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Commit c85b04c3 authored by Jeremy Fitzhardinge's avatar Jeremy Fitzhardinge Committed by Jeremy Fitzhardinge
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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: default avatarJeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: default avatarChris Wright <chrisw@sous-sol.org>
parent e738fca8

include/linux/page-flags.h

+5 −0
Original line number Diff line number Diff line
@@ -92,6 +92,7 @@ 


/* PG_owner_priv_1 users should have descriptive aliases */

#define PG_checked		PG_owner_priv_1 /* Used by some filesystems */

#define PG_pinned		PG_owner_priv_1	/* Xen pinned pagetable */



#if (BITS_PER_LONG > 32)

/*
@@ -170,6 +171,10 @@ static inline void SetPageUptodate(struct page *page) 
#define SetPageChecked(page)	set_bit(PG_checked, &(page)->flags)

#define ClearPageChecked(page)	clear_bit(PG_checked, &(page)->flags)



#define PagePinned(page)	test_bit(PG_pinned, &(page)->flags)

#define SetPagePinned(page)	set_bit(PG_pinned, &(page)->flags)

#define ClearPagePinned(page)	clear_bit(PG_pinned, &(page)->flags)



#define PageReserved(page)	test_bit(PG_reserved, &(page)->flags)

#define SetPageReserved(page)	set_bit(PG_reserved, &(page)->flags)

#define ClearPageReserved(page)	clear_bit(PG_reserved, &(page)->flags)