xen: add pinned page flag
Add a new definition for PG_owner_priv_1 to define PG_pinned on Xen pagetable pages. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
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@ -92,6 +92,7 @@
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/* PG_owner_priv_1 users should have descriptive aliases */
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#define PG_checked PG_owner_priv_1 /* Used by some filesystems */
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#define PG_pinned PG_owner_priv_1 /* Xen pinned pagetable */
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#if (BITS_PER_LONG > 32)
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/*
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@ -170,6 +171,10 @@ static inline void SetPageUptodate(struct page *page)
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#define SetPageChecked(page) set_bit(PG_checked, &(page)->flags)
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#define ClearPageChecked(page) clear_bit(PG_checked, &(page)->flags)
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#define PagePinned(page) test_bit(PG_pinned, &(page)->flags)
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#define SetPagePinned(page) set_bit(PG_pinned, &(page)->flags)
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#define ClearPagePinned(page) clear_bit(PG_pinned, &(page)->flags)
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#define PageReserved(page) test_bit(PG_reserved, &(page)->flags)
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#define SetPageReserved(page) set_bit(PG_reserved, &(page)->flags)
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#define ClearPageReserved(page) clear_bit(PG_reserved, &(page)->flags)
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