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Author SHA1 Message Date
Paolo Bonzini c740ad92d0 QSLIST: add lock-free operations 
These operations are trivial to implement and do not have ABA problems.
They are enough to implement simple multiple-producer, single consumer
lock-free lists or, as in the next patch, the multiple consumers can
steal a whole batch of elements and process them at their leisure.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 1417518350-6167-5-git-send-email-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
 2015-01-13 13:43:29 +00:00
Paolo Bonzini 82595da8de linux-aio: simplify removal of completed iocbs from the list 
There is no need to do another O(n) pass on the list; the iocb to
split the list at is already available through the array we passed to
io_submit.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1418305950-30924-6-git-send-email-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
 2014-12-12 16:57:55 +00:00
Paolo Bonzini 1de7afc984 misc: move include files to include/qemu/ 
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2012-12-19 08:32:39 +01:00