tree d8fcd6369c982a338cf217af06c624d2974d8f84
parent e73a1df34092b88c7a577640810afebdfaf622bc
author Harald Welte <laforge@gnumonks.org> 1557997552 +0200
committer Harald Welte <laforge@gnumonks.org> 1557999148 +0200

ccid: Fix AIO handling of IN and IRQ endpoint

Even though functionfs forces us to use Linux AIO, we actually don't
want to submit multiple concurrent pendign writes, but we simply want
to emulate the poll/select interface.  So we must introduce a write
(message) queue for the IN and IRQ endpoint, and we must always only
pull one message off the queue, submit the iocb.  On completion, we
dequeue the next message, and so on.

Change-Id: I8f7026f13cf542185cfec4d4780c64965d1706e2