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From: "Pekka Enberg" <penberg@cs.helsinki.fi>
To: "Robert P. J. Day" <rpjday@mindspring.com>
Cc: "Linux kernel mailing list" <linux-kernel@vger.kernel.org>
Subject: Re: can someone explain "inline" once and for all?
Date: Fri, 19 Jan 2007 15:01:44 +0200	[thread overview]
Message-ID: <84144f020701190501x5d1efb49u87dc9537bfe1e791@mail.gmail.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0701190645400.24224@CPE00045a9c397f-CM001225dbafb6>

On 1/19/07, Robert P. J. Day <rpjday@mindspring.com> wrote:
> is there a simple explanation for how to *properly* define inline
> routines in the kernel?  and maybe this can be added to the
> CodingStyle guide (he mused, wistfully).

AFAIK __always_inline is the only reliable way to force inlining where
it matters for correctness (for example, when playing tricks with
__builtin_return_address like we do in the slab).

Anything else is just a hint to the compiler that might be ignored if
the optimizer thinks it knows better.

  reply	other threads:[~2007-01-19 13:01 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-19 11:56 Robert P. J. Day
2007-01-19 13:01 ` Pekka Enberg [this message]
2007-01-19 13:19   ` Robert P. J. Day
2007-01-19 14:13   ` Adrian Bunk
2007-01-19 14:44     ` Robert P. J. Day
2007-01-19 14:53     ` Robert P. J. Day
2007-01-19 13:37 ` Andreas Schwab
2007-01-19 13:48   ` Robert P. J. Day
2007-01-19 13:58     ` Andreas Schwab
2007-01-19 14:00       ` Robert P. J. Day
2007-01-19 17:15 ` Alexandre Oliva
2007-01-19 17:36   ` Adrian Bunk

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