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authorJérôme Glisse <jglisse@redhat.com>2019-05-13 17:20:53 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-14 09:47:49 -0700
commit7269f999934b289da7972e975b781417b07ef836 (patch)
tree5f6ebac6adf78670145c7c214b7f19135ad5dd1d /mm/mprotect.c
parent6f4f13e8d9e27cefd2cd88dd4fd80aa6d68b9131 (diff)
downloadlwn-7269f999934b289da7972e975b781417b07ef836.tar.gz
lwn-7269f999934b289da7972e975b781417b07ef836.zip
mm/mmu_notifier: use correct mmu_notifier events for each invalidation
This updates each existing invalidation to use the correct mmu notifier event that represent what is happening to the CPU page table. See the patch which introduced the events to see the rational behind this. Link: http://lkml.kernel.org/r/20190326164747.24405-7-jglisse@redhat.com Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Reviewed-by: Ralph Campbell <rcampbell@nvidia.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Cc: Christian König <christian.koenig@amd.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Jan Kara <jack@suse.cz> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Peter Xu <peterx@redhat.com> Cc: Felix Kuehling <Felix.Kuehling@amd.com> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: Ross Zwisler <zwisler@kernel.org> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krcmar <rkrcmar@redhat.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Christian Koenig <christian.koenig@amd.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mprotect.c')
-rw-r--r--mm/mprotect.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/mm/mprotect.c b/mm/mprotect.c
index b10984052ae9..65242f1e4457 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -185,8 +185,9 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
/* invoke the mmu notifier if the pmd is populated */
if (!range.start) {
- mmu_notifier_range_init(&range, MMU_NOTIFY_UNMAP, 0,
- vma, vma->vm_mm, addr, end);
+ mmu_notifier_range_init(&range,
+ MMU_NOTIFY_PROTECTION_VMA, 0,
+ vma, vma->vm_mm, addr, end);
mmu_notifier_invalidate_range_start(&range);
}