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| author | Andrey Konovalov <andreyknvl@google.com> | 2021-02-25 17:20:03 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-02-26 09:41:02 -0800 |
| commit | 43a219cbe5a46ec3f6a1874bb2cb2fd4de8322cc (patch) | |
| tree | 5ce24efc53634e210b053ce74f29ad406224b4eb /scripts | |
| parent | e2db1a9aa3814960a56583df39ea71e36d802278 (diff) | |
| download | linux-43a219cbe5a46ec3f6a1874bb2cb2fd4de8322cc.tar.gz linux-43a219cbe5a46ec3f6a1874bb2cb2fd4de8322cc.tar.bz2 linux-43a219cbe5a46ec3f6a1874bb2cb2fd4de8322cc.zip | |
kasan: optimize large kmalloc poisoning
Similarly to kasan_kmalloc(), kasan_kmalloc_large() doesn't need to
unpoison the object as it as already unpoisoned by alloc_pages() (or by
ksize() for krealloc()).
This patch changes kasan_kmalloc_large() to only poison the redzone.
Link: https://lkml.kernel.org/r/33dee5aac0e550ad7f8e26f590c9b02c6129b4a3.1612546384.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions