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add a header file for atomic operations
We're already using them in several places, but __sync builtins are justtoo ugly to type, and do not provide seqcst load/store operations.
Reviewed-by: Richard Henderson <rth@twiddle.net>Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
block-migration: add lock
Some state is shared between the block migration code and its AIOcallbacks. Once block migration will run outside the iothread,the block migration code and the AIO callbacks will be able torun concurrently. Protect the critical sections with a separate...
misc: move include files to include/qemu/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>