From: Richard Henderson <richard.henderson@linaro.org>
To: "Alex Bennée" <alex.bennee@linaro.org>
Cc: qemu-devel@nongnu.org, laurent@vivier.eu,
david@gibson.dropbear.id.au, qemu-ppc@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] linux-user/ppc: Implement swapcontext syscall
Date: Thu, 19 Jul 2018 08:24:26 -0700 [thread overview]
Message-ID: <221519ed-ca43-7c03-bb20-57c8e744e1d2@linaro.org> (raw)
In-Reply-To: <87wotr4bpv.fsf@linaro.org>
On 07/19/2018 06:05 AM, Alex Bennée wrote:
> I'm confused by the lock_user_struct/unlock_user_struct which AFAICT are
> basically access checks. Is there an implied locking I'm missing?
I have no idea why those have that name. There's no lock,
just a validation of the underlying pages and a transform to
the corresponding host address.
r~
next prev parent reply other threads:[~2018-07-19 15:24 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-18 20:06 [Qemu-devel] [PATCH] linux-user/ppc: Implement swapcontext syscall Richard Henderson
2018-07-18 22:56 ` Philippe Mathieu-Daudé
2018-07-19 11:13 ` Richard Henderson
2018-07-20 1:40 ` Philippe Mathieu-Daudé
2018-07-19 13:05 ` Alex Bennée
2018-07-19 15:24 ` Richard Henderson [this message]
2018-07-19 15:48 ` Peter Maydell
2018-07-22 19:07 ` Laurent Vivier
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