kernel.git/tools/testing/selftests/mm/rmap.c, branch linux-rolling-ltsHosts the 0x221E linux distro kernel.
https://git.0xinfinity.dev/distro/kernel.git/atom?h=linux-rolling-lts2025-09-13T23:55:13Zselftests/mm: test that rmap behaves as expected2025-09-13T23:55:13ZWei Yang2025-08-19T08:00:47Zurn:sha1:c9615059cab5ad8aa6b96195163a7478fcef194c
As David suggested, currently we don't have a high level test case to
verify the behavior of rmap. This patch introduce the verification on
rmap by migration.
The general idea is if migrate one shared page between processes, this
would be reflected in all related processes. Otherwise, we have problem
in rmap.
Currently it covers following four scenarios:
* anonymous page
* shmem page
* pagecache page
* ksm page
Link: https://lkml.kernel.org/r/20250819080047.10063-3-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Suggested-by: David Hildenbrand <david@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Harry Yoo <harry.yoo@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>