Re: [PATCH 02/11] mm: Call ctor/dtor for kernel PTEs
From: Kevin Brodsky <hidden>
Date: 2025-03-24 08:38:59
Also in:
linux-arch, linux-arm-kernel, linux-m68k, linux-mm, linux-riscv, linux-s390, lkml, sparclinux
On 17/03/2025 15:16, Kevin Brodsky wrote:
quoted hunk ↗ jump to hunk
diff --git a/include/asm-generic/pgalloc.h b/include/asm-generic/pgalloc.h index e164ca66f0f6..3c8ec3bfea44 100644 --- a/include/asm-generic/pgalloc.h +++ b/include/asm-generic/pgalloc.h@@ -23,6 +23,11 @@ static inline pte_t *__pte_alloc_one_kernel_noprof(struct mm_struct *mm) if (!ptdesc) return NULL; + if (!pagetable_pte_ctor(mm, ptdesc)) {
As reported by the CI [1], this can cause trouble on x86 because dtor calls are missing in pud_free_pmd_page() and pmd_free_pte_page(). Will fix in the next version. - Kevin [1] https://lore.kernel.org/oe-lkp/202503211612.e11bd73f-lkp@intel.com/ (local)