Messages in this thread | | | From | KOSAKI Motohiro <> | Subject | Re: [PATCH 2/5] page allocator: Do not allow interrupts to use ALLOC_HARDER | Date | Fri, 13 Nov 2009 14:24:13 +0900 (JST) |
| |
> Commit 341ce06f69abfafa31b9468410a13dbd60e2b237 altered watermark logic > slightly by allowing rt_tasks that are handling an interrupt to set > ALLOC_HARDER. This patch brings the watermark logic more in line with > 2.6.30.
ditto. afaik, this patch have been sent to linus.
> > [rientjes@google.com: Spotted the problem] > Signed-off-by: Mel Gorman <mel@csn.ul.ie> > Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> > Reviewed-by: Rik van Riel <riel@redhat.com> > Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> > --- > mm/page_alloc.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/mm/page_alloc.c b/mm/page_alloc.c > index 250d055..2bc2ac6 100644 > --- a/mm/page_alloc.c > +++ b/mm/page_alloc.c > @@ -1769,7 +1769,7 @@ gfp_to_alloc_flags(gfp_t gfp_mask) > * See also cpuset_zone_allowed() comment in kernel/cpuset.c. > */ > alloc_flags &= ~ALLOC_CPUSET; > - } else if (unlikely(rt_task(p))) > + } else if (unlikely(rt_task(p)) && !in_interrupt()) > alloc_flags |= ALLOC_HARDER; > > if (likely(!(gfp_mask & __GFP_NOMEMALLOC))) { > -- > 1.6.5 >
| |