Re: [PATCH] guard mm->rss with page_table_lock (241p11)

From: David Howells (dhowells@cambridge.redhat.com)
Date: Tue Jan 30 2001 - 03:18:56 EST


>...
> + spin_lock(&mm->page_table_lock);
> mm->rss++;
> + spin_unlock(&mm->page_table_lock);
>...

Would it not be better to use some sort of atomic add/subtract/clear operation
rather than a spinlock? (Which would also give you fewer atomic memory access
cycles).

David
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Wed Jan 31 2001 - 21:00:34 EST