linux-kernel - [tip:x86/platform] x86: Move paging_init() call to x86_init.paging .pagetable

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Date:	Wed, 12 Sep 2012 06:48:29 -0700
From:	tip-bot for Attilio Rao <attilio.rao@...rix.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	konrad.wilk@...cle.com, Stefano.Stabellini@...citrix.com,
	Ian.Campbell@...rix.com, tglx@...utronix.de,
	attilio.rao@...rix.com, xen-devel@...ts.xensource.com
Subject: [tip:x86/platform] x86: Move paging_init() call to x86_init.paging
 .pagetable_init()

Commit-ID:  843b8ed2ec598aae5e3516b21957ede62a070e36
Gitweb:     http://git.kernel.org/tip/843b8ed2ec598aae5e3516b21957ede62a070e36
Author:     Attilio Rao <attilio.rao@...rix.com>
AuthorDate: Tue, 21 Aug 2012 21:22:39 +0100
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Wed, 12 Sep 2012 15:33:06 +0200

x86: Move paging_init() call to x86_init.paging.pagetable_init()

Move the paging_init() call to the platform specific pagetable_init()
function, so we can get rid of the extra pagetable_setup_done()
function pointer.

Signed-off-by: Attilio Rao <attilio.rao@...rix.com>
Acked-by: <konrad.wilk@...cle.com>
Cc: <Ian.Campbell@...rix.com>
Cc: <Stefano.Stabellini@...citrix.com>
Cc: <xen-devel@...ts.xensource.com>
Link: http://lkml.kernel.org/r/1345580561-8506-4-git-send-email-attilio.rao@citrix.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 arch/x86/include/asm/pgtable_types.h |    2 +-
 arch/x86/kernel/setup.c              |    1 -
 arch/x86/kernel/x86_init.c           |    1 -
 arch/x86/mm/init_32.c                |    1 +
 arch/x86/xen/mmu.c                   |    1 +
 5 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index 0c01e07..c93cb8e 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -306,7 +306,7 @@ extern void native_pagetable_reserve(u64 start, u64 end);
 extern void native_pagetable_init(void);
 extern void native_pagetable_setup_done(pgd_t *base);
 #else
-#define native_pagetable_init        x86_init_pgd_init_noop
+#define native_pagetable_init        paging_init
 #define native_pagetable_setup_done  x86_init_pgd_done_noop
 #endif
 
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 61b7d98..315fd24 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -962,7 +962,6 @@ void __init setup_arch(char **cmdline_p)
 #endif
 
 	x86_init.paging.pagetable_init();
-	paging_init();
 	x86_init.paging.pagetable_setup_done(swapper_pg_dir);
 
 	if (boot_cpu_data.cpuid_level >= 0) {
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 0e1e950..5f2478f 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -26,7 +26,6 @@
 
 void __cpuinit x86_init_noop(void) { }
 void __init x86_init_uint_noop(unsigned int unused) { }
-void __init x86_init_pgd_init_noop(void) { }
 void __init x86_init_pgd_done_noop(pgd_t *unused) { }
 int __init iommu_init_noop(void) { return 0; }
 void iommu_shutdown_noop(void) { }
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 0e38e0e..e35b4b1 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -475,6 +475,7 @@ void __init native_pagetable_init(void)
 		pte_clear(NULL, va, pte);
 	}
 	paravirt_alloc_pmd(&init_mm, __pa(base) >> PAGE_SHIFT);
+	paging_init();
 }
 
 void __init native_pagetable_setup_done(pgd_t *base)
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 624efbe..c2ff7ea 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -1176,6 +1176,7 @@ static void xen_exit_mmap(struct mm_struct *mm)
 
 static void __init xen_pagetable_init(void)
 {
+	paging_init();
 }
 
 static __init void xen_mapping_pagetable_reserve(u64 start, u64 end)
--
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