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1f6540e2aa
Provide new operations for the user to request mapping an active request to an io uring instance's buf_table. The user has to provide the index it wants to install the buffer. A reference count is taken on the request to ensure it can't be completed while it is active in a ring's buf_table. Signed-off-by: Keith Busch <kbusch@kernel.org> Link: https://lore.kernel.org/r/20250227223916.143006-6-kbusch@meta.com Reviewed-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>