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Sat, 24 Feb 2024 13:02:38 -0800 (PST) Received: from [2620:0:1008:15:ce41:1384:fbb2:c9bc] ([2620:0:1008:15:ce41:1384:fbb2:c9bc]) by smtp.gmail.com with ESMTPSA id c10-20020aa781ca000000b006e4ce93dc28sm1468928pfn.104.2024.02.24.13.02.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 24 Feb 2024 13:02:37 -0800 (PST) Date: Sat, 24 Feb 2024 13:02:37 -0800 (PST) From: David Rientjes To: Vlastimil Babka cc: Christoph Lameter , Pekka Enberg , Joonsoo Kim , Andrew Morton , Roman Gushchin , Hyeonggon Yoo <42.hyeyoo@gmail.com>, Andrey Ryabinin , Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov , Vincenzo Frascino , Zheng Yejian , Xiongwei Song , Chengming Zhou , linux-mm@kvack.org, linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com Subject: Re: [PATCH v2 3/3] mm, slab, kasan: replace kasan_never_merge() with SLAB_NO_MERGE In-Reply-To: <20240223-slab-cleanup-flags-v2-3-02f1753e8303@suse.cz> Message-ID: <78910de2-097d-9dea-4e00-acaf40af0299@google.com> References: <20240223-slab-cleanup-flags-v2-0-02f1753e8303@suse.cz> <20240223-slab-cleanup-flags-v2-3-02f1753e8303@suse.cz> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII On Fri, 23 Feb 2024, Vlastimil Babka wrote: > The SLAB_KASAN flag prevents merging of caches in some configurations, > which is handled in a rather complicated way via kasan_never_merge(). > Since we now have a generic SLAB_NO_MERGE flag, we can instead use it > for KASAN caches in addition to SLAB_KASAN in those configurations, > and simplify the SLAB_NEVER_MERGE handling. > > Tested-by: Xiongwei Song > Reviewed-by: Chengming Zhou > Reviewed-by: Andrey Konovalov > Signed-off-by: Vlastimil Babka Tested-by: David Rientjes