[RFC/Patch]Making Removable zone[2/4]

[Yasunori Goto <ygoto@us.fujitsu.com>]

User processes and page cache can use removable area by this patch.


 hotremovable-goto/include/linux/gfp.h |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff -puN include/linux/gfp.h~gfp_removable include/linux/gfp.h
--- hotremovable/include/linux/gfp.h~gfp_removable	Fri Aug 27 21:06:57 2004
+++ hotremovable-goto/include/linux/gfp.h	Fri Aug 27 21:06:57 2004
@@ -11,9 +11,10 @@ struct vm_area_struct;
 /*
  * GFP bitmasks..
  */
-/* Zone modifiers in GFP_ZONEMASK (see linux/mmzone.h - low two bits) */
+/* Zone modifiers in GFP_ZONEMASK (see linux/mmzone.h - low three bits) */
 #define __GFP_DMA	0x01
 #define __GFP_HIGHMEM	0x02
+#define __GFP_REMOVABLE	0x04
 
 /*
  * Action modifiers - doesn't change the zoning
@@ -51,7 +52,7 @@ struct vm_area_struct;
 #define GFP_NOFS	(__GFP_WAIT | __GFP_IO)
 #define GFP_KERNEL	(__GFP_WAIT | __GFP_IO | __GFP_FS)
 #define GFP_USER	(__GFP_WAIT | __GFP_IO | __GFP_FS)
-#define GFP_HIGHUSER	(__GFP_WAIT | __GFP_IO | __GFP_FS | __GFP_HIGHMEM)
+#define GFP_HIGHUSER	(__GFP_WAIT | __GFP_IO | __GFP_FS | __GFP_HIGHMEM | __GFP_REMOVABLE)
 
 /* Flag - indicates that the buffer will be suitable for DMA.  Ignored on some
    platforms, used as appropriate on others */
_

-- 
Yasunori Goto <ygoto at us.fujitsu.com>


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