From: Jeremy Fitzhardinge <jeremy@goop.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [PATCH] x86: add RESERVE_BRK_ARRAY() helper
Date: Thu, 02 Sep 2010 19:35:22 -0700 [thread overview]
Message-ID: <4C805EEA.1080205@goop.org> (raw)
[-- Attachment #1: Type: text/plain, Size: 648 bytes --]
Useful when converting static arrays into boot-time brk allocated objects.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index 4093d1e..632cafd 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -126,6 +126,11 @@ void *extend_brk(size_t size, size_t align);
: : "i" (sz)); \
}
+/* Helper for reserving space for arrays of things */
+#define RESERVE_BRK_ARRAY(type, name, entries) \
+ type *name; \
+ RESERVE_BRK(name, sizeof(type) * entries)
+
#ifdef __i386__
void __init i386_start_kernel(void);
[-- Attachment #2: x86-brk-array.patch --]
[-- Type: text/plain, Size: 865 bytes --]
From 900d977e6ce004c59b986a494838daddecbe106a Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Date: Thu, 26 Aug 2010 15:31:36 -0700
Subject: [PATCH] x86: add RESERVE_BRK_ARRAY() helper
Useful when converting static arrays into boottime brk allocated objects.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index 4093d1e..632cafd 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -126,6 +126,11 @@ void *extend_brk(size_t size, size_t align);
: : "i" (sz)); \
}
+/* Helper for reserving space for arrays of things */
+#define RESERVE_BRK_ARRAY(type, name, entries) \
+ type *name; \
+ RESERVE_BRK(name, sizeof(type) * entries)
+
#ifdef __i386__
void __init i386_start_kernel(void);
next reply other threads:[~2010-09-03 2:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-03 2:35 Jeremy Fitzhardinge [this message]
2010-10-06 6:04 ` [tip:x86/mm] x86, mm: Add RESERVE_BRK_ARRAY() helper tip-bot for Jeremy Fitzhardinge
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