The patch titled
kexec/i386: remove PAGE_SIZE alignment from relocate_kernel
has been added to the -mm tree. Its filename is
kexec-i386-remove-page_size-alignment-from-relocate_kernel.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: kexec/i386: remove PAGE_SIZE alignment from relocate_kernel
From: Huang Ying <ying.huang@xxxxxxxxx>
Remove the 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@xxxxxxxxx>
Reviewed-by: Simon Horman <horms@xxxxxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Cc: Vivek Goyal <vgoyal@xxxxxxxxxx>
Cc: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
Cc: Magnus Damm <magnus.damm@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/kernel/relocate_kernel_32.S | 1 -
1 file changed, 1 deletion(-)
diff -puN arch/x86/kernel/relocate_kernel_32.S~kexec-i386-remove-page_size-alignment-from-relocate_kernel arch/x86/kernel/relocate_kernel_32.S
--- a/arch/x86/kernel/relocate_kernel_32.S~kexec-i386-remove-page_size-alignment-from-relocate_kernel
+++ a/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 */
_
Patches currently in -mm which might be from ying.huang@xxxxxxxxx are
kexec-i386-remove-page_size-alignment-from-relocate_kernel.patch
kexec-i386-allocate-page-table-pages-dynamically.patch
kexec-i386-setup-kexec-page-table-in-c.patch
atomic_t-unify-all-arch-definitions.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
