The patch titled
Subject: lib/test_hmm: use vma_lookup() in dmirror_migrate()
has been added to the -mm tree. Its filename is
lib-test_hmm-use-vma_lookup-in-dmirror_migrate.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/lib-test_hmm-use-vma_lookup-in-dmirror_migrate.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/lib-test_hmm-use-vma_lookup-in-dmirror_migrate.patch
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------------------------------------------------------
From: Liam Howlett <liam.howlett@xxxxxxxxxx>
Subject: lib/test_hmm: use vma_lookup() in dmirror_migrate()
Use vma_lookup() to find the VMA at a specific address. As vma_lookup()
will return NULL if the address is not within any VMA, the start address
no longer needs to be validated.
Link: https://lkml.kernel.org/r/20210521174745.2219620-18-Liam.Howlett@xxxxxxxxxx
Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Reviewed-by: Laurent Dufour <ldufour@xxxxxxxxxxxxx>
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
Acked-by: Davidlohr Bueso <dbueso@xxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/test_hmm.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
--- a/lib/test_hmm.c~lib-test_hmm-use-vma_lookup-in-dmirror_migrate
+++ a/lib/test_hmm.c
@@ -686,9 +686,8 @@ static int dmirror_migrate(struct dmirro
mmap_read_lock(mm);
for (addr = start; addr < end; addr = next) {
- vma = find_vma(mm, addr);
- if (!vma || addr < vma->vm_start ||
- !(vma->vm_flags & VM_READ)) {
+ vma = vma_lookup(mm, addr);
+ if (!vma || !(vma->vm_flags & VM_READ)) {
ret = -EINVAL;
goto out;
}
_
Patches currently in -mm which might be from liam.howlett@xxxxxxxxxx are
mm-mmap-introduce-unlock_range-for-code-cleanup.patch
mm-mmap-use-find_vma_intersection-in-do_mmap-for-overlap.patch
mm-add-vma_lookup-update-find_vma_intersection-comments.patch
drm-i915-selftests-use-vma_lookup-in-__igt_mmap.patch
arch-arc-kernel-troubleshoot-use-vma_lookup-instead-of-find_vma.patch
arch-arm64-kvm-use-vma_lookup-instead-of-find_vma_intersection.patch
arch-powerpc-kvm-book3s_hv_uvmem-use-vma_lookup-instead-of-find_vma_intersection.patch
arch-powerpc-kvm-book3s-use-vma_lookup-in-kvmppc_hv_setup_htab_rma.patch
arch-mips-kernel-traps-use-vma_lookup-instead-of-find_vma.patch
arch-m68k-kernel-sys_m68k-use-vma_lookup-in-sys_cacheflush.patch
x86-sgx-use-vma_lookup-in-sgx_encl_find.patch
virt-kvm-use-vma_lookup-instead-of-find_vma_intersection.patch
vfio-use-vma_lookup-instead-of-find_vma_intersection.patch
net-ipv5-tcp-use-vma_lookup-in-tcp_zerocopy_receive.patch
drm-amdgpu-use-vma_lookup-in-amdgpu_ttm_tt_get_user_pages.patch
media-videobuf2-use-vma_lookup-in-get_vaddr_frames.patch
misc-sgi-gru-grufault-use-vma_lookup-in-gru_find_vma.patch
kernel-events-uprobes-use-vma_lookup-in-find_active_uprobe.patch
lib-test_hmm-use-vma_lookup-in-dmirror_migrate.patch
mm-ksm-use-vma_lookup-in-find_mergeable_vma.patch
mm-migrate-use-vma_lookup-in-do_pages_stat_array.patch
mm-mremap-use-vma_lookup-in-vma_to_resize.patch
mm-memoryc-use-vma_lookup-in-__access_remote_vm.patch
mm-mempolicy-use-vma_lookup-in-__access_remote_vm.patch
