tree 37d92a455884260149a2b832892de849a7037aa2
parent e3a0abfda71db1fa83be894dcff7c4871b36cc8d
author Fam Zheng <famz@redhat.com> 1426496613 +0800
committer Paolo Bonzini <pbonzini@redhat.com> 1430151857 +0200

exec: Atomic access to bounce buffer

There could be a race condition when two processes call
address_space_map concurrently and both want to use the bounce buffer.

Add an in_use flag in BounceBuffer to sync it.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1426496617-10702-2-git-send-email-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>