Currently to setup a fully sparse descriptor space upfront, the app needs to alloate an array of the full size and memset it to -1 and then pass that in. Make this a bit easier by allowing a flag that simply does this internally rather than needing to copy each slot separately. This works with IORING_REGISTER_FILES2 as the flag is set in struct io_uring_rsrc_register, and is only allow when the type is IORING_RSRC_FILE as this doesn't make sense for registered buffers. Reviewed-by: Hao Xu <howeyxu@tencent.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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