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[PATCH 3/3] mm: Remove unused page flags

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From: Rafael J. Wysocki <rjw@...>
To: Andrew Morton <akpm@...>
Cc: Pavel Machek <pavel@...>, Peter Zijlstra <a.p.zijlstra@...>, LKML <linux-kernel@...>
Subject: [PATCH 3/3] mm: Remove unused page flags
Date: Monday, March 12, 2007 - 5:20 pm

From: Rafael J. Wysocki <rjw@sisk.pl>

Remove the two page flags that were previously used by swsusp and are no longer
needed.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
---
 include/linux/page-flags.h |   12 ------------
 1 file changed, 12 deletions(-)

Index: linux-2.6.21-rc3/include/linux/page-flags.h
===================================================================
--- linux-2.6.21-rc3.orig/include/linux/page-flags.h
+++ linux-2.6.21-rc3/include/linux/page-flags.h
@@ -82,13 +82,11 @@
 #define PG_private		11	/* If pagecache, has fs-private data */
 
 #define PG_writeback		12	/* Page is under writeback */
-#define PG_nosave		13	/* Used for system suspend/resume */
 #define PG_compound		14	/* Part of a compound page */
 #define PG_swapcache		15	/* Swap page: swp_entry_t in private */
 
 #define PG_mappedtodisk		16	/* Has blocks allocated on-disk */
 #define PG_reclaim		17	/* To be reclaimed asap */
-#define PG_nosave_free		18	/* Used for system suspend/resume */
 #define PG_buddy		19	/* Page is free, on buddy lists */
 
 /* PG_owner_priv_1 users should have descriptive aliases */
@@ -214,16 +212,6 @@ static inline void SetPageUptodate(struc
 		ret;							\
 	})
 
-#define PageNosave(page)	test_bit(PG_nosave, &(page)->flags)
-#define SetPageNosave(page)	set_bit(PG_nosave, &(page)->flags)
-#define TestSetPageNosave(page)	test_and_set_bit(PG_nosave, &(page)->flags)
-#define ClearPageNosave(page)		clear_bit(PG_nosave, &(page)->flags)
-#define TestClearPageNosave(page)	test_and_clear_bit(PG_nosave, &(page)->flags)
-
-#define PageNosaveFree(page)	test_bit(PG_nosave_free, &(page)->flags)
-#define SetPageNosaveFree(page)	set_bit(PG_nosave_free, &(page)->flags)
-#define ClearPageNosaveFree(page)		clear_bit(PG_nosave_free, &(page)->flags)
-
 #define PageBuddy(page)		test_bit(PG_buddy, &(page)->flags)
 #define __SetPageBuddy(page)	__set_bit(PG_buddy, &(page)->flags)
 #define __ClearPageBuddy(page)	__clear_bit(PG_buddy, &(page)->flags)
-
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Messages in current thread:
[PATCH 0/3] swsusp: Stop using page flags, Rafael J. Wysocki, (Mon Mar 12, 5:14 pm)
[PATCH 2/3] swsusp: Do not use page flags, Rafael J. Wysocki, (Mon Mar 12, 5:19 pm)
Re: [PATCH 2/3] swsusp: Do not use page flags, Andrew Morton, (Mon Mar 19, 8:31 pm)
Re: [PATCH 2/3] swsusp: Do not use page flags, Rafael J. Wysocki, (Tue Mar 20, 5:18 pm)
[PATCH 4/5] swsusp: fix error paths in snapshot_open, Rafael J. Wysocki, (Tue Mar 20, 5:26 pm)
Re: [PATCH 4/5] swsusp: fix error paths in snapshot_open, Pavel Machek, (Tue Mar 20, 6:16 pm)
Re: [PATCH 4/5] swsusp: fix error paths in snapshot_open, Rafael J. Wysocki, (Tue Mar 20, 6:24 pm)
Re: [PATCH 4/5] swsusp: fix error paths in snapshot_open, Pavel Machek, (Tue Mar 20, 6:24 pm)
Re: [PATCH 4/5] swsusp: fix error paths in snapshot_open, Rafael J. Wysocki, (Tue Mar 20, 6:52 pm)
[PATCH 2/5] swsusp: do not use page flags, Rafael J. Wysocki, (Tue Mar 20, 5:22 pm)
[PATCH 5/5] swsusp: Use GFP_KERNEL for creating basic data s..., Rafael J. Wysocki, (Tue Mar 20, 5:28 pm)
Re: [PATCH 5/5] swsusp: Use GFP_KERNEL for creating basic da..., Pavel Machek, (Tue Mar 20, 6:17 pm)
[PATCH 3/5] mm: remove unused page flags, Rafael J. Wysocki, (Tue Mar 20, 5:25 pm)
[PATCH 1/5] swsusp: Use inline functions for changing page f..., Rafael J. Wysocki, (Tue Mar 20, 5:20 pm)
Re: [PATCH 2/3] swsusp: Do not use page flags, Pavel Machek, (Tue Mar 20, 9:18 am)
Re: [PATCH 2/3] swsusp: Do not use page flags, Andrew Morton, (Thu Mar 15, 3:08 pm)
Re: [PATCH 2/3] swsusp: Do not use page flags, Rafael J. Wysocki, (Thu Mar 15, 5:05 pm)
Re: [PATCH 2/3] swsusp: Do not use page flags, Andrew Morton, (Thu Mar 15, 5:29 pm)
Re: [PATCH 2/3] swsusp: Do not use page flags, Pavel Machek, (Thu Mar 15, 7:05 pm)
Re: [PATCH 2/3] swsusp: Do not use page flags, Jiri Kosina, (Thu Mar 15, 6:19 pm)
Re: [PATCH 2/3] swsusp: Do not use page flags, Andrew Morton, (Thu Mar 15, 6:23 pm)
Re: [PATCH 2/3] swsusp: Do not use page flags, Rafael J. Wysocki, (Thu Mar 15, 8:01 pm)
[PATCH 3/3] mm: Remove unused page flags, Rafael J. Wysocki, (Mon Mar 12, 5:20 pm)
[PATCH 1/3] swsusp: Use inline functions for changing page f..., Rafael J. Wysocki, (Mon Mar 12, 5:16 pm)