[GIT PULL] Remove barrier in _io_uring_get_sqe

[MikuChan03]

As in #1130

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git request-pull output:

The following changes since commit c1cee95b0266c360a8017248704d46d94dd72922:

  Merge branch 'fix_clear_flags' of https://github.com/gxuu/liburing (2024-04-14 06:23:36 -0600)

are available in the Git repository at:

  https://github.com/MikuChan03/liburing master

for you to fetch changes up to 340994f4abf9de56f63962bb512612c0a7c5a3eb:

  Remove barrier in _io_uring_get_sqe (2024-04-17 18:04:12 +0200)

----------------------------------------------------------------
MikuChan03 (1):
      Remove barrier in _io_uring_get_sqe

 src/include/liburing.h | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

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src/queue: don't flush SQ ring for new wait interface

If we have IORING_FEAT_EXT_ARG, then timeouts are done through the
syscall instead of by posting an internal timeout. This was done
to be both more efficient, but also to enable multi-threaded use
the wait side. If we touch the SQ state by flushing it, that isn't
safe without synchronization.

Fixes: https://github.com/axboe/liburing/issues/402
Signed-off-by: Jens Axboe <[email protected]>

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