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 d9beea7..c8553fe 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -41,7 +41,6 @@
 #endif
 
 #define BIO_MAX_PAGES		256
-#define BIO_MAX_SIZE		(BIO_MAX_PAGES << PAGE_SHIFT)
 
 /*
  * upper 16 bits of bi_rw define the io priority of this bio
-- 
1.9.1