Messages in this thread | | | From | Rusty Russell <> | Subject | Re: RFC: patch to allow lock-free traversal of lists with insertion ^M | Date | Sun, 14 Oct 2001 07:23:11 +1000 |
| |
In message <200110131628.f9DGSGW09534@eng4.beaverton.ibm.com> you write: > OK, here is an RFC patch with the read_barrier_depends(). (I know that > the indentation is messed up, will fix when I add the read_barrier() > and friends).
Yep, this is a 2.5 thing: we should probably combine change the barriers so read_barrier et. al. only have effect on SMP, and then have io_read_barrier for IO (these can be usefully differentiated on PPC IIUC).
The stillborn smp_mb() etc. can then be abandoned.
Rusty. -- Premature optmztion is rt of all evl. --DK - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |