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Subject[tip:x86/platform] x86: xen: Cleanup and remove x86_init.paging. pagetable_setup_done()
Commit-ID:  c711288727a62f74d48032e56e51333dd104bf58
Gitweb: http://git.kernel.org/tip/c711288727a62f74d48032e56e51333dd104bf58
Author: Attilio Rao <attilio.rao@citrix.com>
AuthorDate: Tue, 21 Aug 2012 21:22:40 +0100
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Wed, 12 Sep 2012 15:33:06 +0200

x86: xen: Cleanup and remove x86_init.paging.pagetable_setup_done()

At this stage x86_init.paging.pagetable_setup_done is only used in the
XEN case. Move its content in the x86_init.paging.pagetable_init setup
function and remove the now unused x86_init.paging.pagetable_setup_done
remaining infrastructure.

Signed-off-by: Attilio Rao <attilio.rao@citrix.com>
Acked-by: <konrad.wilk@oracle.com>
Cc: <Ian.Campbell@citrix.com>
Cc: <Stefano.Stabellini@eu.citrix.com>
Cc: <xen-devel@lists.xensource.com>
Link: http://lkml.kernel.org/r/1345580561-8506-5-git-send-email-attilio.rao@citrix.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/x86/include/asm/pgtable_types.h | 2 --
arch/x86/include/asm/x86_init.h | 2 --
arch/x86/kernel/setup.c | 1 -
arch/x86/kernel/x86_init.c | 2 --
arch/x86/mm/init_32.c | 4 ----
arch/x86/xen/mmu.c | 13 ++++---------
6 files changed, 4 insertions(+), 20 deletions(-)

diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index c93cb8e..db8fec6 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -304,10 +304,8 @@ void set_pte_vaddr(unsigned long vaddr, pte_t pte);
extern void native_pagetable_reserve(u64 start, u64 end);
#ifdef CONFIG_X86_32
extern void native_pagetable_init(void);
-extern void native_pagetable_setup_done(pgd_t *base);
#else
#define native_pagetable_init paging_init
-#define native_pagetable_setup_done x86_init_pgd_done_noop
#endif

struct seq_file;
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 24084b2..995ea5c 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -82,11 +82,9 @@ struct x86_init_mapping {
/**
* struct x86_init_paging - platform specific paging functions
* @pagetable_init: platform specific paging initialization call
- * @pagetable_setup_done: platform specific post paging_init() call
*/
struct x86_init_paging {
void (*pagetable_init)(void);
- void (*pagetable_setup_done)(pgd_t *base);
};

/**
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 315fd24..4f16547 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();
- x86_init.paging.pagetable_setup_done(swapper_pg_dir);

if (boot_cpu_data.cpuid_level >= 0) {
/* A CPU has %cr4 if and only if it has CPUID */
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 5f2478f..7a3d075 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_done_noop(pgd_t *unused) { }
int __init iommu_init_noop(void) { return 0; }
void iommu_shutdown_noop(void) { }

@@ -69,7 +68,6 @@ struct x86_init_ops x86_init __initdata = {

.paging = {
.pagetable_init = native_pagetable_init,
- .pagetable_setup_done = native_pagetable_setup_done,
},

.timers = {
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index e35b4b1..4f04db1 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -478,10 +478,6 @@ void __init native_pagetable_init(void)
paging_init();
}

-void __init native_pagetable_setup_done(pgd_t *base)
-{
-}
-
/*
* Build a proper pagetable for the kernel mappings. Up until this
* point, we've been running on some set of pagetables constructed by
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index c2ff7ea..7a769b7 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -1174,9 +1174,13 @@ static void xen_exit_mmap(struct mm_struct *mm)
spin_unlock(&mm->page_table_lock);
}

+static void xen_post_allocator_init(void);
+
static void __init xen_pagetable_init(void)
{
paging_init();
+ xen_setup_shared_info();
+ xen_post_allocator_init();
}

static __init void xen_mapping_pagetable_reserve(u64 start, u64 end)
@@ -1193,14 +1197,6 @@ static __init void xen_mapping_pagetable_reserve(u64 start, u64 end)
}
}

-static void xen_post_allocator_init(void);
-
-static void __init xen_pagetable_setup_done(pgd_t *base)
-{
- xen_setup_shared_info();
- xen_post_allocator_init();
-}
-
static void xen_write_cr2(unsigned long cr2)
{
this_cpu_read(xen_vcpu)->arch.cr2 = cr2;
@@ -2070,7 +2066,6 @@ void __init xen_init_mmu_ops(void)
{
x86_init.mapping.pagetable_reserve = xen_mapping_pagetable_reserve;
x86_init.paging.pagetable_init = xen_pagetable_init;
- x86_init.paging.pagetable_setup_done = xen_pagetable_setup_done;
pv_mmu_ops = xen_mmu_ops;

memset(dummy_mapping, 0xff, PAGE_SIZE);

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