io_uring/kbuf: move pinning of provided buffer ring into helper
In preparation for allowing the kernel to allocate the provided buffer rings and have the application mmap it instead, abstract out the current method of pinning and mapping the user allocated ring. No functional changes intended in this patch. Acked-by:Helge Deller <deller@gmx.de> Signed-off-by:
Jens Axboe <axboe@kernel.dk>
parent
d808459b
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