Messages in this thread | | | From | "David S. Miller" <> | Date | Thu, 22 Mar 2001 02:02:40 -0800 (PST) | Subject | Re: kswapd deadlock 2.4.3-pre6 |
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Marcelo Tosatti writes: > Are you sure flush_page_to_ram()/flush_icache_page() without > page_table_lock held is ok for all archs?
This is actually a sticky area. For example, I remember that a long time ago I noticed that it wasn't necessarily guarenteed that even all the flush_tlb_{page,mm,range}() stuff was done under the page table lock.
Maybe things have changed since then, but...
Furthermore I did not specify that flush_page_to_ram/flush_icache_page can assume this, see Documentation/cachetlb.txt
I have no problem adding this invariant to some of the interfaces, but we have to audit things.
> Looking at arch/mips/mm/r2300.c:
The r2300 port is UP-only btw...
Later, 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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