Hi Scott,
Would you please take sometime to test this?
Thank you so much.
On 2019/9/24 13:52, Jason Yan wrote:
Hi Scott,
Can you test v7 to see if it works to load a kernel at a non-zero address?
Thanks,
On 2019/9/20 17:45, Jason Yan wrote:
This series implements KASLR for powerpc/fsl_book
Samuel Holland writes:
> Hello,
>
> On 9/17/19 9:57 AM, Aneesh Kumar K.V wrote:
>> With commit: 0034d395f89d ("powerpc/mm/hash64: Map all the kernel regions in
>> the
>> same 0xc range"), we now split the 64TB address range into 4 contexts each of
>> 16TB. That implies we can do only 16TB linear
The spu_fs_context was not set in fc->fs_private, this caused a crash
when accessing ctx->mode in spufs_create_root().
Signed-off-by: Emmanuel Nicolet
---
arch/powerpc/platforms/cell/spufs/inode.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c
b/ar
On Tue, 8 Oct 2019, Leonardo Bras wrote:
> So you say that the performance impact of using my approach is the same
> as using locks? (supposing that lock never waits)
>
> So, there are 'lockless pagetable walks' only for the sake of better
> performance?
I thought that was the major motivation
On Tue, 2019-10-08 at 17:43 +, Christopher Lameter wrote:
> On Tue, 8 Oct 2019, Leonardo Bras wrote:
>
> > > You are creating contention on a single exclusive cacheline. Doesnt this
> > > defeat the whole purpose of the lockless page table walk? Use mmap_sem or
> > > so should cause the same p
On Tue, 8 Oct 2019, Leonardo Bras wrote:
> > You are creating contention on a single exclusive cacheline. Doesnt this
> > defeat the whole purpose of the lockless page table walk? Use mmap_sem or
> > so should cause the same performance regression?
>
> Sorry, I did not understand that question.
>
On Tue, 2019-10-08 at 15:11 +, Christopher Lameter wrote:
>
> On Wed, 2 Oct 2019, Leonardo Bras wrote:
>
> > +
> > +inline unsigned long __begin_lockless_pgtbl_walk(struct mm_struct *mm,
> > +bool disable_irq)
> > +{
> > + unsigned long irq_mask =
On Tue, Oct 8, 2019 at 4:13 PM Emmanuel Nicolet
wrote:
>
> The spu_fs_context was not set in fc->fs_private, this caused a crash
> when accessing ctx->mode in spufs_create_root().
>
> Signed-off-by: Emmanuel Nicolet
Fixes: d2e0981c3b9a ("vfs: Convert spufs to use the new mount API")
Acked-by: Ar
On Wed, 2 Oct 2019, Leonardo Bras wrote:
> +
> +inline unsigned long __begin_lockless_pgtbl_walk(struct mm_struct *mm,
> + bool disable_irq)
> +{
> + unsigned long irq_mask = 0;
> +
> + if (IS_ENABLED(CONFIG_LOCKLESS_PAGE_TABLE_WALK_TRACKING)
On Sat, Oct 05, 2019 at 02:05:29PM +0530, Aneesh Kumar K.V wrote:
> MADV_DONTNEED has caused us multiple issues due to the fact that it can run
> in parallel to page fault. I am not sure whether we have a known/noticeable
> performance gain in allowing that with mmap_sem held in read mode.
Yes we
Add DCC earlycon support for early printks. The patch is useful for SoC
bringup where HW serial console is broken.
Signed-off-by: Michal Simek
---
I have this patch in Xilinx tree for quite a long time and it was develop
as preparation work for SoC bringup where jtag is functional and get
inform
On 10/02/2019 05:49 PM, Mimi Zohar wrote:
On Tue, 2019-10-01 at 12:07 -0400, Nayna wrote:
On 09/30/2019 09:04 PM, Thiago Jung Bauermann wrote:
Hello,
Hi,
diff --git a/arch/powerpc/kernel/ima_arch.c b/arch/powerpc/kernel/ima_arch.c
new file mode 100644
index ..39401b67f19e
---
On 2019/9/25 18:41, Peter Zijlstra wrote:
> On Wed, Sep 25, 2019 at 05:14:20PM +0800, Yunsheng Lin wrote:
>> From the discussion above, It seems making the node_to_cpumask_map()
>> NUMA_NO_NODE aware is the most feasible way to move forwad.
>
> That's still wrong.
Hi, Peter
It seems this has tra
On 10/07/2019 07:30 PM, Kirill A. Shutemov wrote:
> On Mon, Oct 07, 2019 at 03:51:58PM +0200, Ingo Molnar wrote:
>>
>> * Kirill A. Shutemov wrote:
>>
>>> On Mon, Oct 07, 2019 at 03:06:17PM +0200, Ingo Molnar wrote:
* Anshuman Khandual wrote:
> This adds a test module which w
On 10/07/2019 06:36 PM, Ingo Molnar wrote:
>
> * Anshuman Khandual wrote:
>
>> This adds a test module which will validate architecture page table helpers
>> and accessors regarding compliance with generic MM semantics expectations.
>> This will help various architectures in validating changes
> -Original Message-
> From: Shawn Guo
> Sent: 2019年10月3日 17:11
> To: Xiaowei Bao
> Cc: robh...@kernel.org; mark.rutl...@arm.com; Leo Li
> ; M.h. Lian ; Mingkai Hu
> ; Roy Zang ;
> lorenzo.pieral...@arm.com; linux-...@vger.kernel.org;
> devicet...@vger.kernel.org; linux-ker...@vger.kern
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