Re: [RFC 09/10] mm/khugepage.c: Warn if trying to scan devmap pmd

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



David Hildenbrand <david@xxxxxxxxxx> writes:

> On 11.04.24 02:57, Alistair Popple wrote:
>> The only user of devmap PTEs is FS DAX, and khugepaged should not be
>> scanning these VMAs. This is checked by calling
>> hugepage_vma_check. Therefore khugepaged should never encounter a
>> devmap PTE. Warn if this occurs.
>> Signed-off-by: Alistair Popple <apopple@xxxxxxxxxx>
>> ---
>> Note this is a transitory patch to test the above assumption both at
>> runtime and during review. I will likely remove it as the whole thing
>> gets deleted when pXX_devmap is removed.
>
> Yes, doesn't make sense for this patch to exist if it would go
> upstream along with the next patch that removes that completely.

Yep. I'd had it to sanity check my own understanding and figured I'd
leave it in the RFC series to see if it provoked a reaction from anyone.

Will drop it in the next version.




[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux