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2024-06-16io_uring/advise: support 64-bit lengthsJens Axboe1-6/+10
The existing fadvise/madvise support only supports 32-bit lengths. Add support for 64-bit lengths, enabled by the application setting sqe->off rather than sqe->len for the length. If sqe->len is set, then that is used as the 32-bit length. If sqe->len is zero, then sqe->off is read for full 64-bit support. Older kernels will return -EINVAL if 64-bit support isn't available. Fixes: 4840e418c2fc ("io_uring: add IORING_OP_FADVISE") Fixes: c1ca757bd6f4 ("io_uring: add IORING_OP_MADVISE") Reported-by: Stefan <source@s.muenzel.net> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-01-30io_uring: always go async for unsupported fadvise flagsDylan Yudaken1-10/+15
No point in issuing -> return -EAGAIN -> go async, when it can be done upfront. Signed-off-by: Dylan Yudaken <dylany@meta.com> Link: https://lore.kernel.org/r/20230127135227.3646353-4-dylany@meta.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-01-30io_uring: for requests that require async, force itDylan Yudaken1-2/+2
Some requests require being run async as they do not support non-blocking. Instead of trying to issue these requests, getting -EAGAIN and then queueing them for async issue, rather just force async upfront. Add WARN_ON_ONCE to make sure surprising code paths do not come up, however in those cases the bug would end up being a blocking io_uring_enter(2) which should not be critical. Signed-off-by: Dylan Yudaken <dylany@meta.com> Link: https://lore.kernel.org/r/20230127135227.3646353-3-dylany@meta.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-08-13io_uring: make io_kiocb_to_cmd() typesafeStefan Metzmacher1-4/+4
We need to make sure (at build time) that struct io_cmd_data is not casted to a structure that's larger. Signed-off-by: Stefan Metzmacher <metze@samba.org> Link: https://lore.kernel.org/r/c024cdf25ae19fc0319d4180e2298bade8ed17b8.1660201408.git.metze@samba.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-25io_uring: kill extra io_uring_types.h includesPavel Begunkov1-1/+0
io_uring/io_uring.h already includes io_uring_types.h, no need to include it every time. Kill it in a bunch of places, it prepares us for following patches. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/94d8c943fbe0ef949981c508ddcee7fc1c18850f.1655384063.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-25io_uring: split out fadvise/madvise operationsJens Axboe1-0/+100
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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