[PATCH 07/22] parisc: mm: use mm_is_kernel() for kernel mm checks
Kevin Brodsky <[email protected]>
| Newsgroups | dev.linux.lists.loongarch,org.infradead.lists.linux-riscv,org.infradead.lists.linux-um,org.kernel.vger.linux-arch,org.kernel.vger.linux-efi,org.kernel.vger.linux-kernel,org.kernel.vger.linux-parisc,org.kernel.vger.linux-s390,org.kernel.vger.sparclinux,org.kvack.linux-mm,org.ozlabs.lists.linuxppc-dev |
|---|---|
| Message-ID | <[email protected]> |
The new MMF_KERNEL flag identifies kernel-owned mm's. Checking the flag with mm_is_kernel() is preferred over comparing directly against &init_mm. No functional change, as only init_mm has MMF_KERNEL set for now. Assisted-by: Codex:GPT-5.5 Signed-off-by: Kevin Brodsky <[email protected]> --- arch/parisc/include/asm/mmu_context.h | 2 +- arch/parisc/include/asm/pgalloc.h | 2 +- arch/parisc/include/asm/tlbflush.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/parisc/include/asm/mmu_context.h b/arch/parisc/include/asm/mmu_context.h index c9187fe836a3..e265da67559e 100644 --- a/arch/parisc/include/asm/mmu_context.h +++ b/arch/parisc/include/asm/mmu_context.h @@ -87,7 +87,7 @@ static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next) * already, so we should be OK. */ - BUG_ON(next == &init_mm); /* Should never happen */ + BUG_ON(mm_is_kernel(next)); /* Should never happen */ if (next->context.space_id == 0) next->context.space_id = alloc_sid(); diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h index 3b84ee93edaa..9f09cc4fa5dd 100644 --- a/arch/parisc/include/asm/pgalloc.h +++ b/arch/parisc/include/asm/pgalloc.h @@ -34,7 +34,7 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) struct ptdesc *ptdesc; gfp_t gfp = GFP_PGTABLE_USER; - if (mm == &init_mm) + if (mm_is_kernel(mm)) gfp = GFP_PGTABLE_KERNEL; ptdesc = pagetable_alloc(gfp, PMD_TABLE_ORDER); if (!ptdesc) diff --git a/arch/parisc/include/asm/tlbflush.h b/arch/parisc/include/asm/tlbflush.h index 5ffd7c17f593..a5a6cfff295c 100644 --- a/arch/parisc/include/asm/tlbflush.h +++ b/arch/parisc/include/asm/tlbflush.h @@ -35,7 +35,7 @@ int __flush_tlb_range(unsigned long sid, static inline void flush_tlb_mm(struct mm_struct *mm) { - BUG_ON(mm == &init_mm); /* Should never happen */ + BUG_ON(mm_is_kernel(mm)); /* Should never happen */ #if 1 || defined(CONFIG_SMP) /* Except for very small threads, flushing the whole TLB is -- 2.51.2