linux-kernel - [PATCH 4/5] parisc: use new macro for .data.read

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Message-Id: <1241135719-9286-5-git-send-email-tabbott@mit.edu>
Date:	Thu, 30 Apr 2009 19:55:18 -0400
From:	Tim Abbott <tabbott@....EDU>
To:	Sam Ravnborg <sam@...nborg.org>
Cc:	Linux kernel mailing list <linux-kernel@...r.kernel.org>,
	Anders Kaseorg <andersk@....edu>,
	Waseem Daher <wdaher@....edu>,
	Denys Vlasenko <vda.linux@...glemail.com>,
	Jeff Arnold <jbarnold@....edu>,
	Kyle McMartin <kyle@...artin.ca>, Helge Deller <deller@....de>,
	linux-parisc@...r.kernel.org, Tim Abbott <tabbott@....edu>
Subject: [PATCH 4/5] parisc: use new macro for .data.read_mostly section.

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

I used alignment L1_CACHE_BYTES instead of 16 since the whole point is
for read-mostly data to have different cache lines than other stuff.

Signed-off-by: Tim Abbott <tabbott@....edu>
Cc: Kyle McMartin <kyle@...artin.ca>
Cc: Helge Deller <deller@....de>
Cc: linux-parisc@...r.kernel.org
---
 arch/parisc/kernel/vmlinux.lds.S |    8 +-------
 1 files changed, 1 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index c8a528d..3176407 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -94,19 +94,13 @@ SECTIONS
 		__stop___unwind = .;
 	}
 
-	/* rarely changed data like cpu maps */
-	. = ALIGN(16);
-	.data.read_mostly : {
-		*(.data.read_mostly)
-	}
-
-	. = ALIGN(L1_CACHE_BYTES);
 	/* Data */
 	.data : {
 		/* assembler code expects init_task to be 16k aligned */
 		INIT_TASK_DATA(16384)
 		NOSAVE_DATA
 		CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
+		READ_MOSTLY_DATA(L1_CACHE_BYTES)
 		DATA_DATA
 		CONSTRUCTORS
 	}
-- 
1.6.2.1

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