linux-kernel - Re: [PATCH 1/11] Add generic helpers for arch IPI function calls

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Message-ID: <20080422171324.GP12774@kernel.dk>
Date:	Tue, 22 Apr 2008 19:13:24 +0200
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
	npiggin@...e.de
Subject: Re: [PATCH 1/11] Add generic helpers for arch IPI function calls

On Tue, Apr 22 2008, Jens Axboe wrote:
> On Tue, Apr 22 2008, Jens Axboe wrote:
> > +		data = kmalloc(sizeof(*data), GFP_ATOMIC);
> > +		if (!unlikely(!data)) {
> 
> Woops. I'll test everything and send out the full series, at least the
> intention should have been clear.

But wait, falling back to wait cannot always be safe if we are called
with interrupts disabled. I don't see any way around using the global
fallback for that case.

-- 
Jens Axboe

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