From: Yasunori Goto <y-goto@jp.fujitsu.com>
To: Linux Hotplug Memory Support <lhms-devel@lists.sourceforge.net>,
linux-mm <linux-mm@kvack.org>
Cc: Joel Schopp <jschopp@austin.ibm.com>
Subject: [Patch] New zone ZONE_EASY_RECLAIM take 3. (define gfp_easy_relcaim)[1/5]
Date: Sat, 10 Dec 2005 20:02:42 +0900 [thread overview]
Message-ID: <20051210193701.4826.Y-GOTO@jp.fujitsu.com> (raw)
This defines __GFP flag for new zone with GFP_DMA32.
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Index: zone_reclaim/include/linux/gfp.h
===================================================================
--- zone_reclaim.orig/include/linux/gfp.h 2005-12-06 12:07:33.000000000 +0900
+++ zone_reclaim/include/linux/gfp.h 2005-12-06 13:51:33.000000000 +0900
@@ -16,10 +16,13 @@ struct vm_area_struct;
#define __GFP_HIGHMEM ((__force gfp_t)0x02u)
#ifdef CONFIG_DMA_IS_DMA32
#define __GFP_DMA32 ((__force gfp_t)0x01) /* ZONE_DMA is ZONE_DMA32 */
+#define __GFP_EASY_RECLAIM ((__force gfp_t)0x04u)
#elif BITS_PER_LONG < 64
#define __GFP_DMA32 ((__force gfp_t)0x00) /* ZONE_NORMAL is ZONE_DMA32 */
+#define __GFP_EASY_RECLAIM ((__force gfp_t)0x04u)
#else
#define __GFP_DMA32 ((__force gfp_t)0x04) /* Has own ZONE_DMA32 */
+#define __GFP_EASY_RECLAIM ((__force gfp_t)0x08u)
#endif
/*
@@ -64,7 +67,7 @@ struct vm_area_struct;
#define GFP_KERNEL (__GFP_WAIT | __GFP_IO | __GFP_FS)
#define GFP_USER (__GFP_WAIT | __GFP_IO | __GFP_FS | __GFP_HARDWALL)
#define GFP_HIGHUSER (__GFP_WAIT | __GFP_IO | __GFP_FS | __GFP_HARDWALL | \
- __GFP_HIGHMEM)
+ __GFP_HIGHMEM | __GFP_EASY_RECLAIM)
/* Flag - indicates that the buffer will be suitable for DMA. Ignored on some
platforms, used as appropriate on others */
Index: zone_reclaim/include/linux/mmzone.h
===================================================================
--- zone_reclaim.orig/include/linux/mmzone.h 2005-12-06 12:07:34.000000000 +0900
+++ zone_reclaim/include/linux/mmzone.h 2005-12-06 13:52:04.000000000 +0900
@@ -93,7 +93,7 @@ struct per_cpu_pageset {
*
* NOTE! Make sure this matches the zones in <linux/gfp.h>
*/
-#define GFP_ZONEMASK 0x07
+#define GFP_ZONEMASK 0x0f
#define GFP_ZONETYPES 5
/*
--
Yasunori Goto
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reply other threads:[~2005-12-10 11:02 UTC|newest]
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