| Message ID | 20230531213032.25338-26-vishal.moola@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Split ptdesc from struct page | expand |
Hi Vishal, On Wed, May 31, 2023 at 11:32 PM Vishal Moola (Oracle) <vishal.moola@gmail.com> wrote: > As part of the conversions to replace pgtable constructor/destructors with > ptdesc equivalents, convert various page table functions to use ptdescs. > > Some of the functions use the *get*page*() helper functions. Convert > these to use pagetable_alloc() and ptdesc_address() instead to help > standardize page tables further. > > Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com> Thanks for your patch! > --- a/arch/m68k/include/asm/mcf_pgalloc.h > +++ b/arch/m68k/include/asm/mcf_pgalloc.h > @@ -7,20 +7,19 @@ > > extern inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) > { > - free_page((unsigned long) pte); > + pagetable_free(virt_to_ptdesc(pte)); > } > > extern const char bad_pmd_string[]; > > extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) > { > - unsigned long page = __get_free_page(GFP_DMA); > + struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | __GFP_ZERO, 0); > > - if (!page) > + if (!ptdesc) > return NULL; > > - memset((void *)page, 0, PAGE_SIZE); > - return (pte_t *) (page); > + return (pte_t *) (ptdesc_address(ptdesc)); No need to cast "void *" when returning a different pointer type. > } > > extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address) > @@ -35,36 +34,36 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address) > static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable, > unsigned long address) > { > - struct page *page = virt_to_page(pgtable); > + struct ptdesc *ptdesc = virt_to_ptdesc(pgtable); > > - pgtable_pte_page_dtor(page); > - __free_page(page); > + pagetable_pte_dtor(ptdesc); > + pagetable_free(ptdesc); > } > > static inline pgtable_t pte_alloc_one(struct mm_struct *mm) > { > - struct page *page = alloc_pages(GFP_DMA, 0); > + struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA, 0); > pte_t *pte; > > - if (!page) > + if (!ptdesc) > return NULL; > - if (!pgtable_pte_page_ctor(page)) { > - __free_page(page); > + if (!pagetable_pte_ctor(ptdesc)) { > + pagetable_free(ptdesc); > return NULL; > } > > - pte = page_address(page); > - clear_page(pte); > + pte = ptdesc_address(ptdesc); > + pagetable_clear(pte); > > return pte; > } > > static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable) > { > - struct page *page = virt_to_page(pgtable); > + struct ptdesc *ptdesc = virt_to_ptdesc(ptdesc); virt_to_ptdesc(pgtable) (You can build this using m5475evb_defconfig) > > - pgtable_pte_page_dtor(page); > - __free_page(page); > + pagetable_pte_dtor(ptdesc); > + pagetable_free(ptdesc); > } > > /* > @@ -75,16 +74,18 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable) > > static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) > { > - free_page((unsigned long) pgd); > + pagetable_free(virt_to_ptdesc(pgd)); > } > > static inline pgd_t *pgd_alloc(struct mm_struct *mm) > { > pgd_t *new_pgd; > + struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | GFP_NOWARN, 0); > > - new_pgd = (pgd_t *)__get_free_page(GFP_DMA | __GFP_NOWARN); > - if (!new_pgd) > + if (!ptdesc) > return NULL; > + new_pgd = (pgd_t *) ptdesc_address(ptdesc); No need to cast "void *" when assigning to a different pointer type. > + > memcpy(new_pgd, swapper_pg_dir, PTRS_PER_PGD * sizeof(pgd_t)); > memset(new_pgd, 0, PAGE_OFFSET >> PGDIR_SHIFT); > return new_pgd; The rest LGTM. Gr{oetje,eeting}s, Geert
On Thu, Jun 1, 2023 at 12:40 AM Geert Uytterhoeven <geert@linux-m68k.org> wrote: > > Hi Vishal, > > On Wed, May 31, 2023 at 11:32 PM Vishal Moola (Oracle) > <vishal.moola@gmail.com> wrote: > > As part of the conversions to replace pgtable constructor/destructors with > > ptdesc equivalents, convert various page table functions to use ptdescs. > > > > Some of the functions use the *get*page*() helper functions. Convert > > these to use pagetable_alloc() and ptdesc_address() instead to help > > standardize page tables further. > > > > Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com> > > Thanks for your patch! > > > --- a/arch/m68k/include/asm/mcf_pgalloc.h > > +++ b/arch/m68k/include/asm/mcf_pgalloc.h > > @@ -7,20 +7,19 @@ > > > > extern inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) > > { > > - free_page((unsigned long) pte); > > + pagetable_free(virt_to_ptdesc(pte)); > > } > > > > extern const char bad_pmd_string[]; > > > > extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) > > { > > - unsigned long page = __get_free_page(GFP_DMA); > > + struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | __GFP_ZERO, 0); > > > > - if (!page) > > + if (!ptdesc) > > return NULL; > > > > - memset((void *)page, 0, PAGE_SIZE); > > - return (pte_t *) (page); > > + return (pte_t *) (ptdesc_address(ptdesc)); > > No need to cast "void *" when returning a different pointer type. > > > } > > > > extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address) > > @@ -35,36 +34,36 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address) > > static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable, > > unsigned long address) > > { > > - struct page *page = virt_to_page(pgtable); > > + struct ptdesc *ptdesc = virt_to_ptdesc(pgtable); > > > > - pgtable_pte_page_dtor(page); > > - __free_page(page); > > + pagetable_pte_dtor(ptdesc); > > + pagetable_free(ptdesc); > > } > > > > static inline pgtable_t pte_alloc_one(struct mm_struct *mm) > > { > > - struct page *page = alloc_pages(GFP_DMA, 0); > > + struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA, 0); > > pte_t *pte; > > > > - if (!page) > > + if (!ptdesc) > > return NULL; > > - if (!pgtable_pte_page_ctor(page)) { > > - __free_page(page); > > + if (!pagetable_pte_ctor(ptdesc)) { > > + pagetable_free(ptdesc); > > return NULL; > > } > > > > - pte = page_address(page); > > - clear_page(pte); > > + pte = ptdesc_address(ptdesc); > > + pagetable_clear(pte); > > > > return pte; > > } > > > > static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable) > > { > > - struct page *page = virt_to_page(pgtable); > > + struct ptdesc *ptdesc = virt_to_ptdesc(ptdesc); > > virt_to_ptdesc(pgtable) > > (You can build this using m5475evb_defconfig) > > > > > - pgtable_pte_page_dtor(page); > > - __free_page(page); > > + pagetable_pte_dtor(ptdesc); > > + pagetable_free(ptdesc); > > } > > > > /* > > @@ -75,16 +74,18 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable) > > > > static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) > > { > > - free_page((unsigned long) pgd); > > + pagetable_free(virt_to_ptdesc(pgd)); > > } > > > > static inline pgd_t *pgd_alloc(struct mm_struct *mm) > > { > > pgd_t *new_pgd; > > + struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | GFP_NOWARN, 0); > > > > - new_pgd = (pgd_t *)__get_free_page(GFP_DMA | __GFP_NOWARN); > > - if (!new_pgd) > > + if (!ptdesc) > > return NULL; > > + new_pgd = (pgd_t *) ptdesc_address(ptdesc); > > No need to cast "void *" when assigning to a different pointer type. > > > + > > memcpy(new_pgd, swapper_pg_dir, PTRS_PER_PGD * sizeof(pgd_t)); > > memset(new_pgd, 0, PAGE_OFFSET >> PGDIR_SHIFT); > > return new_pgd; > > The rest LGTM. Thanks so much for the review! I'll make those changes in the next version. > Gr{oetje,eeting}s, > > Geert > > -- > Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org > > In personal conversations with technical people, I call myself a hacker. But > when I'm talking to journalists I just say "programmer" or something like that. > -- Linus Torvalds
Hi Vishal,
kernel test robot noticed the following build errors:
[auto build test ERROR on next-20230531]
[cannot apply to akpm-mm/mm-everything s390/features powerpc/next powerpc/fixes geert-m68k/for-next geert-m68k/for-linus linus/master v6.4-rc4 v6.4-rc3 v6.4-rc2 v6.4-rc4]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Vishal-Moola-Oracle/mm-Add-PAGE_TYPE_OP-folio-functions/20230601-053454
base: next-20230531
patch link: https://lore.kernel.org/r/20230531213032.25338-26-vishal.moola%40gmail.com
patch subject: [PATCH v3 25/34] m68k: Convert various functions to use ptdescs
config: m68k-randconfig-r002-20230531 (https://download.01.org/0day-ci/archive/20230601/202306011704.i8xMWKPl-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 12.3.0
reproduce (this is a W=1 build):
mkdir -p ~/bin
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/915ab62dc3315fe0a0544fccb4ee5f3ee32694b5
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Vishal-Moola-Oracle/mm-Add-PAGE_TYPE_OP-folio-functions/20230601-053454
git checkout 915ab62dc3315fe0a0544fccb4ee5f3ee32694b5
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=m68k olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash arch/m68k/mm/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306011704.i8xMWKPl-lkp@intel.com/
All error/warnings (new ones prefixed by >>):
In file included from arch/m68k/include/asm/pgalloc.h:12,
from arch/m68k/mm/init.c:26:
arch/m68k/include/asm/mcf_pgalloc.h: In function 'pgd_alloc':
>> arch/m68k/include/asm/mcf_pgalloc.h:83:59: error: 'GFP_NOWARN' undeclared (first use in this function); did you mean 'GFP_NOWAIT'?
83 | struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | GFP_NOWARN, 0);
| ^~~~~~~~~~
| GFP_NOWAIT
arch/m68k/include/asm/mcf_pgalloc.h:83:59: note: each undeclared identifier is reported only once for each function it appears in
arch/m68k/include/asm/mcf_pgalloc.h: At top level:
>> arch/m68k/include/asm/mcf_pgalloc.h:22:27: warning: 'ptdesc_address' is static but used in inline function 'pte_alloc_one_kernel' which is not static
22 | return (pte_t *) (ptdesc_address(ptdesc));
| ^~~~~~~~~~~~~~
>> arch/m68k/include/asm/mcf_pgalloc.h:17:33: warning: 'pagetable_alloc' is static but used in inline function 'pte_alloc_one_kernel' which is not static
17 | struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | __GFP_ZERO, 0);
| ^~~~~~~~~~~~~~~
>> arch/m68k/include/asm/mcf_pgalloc.h:10:24: warning: 'virt_to_ptdesc' is static but used in inline function 'pte_free_kernel' which is not static
10 | pagetable_free(virt_to_ptdesc(pte));
| ^~~~~~~~~~~~~~
>> arch/m68k/include/asm/mcf_pgalloc.h:10:9: warning: 'pagetable_free' is static but used in inline function 'pte_free_kernel' which is not static
10 | pagetable_free(virt_to_ptdesc(pte));
| ^~~~~~~~~~~~~~
--
In file included from arch/m68k/mm/mcfmmu.c:21:
arch/m68k/include/asm/mcf_pgalloc.h: In function 'pgd_alloc':
>> arch/m68k/include/asm/mcf_pgalloc.h:83:59: error: 'GFP_NOWARN' undeclared (first use in this function); did you mean 'GFP_NOWAIT'?
83 | struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | GFP_NOWARN, 0);
| ^~~~~~~~~~
| GFP_NOWAIT
arch/m68k/include/asm/mcf_pgalloc.h:83:59: note: each undeclared identifier is reported only once for each function it appears in
arch/m68k/mm/mcfmmu.c: At top level:
arch/m68k/mm/mcfmmu.c:36:13: warning: no previous prototype for 'paging_init' [-Wmissing-prototypes]
36 | void __init paging_init(void)
| ^~~~~~~~~~~
arch/m68k/mm/mcfmmu.c: In function 'paging_init':
arch/m68k/mm/mcfmmu.c:41:37: warning: variable 'bootmem_end' set but not used [-Wunused-but-set-variable]
41 | unsigned long next_pgtable, bootmem_end;
| ^~~~~~~~~~~
arch/m68k/include/asm/mcf_pgalloc.h: At top level:
>> arch/m68k/include/asm/mcf_pgalloc.h:22:27: warning: 'ptdesc_address' is static but used in inline function 'pte_alloc_one_kernel' which is not static
22 | return (pte_t *) (ptdesc_address(ptdesc));
| ^~~~~~~~~~~~~~
>> arch/m68k/include/asm/mcf_pgalloc.h:17:33: warning: 'pagetable_alloc' is static but used in inline function 'pte_alloc_one_kernel' which is not static
17 | struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | __GFP_ZERO, 0);
| ^~~~~~~~~~~~~~~
>> arch/m68k/include/asm/mcf_pgalloc.h:10:24: warning: 'virt_to_ptdesc' is static but used in inline function 'pte_free_kernel' which is not static
10 | pagetable_free(virt_to_ptdesc(pte));
| ^~~~~~~~~~~~~~
>> arch/m68k/include/asm/mcf_pgalloc.h:10:9: warning: 'pagetable_free' is static but used in inline function 'pte_free_kernel' which is not static
10 | pagetable_free(virt_to_ptdesc(pte));
| ^~~~~~~~~~~~~~
vim +83 arch/m68k/include/asm/mcf_pgalloc.h
7
8 extern inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
9 {
> 10 pagetable_free(virt_to_ptdesc(pte));
11 }
12
13 extern const char bad_pmd_string[];
14
15 extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
16 {
> 17 struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | __GFP_ZERO, 0);
18
19 if (!ptdesc)
20 return NULL;
21
> 22 return (pte_t *) (ptdesc_address(ptdesc));
23 }
24
25 extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address)
26 {
27 return (pmd_t *) pgd;
28 }
29
30 #define pmd_populate(mm, pmd, pte) (pmd_val(*pmd) = (unsigned long)(pte))
31
32 #define pmd_populate_kernel pmd_populate
33
34 static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable,
35 unsigned long address)
36 {
37 struct ptdesc *ptdesc = virt_to_ptdesc(pgtable);
38
39 pagetable_pte_dtor(ptdesc);
40 pagetable_free(ptdesc);
41 }
42
43 static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
44 {
45 struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA, 0);
46 pte_t *pte;
47
48 if (!ptdesc)
49 return NULL;
50 if (!pagetable_pte_ctor(ptdesc)) {
51 pagetable_free(ptdesc);
52 return NULL;
53 }
54
55 pte = ptdesc_address(ptdesc);
56 pagetable_clear(pte);
57
58 return pte;
59 }
60
61 static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable)
62 {
63 struct ptdesc *ptdesc = virt_to_ptdesc(ptdesc);
64
65 pagetable_pte_dtor(ptdesc);
66 pagetable_free(ptdesc);
67 }
68
69 /*
70 * In our implementation, each pgd entry contains 1 pmd that is never allocated
71 * or freed. pgd_present is always 1, so this should never be called. -NL
72 */
73 #define pmd_free(mm, pmd) BUG()
74
75 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
76 {
77 pagetable_free(virt_to_ptdesc(pgd));
78 }
79
80 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
81 {
82 pgd_t *new_pgd;
> 83 struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | GFP_NOWARN, 0);
84
85 if (!ptdesc)
86 return NULL;
87 new_pgd = (pgd_t *) ptdesc_address(ptdesc);
88
89 memcpy(new_pgd, swapper_pg_dir, PTRS_PER_PGD * sizeof(pgd_t));
90 memset(new_pgd, 0, PAGE_OFFSET >> PGDIR_SHIFT);
91 return new_pgd;
92 }
93
diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h index 5c2c0a864524..9eb4ef9e6d77 100644 --- a/arch/m68k/include/asm/mcf_pgalloc.h +++ b/arch/m68k/include/asm/mcf_pgalloc.h @@ -7,20 +7,19 @@ extern inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) { - free_page((unsigned long) pte); + pagetable_free(virt_to_ptdesc(pte)); } extern const char bad_pmd_string[]; extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) { - unsigned long page = __get_free_page(GFP_DMA); + struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | __GFP_ZERO, 0); - if (!page) + if (!ptdesc) return NULL; - memset((void *)page, 0, PAGE_SIZE); - return (pte_t *) (page); + return (pte_t *) (ptdesc_address(ptdesc)); } extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address) @@ -35,36 +34,36 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address) static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable, unsigned long address) { - struct page *page = virt_to_page(pgtable); + struct ptdesc *ptdesc = virt_to_ptdesc(pgtable); - pgtable_pte_page_dtor(page); - __free_page(page); + pagetable_pte_dtor(ptdesc); + pagetable_free(ptdesc); } static inline pgtable_t pte_alloc_one(struct mm_struct *mm) { - struct page *page = alloc_pages(GFP_DMA, 0); + struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA, 0); pte_t *pte; - if (!page) + if (!ptdesc) return NULL; - if (!pgtable_pte_page_ctor(page)) { - __free_page(page); + if (!pagetable_pte_ctor(ptdesc)) { + pagetable_free(ptdesc); return NULL; } - pte = page_address(page); - clear_page(pte); + pte = ptdesc_address(ptdesc); + pagetable_clear(pte); return pte; } static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable) { - struct page *page = virt_to_page(pgtable); + struct ptdesc *ptdesc = virt_to_ptdesc(ptdesc); - pgtable_pte_page_dtor(page); - __free_page(page); + pagetable_pte_dtor(ptdesc); + pagetable_free(ptdesc); } /* @@ -75,16 +74,18 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable) static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) { - free_page((unsigned long) pgd); + pagetable_free(virt_to_ptdesc(pgd)); } static inline pgd_t *pgd_alloc(struct mm_struct *mm) { pgd_t *new_pgd; + struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | GFP_NOWARN, 0); - new_pgd = (pgd_t *)__get_free_page(GFP_DMA | __GFP_NOWARN); - if (!new_pgd) + if (!ptdesc) return NULL; + new_pgd = (pgd_t *) ptdesc_address(ptdesc); + memcpy(new_pgd, swapper_pg_dir, PTRS_PER_PGD * sizeof(pgd_t)); memset(new_pgd, 0, PAGE_OFFSET >> PGDIR_SHIFT); return new_pgd; diff --git a/arch/m68k/include/asm/sun3_pgalloc.h b/arch/m68k/include/asm/sun3_pgalloc.h index 198036aff519..ff48573db2c0 100644 --- a/arch/m68k/include/asm/sun3_pgalloc.h +++ b/arch/m68k/include/asm/sun3_pgalloc.h @@ -17,10 +17,10 @@ extern const char bad_pmd_string[]; -#define __pte_free_tlb(tlb,pte,addr) \ -do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page((tlb), pte); \ +#define __pte_free_tlb(tlb, pte, addr) \ +do { \ + pagetable_pte_dtor(page_ptdesc(pte)); \ + tlb_remove_page_ptdesc((tlb), page_ptdesc(pte)); \ } while (0) static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c index c75984e2d86b..594575a0780c 100644 --- a/arch/m68k/mm/motorola.c +++ b/arch/m68k/mm/motorola.c @@ -161,7 +161,7 @@ void *get_pointer_table(int type) * m68k doesn't have SPLIT_PTE_PTLOCKS for not having * SMP. */ - pgtable_pte_page_ctor(virt_to_page(page)); + pagetable_pte_ctor(virt_to_ptdesc(page)); } mmu_page_ctor(page); @@ -201,7 +201,7 @@ int free_pointer_table(void *table, int type) list_del(dp); mmu_page_dtor((void *)page); if (type == TABLE_PTE) - pgtable_pte_page_dtor(virt_to_page((void *)page)); + pagetable_pte_dtor(virt_to_ptdesc((void *)page)); free_page (page); return 1; } else if (ptable_list[type].next != dp) {
As part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents, convert various page table functions to use ptdescs. Some of the functions use the *get*page*() helper functions. Convert these to use pagetable_alloc() and ptdesc_address() instead to help standardize page tables further. Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com> --- arch/m68k/include/asm/mcf_pgalloc.h | 41 ++++++++++++++-------------- arch/m68k/include/asm/sun3_pgalloc.h | 8 +++--- arch/m68k/mm/motorola.c | 4 +-- 3 files changed, 27 insertions(+), 26 deletions(-)