7906271f25
to test req->td for NULL values and then do somewhat more bizarre things relating to securelevel special-casing and suser checks. Remove the testing and conditional security checks based on req->td!=NULL, and insert a KASSERT that td != NULL. Callers to sysctl must always specify the thread (be it kernel or otherwise) requesting the operation, or a number of current sysctls will fail due to assumptions that the thread exists. Obtained from: TrustedBSD Project Sponsored by: DARPA, NAI Labs Discussed with: bde