Files
kernel_arpi/lib
Andrey Konovalov acccc2aa2e FROMLIST: kasan: improve vmalloc tests
[Combines a FROMGIT patch and a FROMGIT fix with another FROMLIST fix.]

Update the existing vmalloc_oob() test to account for the specifics of the
tag-based modes.  Also add a few new checks and comments.

Add new vmalloc-related tests:

- vmalloc_helpers_tags() to check that exported vmalloc helpers can
  handle tagged pointers.
- vmap_tags() to check that SW_TAGS mode properly tags vmap() mappings.
- vm_map_ram_tags() to check that SW_TAGS mode properly tags
  vm_map_ram() mappings.
- vmalloc_percpu() to check that SW_TAGS mode tags regions allocated
  for __alloc_percpu(). The tagging of per-cpu mappings is best-effort;
  proper tagging is tracked in [1].

[1] https://bugzilla.kernel.org/show_bug.cgi?id=215019

Link: https://lkml.kernel.org/r/bbdc1c0501c5275e7f26fdb8e2a7b14a40a9f36b.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 96304a5b9bff6287fe7da9c20f253b3023553782
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
(cherry picked from commit 790a96c47a502de4e415788d5033e9f6938b28e8
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Link: https://lore.kernel.org/linux-mm/865c91ba49b90623ab50c7526b79ccb955f544f0.1644950160.git.andreyknvl@google.com/
Bug: 217222520
Change-Id: Id3eacce3bb8e7cecc2281dec87e5cd36792c2427
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
2022-02-15 19:44:52 +01:00
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