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* [PATCH -mm 1/3 -v3] kexec/i386: remove PAGE_SIZE alignment from relocate_kernel
@ 2008-10-30  8:17 Huang Ying
  0 siblings, 0 replies; only message in thread
From: Huang Ying @ 2008-10-30  8:17 UTC (permalink / raw)
  To: Eric W. Biederman, Vivek Goyal, Andrew Morton, Simon Horman,
	Ian Campbell, Magnus Damm
  Cc: linux-kernel, kexec

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This patch removes PAGE_SIZE alignment from relocate_kernel(). Before
kexec jump patches are merged, control page is mapped to
relocate_kernel in kexec page tables, so relocate_kernel must be
PAGE_SIZE aligned. Now, control page is mapped to identity mapped
address, so relocate_kernel need not to be PAGE_SIZE aligned any
more. This can reduce a few KB from kernel text segement.

Signed-off-by: Huang Ying <ying.huang@intel.com>

---
 arch/x86/kernel/relocate_kernel_32.S |    1 -
 1 file changed, 1 deletion(-)

--- a/arch/x86/kernel/relocate_kernel_32.S
+++ b/arch/x86/kernel/relocate_kernel_32.S
@@ -39,7 +39,6 @@
 #define CP_PA_BACKUP_PAGES_MAP	DATA(0x1c)
 
 	.text
-	.align PAGE_SIZE
 	.globl relocate_kernel
 relocate_kernel:
 	/* Save the CPU context, used for jumping back */


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