[PATCH v3] powerpc, mm: Fix mprotect on book3s 32-bit

[Madhavan Srinivasan]

On Sun, 16 Nov 2025 01:40:46 -0500, Dave Vasilevsky wrote:
> On 32-bit book3s with hash-MMUs, tlb_flush() was a no-op. This was
> unnoticed because all uses until recently were for unmaps, and thus
> handled by __tlb_remove_tlb_entry().
> 
> After commit 4a18419f71cd ("mm/mprotect: use mmu_gather") in kernel 5.19,
> tlb_gather_mmu() started being used for mprotect as well. This caused
> mprotect to simply not work on these machines:
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc, mm: Fix mprotect on book3s 32-bit
      https://git.kernel.org/powerpc/c/78fc63ffa7813e33681839bb33826c24195f0eb7

cheers