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由 Paolo Bonzini 提交于
This is easy with the thread pool, because we can use s->is_xfs and s->has_discard from the worker function. QEMU has a widespread assumption that each I/O operation writes less than 2^32 bytes. This patch doesn't fix it throughout of course, but it starts correcting struct RawPosixAIOData so that there is no regression with respect to the synchronous discard implementation. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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