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io_uring/memmap: implement kernel allocated regions
authorPavel Begunkov <asml.silence@gmail.com>
Fri, 29 Nov 2024 13:34:31 +0000 (13:34 +0000)
committerJens Axboe <axboe@kernel.dk>
Mon, 23 Dec 2024 15:17:16 +0000 (08:17 -0700)
commit1e21df691ffa2c277e0b1a4928c9da0e86e9a2be
tree4da08ab96df80e557a6f9ef8d7a9db9c7300cab8tree
parent4b851d20d325dc59f9abdce55d42dc4b68179db0commit | diff
io_uring/memmap: implement kernel allocated regions

Allow the kernel to allocate memory for a region. That's the classical
way SQ/CQ are allocated. It's not yet useful to user space as there
is no way to mmap it, which is why it's explicitly disabled in
io_register_mem_region().

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/7b8c40e6542546bbf93f4842a9a42a7373b81e0d.1732886067.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_uring/memmap.c diff | blob | history
io_uring/register.c diff | blob | history
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