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Date:	Wed, 15 Apr 2015 12:06:38 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	David.Laight@...LAB.COM
Cc:	viro@...IV.linux.org.uk, netdev@...r.kernel.org
Subject: Re: [PATCH 16/17] get rid of the size argument of sock_sendmsg()

From: David Laight <David.Laight@...LAB.COM>
Date: Wed, 15 Apr 2015 08:37:01 +0000

> From: David Miller
>> Sent: 14 April 2015 18:56
>> > On Tue, Apr 14, 2015 at 04:25:24PM +0000, David Laight wrote:
>> >> From: Al Viro
>> >> > Sent: 11 April 2015 22:18
>> >> > it's equal to iov_iter_count(&msg->msg_iter) in all cases
>> >>
>> >> I don't know whether this is guaranteed for iov[] that come from
>> >> userspace.
>> >>
>> >> In any case iov_iter_count() is non-trivial and you don't
>> >> really want to call it when unnecessary.
>> >
>> > Really?
>> >
>> > static inline size_t iov_iter_count(struct iov_iter *i)
>> > {
>> >         return i->count;
>> > }
>> 
>> This just made my day.
> 
> I hate accessor functions

I hate people who jump to conclusions and don't actually read the code
in question before commenting. :-)

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