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From: Wu Fengguang <fengguang.wu@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Wu Fengguang <fengguang.wu@intel.com>,
	Matt Mackall <mpm@selenic.com>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Andi Kleen <andi@firstfloor.org>,
	linux-mm@kvack.org
Subject: [PATCH 5/8] pagemap: document clarifications
Date: Fri, 08 May 2009 18:53:25 +0800	[thread overview]
Message-ID: <20090508111031.354583236@intel.com> (raw)
In-Reply-To: 20090508105320.316173813@intel.com

[-- Attachment #1: kpageflags-doc-fix.patch --]
[-- Type: text/plain, Size: 1402 bytes --]

Some bit ranges were inclusive and some not.
Fix them to be consistently inclusive.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
---
 Documentation/vm/pagemap.txt |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- linux.orig/Documentation/vm/pagemap.txt
+++ linux/Documentation/vm/pagemap.txt
@@ -12,9 +12,9 @@ There are three components to pagemap:
    value for each virtual page, containing the following data (from
    fs/proc/task_mmu.c, above pagemap_read):
 
-    * Bits 0-55  page frame number (PFN) if present
+    * Bits 0-54  page frame number (PFN) if present
     * Bits 0-4   swap type if swapped
-    * Bits 5-55  swap offset if swapped
+    * Bits 5-54  swap offset if swapped
     * Bits 55-60 page shift (page size = 1<<page shift)
     * Bit  61    reserved for future use
     * Bit  62    page swapped
@@ -36,7 +36,7 @@ There are three components to pagemap:
  * /proc/kpageflags.  This file contains a 64-bit set of flags for each
    page, indexed by PFN.
 
-   The flags are (from fs/proc/proc_misc, above kpageflags_read):
+   The flags are (from fs/proc/page.c, above kpageflags_read):
 
      0. LOCKED
      1. ERROR

-- 

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  parent reply	other threads:[~2009-05-08 11:12 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-08 10:53 [PATCH 0/8] export more page flags in /proc/kpageflags (take 6) Wu Fengguang
2009-05-08 10:53 ` [PATCH 1/8] mm: introduce PageHuge() for testing huge/gigantic pages Wu Fengguang
2009-05-08 11:40   ` Ingo Molnar
2009-05-08 12:21     ` Wu Fengguang
2009-05-13 17:05   ` Mel Gorman
2009-05-17 13:09     ` Wu Fengguang
2009-05-08 10:53 ` [PATCH 2/8] slob: use PG_slab for identifying SLOB pages Wu Fengguang
2009-05-08 10:53 ` [PATCH 3/8] proc: kpagecount/kpageflags code cleanup Wu Fengguang
2009-05-08 10:53 ` [PATCH 4/8] proc: export more page flags in /proc/kpageflags Wu Fengguang
2009-05-08 11:47   ` Ingo Molnar
2009-05-08 12:44     ` Wu Fengguang
2009-05-09  5:59       ` Ingo Molnar
2009-05-09  7:56         ` Wu Fengguang
2009-05-09  6:27       ` [patch] tracing/mm: add page frame snapshot trace Ingo Molnar
2009-05-09  9:13         ` Wu Fengguang
2009-05-09  9:24           ` Ingo Molnar
2009-05-09  9:43             ` Wu Fengguang
2009-05-09 10:22               ` Ingo Molnar
2009-05-09 10:45                 ` Wu Fengguang
2009-05-09 10:01           ` Ingo Molnar
2009-05-09 10:27             ` Ingo Molnar
2009-05-09 10:57             ` Wu Fengguang
2009-05-09 11:05               ` Ingo Molnar
2009-05-09 12:23                 ` Wu Fengguang
2009-05-09 14:05                   ` Ingo Molnar
2009-05-10  8:35                     ` Wu Fengguang
2009-05-11 12:01                       ` Ingo Molnar
2009-05-09 10:36           ` Ingo Molnar
2009-05-08 12:58     ` ftrace: concurrent accesses possible? Wu Fengguang
2009-05-08 13:17       ` Steven Rostedt
2009-05-08 13:43         ` Wu Fengguang
2009-05-08 20:24     ` [PATCH 4/8] proc: export more page flags in /proc/kpageflags Andrew Morton
2009-05-09 10:44       ` Ingo Molnar
2009-05-10  3:58         ` Andrew Morton
2009-05-10  5:26         ` Andrew Morton
2009-05-11 11:45           ` Ingo Molnar
2009-05-11 18:31             ` Andrew Morton
2009-05-11 22:08               ` Ingo Molnar
2009-05-11 19:03             ` Andy Isaacson
2009-05-08 10:53 ` Wu Fengguang [this message]
2009-05-08 10:53 ` [PATCH 6/8] pagemap: document 9 more exported page flags Wu Fengguang
2009-05-09  8:13   ` KOSAKI Motohiro
2009-05-09  8:18     ` Wu Fengguang
2009-05-08 10:53 ` [PATCH 7/8] pagemap: add page-types tool Wu Fengguang
2009-05-08 10:53 ` [PATCH 8/8] pagemap: export PG_hwpoison Wu Fengguang
2009-05-08 11:49   ` Ingo Molnar

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