Re: [patch] waitqueue optimization, 2.4.0-test7

From: David S. Miller (
Date: Tue Aug 29 2000 - 05:28:23 EST

   Date: Tue, 29 Aug 2000 04:26:18 +0200 (CEST)
   From: Andrea Arcangeli <>

   Alpha definitely needs mb(), ld_l/st_c doesn't imply any memory
   barrier (yes, alpha is very aggressive in SMP 8).

I wonder if it then makes sense to just provide a set of bitops
interfaces then which enforces the barrier. Or perhaps the other way
around, make what we have now enforce the barriers and have
__clear_bit et al. not do the memory barrier part.

David S. Miller

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

This archive was generated by hypermail 2b29 : Thu Aug 31 2000 - 21:00:23 EST