On Tue, 17 Nov 2009 16:17:50 +0900 (JST) KOSAKI Motohiro <[email protected]> wrote:
> Non MM subsystem must not use PF_MEMALLOC. Memory reclaim need few > memory, anyone must not prevent it. Otherwise the system cause > mysterious hang-up and/or OOM Killer invokation. So now what happens if we are paging and all our memory is tied up for writeback to a device or CIFS etc which can no longer allocate the memory to complete the write out so the MM can reclaim ? Am I missing something or is this patch set not addressing the case where the writeback thread needs to inherit PF_MEMALLOC somehow (at least for the I/O in question and those blocking it) Alan -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
