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Commit bb693f13 authored by Matthew Wilcox's avatar Matthew Wilcox Committed by Thomas Gleixner
Browse files

x86: Remove set_pmd_pfn 



The last user of set_pmd_pfn() went away in commit f03574f2, so this
has been dead code for over a year.

Signed-off-by: default avatarMatthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>

 arch/x86/include/asm/pgtable_32.h |    3 ---
 arch/x86/mm/pgtable_32.c          |   35 -----------------------------------
 2 files changed, 38 deletions(-)
parent 69e273c0

arch/x86/include/asm/pgtable_32.h

+0 −3
Original line number Diff line number Diff line
@@ -32,9 +32,6 @@ static inline void pgtable_cache_init(void) { } 
static inline void check_pgt_cache(void) { }

void paging_init(void);



extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);





/*

 * Define this if things work differently on an i386 and an i486:

 * it will (on an i486) warn about kernel memory accesses that are

arch/x86/mm/pgtable_32.c

+0 −35
Original line number Diff line number Diff line
@@ -59,41 +59,6 @@ void set_pte_vaddr(unsigned long vaddr, pte_t pteval) 
	__flush_tlb_one(vaddr);

}



/*

 * Associate a large virtual page frame with a given physical page frame 

 * and protection flags for that frame. pfn is for the base of the page,

 * vaddr is what the page gets mapped to - both must be properly aligned. 

 * The pmd must already be instantiated. Assumes PAE mode.

 */ 

void set_pmd_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags)

{

	pgd_t *pgd;

	pud_t *pud;

	pmd_t *pmd;



	if (vaddr & (PMD_SIZE-1)) {		/* vaddr is misaligned */

		printk(KERN_WARNING "set_pmd_pfn: vaddr misaligned\n");

		return; /* BUG(); */

	}

	if (pfn & (PTRS_PER_PTE-1)) {		/* pfn is misaligned */

		printk(KERN_WARNING "set_pmd_pfn: pfn misaligned\n");

		return; /* BUG(); */

	}

	pgd = swapper_pg_dir + pgd_index(vaddr);

	if (pgd_none(*pgd)) {

		printk(KERN_WARNING "set_pmd_pfn: pgd_none\n");

		return; /* BUG(); */

	}

	pud = pud_offset(pgd, vaddr);

	pmd = pmd_offset(pud, vaddr);

	set_pmd(pmd, pfn_pmd(pfn, flags));

	/*

	 * It's enough to flush this one mapping.

	 * (PGE mappings get flushed as well)

	 */

	__flush_tlb_one(vaddr);

}



unsigned long __FIXADDR_TOP = 0xfffff000;

EXPORT_SYMBOL(__FIXADDR_TOP);