This will allow sparc64, or any future architecture with memory tagging
to override its tags for get_user_pages and get_user_pages_fast.
Signed-off-by: Christoph Hellwig
Reviewed-by: Khalid Aziz
Reviewed-by: Jason Gunthorpe
---
mm/gup.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
On Fri, Jun 21, 2019 at 10:39:11AM -0300, Jason Gunthorpe wrote:
> Hmm, this function, and the other, goes on to do:
>
> if (unlikely(!access_ok((void __user *)start, len)))
> return 0;
>
> and I thought that access_ok takes in the tagged pointer?
>
> How about re-order i
On Fri, Jun 21, 2019 at 10:39:11AM -0300, Jason Gunthorpe wrote:
>
> Hmm, this function, and the other, goes on to do:
>
> if (unlikely(!access_ok((void __user *)start, len)))
> return 0;
>
> and I thought that access_ok takes in the tagged pointer?
>
> How about re-orde
On Fri, Jun 21, 2019 at 09:35:11AM -0600, Khalid Aziz wrote:
> On 6/21/19 7:39 AM, Jason Gunthorpe wrote:
> > On Tue, Jun 11, 2019 at 04:40:47PM +0200, Christoph Hellwig wrote:
> >> This will allow sparc64 to override its ADI tags for
> >> get_user_pages and get_user_pages_fast.
> >>
> >> Signed-of
On 6/21/19 7:39 AM, Jason Gunthorpe wrote:
> On Tue, Jun 11, 2019 at 04:40:47PM +0200, Christoph Hellwig wrote:
>> This will allow sparc64 to override its ADI tags for
>> get_user_pages and get_user_pages_fast.
>>
>> Signed-off-by: Christoph Hellwig
>> mm/gup.c | 4 ++--
>> 1 file changed, 2 inse
On Tue, Jun 11, 2019 at 04:40:47PM +0200, Christoph Hellwig wrote:
> This will allow sparc64 to override its ADI tags for
> get_user_pages and get_user_pages_fast.
>
> Signed-off-by: Christoph Hellwig
> mm/gup.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/mm/gup
On Tue, Jun 11, 2019 at 04:40:47PM +0200, Christoph Hellwig wrote:
> This will allow sparc64 to override its ADI tags for
> get_user_pages and get_user_pages_fast.
>
> Signed-off-by: Christoph Hellwig
> ---
> mm/gup.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
Reviewed-by: Jaso
On 6/11/19 8:40 AM, Christoph Hellwig wrote:
> This will allow sparc64 to override its ADI tags for
> get_user_pages and get_user_pages_fast.
>
> Signed-off-by: Christoph Hellwig
> ---
Commit message is sparc64 specific but the goal here is to allow any
architecture with memory tagging to use th
This will allow sparc64 to override its ADI tags for
get_user_pages and get_user_pages_fast.
Signed-off-by: Christoph Hellwig
---
mm/gup.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/gup.c b/mm/gup.c
index ddde097cf9e4..6bb521db67ec 100644
--- a/mm/gup.c
+++ b/mm/g
