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| author | Vivek Kasireddy <[email protected]> | 2025-06-18 05:30:55 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2025-07-10 05:42:15 +0000 |
| commit | cf34cfbf1784be7ce9f22789aa157535eff2195f (patch) | |
| tree | 340a6487071183e8051936020b949c6f2ac9b927 /lib/alloc_tag.c | |
| parent | mm/memfd: reserve hugetlb folios before allocation (diff) | |
| download | kernel-cf34cfbf1784be7ce9f22789aa157535eff2195f.tar.gz kernel-cf34cfbf1784be7ce9f22789aa157535eff2195f.zip | |
selftests/udmabuf: add a test to pin first before writing to memfd
Unlike the existing tests, this new test will create a memfd (backed by
hugetlb) and pin the folios in it (a small subset) before writing/
populating it with data. This is a valid use-case that invokes the
memfd_alloc_folio() kernel API and is expected to work unless there aren't
enough hugetlb folios to satisfy the allocation needs.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Vivek Kasireddy <[email protected]>
Cc: Gerd Hoffmann <[email protected]>
Cc: Steve Sistare <[email protected]>
Cc: Muchun Song <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Oscar Salvador <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'lib/alloc_tag.c')
0 files changed, 0 insertions, 0 deletions