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Dr. David Alan Gilbert
5626f8c6d4
RCU_READ_LOCK_GUARD() takes the rcu_read_lock and then uses glib's
g_auto infrastructure (and thus whatever the compiler's hooks are) to
release it on all exits of the block.
WITH_RCU_READ_LOCK_GUARD() is similar but is used as a wrapper for the
lock, i.e.:
WITH_RCU_READ_LOCK_GUARD() {
stuff under lock
}
Note the 'unused' attribute is needed to work around clang bug:
https://bugs.llvm.org/show_bug.cgi?id=43482
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20191007143642.301445-2-dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>