linux-kernel - [tip:x86/urgent] x86-64: Make early_pmd_flags _

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Date:	Mon, 20 May 2013 11:42:05 -0700
From:	"tip-bot for H. Peter Anvin" <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	torvalds@...ux-foundation.org, tglx@...utronix.de, mhocko@...e.cz,
	hpa@...ux.intel.com
Subject: [tip:x86/urgent] x86-64: Make early_pmd_flags __cpuinitdata

Commit-ID:  03762e92774e216bfad2e0c0e2f1cb581cfab632
Gitweb:     http://git.kernel.org/tip/03762e92774e216bfad2e0c0e2f1cb581cfab632
Author:     H. Peter Anvin <hpa@...ux.intel.com>
AuthorDate: Mon, 20 May 2013 11:30:16 -0700
Committer:  H. Peter Anvin <hpa@...ux.intel.com>
CommitDate: Mon, 20 May 2013 11:36:46 -0700

x86-64: Make early_pmd_flags __cpuinitdata

Although early_pmd_flags is not actually *used* except at init time, it
is *set* in secondary_startup_64, which is executed on any CPU
startup, including hotplug and S3 resume.

Reported-and-tested-by: Michal Hocko <mhocko@...e.cz>
Debugged-by: Linus Torvalds <torvalds@...ux-foundation.org>
Link: http://lkml.kernel.org/r/20130520182306.GA5348@dhcp22.suse.cz
Cc: <stable@...r.kernel.org> v3.9
---
 arch/x86/kernel/head64.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index dab95a8..aa67bdd 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -34,7 +34,8 @@
 extern pgd_t early_level4_pgt[PTRS_PER_PGD];
 extern pmd_t early_dynamic_pgts[EARLY_DYNAMIC_PAGE_TABLES][PTRS_PER_PMD];
 static unsigned int __initdata next_early_pgt = 2;
-pmdval_t __initdata early_pmd_flags = __PAGE_KERNEL_LARGE & ~(_PAGE_GLOBAL | _PAGE_NX);
+pmdval_t __cpuinitdata early_pmd_flags =
+	__PAGE_KERNEL_LARGE & ~(_PAGE_GLOBAL | _PAGE_NX);
 
 /* Wipe all early page tables except for the kernel symbol map */
 static void __init reset_early_page_tables(void)
--
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