Messages in this thread | | | Date | Mon, 19 Dec 2011 19:40:47 +0100 | From | Andi Kleen <> | Subject | Re: [RFC][PATCH 2/3] pagemap: export KPF_THP |
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> diff --git 3.2-rc5.orig/fs/proc/page.c 3.2-rc5/fs/proc/page.c > index 6d8e6a9..d436fc6 100644 > --- 3.2-rc5.orig/fs/proc/page.c > +++ 3.2-rc5/fs/proc/page.c > @@ -116,6 +116,11 @@ u64 stable_page_flags(struct page *page) > if (PageHuge(page)) > u |= 1 << KPF_HUGE; > > +#ifdef CONFIG_TRANSPARENT_HUGEPAGE > + if (PageTransCompound(page)) > + u |= 1 << KPF_THP; > +#endif
It would be better to have PageTransCompound be a dummy (always 0) for !CONFIG_TRANSPARENT_HUGEPAGE and KPF_THP always defined. This would keep ifdefery in the headers.
-Andi
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