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authorJeremy Fitzhardinge <jeremy@xensource.com>2007-07-17 21:37:05 -0400
committerJeremy Fitzhardinge <jeremy@goop.org>2007-07-18 11:47:43 -0400
commitc85b04c3749507546f6d5868976e4793e35c2ec0 (patch)
tree77ad99f3850d11dab3df2b8b7e1998754d72d8bd /include/linux/page-flags.h
parente738fca8d7dffec30eeee231c38f128eed56c8c8 (diff)
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>
Diffstat (limited to 'include/linux/page-flags.h')
-rw-r--r--include/linux/page-flags.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index ae2d79f2107e..731cd2ac3227 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -92,6 +92,7 @@
92 92
93/* PG_owner_priv_1 users should have descriptive aliases */ 93/* PG_owner_priv_1 users should have descriptive aliases */
94#define PG_checked PG_owner_priv_1 /* Used by some filesystems */ 94#define PG_checked PG_owner_priv_1 /* Used by some filesystems */
95#define PG_pinned PG_owner_priv_1 /* Xen pinned pagetable */
95 96
96#if (BITS_PER_LONG > 32) 97#if (BITS_PER_LONG > 32)
97/* 98/*
@@ -170,6 +171,10 @@ static inline void SetPageUptodate(struct page *page)
170#define SetPageChecked(page) set_bit(PG_checked, &(page)->flags) 171#define SetPageChecked(page) set_bit(PG_checked, &(page)->flags)
171#define ClearPageChecked(page) clear_bit(PG_checked, &(page)->flags) 172#define ClearPageChecked(page) clear_bit(PG_checked, &(page)->flags)
172 173
174#define PagePinned(page) test_bit(PG_pinned, &(page)->flags)
175#define SetPagePinned(page) set_bit(PG_pinned, &(page)->flags)
176#define ClearPagePinned(page) clear_bit(PG_pinned, &(page)->flags)
177
173#define PageReserved(page) test_bit(PG_reserved, &(page)->flags) 178#define PageReserved(page) test_bit(PG_reserved, &(page)->flags)
174#define SetPageReserved(page) set_bit(PG_reserved, &(page)->flags) 179#define SetPageReserved(page) set_bit(PG_reserved, &(page)->flags)
175#define ClearPageReserved(page) clear_bit(PG_reserved, &(page)->flags) 180#define ClearPageReserved(page) clear_bit(PG_reserved, &(page)->flags)