AUDIT_SYSCALL_EXIT() and indirectly audit_commit() is intended to be
called from arbitrary top-level context. This means that any sleepable
locks can be owned by the caller, and which makes the sleeping in
audit_commit() forbidden.
Since we need to sleep for the record in audit_alloc() anyway, move the
sleep for the queue limit there. At worst, if the audit is suspended is
disabled when we actually reach the commit location, this means that we
lost time uselessly.
PR: 287566
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D50879
0452f5f7b3