[Qemu-stable] [PATCH v2 0/7] curl: locking cleanups/fixes, coroutine conversion, remove aio_poll

[Paolo Bonzini]

Since the last patch in v1 didn't work, I bit the bullet and converted
the whole thing to coroutines (patches 4-6).  This in turns allows a more
elegant solution to wait for CURLStates to get free (patch 7).

I tested this by lowering CURL_NUM_STATES to 2.  With this change, the
buggy case triggers a couple times while booting a Fedora netinst image.

Paolo

Paolo Bonzini (7):
  curl: strengthen assertion in curl_clean_state
  curl: never invoke callbacks with s->mutex held
  curl: avoid recursive locking of BDRVCURLState mutex
  curl: split curl_find_state/curl_init_state
  curl: convert CURLAIOCB to byte values
  curl: convert readv to coroutines
  curl: do not do aio_poll when waiting for a free CURLState

 block/curl.c              | 216 +++++++++++++++++++++++++---------------------
 1 files changed, 120 insertions(+), 96 deletions(-)

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2.12.2