arm64/mm/hotplug: Drop some redundant WARN_ON()

[PATCH 0/2] arm64/mm/hotplug: Drop some redundant WARN_ON()

Posted by Anshuman Khandual 9 months, 4 weeks ago

This series drops some redundant WARN_ON() tests which are not required any
more while unmapping and freeing up kernel page table pages during a memory
hot remove operation.

This series applies on v6.14-rc3

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org

Anshuman Khandual (2):
  arm64/mm/hotplug: Drop redundant [pgd|p4d]_present()
  arm64/mm/hotplug: Replace pxx_present() with pxx_valid()

 arch/arm64/mm/mmu.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

-- 
2.30.2

Re: [PATCH 0/2] arm64/mm/hotplug: Drop some redundant WARN_ON()

Posted by Anshuman Khandual 9 months ago

On 2/21/25 15:14, Anshuman Khandual wrote:
> This series drops some redundant WARN_ON() tests which are not required any
> more while unmapping and freeing up kernel page table pages during a memory
> hot remove operation.
> 
> This series applies on v6.14-rc3
> 
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will@kernel.org>
> Cc: Ard Biesheuvel <ardb@kernel.org>
> Cc: Ryan Roberts <ryan.roberts@arm.com>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-kernel@vger.kernel.org
> 
> Anshuman Khandual (2):
>   arm64/mm/hotplug: Drop redundant [pgd|p4d]_present()
>   arm64/mm/hotplug: Replace pxx_present() with pxx_valid()
> 
>  arch/arm64/mm/mmu.c | 14 +++++---------
>  1 file changed, 5 insertions(+), 9 deletions(-)
> 

Gentle ping, any updates on this series ? This simplifies WARN_ON()
checks during memory hotplug operation, after subsequent changes to
page table helpers such as pxd_present() etc.