diff options
| author | Andrey Konovalov <andreyknvl@google.com> | 2020-12-22 12:02:52 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-22 12:55:08 -0800 |
| commit | c0054c565ae598073d6c27762c7d4f7de49a45d9 (patch) | |
| tree | 26e8cbacc152f42d8d2655eb064c6cebb1dc0dae /mm/kasan/shadow.c | |
| parent | 77f57c983065d0569ee1b4af80f07224b439af57 (diff) | |
kasan: inline kasan_reset_tag for tag-based modes
Using kasan_reset_tag() currently results in a function call. As it's
called quite often from the allocator code, this leads to a noticeable
slowdown. Move it to include/linux/kasan.h and turn it into a static
inline function. Also remove the now unneeded reset_tag() internal KASAN
macro and use kasan_reset_tag() instead.
Link: https://lkml.kernel.org/r/6940383a3a9dfb416134d338d8fac97a9ebb8686.1606162397.git.andreyknvl@google.com
Link: https://linux-review.googlesource.com/id/I4d2061acfe91d480a75df00b07c22d8494ef14b5
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.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: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Vasily Gorbik <gor@linux.ibm.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 'mm/kasan/shadow.c')
| -rw-r--r-- | mm/kasan/shadow.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c index ac6a5f57df33..44a2b748f9d3 100644 --- a/mm/kasan/shadow.c +++ b/mm/kasan/shadow.c @@ -81,7 +81,7 @@ void poison_range(const void *address, size_t size, u8 value) * some of the callers (e.g. kasan_poison_object_data) pass tagged * addresses to this function. */ - address = reset_tag(address); + address = kasan_reset_tag(address); shadow_start = kasan_mem_to_shadow(address); shadow_end = kasan_mem_to_shadow(address + size); @@ -98,7 +98,7 @@ void unpoison_range(const void *address, size_t size) * some of the callers (e.g. kasan_unpoison_object_data) pass tagged * addresses to this function. */ - address = reset_tag(address); + address = kasan_reset_tag(address); poison_range(address, size, tag); |