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authorHeiko Carstens <heiko.carstens@de.ibm.com>2008-11-27 05:05:58 -0500
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2008-11-27 05:06:58 -0500
commit0778dc3a624b48cf80072b04405cacd1ad4079be (patch)
tree823b35f2c4947e32f4fa622c64904490f3f6f096 /arch
parent2944a5c971c12766e2438ea407ec3567949c32b7 (diff)
[S390] Fix alignment of initial kernel stack.
We need an alignment of 16384 bytes for the initial kernel stack if the kernel is configured for 16384 bytes stacks but the linker script currently guarantees only an alignment of 8192 bytes. So fix this and simply use THREAD_SIZE as alignment value which will always do the right thing. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/kernel/init_task.c2
-rw-r--r--arch/s390/kernel/vmlinux.lds.S3
2 files changed, 3 insertions, 2 deletions
diff --git a/arch/s390/kernel/init_task.c b/arch/s390/kernel/init_task.c
index 7ad00396925..e8071684361 100644
--- a/arch/s390/kernel/init_task.c
+++ b/arch/s390/kernel/init_task.c
@@ -26,7 +26,7 @@ EXPORT_SYMBOL(init_mm);
26/* 26/*
27 * Initial thread structure. 27 * Initial thread structure.
28 * 28 *
29 * We need to make sure that this is 8192-byte aligned due to the 29 * We need to make sure that this is THREAD_SIZE aligned due to the
30 * way process stacks are handled. This is done by having a special 30 * way process stacks are handled. This is done by having a special
31 * "init_task" linker map entry.. 31 * "init_task" linker map entry..
32 */ 32 */
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 607bd67a18c..d796d05c9c0 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -2,6 +2,7 @@
2 * Written by Martin Schwidefsky (schwidefsky@de.ibm.com) 2 * Written by Martin Schwidefsky (schwidefsky@de.ibm.com)
3 */ 3 */
4 4
5#include <asm/thread_info.h>
5#include <asm/page.h> 6#include <asm/page.h>
6#include <asm-generic/vmlinux.lds.h> 7#include <asm-generic/vmlinux.lds.h>
7 8
@@ -86,7 +87,7 @@ SECTIONS
86 } 87 }
87 _edata = .; /* End of data section */ 88 _edata = .; /* End of data section */
88 89
89 . = ALIGN(2 * PAGE_SIZE); /* init_task */ 90 . = ALIGN(THREAD_SIZE); /* init_task */
90 .data.init_task : { 91 .data.init_task : {
91 *(.data.init_task) 92 *(.data.init_task)
92 } 93 }