K 10 svn:author V 3 kib K 8 svn:date V 27 2012-08-31T11:48:04.896834Z K 7 svn:log V 357 MFC r238623: Introduce curpcb magic variable, similar to curthread, which is MD amd64. It is implemented as __pure2 inline with non-volatile asm read from pcpu, which allows a compiler to cache its results. Convert most PCPU_GET(pcb) and curthread->td_pcb accesses into curpcb. MFC r238723: Forcibly shut up clang warning about NULL pointer dereference. END