The page frag allocator is not designed for fragsz > PAGE_SIZE. Explicitly check it in the function & document the fragsz limit.
Haiyang Zhang (2): mm: page_frag: Check fragsz at the beginning of __page_frag_alloc_align() docs/mm: Specify page frag size is not bigger than PAGE_SIZE Documentation/mm/page_frags.rst | 2 +- mm/page_frag_cache.c | 22 +++++++++------------- 2 files changed, 10 insertions(+), 14 deletions(-) -- 2.34.1
