io_uring: add IORING_OP_MADVISE

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This adds support for doing madvise(2) through io_uring. We assume that
any operation can block, and hence punt everything async. This could be
improved, but hard to make bullet proof. The async punt ensures it's
safe.

Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Jens Axboe 2019-12-25 22:18:28 -07:00

parent db08ca2525

commit c1ca757bd6

2 changed files with 60 additions and 0 deletions

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59

fs/io_uring.c

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1

include/uapi/linux/io_uring.h

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