[lkml]   [2002]   [Dec]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [RFC][PATCH] net drivers and cache alignment
Andrew Morton wrote:
> It needs padding _only_ on SMP. ____cacheline_aligned_in_smp.
> So your patch will do what you want it to do. You should just tag the
> first member of a group with ____cacheline_aligned_in_smp, and keep an
> eye on things with offsetof().


For this case, though, I want to align on cacheline bounaries even on
UP, right? That's why I picked ____cacheline_aligned. It uses
L1_CACHE_BYTES when !CONFIG_SMP. Other uses of ____cacheline_aligned in
the kernel seem to relate to irq matters, just like my groupings in tg3.h.

[obviously benchmarking can answer some of this, but I want to hammer
out silliness first]


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

 \ /
  Last update: 2005-03-22 13:31    [W:0.081 / U:3.372 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site