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mm/pgtable: drop pgtable_t variable from pte_fn_t functions 

Drop the pgtable_t variable from all implementation for pte_fn_t as none
of them use it.  apply_to_pte_range() should stop computing it as well.
Should help us save some cycles.

Link: http://lkml.kernel.org/r/1556803126-26596-1-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Acked-by: Matthew Wilcox <willy@infradead.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Logan Gunthorpe <logang@deltatee.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: <jglisse@redhat.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Anshuman Khandual 2019-07-11 20:58:43 -07:00 committed by Linus Torvalds
parent c2471e79a7
commit 8b1e0f81fb
13 changed files with 15 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm/kernel/efi.c
View File

@ -8,8 +8,7 @@
#include <asm/mach/map.h> #include <asm/mach/map.h>
#include <asm/mmu_context.h> #include <asm/mmu_context.h>
static int __init set_permissions(pte_t *ptep, pgtable_t token, static int __init set_permissions(pte_t *ptep, unsigned long addr, void *data)
unsigned long addr, void *data)
{ {
efi_memory_desc_t *md = data; efi_memory_desc_t *md = data;
pte_t pte = *ptep; pte_t pte = *ptep;

3
arch/arm/mm/dma-mapping.c
View File

@ -493,8 +493,7 @@ void __init dma_contiguous_remap(void)
} }
} }
static int __dma_update_pte(pte_t *pte, pgtable_t token, unsigned long addr, static int __dma_update_pte(pte_t *pte, unsigned long addr, void *data)
void *data)
{ {
struct page *page = virt_to_page(addr); struct page *page = virt_to_page(addr);
pgprot_t prot = *(pgprot_t *)data; pgprot_t prot = *(pgprot_t *)data;

3
arch/arm/mm/pageattr.c
View File

@ -14,8 +14,7 @@ struct page_change_data {
pgprot_t clear_mask; pgprot_t clear_mask;
}; };
static int change_page_range(pte_t *ptep, pgtable_t token, unsigned long addr, static int change_page_range(pte_t *ptep, unsigned long addr, void *data)
void *data)
{ {
struct page_change_data *cdata = data; struct page_change_data *cdata = data;
pte_t pte = *ptep; pte_t pte = *ptep;

3
arch/arm64/kernel/efi.c
View File

@ -82,8 +82,7 @@ int __init efi_create_mapping(struct mm_struct *mm, efi_memory_desc_t *md)
return 0; return 0;
} }
static int __init set_permissions(pte_t *ptep, pgtable_t token, static int __init set_permissions(pte_t *ptep, unsigned long addr, void *data)
unsigned long addr, void *data)
{ {
efi_memory_desc_t *md = data; efi_memory_desc_t *md = data;
pte_t pte = READ_ONCE(*ptep); pte_t pte = READ_ONCE(*ptep);

3
arch/arm64/mm/pageattr.c
View File

@ -19,8 +19,7 @@ struct page_change_data {
bool rodata_full __ro_after_init = IS_ENABLED(CONFIG_RODATA_FULL_DEFAULT_ENABLED); bool rodata_full __ro_after_init = IS_ENABLED(CONFIG_RODATA_FULL_DEFAULT_ENABLED);
static int change_page_range(pte_t *ptep, pgtable_t token, unsigned long addr, static int change_page_range(pte_t *ptep, unsigned long addr, void *data)
void *data)
{ {
struct page_change_data *cdata = data; struct page_change_data *cdata = data;
pte_t pte = READ_ONCE(*ptep); pte_t pte = READ_ONCE(*ptep);

3
arch/x86/xen/mmu_pv.c
View File

@ -2700,8 +2700,7 @@ struct remap_data {
struct mmu_update *mmu_update; struct mmu_update *mmu_update;
}; };
static int remap_area_pfn_pte_fn(pte_t *ptep, pgtable_t token, static int remap_area_pfn_pte_fn(pte_t *ptep, unsigned long addr, void *data)
unsigned long addr, void *data)
{ {
struct remap_data *rmd = data; struct remap_data *rmd = data;
pte_t pte = pte_mkspecial(mfn_pte(*rmd->pfn, rmd->prot)); pte_t pte = pte_mkspecial(mfn_pte(*rmd->pfn, rmd->prot));

3
drivers/gpu/drm/i915/i915_mm.c
View File

@ -35,8 +35,7 @@ struct remap_pfn {
pgprot_t prot; pgprot_t prot;
}; };
static int remap_pfn(pte_t *pte, pgtable_t token, static int remap_pfn(pte_t *pte, unsigned long addr, void *data)
unsigned long addr, void *data)
{ {
struct remap_pfn *r = data; struct remap_pfn *r = data;

6
drivers/xen/gntdev.c
View File

@ -264,8 +264,7 @@ void gntdev_put_map(struct gntdev_priv *priv, struct gntdev_grant_map *map)
/* ------------------------------------------------------------------ */ /* ------------------------------------------------------------------ */
static int find_grant_ptes(pte_t *pte, pgtable_t token, static int find_grant_ptes(pte_t *pte, unsigned long addr, void *data)
unsigned long addr, void *data)
{ {
struct gntdev_grant_map *map = data; struct gntdev_grant_map *map = data;
unsigned int pgnr = (addr - map->vma->vm_start) >> PAGE_SHIFT; unsigned int pgnr = (addr - map->vma->vm_start) >> PAGE_SHIFT;
@ -292,8 +291,7 @@ static int find_grant_ptes(pte_t *pte, pgtable_t token,
} }
#ifdef CONFIG_X86 #ifdef CONFIG_X86
static int set_grant_ptes_as_special(pte_t *pte, pgtable_t token, static int set_grant_ptes_as_special(pte_t *pte, unsigned long addr, void *data)
unsigned long addr, void *data)
{ {
set_pte_at(current->mm, addr, pte, pte_mkspecial(*pte)); set_pte_at(current->mm, addr, pte, pte_mkspecial(*pte));
return 0; return 0;

6
drivers/xen/privcmd.c
View File

@ -731,8 +731,7 @@ struct remap_pfn {
unsigned long i; unsigned long i;
}; };
static int remap_pfn_fn(pte_t *ptep, pgtable_t token, unsigned long addr, static int remap_pfn_fn(pte_t *ptep, unsigned long addr, void *data)
void *data)
{ {
struct remap_pfn *r = data; struct remap_pfn *r = data;
struct page *page = r->pages[r->i]; struct page *page = r->pages[r->i];
@ -966,8 +965,7 @@ static int privcmd_mmap(struct file *file, struct vm_area_struct *vma)
* on a per pfn/pte basis. Mapping calls that fail with ENOENT * on a per pfn/pte basis. Mapping calls that fail with ENOENT
* can be then retried until success. * can be then retried until success.
*/ */
static int is_mapped_fn(pte_t *pte, struct page *pmd_page, static int is_mapped_fn(pte_t *pte, unsigned long addr, void *data)
unsigned long addr, void *data)
{ {
return pte_none(*pte) ? 0 : -EBUSY; return pte_none(*pte) ? 0 : -EBUSY;
} }

3
drivers/xen/xlate_mmu.c
View File

@ -93,8 +93,7 @@ static void setup_hparams(unsigned long gfn, void *data)
info->fgfn++; info->fgfn++;
} }
static int remap_pte_fn(pte_t *ptep, pgtable_t token, unsigned long addr, static int remap_pte_fn(pte_t *ptep, unsigned long addr, void *data)
void *data)
{ {
struct remap_data *info = data; struct remap_data *info = data;
struct page *page = info->pages[info->index++]; struct page *page = info->pages[info->index++];

3
include/linux/mm.h
View File

@ -2686,8 +2686,7 @@ static inline int vm_fault_to_errno(vm_fault_t vm_fault, int foll_flags)
return 0; return 0;
} }
typedef int (*pte_fn_t)(pte_t *pte, pgtable_t token, unsigned long addr, typedef int (*pte_fn_t)(pte_t *pte, unsigned long addr, void *data);
void *data);
extern int apply_to_page_range(struct mm_struct *mm, unsigned long address, extern int apply_to_page_range(struct mm_struct *mm, unsigned long address,
unsigned long size, pte_fn_t fn, void *data); unsigned long size, pte_fn_t fn, void *data);

5
mm/memory.c
View File

@ -2036,7 +2036,6 @@ static int apply_to_pte_range(struct mm_struct *mm, pmd_t *pmd,
{ {
pte_t *pte; pte_t *pte;
int err; int err;
pgtable_t token;
spinlock_t *uninitialized_var(ptl); spinlock_t *uninitialized_var(ptl);
pte = (mm == &init_mm) ? pte = (mm == &init_mm) ?
@ -2049,10 +2048,8 @@ static int apply_to_pte_range(struct mm_struct *mm, pmd_t *pmd,
arch_enter_lazy_mmu_mode(); arch_enter_lazy_mmu_mode();
token = pmd_pgtable(*pmd);
do { do {
err = fn(pte++, token, addr, data); err = fn(pte++, addr, data);
if (err) if (err)
break; break;
} while (addr += PAGE_SIZE, addr != end); } while (addr += PAGE_SIZE, addr != end);

2
mm/vmalloc.c
View File

@ -2996,7 +2996,7 @@ void __weak vmalloc_sync_all(void)
} }
static int f(pte_t *pte, pgtable_t table, unsigned long addr, void *data) static int f(pte_t *pte, unsigned long addr, void *data)
{ {
pte_t ***p = data; pte_t ***p = data;