[0/4] Kasan improvements and fixes

Message

Alexandre Ghiti Feb. 8, 2021, 7:30 p.m. UTC

This small series contains some improvements for the riscv KASAN code:

- it brings a better readability of the code (patch 1/2)
- it fixes oversight regarding page table population which I uncovered
  while working on my sv48 patchset (patch 3)
- it helps to have better performance by using hugepages when possible
  (patch 4)

Alexandre Ghiti (4):
  riscv: Improve kasan definitions
  riscv: Use KASAN_SHADOW_INIT define for kasan memory initialization
  riscv: Improve kasan population function
  riscv: Improve kasan population by using hugepages when possible

 arch/riscv/include/asm/kasan.h |  22 +++++-
 arch/riscv/mm/kasan_init.c     | 119 ++++++++++++++++++++++++---------
 2 files changed, 108 insertions(+), 33 deletions(-)

Comments

Alexandre Ghiti Feb. 21, 2021, 1:42 p.m. UTC | #1

Hi,

Le 2/8/21 à 2:30 PM, Alexandre Ghiti a écrit :
> This small series contains some improvements for the riscv KASAN code:
> 
> - it brings a better readability of the code (patch 1/2)
> - it fixes oversight regarding page table population which I uncovered
>    while working on my sv48 patchset (patch 3)
> - it helps to have better performance by using hugepages when possible
>    (patch 4)
> 
> Alexandre Ghiti (4):
>    riscv: Improve kasan definitions
>    riscv: Use KASAN_SHADOW_INIT define for kasan memory initialization
>    riscv: Improve kasan population function
>    riscv: Improve kasan population by using hugepages when possible
> 
>   arch/riscv/include/asm/kasan.h |  22 +++++-
>   arch/riscv/mm/kasan_init.c     | 119 ++++++++++++++++++++++++---------
>   2 files changed, 108 insertions(+), 33 deletions(-)
> 

I'm cc-ing linux-arch and linux-mm to get more chance to have reviewers 
on this series.

Thanks,

Alex

Palmer Dabbelt Feb. 23, 2021, 2:58 a.m. UTC | #2

On Sun, 21 Feb 2021 05:42:08 PST (-0800), [e-mail] wrote:
> Hi,
>
> Le 2/8/21 à 2:30 PM, Alexandre Ghiti a écrit :
>> This small series contains some improvements for the riscv KASAN code:
>>
>> - it brings a better readability of the code (patch 1/2)
>> - it fixes oversight regarding page table population which I uncovered
>>    while working on my sv48 patchset (patch 3)
>> - it helps to have better performance by using hugepages when possible
>>    (patch 4)
>>
>> Alexandre Ghiti (4):
>>    riscv: Improve kasan definitions
>>    riscv: Use KASAN_SHADOW_INIT define for kasan memory initialization
>>    riscv: Improve kasan population function
>>    riscv: Improve kasan population by using hugepages when possible
>>
>>   arch/riscv/include/asm/kasan.h |  22 +++++-
>>   arch/riscv/mm/kasan_init.c     | 119 ++++++++++++++++++++++++---------
>>   2 files changed, 108 insertions(+), 33 deletions(-)
>>
>
> I'm cc-ing linux-arch and linux-mm to get more chance to have reviewers
> on this series.

Sorry about that, I must have missed these.  For some reason I remember having
read the big one, so I'm not sure what happened.  They're on for-next.

Thanks!