cvs commit: src/sys/kern kern_time.c

[Matthew Dillon]

:
:On Fri, Apr 22, 2005 at 09:50:57AM -0700, Matthew Dillon wrote:
:>     The cpu_mb1() call should not be necessary.  Theoretically
:>     the lwkt_send_ipiq() call in lwkt_setcpu_self() is responsible
:>     for synchronizing the data on the originating cpu with the
:>     target.  In reallity, for IA32, the synchronization is mostly
:>     inherent due to the fact that IA32 orders writes.
:
:I did the same thing we did in the network code for the PCB
:export.
:
:Joerg

    Hmm.  I think we can at least move it into lwkt_setcpu_self()
    itself.  I must have done it originally just through paranoia.

    I'm still tracking down a network issue and don't want to 
    cvs update my tree just yet.  Could you make that change?
    (remove cpu_mb1() from after the calls to lwkt_setcpu_self()
    and add a cpu_mb1() at the end inside lwkt_setcpu_self()).

					-Matt
					Matthew Dillon 
					<dillon at xxxxxxxxxxxxx>