The patch titled
Subject: misc/sgi-gru/grufault: use vma_lookup() in gru_find_vma()
has been added to the -mm tree. Its filename is
misc-sgi-gru-grufault-use-vma_lookup-in-gru_find_vma.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/misc-sgi-gru-grufault-use-vma_lookup-in-gru_find_vma.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/misc-sgi-gru-grufault-use-vma_lookup-in-gru_find_vma.patch
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------------------------------------------------------
From: Liam Howlett <liam.howlett@xxxxxxxxxx>
Subject: misc/sgi-gru/grufault: use vma_lookup() in gru_find_vma()
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/20210521174745.2219620-16-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>
---
drivers/misc/sgi-gru/grufault.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/misc/sgi-gru/grufault.c~misc-sgi-gru-grufault-use-vma_lookup-in-gru_find_vma
+++ a/drivers/misc/sgi-gru/grufault.c
@@ -49,8 +49,8 @@ struct vm_area_struct *gru_find_vma(unsi
{
struct vm_area_struct *vma;
- vma = find_vma(current->mm, vaddr);
- if (vma && vma->vm_start <= vaddr && vma->vm_ops == &gru_vm_ops)
+ vma = vma_lookup(current->mm, vaddr);
+ if (vma && vma->vm_ops == &gru_vm_ops)
return vma;
return NULL;
}
_
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
