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powerpc: Use RCU based pte freeing mechanism for all powerpc

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Refactor the RCU based pte free code that was used on ppc64 to be used
on all powerpc.

Additionally refactor pte_free() & pte_free_kernel() into common code
between ppc32 & ppc64.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Kumar Gala
2008-11-19 12:50:04 +00:00
committed by Paul Mackerras
parent df3b861155
commit 0186f47e70
8 changed files with 167 additions and 175 deletions
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21
arch/powerpc/mm/pgtable_32.c
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@ -48,10 +48,6 @@ EXPORT_SYMBOL(ioremap_bot); /* aka VMALLOC_END */
extern char etext[], _stext[];
#if defined(CONFIG_SMP) && defined(CONFIG_PPC_STD_MMU_32)
extern void hash_page_sync(void);
#endif
#ifdef HAVE_BATS
extern phys_addr_t v_mapped_by_bats(unsigned long va);
extern unsigned long p_mapped_by_bats(phys_addr_t pa);
@ -125,23 +121,6 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
return ptepage;
}
void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
{
#if defined(CONFIG_SMP) && defined(CONFIG_PPC_STD_MMU_32)
hash_page_sync();
#endif
free_page((unsigned long)pte);
}
void pte_free(struct mm_struct *mm, pgtable_t ptepage)
{
#if defined(CONFIG_SMP) && defined(CONFIG_PPC_STD_MMU_32)
hash_page_sync();
#endif
pgtable_page_dtor(ptepage);
__free_page(ptepage);
}
void __iomem *
ioremap(phys_addr_t addr, unsigned long size)
{