On Mon, Jan 31, 2011 at 11:03 PM, Johannes Weiner <hannes@xxxxxxxxxxx> wrote: > The charging code can encounter a charge size that is bigger than a > regular page in two situations: one is a batched charge to fill the > per-cpu stocks, the other is a huge page charge. > > This code is distributed over two functions, however, and only the > outer one is aware of huge pages. ÂIn case the charging fails, the > inner function will tell the outer function to retry if the charge > size is bigger than regular pages--assuming batched charging is the > only case. ÂAnd the outer function will retry forever charging a huge > page. > > This patch makes sure the inner function can distinguish between batch > charging and a single huge page charge. ÂIt will only signal another > attempt if batch charging failed, and go into regular reclaim when it > is called on behalf of a huge page. > > Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx> Reviewed-by: Minchan Kim <minchan.kim@xxxxxxxxx> -- Kind regards, Minchan Kim -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: <a href