linux-kernel - Re: 2.6.23-rc1: BUG_ON in kmap_atomic

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Message-ID: <alpine.LFD.0.999.0707241113180.3607@woody.linux-foundation.org>
Date:	Tue, 24 Jul 2007 11:14:21 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Adrian Bunk <bunk@...sta.de>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Alexey Dobriyan <adobriyan@...il.com>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: 2.6.23-rc1: BUG_ON in kmap_atomic_prot()



On Tue, 24 Jul 2007, Adrian Bunk wrote:
> 
> buffered_rmqueue() and prep_new_page() are static functions with only 
> one caller each, and for the normal non-debug case it's a really nice 
> optimization to have them inlined automatically.

I'm not at all sure I agree.

Inlining big functions doesn't actually tend to generally generate any 
better code, so if gcc's logic is "single callsite - always inline", then 
that logic is likely not right.

		Linus
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