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However, it's a prerequisite for other huge page optimisations, like improved dma mappings and large page pool allocation sizes. There is no new uapi, but there is a basic example: https://github.com/isilence/liburing/tree/zcrx-huge-page Pavel Begunkov (4): io_uring/zcrx: add helper for importing user memory io_uring/zcrx: add initial infra for large pages io_uring: export io_coalesce_buffer() io_uring/zcrx: coalesce areas with huge pages io_uring/rsrc.c | 2 +- io_uring/rsrc.h | 2 ++ io_uring/zcrx.c | 88 +++++++++++++++++++++++++++++++++++++------------ io_uring/zcrx.h | 3 ++ 4 files changed, 73 insertions(+), 22 deletions(-) -- 2.48.1