commit e845d65704668885ddb0aaa37c2239fd8079d589
author Maxim Dounin <mdounin@mdounin.ru> Tue Mar 28 18:15:41 2017 +0300
committer Maxim Dounin <mdounin@mdounin.ru> Tue Mar 28 18:15:41 2017 +0300
tree e63a9598fb093ba8f44b32b1e0123dadb51baed6
parent a788d574a3b82f2086da74d53b258bbbf4b2a3bc

Threads: fixed request hang with aio_write and subrequests.

If the subrequest is already finalized, the handler set with aio_write
may still be used by sendfile in threads when using range requests
(see also e4c1f5b32868, and the original note in 9fd738b85fad).  Calling
already finalized subrequest's r->write_event_handler in practice
results in request hang in some cases.

Fix is to trigger connection event handler if the subrequest was already
finalized.