[PATCH v3 03/10] uaccess: Add masked_user_{read/write}_access_begin

[Christophe Leroy]

Le 22/10/2025 à 19:05, Thomas Gleixner a écrit :
> On Fri, Oct 17 2025 at 12:20, Christophe Leroy wrote:
>> Allthough masked_user_access_begin() is to only be used when reading
>> data from user at the moment, introduce masked_user_read_access_begin()
>> and masked_user_write_access_begin() in order to match
>> user_read_access_begin() and user_write_access_begin().
>>
>> That means masked_user_read_access_begin() is used when user memory is
>> exclusively read during the window, masked_user_write_access_begin()
>> is used when user memory is exclusively writen during the window,
>> masked_user_access_begin() remains and is used when both reads and
>> writes are performed during the open window. Each of them is expected
>> to be terminated by the matching user_read_access_end(),
>> user_write_access_end() and user_access_end().
>>
>> Have them default to masked_user_access_begin() when they are
>> not defined.
>>
>> Signed-off-by: Christophe Leroy <christophe.leroy at csgroup.eu>
> 
> Can we please coordinate on that vs. the scoped_access() work as this
> nicely collides all over the place?

Sure, I will rebase on top of your series.

Once it is rebased, could you take the non powerpc patches in your tree ?

Thanks
Christophe