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(parent: d992f2f) | patch
tests-aio-multithread: use atomic_read properly
authorPaolo Bonzini <pbonzini@redhat.com>
Mon, 27 Feb 2017 11:17:26 +0000 (12:17 +0100)
committerPeter Maydell <peter.maydell@linaro.org>
Mon, 27 Feb 2017 12:54:08 +0000 (12:54 +0000)
commit3b1d8169844fafee184366b0e0d7080534758b4d
tree8f494ceb20aecaeea0d11077de547e102a9ba54ftree | snapshot
parentd992f2f1368ceb92e6bfd8efece174110f4236ffcommit | diff
tests-aio-multithread: use atomic_read properly

nodes[id].next is written by other threads.  If atomic_read is not used
(matching atomic_set in mcs_mutex_lock!) the compiler can optimize the
whole "if" away!

Reported-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Greg Kurz <groug@kaod.org>
Message-id: 20170227111726.9237-1-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
tests/test-aio-multithread.c diff | blob | history
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