linux-kernel - [PATCH 6/8] block: bio: remove BIO_MAX

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Message-Id: <1458627149-12988-7-git-send-email-ming.lei@canonical.com>
Date:	Tue, 22 Mar 2016 14:12:27 +0800
From:	Ming Lei <ming.lei@...onical.com>
To:	Jens Axboe <axboe@...nel.dk>, 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 6/8] block: bio: remove BIO_MAX_SECTORS

No one need this macro, 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 size or max sectors.

Signed-off-by: Ming Lei <ming.lei@...onical.com>
---
 include/linux/bvec_iter.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/include/linux/bvec_iter.h b/include/linux/bvec_iter.h
index 5798c21..a979690 100644
--- a/include/linux/bvec_iter.h
+++ b/include/linux/bvec_iter.h
@@ -24,7 +24,6 @@
 
 #define BIO_MAX_PAGES		256
 #define BIO_MAX_SIZE		(BIO_MAX_PAGES << PAGE_CACHE_SHIFT)
-#define BIO_MAX_SECTORS		(BIO_MAX_SIZE >> 9)
 
 /*
  * various member access, note that bio_data should of course not be used
-- 
1.9.1