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From: Tim Abbott <tabbott@MIT.EDU>
To: Sam Ravnborg <sam@ravnborg.org>
Cc: Linux kernel mailing list <linux-kernel@vger.kernel.org>,
	Anders Kaseorg <andersk@MIT.EDU>, Waseem Daher <wdaher@MIT.EDU>,
	Denys Vlasenko <vda.linux@googlemail.com>,
	Jeff Arnold <jbarnold@MIT.EDU>, Ingo Molnar <mingo@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>, Tim Abbott <tabbott@MIT.EDU>
Subject: [PATCH 07/11] x86: use new macro for .data.cacheline_aligned section.
Date: Thu, 30 Apr 2009 20:01:34 -0400	[thread overview]
Message-ID: <1241136098-10376-8-git-send-email-tabbott@mit.edu> (raw)
In-Reply-To: <1241136098-10376-7-git-send-email-tabbott@mit.edu>

.data.cacheline_aligned should not need a separate output section;
this change moves it into the .data section.

This removes the extra ALIGN(PAGE_SIZE) before the cache-aligned data
on x86_32, since I don't see a purpose for it.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Ingo Molnar <mingo@redhat.com>
---
 arch/x86/kernel/vmlinux.lds.S |   16 +++++-----------
 1 files changed, 5 insertions(+), 11 deletions(-)

diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 88b059b..c7d54bf 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -104,6 +104,11 @@ SECTIONS
 	.data : AT(ADDR(.data) - LOAD_OFFSET) {
 		PAGE_ALIGNED_DATA
 		NOSAVE_DATA
+#ifdef CONFIG_X86_32
+		CACHELINE_ALIGNED_DATA(32)
+#else
+		CACHELINE_ALIGNED_DATA(CONFIG_X86_L1_CACHE_BYTES)
+#endif
 		DATA_DATA
 		CONSTRUCTORS
 
@@ -113,17 +118,6 @@ SECTIONS
 #endif
 	} :data
 
-#ifdef CONFIG_X86_32
-	. = ALIGN(32);
-#else
-	. = ALIGN(PAGE_SIZE);
-	. = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
-#endif
-	.data.cacheline_aligned :
-		AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
-		*(.data.cacheline_aligned)
-	}
-
 	/* rarely changed data like cpu maps */
 #ifdef CONFIG_X86_32
 	. = ALIGN(32);
-- 
1.6.2.1


  reply	other threads:[~2009-05-01  0:11 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-01  0:01 [PATCH 00/11] section name cleanup for x86 Tim Abbott
2009-05-01  0:01 ` [PATCH 01/11] x86: Use macros for .bss.page_aligned section Tim Abbott
2009-05-01  0:01   ` [PATCH 02/11] x86: Use section .data.page_aligned for the idt_table Tim Abbott
2009-05-01  0:01     ` [PATCH 03/11] x86: Use macros for .data.page_aligned Tim Abbott
2009-05-01  0:01       ` [PATCH 04/11] x86: convert compressed loader to use __HEAD and HEAD_TEXT macros Tim Abbott
2009-05-01  0:01         ` [PATCH 05/11] x86: convert " Tim Abbott
2009-05-01  0:01           ` [PATCH 06/11] x86: use NOSAVE_DATA macro for .data.nosave section Tim Abbott
2009-05-01  0:01             ` Tim Abbott [this message]
2009-05-01  0:01               ` [PATCH 08/11] x86: use new macros for .data.init_task Tim Abbott
2009-05-01  0:01                 ` [PATCH 09/11] x86: fix fragile computation of vsyscall address Tim Abbott
2009-05-01  0:01                   ` [PATCH 10/11] x86: use new macro for .data.read_mostly section Tim Abbott
2009-05-01  0:01                     ` [PATCH 11/11] x86: convert to new generic read_mostly support Tim Abbott
2009-05-06 16:19       ` [PATCH 03/11] x86: Use macros for .data.page_aligned H. Peter Anvin
2009-05-01 11:58 ` [PATCH 00/11] section name cleanup for x86 Ingo Molnar
2009-05-01 12:07   ` Sam Ravnborg
2009-05-01 15:34     ` Ingo Molnar
2009-05-01 16:31     ` H. Peter Anvin

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