On Wed, Apr 29, 2020 at 8:33 AM Jeremy Kerr wrote:
>
> Hi Christoph,
>
> > And another one that should go on top of this one to address Al's other
> > compaint:
>
> Yeah, I was pondering that one. The access_ok() is kinda redundant, but
> it does avoid forcing a SPU context save on those errors.
>
Hi Christoph,
> And another one that should go on top of this one to address Al's other
> compaint:
Yeah, I was pondering that one. The access_ok() is kinda redundant, but
it does avoid forcing a SPU context save on those errors.
However, it's not like we really need to optimise for the case of
And another one that should go on top of this one to address Al's other
compaint:
---
>From 1b7ced3de0b3a4addec61f61ac5278c3ff141657 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig
Date: Wed, 22 Apr 2020 09:05:30 +0200
Subject: powerpc/spufs: stop using access_ok
Just use the proper non __-pref
On Wed, Apr 29, 2020 at 08:05:53AM +0200, Christoph Hellwig wrote:
> On Wed, Apr 29, 2020 at 09:36:30AM +0800, Jeremy Kerr wrote:
> > Hi Christoph,
> >
> > > FYI, these little hunks reduce the difference to my version, maybe
> > > you can fold them in?
> >
> > Sure, no problem.
> >
> > How do yo
On Wed, Apr 29, 2020 at 09:36:30AM +0800, Jeremy Kerr wrote:
> Hi Christoph,
>
> > FYI, these little hunks reduce the difference to my version, maybe
> > you can fold them in?
>
> Sure, no problem.
>
> How do you want to coordinate these? I can submit mine through mpe, but
> that may make it tri
Hi Christoph,
> FYI, these little hunks reduce the difference to my version, maybe
> you can fold them in?
Sure, no problem.
How do you want to coordinate these? I can submit mine through mpe, but
that may make it tricky to synchronise with your changes. Or, you can
include this change in your s
FYI, these little hunks reduce the difference to my version, maybe
you can fold them in?
diff --git a/arch/powerpc/platforms/cell/spufs/file.c
b/arch/powerpc/platforms/cell/spufs/file.c
index c62d77ddaf7d3..1861436a6091d 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/pla
On Tue, Apr 28, 2020 at 2:05 PM Jeremy Kerr wrote:
>
> Currently, we may perform a copy_to_user (through
> simple_read_from_buffer()) while holding a context's register_lock,
> while accessing the context save area.
>
> This change uses a temporary buffers for the context save area data,
> which w
On Tue, Apr 28, 2020 at 08:02:07PM +0800, Jeremy Kerr wrote:
> Currently, we may perform a copy_to_user (through
> simple_read_from_buffer()) while holding a context's register_lock,
> while accessing the context save area.
>
> This change uses a temporary buffers for the context save area data,
>
Currently, we may perform a copy_to_user (through
simple_read_from_buffer()) while holding a context's register_lock,
while accessing the context save area.
This change uses a temporary buffers for the context save area data,
which we then pass to simple_read_from_buffer.
Signed-off-by: Jeremy Ke
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