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| author | Kiryl Shutsemau (Meta) <kas@kernel.org> | 2026-05-29 20:23:26 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-06-09 04:21:28 +0300 |
| commit | 1b074e3270e1c061c829150c742eb83bad4dddd1 (patch) | |
| tree | a22a937e09c2bef1b0a5c564341f635e99c88eb8 /include/linux/input | |
| parent | 04718f7c9290f95385f0dd328758753dc1c36dec (diff) | |
| download | linux-1b074e3270e1c061c829150c742eb83bad4dddd1.tar.xz | |
fs/proc/task_mmu: use huge_page_size() in pagemap_scan_hugetlb_entry()
The partial-page check compares against HPAGE_SIZE (PMD_SIZE), which is
wrong for gigantic hugetlb hstates (e.g. 1G). The walker hands the
callback a huge_page_size()-sized range, never start + HPAGE_SIZE, so the
comparison always declares it partial and aborts the WP. Compare against
the actual hstate's page size.
Link: https://lore.kernel.org/20260529172331.356655-3-kas@kernel.org
Fixes: 52526ca7fdb9 ("fs/proc/task_mmu: implement IOCTL to get and optionally clear info about PTEs")
Signed-off-by: Kiryl Shutsemau <kas@kernel.org>
Reported-by: Sashiko AI review <sashiko-bot@kernel.org>
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>
Reviewed-by: Dev Jain <dev.jain@arm.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Peter Xu <peterx@redhat.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Balbir Singh <balbirs@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/input')
0 files changed, 0 insertions, 0 deletions