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| author | Lorenzo Stoakes <lorenzo.stoakes@oracle.com> | 2025-05-29 18:15:48 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-07-09 22:41:54 -0700 |
| commit | 4a1ff347e44ce45e8a5c15f466574583b019e4f9 (patch) | |
| tree | f68ad4cc5eaa42aa1a8d3455586702c3ffcc7dc9 /mm/hugetlb.c | |
| parent | cf7e7a3503df0b71afd68ee84e9a09d4514cc2dd (diff) | |
| download | tip-4a1ff347e44ce45e8a5c15f466574583b019e4f9.tar.gz | |
tools/testing/selftests: add VMA merge tests for KSM merge
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!
Link: https://lkml.kernel.org/r/6dec7aabf062c6b121cfac992c9c716cefdda00c.1748537921.git.lorenzo.stoakes@oracle.com
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>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jann Horn <jannh@google.com>
Cc: Stefan Roesch <shr@devkernel.io>
Cc: Xu Xin <xu.xin16@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/hugetlb.c')
0 files changed, 0 insertions, 0 deletions