From: Yasunori Goto <y-goto@jp.fujitsu.com>
To: linux-mm <linux-mm@kvack.org>,
Linux Kernel ML <linux-kernel@vger.kernel.org>,
Linux Hotplug Memory Support <lhms-devel@lists.sourceforge.net>
Cc: Joel Schopp <jschopp@austin.ibm.com>
Subject: [Patch] New zone ZONE_EASY_RECLAIM take 4. (define gfp_easy_relcaim)[1/8]
Date: Tue, 20 Dec 2005 17:52:08 +0900 [thread overview]
Message-ID: <20051220172720.1B08.Y-GOTO@jp.fujitsu.com> (raw)
This defines __GFP flag for new zone (with GFP_DMA32).
take3 -> take 4:
take 3's modification was not enough.
__GFP_DMA32 is moved from 0x04 to 0x02 when it has own number
to make it easier.
__GFP_HIGHMEM and __GFP_EASY_RECLAIM become fixed value.
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Index: zone_reclaim/include/linux/gfp.h
===================================================================
--- zone_reclaim.orig/include/linux/gfp.h 2005-12-16 11:28:15.000000000 +0900
+++ zone_reclaim/include/linux/gfp.h 2005-12-19 20:20:51.000000000 +0900
@@ -11,17 +11,21 @@ struct vm_area_struct;
/*
* GFP bitmasks..
*/
-/* Zone modifiers in GFP_ZONEMASK (see linux/mmzone.h - low three bits) */
+/* Zone modifiers in GFP_ZONEMASK (see linux/mmzone.h - low four bits) */
#define __GFP_DMA ((__force gfp_t)0x01u)
-#define __GFP_HIGHMEM ((__force gfp_t)0x02u)
+
#ifdef CONFIG_DMA_IS_DMA32
#define __GFP_DMA32 ((__force gfp_t)0x01) /* ZONE_DMA is ZONE_DMA32 */
#elif BITS_PER_LONG < 64
#define __GFP_DMA32 ((__force gfp_t)0x00) /* ZONE_NORMAL is ZONE_DMA32 */
#else
-#define __GFP_DMA32 ((__force gfp_t)0x04) /* Has own ZONE_DMA32 */
+#define __GFP_DMA32 ((__force gfp_t)0x02) /* Has own ZONE_DMA32 */
#endif
+#define __GFP_HIGHMEM ((__force gfp_t)0x04u)
+#define __GFP_EASY_RECLAIM ((__force gfp_t)0x08u)
+
+
/*
* Action modifiers - doesn't change the zoning
*
@@ -64,7 +68,7 @@ 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 2005-12-16 11:28:15.000000000 +0900
+++ zone_reclaim/include/linux/mmzone.h 2005-12-19 20:16:29.000000000 +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
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
reply other threads:[~2005-12-20 8:52 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20051220172720.1B08.Y-GOTO@jp.fujitsu.com \
--to=y-goto@jp.fujitsu.com \
--cc=jschopp@austin.ibm.com \
--cc=lhms-devel@lists.sourceforge.net \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox