io_uring/rsrc: rename misleading src_node variable in io_clone_buffers()
The variable holds nodes from the destination ring's existing buffer
table. In io_clone_buffers(), the term "src" is used to refer to the
source ring.
Rename to node for clarity.
Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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