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Merge tag 'for-5.20/io_uring-zerocopy-send-2022-07-29' of git://git.kernel.dk/linux-block
Pull io_uring zerocopy support from Jens Axboe:
"This adds support for efficient support for zerocopy sends through
io_uring. Both ipv4 and ipv6 is supported, as well as both TCP and
UDP.
The core network changes to support this is in a stable branch from
Jakub that both io_uring and net-next has pulled in, and the io_uring
changes are layered on top of that.
All of the work has been done by Pavel"
* tag 'for-5.20/io_uring-zerocopy-send-2022-07-29' of git://git.kernel.dk/linux-block: (34 commits)
io_uring: notification completion optimisation
io_uring: export req alloc from core
io_uring/net: use unsigned for flags
io_uring/net: make page accounting more consistent
io_uring/net: checks errors of zc mem accounting
io_uring/net: improve io_get_notif_slot types
selftests/io_uring: test zerocopy send
io_uring: enable managed frags with register buffers
io_uring: add zc notification flush requests
io_uring: rename IORING_OP_FILES_UPDATE
io_uring: flush notifiers after sendzc
io_uring: sendzc with fixed buffers
io_uring: allow to pass addr into sendzc
io_uring: account locked pages for non-fixed zc
io_uring: wire send zc request type
io_uring: add notification slot registration
io_uring: add rsrc referencing for notifiers
io_uring: complete notifiers in tw
io_uring: cache struct io_notif
io_uring: add zc notification infrastructure
...
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