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| author | Zi Yan <ziy@nvidia.com> | 2024-03-07 21:18:54 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-03-12 23:07:17 +0300 |
| commit | 2394aef616cf38fbf2e797c6845ccd35d76ce256 (patch) | |
| tree | f76d2d2dc05ec05bdbe3566f12359a3a71d5ce27 /tools/perf/scripts/python/task-analyzer.py | |
| parent | 1412ecb3d256e5d23c6bd150e110cef6e3736844 (diff) | |
| download | linux-2394aef616cf38fbf2e797c6845ccd35d76ce256.tar.xz | |
mm/huge_memory: skip invalid debugfs new_order input for folio split
User can put arbitrary new_order via debugfs for folio split test.
Although new_order check is added to split_huge_page_to_list_order() in
the prior commit, these two additional checks can avoid unnecessary folio
locking and split_folio_to_order() calls.
Link: https://lkml.kernel.org/r/20240307181854.138928-2-zi.yan@sent.com
Signed-off-by: Zi Yan <ziy@nvidia.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/linux-mm/7dda9283-b437-4cf8-ab0d-83c330deb9c0@moroto.mountain/
Cc: David Hildenbrand <david@redhat.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
0 files changed, 0 insertions, 0 deletions