From: Vlastimil Babka <vbabka@suse.cz>
To: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>,
Christian Brauner <brauner@kernel.org>, Jan Kara <jack@suse.cz>,
"Liam R . Howlett" <Liam.Howlett@oracle.com>,
Jann Horn <jannh@google.com>, Pedro Falcato <pfalcato@suse.de>,
David Hildenbrand <david@redhat.com>,
Xu Xin <xu.xin16@zte.com.cn>,
Chengming Zhou <chengming.zhou@linux.dev>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org, Stefan Roesch <shr@devkernel.io>
Subject: Re: [PATCH v3 4/4] tools/testing/selftests: add VMA merge tests for KSM merge
Date: Fri, 30 May 2025 09:17:37 +0200 [thread overview]
Message-ID: <51d7af3f-a5a1-4a93-967d-dc4866060a28@suse.cz> (raw)
In-Reply-To: <6dec7aabf062c6b121cfac992c9c716cefdda00c.1748537921.git.lorenzo.stoakes@oracle.com>
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@oracle.com>
> Reviewed-by: Chengming Zhou <chengming.zhou@linux.dev>
> Tested-by: Chengming Zhou <chengming.zhou@linux.dev>
> Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
prev parent reply other threads:[~2025-05-30 7:17 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-29 17:15 [PATCH v3 0/4] mm: ksm: prevent KSM from breaking merging of new VMAs Lorenzo Stoakes
2025-05-29 17:15 ` [PATCH v3 1/4] mm: ksm: have KSM VMA checks not require a VMA pointer Lorenzo Stoakes
2025-05-29 17:15 ` [PATCH v3 2/4] mm: ksm: refer to special VMAs via VM_SPECIAL in ksm_compatible() Lorenzo Stoakes
2025-05-29 17:15 ` [PATCH v3 3/4] mm: prevent KSM from breaking VMA merging for new VMAs Lorenzo Stoakes
2025-05-30 7:15 ` Vlastimil Babka
2025-06-02 7:00 ` xu.xin16
2025-06-20 12:48 ` Lorenzo Stoakes
2025-06-22 19:39 ` Andrew Morton
2025-06-23 9:16 ` Lorenzo Stoakes
2025-06-23 8:37 ` Vlastimil Babka
2025-06-23 9:18 ` Lorenzo Stoakes
2025-05-29 17:15 ` [PATCH v3 4/4] tools/testing/selftests: add VMA merge tests for KSM merge Lorenzo Stoakes
2025-05-30 7:17 ` Vlastimil Babka [this message]
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