Messages in this thread | | | Date | Mon, 13 Jan 2003 22:32:53 -0800 (PST) | Subject | Re: [PATCH] __cacheline_aligned_in_smp? | From | "David S. Miller" <> |
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From: Rusty Russell <rusty@rustcorp.com.au> Date: Tue, 14 Jan 2003 12:10:12 +1100
Hmm, you really want to weakly align it: you don't care if something follows it on the cacheline, (ie. don't make it into an array, but it'd be nice if other things could share the cacheline) in UP.
No, that is an incorrect statement.
I want the rest of the cacheline to be absent of any write-possible data. There are many members in there which are read-only and thus will only consume a cacheline which would never need to be written back to main memory due to modification.
If you allow other things to seep into that cache line, you totally obliterate what I was trying to accomplish.
I don't think there's a way of doing that short of using asm?
You really don't understand what I'm trying to accomplish.
I want alignment on cache line boundary, and I don't want anything else in that cacheline.
Franks a lot, David S. Miller davem@redhat.com - 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/
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