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Peter Anvin" , Andy Lutomirski , Peter Zijlstra , Ning Sun , x86@kernel.org, tboot-devel@lists.sourceforge.net, Ard Biesheuvel , Ilias Apalodimas , linux-efi@vger.kernel.org, Vishal Moola , Alistair Popple , "Matthew Wilcox (Oracle)" , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1784037902; l=2128; i=kevin.brodsky@arm.com; s=20260427; h=from:subject:message-id; bh=n3wqVkoRE0XrCf49SeUd/3zMbBniK8cKIbHpgqpyHxU=; b=NiOLSLM4Bju3NE/MJk1JSg+adlOz6kSqOBN5Q1Ojo91j2+7DutkOZ20lco5JkeakYm3HADh4V WLZkvqMg2QAA0cYBkRVmiWNUb4u1J8+jQygFQcLGfYdNrt+hwaqOb94 X-Developer-Key: i=kevin.brodsky@arm.com; a=ed25519; pk=N2QG+eJKrvkNovwhhwJhnJ4+ScVfsGCHldmqLfcMTFs= X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: F22C9120015 X-Stat-Signature: 39zwbhqfdp47tbid6nqcpn4bryp7u3ex X-HE-Tag: 1784037964-17819 X-HE-Meta: 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 b0kVZSPE b3FA8/bvOqqspN+v8U88Iw5rWqhazSxJItsKV4ANKYhwtfTcizLcI5zz+optvAg+jQ5oWVST3DQm5uTjoBw7DXqfEPKE8lFIZK2S7bglrYaKqc0nef2QDcsyrTObDYULUKgwfMBOV9stuzBlnWVCtvh2LQeYKbK3PoRK4EJyY5RJ8HGu/QdzKDs1n0G7BPt83T7uaUkftRHJqfV6xiPqxKYLjzXfrg+poX8+Z0J5kqgvqQpYS/0PnOZlxmP+c4+MSf+RyB+/4B9Lh/fpnkdpUseWKAgY4CzC5RvlEnBpHd3L73ZRWN2pKuiG+JLiAzvXF5jWVEz5736VPyGrho3COMN1D1ANLnMedGoi7FUbGv5iUIEZE3JRJ+xkKeA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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 --- 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