* [merged] kasan-dont-round_up-too-much.patch removed from -mm tree
@ 2020-12-23 18:30 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2020-12-23 18:30 UTC (permalink / raw)
To: andreyknvl, aryabinin, Branislav.Rankov, catalin.marinas,
dvyukov, elver, eugenis, glider, gor, kevin.brodsky, mm-commits,
vincenzo.frascino, will.deacon
The patch titled
Subject: kasan: don't round_up too much
has been removed from the -mm tree. Its filename was
kasan-dont-round_up-too-much.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Andrey Konovalov <andreyknvl@google.com>
Subject: kasan: don't round_up too much
For hardware tag-based mode kasan_poison_memory() already rounds up the
size. Do the same for software modes and remove round_up() from the common
code.
Link: https://lkml.kernel.org/r/47b232474f1f89dc072aeda0fa58daa6efade377.1606162397.git.andreyknvl@google.com
Link: https://linux-review.googlesource.com/id/Ib397128fac6eba874008662b4964d65352db4aa4
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Marco Elver <elver@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>
---
mm/kasan/common.c | 8 ++------
mm/kasan/shadow.c | 1 +
2 files changed, 3 insertions(+), 6 deletions(-)
--- a/mm/kasan/common.c~kasan-dont-round_up-too-much
+++ a/mm/kasan/common.c
@@ -213,9 +213,7 @@ void __kasan_unpoison_object_data(struct
void __kasan_poison_object_data(struct kmem_cache *cache, void *object)
{
- poison_range(object,
- round_up(cache->object_size, KASAN_GRANULE_SIZE),
- KASAN_KMALLOC_REDZONE);
+ poison_range(object, cache->object_size, KASAN_KMALLOC_REDZONE);
}
/*
@@ -288,7 +286,6 @@ static bool ____kasan_slab_free(struct k
{
u8 tag;
void *tagged_object;
- unsigned long rounded_up_size;
tag = get_tag(object);
tagged_object = object;
@@ -309,8 +306,7 @@ static bool ____kasan_slab_free(struct k
return true;
}
- rounded_up_size = round_up(cache->object_size, KASAN_GRANULE_SIZE);
- poison_range(object, rounded_up_size, KASAN_KMALLOC_FREE);
+ poison_range(object, cache->object_size, KASAN_KMALLOC_FREE);
if (!kasan_stack_collection_enabled())
return false;
--- a/mm/kasan/shadow.c~kasan-dont-round_up-too-much
+++ a/mm/kasan/shadow.c
@@ -82,6 +82,7 @@ void poison_range(const void *address, s
* addresses to this function.
*/
address = kasan_reset_tag(address);
+ size = round_up(size, KASAN_GRANULE_SIZE);
shadow_start = kasan_mem_to_shadow(address);
shadow_end = kasan_mem_to_shadow(address + size);
_
Patches currently in -mm which might be from andreyknvl@google.com are
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2020-12-23 18:30 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-12-23 18:30 [merged] kasan-dont-round_up-too-much.patch removed from -mm tree akpm
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).