On Fri, 2013-08-09 at 18:26 +0900, Joonsoo Kim wrote: > We don't need to grab a page_table_lock when we try to release a page. > So, defer to grab a page_table_lock. > > Reviewed-by: Naoya Horiguchi <n-horigu...@ah.jp.nec.com> > Signed-off-by: Joonsoo Kim <iamjoonsoo....@lge.com>
Reviewed-by: Davidlohr Bueso <davidl...@hp.com> > > diff --git a/mm/hugetlb.c b/mm/hugetlb.c > index c017c52..6c8eec2 100644 > --- a/mm/hugetlb.c > +++ b/mm/hugetlb.c > @@ -2627,10 +2627,11 @@ retry_avoidcopy: > } > spin_unlock(&mm->page_table_lock); > mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end); > - /* Caller expects lock to be held */ > - spin_lock(&mm->page_table_lock); > page_cache_release(new_page); > page_cache_release(old_page); > + > + /* Caller expects lock to be held */ > + spin_lock(&mm->page_table_lock); > return 0; > } > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
