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for-5.19/io_uring-net-2022-05-22

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Merge tag 'for-5.19/io_uring-net-2022-05-22' of git://git.kernel.dk/linux-block

Pull io_uring 'more data in socket' support from Jens Axboe:
 "To be able to fully utilize the 'poll first' support in the core
  io_uring branch, it's advantageous knowing if the socket was empty
  after a receive. This adds support for that"

* tag 'for-5.19/io_uring-net-2022-05-22' of git://git.kernel.dk/linux-block:
  io_uring: return hint on whether more data is available after receive
  tcp: pass back data left in socket after receive
This commit is contained in:
Linus Torvalds 2022-05-23 12:51:04 -07:00
commit e1a8fde720
4 changed files with 32 additions and 12 deletions
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2
include/uapi/linux/io_uring.h
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@ -258,9 +258,11 @@ struct io_uring_cqe {
*
* IORING_CQE_F_BUFFER If set, the upper 16 bits are the buffer ID
* IORING_CQE_F_MORE If set, parent SQE will generate more CQE entries
* IORING_CQE_F_SOCK_NONEMPTY If set, more data to read after socket recv
*/
#define IORING_CQE_F_BUFFER (1U << 0)
#define IORING_CQE_F_MORE (1U << 1)
#define IORING_CQE_F_SOCK_NONEMPTY (1U << 2)
enum {
IORING_CQE_BUFFER_SHIFT = 16,