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powerpc/mm: Rename function to indicate we are allocating fragments
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Only code cleanup. No functionality change.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Aneesh Kumar K.V authored and Michael Ellerman committed May 11, 2016
1 parent bcbe7f7 commit 74701d5
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Showing 3 changed files with 16 additions and 29 deletions.
12 changes: 6 additions & 6 deletions arch/powerpc/include/asm/book3s/64/pgalloc.h
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Original file line number Diff line number Diff line change
Expand Up @@ -174,8 +174,8 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,

#else /* if CONFIG_PPC_64K_PAGES */

extern pte_t *page_table_alloc(struct mm_struct *, unsigned long, int);
extern void page_table_free(struct mm_struct *, unsigned long *, int);
extern pte_t *pte_fragment_alloc(struct mm_struct *, unsigned long, int);
extern void pte_fragment_free(unsigned long *, int);
extern void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift);
#ifdef CONFIG_SMP
extern void __tlb_remove_table(void *_table);
Expand All @@ -195,23 +195,23 @@ static inline pgtable_t pmd_pgtable(pmd_t pmd)
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address)
{
return (pte_t *)page_table_alloc(mm, address, 1);
return (pte_t *)pte_fragment_alloc(mm, address, 1);
}

static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
unsigned long address)
{
return (pgtable_t)page_table_alloc(mm, address, 0);
return (pgtable_t)pte_fragment_alloc(mm, address, 0);
}

static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
{
page_table_free(mm, (unsigned long *)pte, 1);
pte_fragment_free((unsigned long *)pte, 1);
}

static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
{
page_table_free(mm, (unsigned long *)ptepage, 0);
pte_fragment_free((unsigned long *)ptepage, 0);
}

static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
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12 changes: 6 additions & 6 deletions arch/powerpc/include/asm/nohash/64/pgalloc.h
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Original file line number Diff line number Diff line change
Expand Up @@ -164,8 +164,8 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,

#else /* if CONFIG_PPC_64K_PAGES */

extern pte_t *page_table_alloc(struct mm_struct *, unsigned long, int);
extern void page_table_free(struct mm_struct *, unsigned long *, int);
extern pte_t *pte_fragment_alloc(struct mm_struct *, unsigned long, int);
extern void pte_fragment_free(unsigned long *, int);
extern void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift);
#ifdef CONFIG_SMP
extern void __tlb_remove_table(void *_table);
Expand Down Expand Up @@ -193,23 +193,23 @@ static inline pgtable_t pmd_pgtable(pmd_t pmd)
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address)
{
return (pte_t *)page_table_alloc(mm, address, 1);
return (pte_t *)pte_fragment_alloc(mm, address, 1);
}

static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
unsigned long address)
{
return (pgtable_t)page_table_alloc(mm, address, 0);
return (pgtable_t)pte_fragment_alloc(mm, address, 0);
}

static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
{
page_table_free(mm, (unsigned long *)pte, 1);
pte_fragment_fre((unsigned long *)pte, 1);
}

static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
{
page_table_free(mm, (unsigned long *)ptepage, 0);
pte_fragment_free((unsigned long *)ptepage, 0);
}

static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
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21 changes: 4 additions & 17 deletions arch/powerpc/mm/pgtable_64.c
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Original file line number Diff line number Diff line change
Expand Up @@ -357,7 +357,7 @@ static pte_t *__alloc_for_cache(struct mm_struct *mm, int kernel)
return (pte_t *)ret;
}

pte_t *page_table_alloc(struct mm_struct *mm, unsigned long vmaddr, int kernel)
pte_t *pte_fragment_alloc(struct mm_struct *mm, unsigned long vmaddr, int kernel)
{
pte_t *pte;

Expand All @@ -368,7 +368,7 @@ pte_t *page_table_alloc(struct mm_struct *mm, unsigned long vmaddr, int kernel)
return __alloc_for_cache(mm, kernel);
}

void page_table_free(struct mm_struct *mm, unsigned long *table, int kernel)
void pte_fragment_free(unsigned long *table, int kernel)
{
struct page *page = virt_to_page(table);
if (put_page_testzero(page)) {
Expand All @@ -379,15 +379,6 @@ void page_table_free(struct mm_struct *mm, unsigned long *table, int kernel)
}

#ifdef CONFIG_SMP
static void page_table_free_rcu(void *table)
{
struct page *page = virt_to_page(table);
if (put_page_testzero(page)) {
pgtable_page_dtor(page);
free_hot_cold_page(page, 0);
}
}

void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift)
{
unsigned long pgf = (unsigned long)table;
Expand All @@ -404,7 +395,7 @@ void __tlb_remove_table(void *_table)

if (!shift)
/* PTE page needs special handling */
page_table_free_rcu(table);
pte_fragment_free(table, 0);
else {
BUG_ON(shift > MAX_PGTABLE_INDEX_SIZE);
kmem_cache_free(PGT_CACHE(shift), table);
Expand All @@ -415,11 +406,7 @@ void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift)
{
if (!shift) {
/* PTE page needs special handling */
struct page *page = virt_to_page(table);
if (put_page_testzero(page)) {
pgtable_page_dtor(page);
free_hot_cold_page(page, 0);
}
pte_fragment_free(table, 0);
} else {
BUG_ON(shift > MAX_PGTABLE_INDEX_SIZE);
kmem_cache_free(PGT_CACHE(shift), table);
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