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Wed, 11 Nov 2020 08:10:26 -0800 (PST) Date: Wed, 11 Nov 2020 17:10:20 +0100 From: Marco Elver To: Andrey Konovalov Cc: Dmitry Vyukov , Alexander Potapenko , Catalin Marinas , Will Deacon , Vincenzo Frascino , Evgenii Stepanov , Andrey Ryabinin , Branislav Rankov , Kevin Brodsky , Andrew Morton , kasan-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 03/20] kasan: introduce set_alloc_info Message-ID: <20201111161020.GE517454@elver.google.com> References: <5302e6d48429465259bd0868a7dc357290a2e8a5.1605046662.git.andreyknvl@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5302e6d48429465259bd0868a7dc357290a2e8a5.1605046662.git.andreyknvl@google.com> User-Agent: Mutt/1.14.6 (2020-07-11) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Nov 10, 2020 at 11:20PM +0100, Andrey Konovalov wrote: > Add set_alloc_info() helper and move kasan_set_track() into it. This will > simplify the code for one of the upcoming changes. > > No functional changes. > > Signed-off-by: Andrey Konovalov > Reviewed-by: Dmitry Vyukov > Link: https://linux-review.googlesource.com/id/I0316193cbb4ecc9b87b7c2eee0dd79f8ec908c1a > --- Reviewed-by: Marco Elver > mm/kasan/common.c | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/mm/kasan/common.c b/mm/kasan/common.c > index 8fd04415d8f4..a880e5a547ed 100644 > --- a/mm/kasan/common.c > +++ b/mm/kasan/common.c > @@ -318,6 +318,11 @@ bool kasan_slab_free(struct kmem_cache *cache, void *object, unsigned long ip) > return __kasan_slab_free(cache, object, ip, true); > } > > +static void set_alloc_info(struct kmem_cache *cache, void *object, gfp_t flags) > +{ > + kasan_set_track(&kasan_get_alloc_meta(cache, object)->alloc_track, flags); > +} > + > static void *__kasan_kmalloc(struct kmem_cache *cache, const void *object, > size_t size, gfp_t flags, bool keep_tag) > { > @@ -345,7 +350,7 @@ static void *__kasan_kmalloc(struct kmem_cache *cache, const void *object, > KASAN_KMALLOC_REDZONE); > > if (cache->flags & SLAB_KASAN) > - kasan_set_track(&kasan_get_alloc_meta(cache, object)->alloc_track, flags); > + set_alloc_info(cache, (void *)object, flags); > > return set_tag(object, tag); > } > -- > 2.29.2.222.g5d2a92d10f8-goog >