[PATCH liburing 0/5] segfault and not only fixes

[Pavel Begunkov <asml.silence@gmail.com>]

First 4 should be good and simple. 5/5 is my shot on the segfaults,
take it with a grain of salt.

link-timeout failure is a separate beast, it's from the old times,
and comes from the kernel's io_async_find_and_cancel() failing with
ENOENT(?) when a linked-timeout sees its master but fails to cancel
it, e.g. when the master is in IRQ or posting CQE.
Maybe we just need to fix the test.

Pavel Begunkov (5):
  src/queue: don't re-wait for CQEs
  src/queue: control kernel enter with a var
  test/link-timeout: close pipes after yourself
  test/sq-poll-share: don't ignore wait errors
  src/queue: fix no-error with NULL cqe

 src/include/liburing.h |  4 +++-
 src/queue.c            | 22 +++++++++-------------
 test/link-timeout.c    |  2 ++
 test/sq-poll-share.c   |  9 ++++++++-
 4 files changed, 22 insertions(+), 15 deletions(-)

-- 
2.24.0