Date: Sat, 5 Oct 2024 15:08:33 GMT From: Bojan =?utf-8?Q?Novkovi=C4=87?= <bnovkov@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 149e1af6ae49 - main - vm_kern: Use VM_ALLOC_NOFREE when allocating 'zero_region' page Message-ID: <202410051508.495F8XMC004393@gitrepo.freebsd.org>
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The branch main has been updated by bnovkov: URL: https://cgit.FreeBSD.org/src/commit/?id=149e1af6ae4936fac0a907d4c62d745c179b4dc5 commit 149e1af6ae4936fac0a907d4c62d745c179b4dc5 Author: Bojan Novković <bnovkov@FreeBSD.org> AuthorDate: 2024-10-05 15:05:40 +0000 Commit: Bojan Novković <bnovkov@FreeBSD.org> CommitDate: 2024-10-05 15:05:40 +0000 vm_kern: Use VM_ALLOC_NOFREE when allocating 'zero_region' page Allocate the 'zero_region' page using VM_ALLOC_NOFREE since it never gets released. Differential Revision: https://reviews.freebsd.org/D46885 Reviewed by: alc, markj, kib --- sys/vm/vm_kern.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sys/vm/vm_kern.c b/sys/vm/vm_kern.c index fb7c80b767ed..22776e2196b0 100644 --- a/sys/vm/vm_kern.c +++ b/sys/vm/vm_kern.c @@ -762,7 +762,8 @@ kmem_init_zero_region(void) * zeros, while not using much more physical resources. */ addr = kva_alloc(ZERO_REGION_SIZE); - m = vm_page_alloc_noobj(VM_ALLOC_WIRED | VM_ALLOC_ZERO); + m = vm_page_alloc_noobj(VM_ALLOC_WIRED | VM_ALLOC_ZERO | + VM_ALLOC_NOFREE); for (i = 0; i < ZERO_REGION_SIZE; i += PAGE_SIZE) pmap_qenter(addr + i, &m, 1); pmap_protect(kernel_pmap, addr, addr + ZERO_REGION_SIZE, VM_PROT_READ);
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