From: akpm@osdl.org
To: torvalds@osdl.org
Cc: linux-mm@kvack.org, akpm@osdl.org, hugh@veritas.com
Subject: [patch 36/57] vm_area_struct size comment
Date: Sat, 22 May 2004 15:10:09 -0700 [thread overview]
Message-ID: <200405222210.i4MMAdr13921@mail.osdl.org> (raw)
From: Hugh Dickins <hugh@veritas.com>
Missed comment on the size of vm_area_struct: it is no longer 64 bytes on
ia32.
---
25-akpm/include/linux/mm.h | 7 -------
1 files changed, 7 deletions(-)
diff -puN include/linux/mm.h~vm_area_struct-size-comment include/linux/mm.h
--- 25/include/linux/mm.h~vm_area_struct-size-comment 2004-05-22 14:56:27.278944496 -0700
+++ 25-akpm/include/linux/mm.h 2004-05-22 14:59:38.317902160 -0700
@@ -47,13 +47,6 @@ extern int page_cluster;
* per VM-area/task. A VM area is any part of the process virtual memory
* space that has a special rule for the page-fault handlers (ie a shared
* library, the executable area etc).
- *
- * This structure is exactly 64 bytes on ia32. Please think very, very hard
- * before adding anything to it.
- * [Now 4 bytes more on 32bit NUMA machines. Sorry. -AK.
- * But if you want to recover the 4 bytes justr remove vm_next. It is redundant
- * with vm_rb. Will be a lot of editing work though. vm_rb.color is redundant
- * too.]
*/
struct vm_area_struct {
struct mm_struct * vm_mm; /* The address space we belong to. */
_
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reply other threads:[~2004-05-22 22:10 UTC|newest]
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