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Message-ID: <51d7af3f-a5a1-4a93-967d-dc4866060a28@suse.cz> Date: Fri, 30 May 2025 09:17:37 +0200 From: Vlastimil Babka <vbabka@...e.cz> To: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>, Andrew Morton <akpm@...ux-foundation.org> Cc: Alexander Viro <viro@...iv.linux.org.uk>, Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>, "Liam R . Howlett" <Liam.Howlett@...cle.com>, Jann Horn <jannh@...gle.com>, Pedro Falcato <pfalcato@...e.de>, David Hildenbrand <david@...hat.com>, Xu Xin <xu.xin16@....com.cn>, Chengming Zhou <chengming.zhou@...ux.dev>, linux-mm@...ck.org, linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org, Stefan Roesch <shr@...kernel.io> Subject: Re: [PATCH v3 4/4] tools/testing/selftests: add VMA merge tests for KSM merge On 5/29/25 19:15, Lorenzo Stoakes wrote: > Add test to assert that we have now allowed merging of VMAs when KSM > merging-by-default has been set by prctl(PR_SET_MEMORY_MERGE, ...). > > We simply perform a trivial mapping of adjacent VMAs expecting a merge, > however prior to recent changes implementing this mode earlier than before, > these merges would not have succeeded. > > Assert that we have fixed this! > > Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@...cle.com> > Reviewed-by: Chengming Zhou <chengming.zhou@...ux.dev> > Tested-by: Chengming Zhou <chengming.zhou@...ux.dev> > Reviewed-by: Liam R. Howlett <Liam.Howlett@...cle.com> Acked-by: Vlastimil Babka <vbabka@...e.cz>
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