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Message-ID: <202310082358.5mUe4Xjy-lkp@intel.com>
Date: Sun, 8 Oct 2023 23:47:14 +0800
From: kernel test robot <lkp@...el.com>
To: "brookxu.cn" <brookxu.cn@...il.com>, bsingharora@...il.com,
juri.lelli@...hat.com, peterz@...radead.org,
vincent.guittot@...aro.org
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] delayacct: convert task->delays to a object
Hi brookxu.cn,
kernel test robot noticed the following build errors:
[auto build test ERROR on tip/sched/core]
[also build test ERROR on linus/master v6.6-rc4 next-20231006]
[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/brookxu-cn/delayacct-introduce-delayacct_enabled-to-simplify-implement/20231008-185144
base: tip/sched/core
patch link: https://lore.kernel.org/r/531ddc82793a39f4c09316d701a4b1170bcad4ab.1696761522.git.chunguang.xu%40shopee.com
patch subject: [PATCH 2/3] delayacct: convert task->delays to a object
config: arm64-randconfig-003-20231008 (https://download.01.org/0day-ci/archive/20231008/202310082358.5mUe4Xjy-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231008/202310082358.5mUe4Xjy-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310082358.5mUe4Xjy-lkp@intel.com/
All error/warnings (new ones prefixed by >>):
In file included from include/linux/kasan.h:33,
from include/linux/slab.h:180,
from include/linux/delayacct.h:62,
from include/linux/sched.h:40,
from arch/arm64/include/asm/mte.h:16,
from arch/arm64/include/asm/pgtable.h:12,
from arch/arm64/include/asm/vmalloc.h:5,
from include/linux/vmalloc.h:13,
from mm/vmalloc.c:11:
include/linux/pgtable.h: In function 'pte_offset_kernel':
include/linux/pgtable.h:94:25: error: implicit declaration of function 'pmd_page_vaddr'; did you mean 'pgd_page_vaddr'? [-Werror=implicit-function-declaration]
94 | return (pte_t *)pmd_page_vaddr(*pmd) + pte_index(address);
| ^~~~~~~~~~~~~~
| pgd_page_vaddr
include/linux/pgtable.h:94:16: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
94 | return (pte_t *)pmd_page_vaddr(*pmd) + pte_index(address);
| ^
include/linux/pgtable.h: In function 'pmd_offset':
include/linux/pgtable.h:123:16: error: implicit declaration of function 'pud_pgtable'; did you mean 'p4d_pgtable'? [-Werror=implicit-function-declaration]
123 | return pud_pgtable(*pud) + pmd_index(address);
| ^~~~~~~~~~~
| p4d_pgtable
include/linux/pgtable.h:123:34: warning: returning 'long unsigned int' from a function with return type 'pmd_t *' makes pointer from integer without a cast [-Wint-conversion]
123 | return pud_pgtable(*pud) + pmd_index(address);
| ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
include/linux/pgtable.h: In function 'virt_to_kpte':
include/linux/pgtable.h:177:16: error: implicit declaration of function 'pmd_none'; did you mean 'p4d_none'? [-Werror=implicit-function-declaration]
177 | return pmd_none(*pmd) ? NULL : pte_offset_kernel(pmd, vaddr);
| ^~~~~~~~
| p4d_none
In file included from arch/arm64/include/asm/kasan.h:10,
from arch/arm64/include/asm/processor.h:40,
from include/asm-generic/qrwlock.h:18,
from ./arch/arm64/include/generated/asm/qrwlock.h:1,
from arch/arm64/include/asm/spinlock.h:9,
from include/linux/spinlock.h:95,
from include/linux/vmalloc.h:5:
include/linux/pgtable.h: In function 'pte_next_pfn':
include/linux/pgtable.h:213:45: error: 'PFN_PTE_SHIFT' undeclared (first use in this function); did you mean 'CONT_PTE_SHIFT'?
213 | return __pte(pte_val(pte) + (1UL << PFN_PTE_SHIFT));
| ^~~~~~~~~~~~~
arch/arm64/include/asm/pgtable-types.h:25:37: note: in definition of macro '__pte'
25 | #define __pte(x) ((pte_t) { (x) } )
| ^
include/linux/pgtable.h:213:45: note: each undeclared identifier is reported only once for each function it appears in
213 | return __pte(pte_val(pte) + (1UL << PFN_PTE_SHIFT));
| ^~~~~~~~~~~~~
arch/arm64/include/asm/pgtable-types.h:25:37: note: in definition of macro '__pte'
25 | #define __pte(x) ((pte_t) { (x) } )
| ^
include/linux/pgtable.h: In function 'set_ptes':
include/linux/pgtable.h:238:17: error: implicit declaration of function 'set_pte'; did you mean 'set_ptes'? [-Werror=implicit-function-declaration]
238 | set_pte(ptep, pte);
| ^~~~~~~
| set_ptes
include/linux/pgtable.h: In function 'ptep_test_and_clear_young':
include/linux/pgtable.h:302:14: error: implicit declaration of function 'pte_young'; did you mean 'pmd_young'? [-Werror=implicit-function-declaration]
302 | if (!pte_young(pte))
| ^~~~~~~~~
| pmd_young
include/linux/pgtable.h:305:55: error: implicit declaration of function 'pte_mkold' [-Werror=implicit-function-declaration]
305 | set_pte_at(vma->vm_mm, address, ptep, pte_mkold(pte));
| ^~~~~~~~~
include/linux/pgtable.h:247:66: note: in definition of macro 'set_pte_at'
247 | #define set_pte_at(mm, addr, ptep, pte) set_ptes(mm, addr, ptep, pte, 1)
| ^~~
include/linux/pgtable.h:305:55: error: incompatible type for argument 4 of 'set_ptes'
305 | set_pte_at(vma->vm_mm, address, ptep, pte_mkold(pte));
| ^~~~~~~~~~~~~~
| |
| int
include/linux/pgtable.h:247:66: note: in definition of macro 'set_pte_at'
247 | #define set_pte_at(mm, addr, ptep, pte) set_ptes(mm, addr, ptep, pte, 1)
| ^~~
include/linux/pgtable.h:232:36: note: expected 'pte_t' but argument is of type 'int'
232 | pte_t *ptep, pte_t pte, unsigned int nr)
| ~~~~~~^~~
include/linux/pgtable.h: In function 'pmdp_test_and_clear_young':
>> include/linux/pgtable.h:321:17: error: implicit declaration of function 'set_pmd_at'; did you mean 'set_pte_at'? [-Werror=implicit-function-declaration]
321 | set_pmd_at(vma->vm_mm, address, pmdp, pmd_mkold(pmd));
| ^~~~~~~~~~
| set_pte_at
>> include/linux/pgtable.h:321:55: error: implicit declaration of function 'pmd_mkold' [-Werror=implicit-function-declaration]
321 | set_pmd_at(vma->vm_mm, address, pmdp, pmd_mkold(pmd));
| ^~~~~~~~~
include/linux/pgtable.h: In function 'ptep_get_and_clear':
include/linux/pgtable.h:402:9: error: implicit declaration of function 'pte_clear'; did you mean 'p4d_clear'? [-Werror=implicit-function-declaration]
402 | pte_clear(mm, address, ptep);
| ^~~~~~~~~
| p4d_clear
include/linux/pgtable.h: In function 'pmdp_huge_get_and_clear':
>> include/linux/pgtable.h:505:9: error: implicit declaration of function 'pmd_clear'; did you mean 'p4d_clear'? [-Werror=implicit-function-declaration]
505 | pmd_clear(pmdp);
| ^~~~~~~~~
| p4d_clear
include/linux/pgtable.h: In function 'pudp_huge_get_and_clear':
>> include/linux/pgtable.h:518:9: error: implicit declaration of function 'pud_clear'; did you mean 'p4d_clear'? [-Werror=implicit-function-declaration]
518 | pud_clear(pudp);
| ^~~~~~~~~
| p4d_clear
include/linux/pgtable.h: In function 'pte_mkwrite':
include/linux/pgtable.h:605:16: error: implicit declaration of function 'pte_mkwrite_novma'; did you mean 'pte_mkwrite'? [-Werror=implicit-function-declaration]
605 | return pte_mkwrite_novma(pte);
| ^~~~~~~~~~~~~~~~~
| pte_mkwrite
include/linux/pgtable.h:605:16: error: incompatible types when returning type 'int' but 'pte_t' was expected
605 | return pte_mkwrite_novma(pte);
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/pgtable.h: In function 'pmd_mkwrite':
>> include/linux/pgtable.h:612:16: error: implicit declaration of function 'pmd_mkwrite_novma'; did you mean 'pmd_mkwrite'? [-Werror=implicit-function-declaration]
612 | return pmd_mkwrite_novma(pmd);
| ^~~~~~~~~~~~~~~~~
| pmd_mkwrite
>> include/linux/pgtable.h:612:16: error: incompatible types when returning type 'int' but 'pmd_t' was expected
612 | return pmd_mkwrite_novma(pmd);
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/pgtable.h: In function 'ptep_set_wrprotect':
include/linux/pgtable.h:621:39: error: implicit declaration of function 'pte_wrprotect'; did you mean 'ptep_set_wrprotect'? [-Werror=implicit-function-declaration]
621 | set_pte_at(mm, address, ptep, pte_wrprotect(old_pte));
| ^~~~~~~~~~~~~
include/linux/pgtable.h:247:66: note: in definition of macro 'set_pte_at'
247 | #define set_pte_at(mm, addr, ptep, pte) set_ptes(mm, addr, ptep, pte, 1)
| ^~~
include/linux/pgtable.h:621:39: error: incompatible type for argument 4 of 'set_ptes'
621 | set_pte_at(mm, address, ptep, pte_wrprotect(old_pte));
| ^~~~~~~~~~~~~~~~~~~~~~
| |
| int
include/linux/pgtable.h:247:66: note: in definition of macro 'set_pte_at'
247 | #define set_pte_at(mm, addr, ptep, pte) set_ptes(mm, addr, ptep, pte, 1)
| ^~~
include/linux/pgtable.h:232:36: note: expected 'pte_t' but argument is of type 'int'
232 | pte_t *ptep, pte_t pte, unsigned int nr)
| ~~~~~~^~~
include/linux/pgtable.h: In function 'pmdp_set_wrprotect':
>> include/linux/pgtable.h:647:39: error: implicit declaration of function 'pmd_wrprotect'; did you mean 'pmdp_set_wrprotect'? [-Werror=implicit-function-declaration]
647 | set_pmd_at(mm, address, pmdp, pmd_wrprotect(old_pmd));
| ^~~~~~~~~~~~~
| pmdp_set_wrprotect
include/linux/pgtable.h: In function 'pud_none_or_clear_bad':
include/linux/pgtable.h:1015:13: error: implicit declaration of function 'pud_none'; did you mean 'p4d_none'? [-Werror=implicit-function-declaration]
1015 | if (pud_none(*pud))
| ^~~~~~~~
| p4d_none
In file included from include/linux/export.h:5,
from include/linux/linkage.h:7,
from include/linux/preempt.h:10,
from include/linux/spinlock.h:56:
include/linux/pgtable.h:1017:22: error: implicit declaration of function 'pud_bad'; did you mean 'p4d_bad'? [-Werror=implicit-function-declaration]
1017 | if (unlikely(pud_bad(*pud))) {
| ^~~~~~~
include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
include/linux/pgtable.h: In function 'pmd_none_or_clear_bad':
include/linux/pgtable.h:1028:22: error: implicit declaration of function 'pmd_bad'; did you mean 'p4d_bad'? [-Werror=implicit-function-declaration]
1028 | if (unlikely(pmd_bad(*pmd))) {
| ^~~~~~~
include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
In file included from arch/arm64/include/asm/pgtable.h:14:
arch/arm64/include/asm/pgtable-prot.h: At top level:
arch/arm64/include/asm/pgtable-prot.h:85: warning: "PAGE_KERNEL_RO" redefined
85 | #define PAGE_KERNEL_RO __pgprot(_PAGE_KERNEL_RO)
|
include/linux/pgtable.h:1539: note: this is the location of the previous definition
1539 | # define PAGE_KERNEL_RO PAGE_KERNEL
|
arch/arm64/include/asm/pgtable-prot.h:87: warning: "PAGE_KERNEL_EXEC" redefined
87 | #define PAGE_KERNEL_EXEC __pgprot(_PAGE_KERNEL_EXEC)
|
include/linux/pgtable.h:1543: note: this is the location of the previous definition
1543 | # define PAGE_KERNEL_EXEC PAGE_KERNEL
|
>> arch/arm64/include/asm/pgtable.h:42: warning: "flush_pmd_tlb_range" redefined
42 | #define flush_pmd_tlb_range(vma, addr, end) \
|
include/linux/pgtable.h:1498: note: this is the location of the previous definition
1498 | #define flush_pmd_tlb_range(vma, addr, end) flush_tlb_range(vma, addr, end)
|
>> arch/arm64/include/asm/pgtable.h:44: warning: "flush_pud_tlb_range" redefined
44 | #define flush_pud_tlb_range(vma, addr, end) \
|
include/linux/pgtable.h:1499: note: this is the location of the previous definition
1499 | #define flush_pud_tlb_range(vma, addr, end) flush_tlb_range(vma, addr, end)
|
arch/arm64/include/asm/pgtable.h:60: warning: "flush_tlb_fix_spurious_fault" redefined
60 | #define flush_tlb_fix_spurious_fault(vma, address, ptep) do { } while (0)
|
include/linux/pgtable.h:935: note: this is the location of the previous definition
935 | #define flush_tlb_fix_spurious_fault(vma, address, ptep) flush_tlb_page(vma, address)
|
arch/arm64/include/asm/pgtable.h:143: warning: "pte_accessible" redefined
143 | #define pte_accessible(mm, pte) \
|
include/linux/pgtable.h:931: note: this is the location of the previous definition
931 | # define pte_accessible(mm, pte) ((void)(pte), 1)
|
arch/arm64/include/asm/pgtable.h:153: warning: "pte_access_permitted" redefined
153 | #define pte_access_permitted(pte, write) \
|
include/linux/pgtable.h:767: note: this is the location of the previous definition
767 | #define pte_access_permitted(pte, write) \
|
arch/arm64/include/asm/pgtable.h:155: warning: "pmd_access_permitted" redefined
155 | #define pmd_access_permitted(pmd, write) \
|
include/linux/pgtable.h:772: note: this is the location of the previous definition
772 | #define pmd_access_permitted(pmd, write) \
|
arch/arm64/include/asm/pgtable.h:157: warning: "pud_access_permitted" redefined
157 | #define pud_access_permitted(pud, write) \
|
include/linux/pgtable.h:777: note: this is the location of the previous definition
777 | #define pud_access_permitted(pud, write) \
|
arch/arm64/include/asm/pgtable.h:184:21: error: conflicting types for 'pte_mkwrite_novma'; have 'pte_t(pte_t)'
184 | static inline pte_t pte_mkwrite_novma(pte_t pte)
| ^~~~~~~~~~~~~~~~~
include/linux/pgtable.h:605:16: note: previous implicit declaration of 'pte_mkwrite_novma' with type 'int()'
605 | return pte_mkwrite_novma(pte);
| ^~~~~~~~~~~~~~~~~
arch/arm64/include/asm/pgtable.h:209:21: error: conflicting types for 'pte_wrprotect'; have 'pte_t(pte_t)'
209 | static inline pte_t pte_wrprotect(pte_t pte)
| ^~~~~~~~~~~~~
include/linux/pgtable.h:621:39: note: previous implicit declaration of 'pte_wrprotect' with type 'int()'
621 | set_pte_at(mm, address, ptep, pte_wrprotect(old_pte));
| ^~~~~~~~~~~~~
include/linux/pgtable.h:247:66: note: in definition of macro 'set_pte_at'
247 | #define set_pte_at(mm, addr, ptep, pte) set_ptes(mm, addr, ptep, pte, 1)
| ^~~
arch/arm64/include/asm/pgtable.h:223:21: error: conflicting types for 'pte_mkold'; have 'pte_t(pte_t)'
223 | static inline pte_t pte_mkold(pte_t pte)
| ^~~~~~~~~
include/linux/pgtable.h:305:55: note: previous implicit declaration of 'pte_mkold' with type 'int()'
305 | set_pte_at(vma->vm_mm, address, ptep, pte_mkold(pte));
| ^~~~~~~~~
include/linux/pgtable.h:247:66: note: in definition of macro 'set_pte_at'
247 | #define set_pte_at(mm, addr, ptep, pte) set_ptes(mm, addr, ptep, pte, 1)
| ^~~
arch/arm64/include/asm/pgtable.h:264:20: warning: conflicting types for 'set_pte'; have 'void(pte_t *, pte_t)'
264 | static inline void set_pte(pte_t *ptep, pte_t pte)
| ^~~~~~~
arch/arm64/include/asm/pgtable.h:264:20: error: static declaration of 'set_pte' follows non-static declaration
include/linux/pgtable.h:238:17: note: previous implicit declaration of 'set_pte' with type 'void(pte_t *, pte_t)'
238 | set_pte(ptep, pte);
| ^~~~~~~
arch/arm64/include/asm/pgtable.h:349:20: error: redefinition of 'set_ptes'
349 | static inline void set_ptes(struct mm_struct *mm, unsigned long addr,
| ^~~~~~~~
include/linux/pgtable.h:231:20: note: previous definition of 'set_ptes' with type 'void(struct mm_struct *, long unsigned int, pte_t *, pte_t, unsigned int)'
231 | static inline void set_ptes(struct mm_struct *mm, unsigned long addr,
| ^~~~~~~~
>> arch/arm64/include/asm/pgtable.h:534:20: warning: conflicting types for 'set_pmd_at'; have 'void(struct mm_struct *, long unsigned int, pmd_t *, pmd_t)'
534 | static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
| ^~~~~~~~~~
>> arch/arm64/include/asm/pgtable.h:534:20: error: static declaration of 'set_pmd_at' follows non-static declaration
include/linux/pgtable.h:321:17: note: previous implicit declaration of 'set_pmd_at' with type 'void(struct mm_struct *, long unsigned int, pmd_t *, pmd_t)'
321 | set_pmd_at(vma->vm_mm, address, pmdp, pmd_mkold(pmd));
| ^~~~~~~~~~
arch/arm64/include/asm/pgtable.h:557: warning: "pgprot_nx" redefined
557 | #define pgprot_nx(prot) \
|
include/linux/pgtable.h:1099: note: this is the location of the previous definition
1099 | #define pgprot_nx(prot) (prot)
|
arch/arm64/include/asm/pgtable.h:563: warning: "pgprot_noncached" redefined
563 | #define pgprot_noncached(prot) \
|
include/linux/pgtable.h:1103: note: this is the location of the previous definition
1103 | #define pgprot_noncached(prot) (prot)
|
arch/arm64/include/asm/pgtable.h:565: warning: "pgprot_writecombine" redefined
565 | #define pgprot_writecombine(prot) \
|
include/linux/pgtable.h:1107: note: this is the location of the previous definition
1107 | #define pgprot_writecombine pgprot_noncached
|
arch/arm64/include/asm/pgtable.h:567: warning: "pgprot_device" redefined
567 | #define pgprot_device(prot) \
|
include/linux/pgtable.h:1115: note: this is the location of the previous definition
1115 | #define pgprot_device pgprot_noncached
|
arch/arm64/include/asm/pgtable.h:571: warning: "pgprot_mhp" redefined
571 | #define pgprot_mhp pgprot_tagged
|
include/linux/pgtable.h:1119: note: this is the location of the previous definition
1119 | #define pgprot_mhp(prot) (prot)
|
arch/arm64/include/asm/pgtable.h:595: warning: "pmd_leaf" redefined
595 | #define pmd_leaf(pmd) (pmd_present(pmd) && !pmd_table(pmd))
|
include/linux/pgtable.h:1634: note: this is the location of the previous definition
1634 | #define pmd_leaf(x) 0
|
arch/arm64/include/asm/pgtable.h:598: warning: "pmd_leaf_size" redefined
598 | #define pmd_leaf_size(pmd) (pmd_cont(pmd) ? CONT_PMD_SIZE : PMD_SIZE)
|
include/linux/pgtable.h:1647: note: this is the location of the previous definition
1647 | #define pmd_leaf_size(x) PMD_SIZE
|
arch/arm64/include/asm/pgtable.h:599: warning: "pte_leaf_size" redefined
599 | #define pte_leaf_size(pte) (pte_cont(pte) ? CONT_PTE_SIZE : PAGE_SIZE)
|
include/linux/pgtable.h:1650: note: this is the location of the previous definition
1650 | #define pte_leaf_size(x) PAGE_SIZE
|
>> arch/arm64/include/asm/pgtable.h:643:20: warning: conflicting types for 'pmd_clear'; have 'void(pmd_t *)'
643 | static inline void pmd_clear(pmd_t *pmdp)
| ^~~~~~~~~
>> arch/arm64/include/asm/pgtable.h:643:20: error: static declaration of 'pmd_clear' follows non-static declaration
include/linux/pgtable.h:505:9: note: previous implicit declaration of 'pmd_clear' with type 'void(pmd_t *)'
505 | pmd_clear(pmdp);
| ^~~~~~~~~
arch/arm64/include/asm/pgtable.h:653:29: error: conflicting types for 'pmd_page_vaddr'; have 'long unsigned int(pmd_t)'
653 | static inline unsigned long pmd_page_vaddr(pmd_t pmd)
| ^~~~~~~~~~~~~~
include/linux/pgtable.h:94:25: note: previous implicit declaration of 'pmd_page_vaddr' with type 'int()'
94 | return (pte_t *)pmd_page_vaddr(*pmd) + pte_index(address);
| ^~~~~~~~~~~~~~
arch/arm64/include/asm/pgtable.h:684: warning: "pud_leaf" redefined
684 | #define pud_leaf(pud) (pud_present(pud) && !pud_table(pud))
|
include/linux/pgtable.h:1631: note: this is the location of the previous definition
1631 | #define pud_leaf(x) 0
|
>> arch/arm64/include/asm/pgtable.h:706:20: warning: conflicting types for 'pud_clear'; have 'void(pud_t *)'
706 | static inline void pud_clear(pud_t *pudp)
| ^~~~~~~~~
>> arch/arm64/include/asm/pgtable.h:706:20: error: static declaration of 'pud_clear' follows non-static declaration
include/linux/pgtable.h:518:9: note: previous implicit declaration of 'pud_clear' with type 'void(pud_t *)'
518 | pud_clear(pudp);
| ^~~~~~~~~
arch/arm64/include/asm/pgtable.h:716:22: error: conflicting types for 'pud_pgtable'; have 'pmd_t *(pud_t)'
716 | static inline pmd_t *pud_pgtable(pud_t pud)
| ^~~~~~~~~~~
include/linux/pgtable.h:123:16: note: previous implicit declaration of 'pud_pgtable' with type 'int()'
123 | return pud_pgtable(*pud) + pmd_index(address);
| ^~~~~~~~~~~
>> arch/arm64/include/asm/pgtable.h:844:19: error: static declaration of 'pmdp_set_access_flags' follows non-static declaration
844 | static inline int pmdp_set_access_flags(struct vm_area_struct *vma,
| ^~~~~~~~~~~~~~~~~~~~~
include/linux/pgtable.h:257:12: note: previous declaration of 'pmdp_set_access_flags' with type 'int(struct vm_area_struct *, long unsigned int, pmd_t *, pmd_t, int)'
257 | extern int pmdp_set_access_flags(struct vm_area_struct *vma,
| ^~~~~~~~~~~~~~~~~~~~~
arch/arm64/include/asm/pgtable.h:898:19: error: redefinition of 'ptep_test_and_clear_young'
898 | static inline int ptep_test_and_clear_young(struct vm_area_struct *vma,
| ^~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/pgtable.h:296:19: note: previous definition of 'ptep_test_and_clear_young' with type 'int(struct vm_area_struct *, long unsigned int, pte_t *)'
296 | static inline int ptep_test_and_clear_young(struct vm_area_struct *vma,
| ^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/include/asm/pgtable.h:906:19: error: static declaration of 'ptep_clear_flush_young' follows non-static declaration
906 | static inline int ptep_clear_flush_young(struct vm_area_struct *vma,
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/pgtable.h:336:5: note: previous declaration of 'ptep_clear_flush_young' with type 'int(struct vm_area_struct *, long unsigned int, pte_t *)'
336 | int ptep_clear_flush_young(struct vm_area_struct *vma,
| ^~~~~~~~~~~~~~~~~~~~~~
>> arch/arm64/include/asm/pgtable.h:928:19: error: redefinition of 'pmdp_test_and_clear_young'
928 | static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
| ^~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/pgtable.h:312:19: note: previous definition of 'pmdp_test_and_clear_young' with type 'int(struct vm_area_struct *, long unsigned int, pmd_t *)'
312 | static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
| ^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/include/asm/pgtable.h:937:21: error: redefinition of 'ptep_get_and_clear'
937 | static inline pte_t ptep_get_and_clear(struct mm_struct *mm,
| ^~~~~~~~~~~~~~~~~~
include/linux/pgtable.h:397:21: note: previous definition of 'ptep_get_and_clear' with type 'pte_t(struct mm_struct *, long unsigned int, pte_t *)'
397 | static inline pte_t ptep_get_and_clear(struct mm_struct *mm,
| ^~~~~~~~~~~~~~~~~~
>> arch/arm64/include/asm/pgtable.h:949:21: error: redefinition of 'pmdp_huge_get_and_clear'
949 | static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
| ^~~~~~~~~~~~~~~~~~~~~~~
include/linux/pgtable.h:499:21: note: previous definition of 'pmdp_huge_get_and_clear' with type 'pmd_t(struct mm_struct *, long unsigned int, pmd_t *)'
499 | static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/include/asm/pgtable.h:965:20: error: redefinition of 'ptep_set_wrprotect'
965 | static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long address, pte_t *ptep)
| ^~~~~~~~~~~~~~~~~~
include/linux/pgtable.h:618:20: note: previous definition of 'ptep_set_wrprotect' with type 'void(struct mm_struct *, long unsigned int, pte_t *)'
618 | static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long address, pte_t *ptep)
| ^~~~~~~~~~~~~~~~~~
>> arch/arm64/include/asm/pgtable.h:980:20: error: redefinition of 'pmdp_set_wrprotect'
980 | static inline void pmdp_set_wrprotect(struct mm_struct *mm,
| ^~~~~~~~~~~~~~~~~~
include/linux/pgtable.h:643:20: note: previous definition of 'pmdp_set_wrprotect' with type 'void(struct mm_struct *, long unsigned int, pmd_t *)'
643 | static inline void pmdp_set_wrprotect(struct mm_struct *mm,
| ^~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
..
vim +321 include/linux/pgtable.h
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 309
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 310 #ifndef __HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG
eed9a328aa1ae6 include/linux/pgtable.h Yu Zhao 2022-09-18 311 #if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG)
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 312 static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 313 unsigned long address,
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 314 pmd_t *pmdp)
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 315 {
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 316 pmd_t pmd = *pmdp;
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 317 int r = 1;
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 318 if (!pmd_young(pmd))
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 319 r = 0;
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 320 else
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 @321 set_pmd_at(vma->vm_mm, address, pmdp, pmd_mkold(pmd));
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 322 return r;
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 323 }
bd5e88ad72b26e include/asm-generic/pgtable.h Vineet Gupta 2015-07-09 324 #else
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 325 static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 326 unsigned long address,
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 327 pmd_t *pmdp)
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 328 {
bd5e88ad72b26e include/asm-generic/pgtable.h Vineet Gupta 2015-07-09 329 BUILD_BUG();
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 330 return 0;
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 331 }
eed9a328aa1ae6 include/linux/pgtable.h Yu Zhao 2022-09-18 332 #endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG */
^1da177e4c3f41 include/asm-generic/pgtable.h Linus Torvalds 2005-04-16 333 #endif
^1da177e4c3f41 include/asm-generic/pgtable.h Linus Torvalds 2005-04-16 334
^1da177e4c3f41 include/asm-generic/pgtable.h Linus Torvalds 2005-04-16 335 #ifndef __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 336 int ptep_clear_flush_young(struct vm_area_struct *vma,
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 337 unsigned long address, pte_t *ptep);
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 338 #endif
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 339
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 340 #ifndef __HAVE_ARCH_PMDP_CLEAR_YOUNG_FLUSH
bd5e88ad72b26e include/asm-generic/pgtable.h Vineet Gupta 2015-07-09 341 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
bd5e88ad72b26e include/asm-generic/pgtable.h Vineet Gupta 2015-07-09 342 extern int pmdp_clear_flush_young(struct vm_area_struct *vma,
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 343 unsigned long address, pmd_t *pmdp);
bd5e88ad72b26e include/asm-generic/pgtable.h Vineet Gupta 2015-07-09 344 #else
bd5e88ad72b26e include/asm-generic/pgtable.h Vineet Gupta 2015-07-09 345 /*
bd5e88ad72b26e include/asm-generic/pgtable.h Vineet Gupta 2015-07-09 346 * Despite relevant to THP only, this API is called from generic rmap code
bd5e88ad72b26e include/asm-generic/pgtable.h Vineet Gupta 2015-07-09 347 * under PageTransHuge(), hence needs a dummy implementation for !THP
bd5e88ad72b26e include/asm-generic/pgtable.h Vineet Gupta 2015-07-09 348 */
bd5e88ad72b26e include/asm-generic/pgtable.h Vineet Gupta 2015-07-09 349 static inline int pmdp_clear_flush_young(struct vm_area_struct *vma,
bd5e88ad72b26e include/asm-generic/pgtable.h Vineet Gupta 2015-07-09 350 unsigned long address, pmd_t *pmdp)
bd5e88ad72b26e include/asm-generic/pgtable.h Vineet Gupta 2015-07-09 351 {
bd5e88ad72b26e include/asm-generic/pgtable.h Vineet Gupta 2015-07-09 352 BUILD_BUG();
bd5e88ad72b26e include/asm-generic/pgtable.h Vineet Gupta 2015-07-09 353 return 0;
bd5e88ad72b26e include/asm-generic/pgtable.h Vineet Gupta 2015-07-09 354 }
bd5e88ad72b26e include/asm-generic/pgtable.h Vineet Gupta 2015-07-09 355 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
^1da177e4c3f41 include/asm-generic/pgtable.h Linus Torvalds 2005-04-16 356 #endif
^1da177e4c3f41 include/asm-generic/pgtable.h Linus Torvalds 2005-04-16 357
4aaf269c768dba include/linux/pgtable.h Juergen Gross 2022-11-23 358 #ifndef arch_has_hw_nonleaf_pmd_young
4aaf269c768dba include/linux/pgtable.h Juergen Gross 2022-11-23 359 /*
4aaf269c768dba include/linux/pgtable.h Juergen Gross 2022-11-23 360 * Return whether the accessed bit in non-leaf PMD entries is supported on the
4aaf269c768dba include/linux/pgtable.h Juergen Gross 2022-11-23 361 * local CPU.
4aaf269c768dba include/linux/pgtable.h Juergen Gross 2022-11-23 362 */
4aaf269c768dba include/linux/pgtable.h Juergen Gross 2022-11-23 363 static inline bool arch_has_hw_nonleaf_pmd_young(void)
4aaf269c768dba include/linux/pgtable.h Juergen Gross 2022-11-23 364 {
4aaf269c768dba include/linux/pgtable.h Juergen Gross 2022-11-23 365 return IS_ENABLED(CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG);
4aaf269c768dba include/linux/pgtable.h Juergen Gross 2022-11-23 366 }
4aaf269c768dba include/linux/pgtable.h Juergen Gross 2022-11-23 367 #endif
4aaf269c768dba include/linux/pgtable.h Juergen Gross 2022-11-23 368
e1fd09e3d1dd4a include/linux/pgtable.h Yu Zhao 2022-09-18 369 #ifndef arch_has_hw_pte_young
e1fd09e3d1dd4a include/linux/pgtable.h Yu Zhao 2022-09-18 370 /*
e1fd09e3d1dd4a include/linux/pgtable.h Yu Zhao 2022-09-18 371 * Return whether the accessed bit is supported on the local CPU.
e1fd09e3d1dd4a include/linux/pgtable.h Yu Zhao 2022-09-18 372 *
e1fd09e3d1dd4a include/linux/pgtable.h Yu Zhao 2022-09-18 373 * This stub assumes accessing through an old PTE triggers a page fault.
e1fd09e3d1dd4a include/linux/pgtable.h Yu Zhao 2022-09-18 374 * Architectures that automatically set the access bit should overwrite it.
e1fd09e3d1dd4a include/linux/pgtable.h Yu Zhao 2022-09-18 375 */
e1fd09e3d1dd4a include/linux/pgtable.h Yu Zhao 2022-09-18 376 static inline bool arch_has_hw_pte_young(void)
e1fd09e3d1dd4a include/linux/pgtable.h Yu Zhao 2022-09-18 377 {
e1fd09e3d1dd4a include/linux/pgtable.h Yu Zhao 2022-09-18 378 return false;
e1fd09e3d1dd4a include/linux/pgtable.h Yu Zhao 2022-09-18 379 }
e1fd09e3d1dd4a include/linux/pgtable.h Yu Zhao 2022-09-18 380 #endif
e1fd09e3d1dd4a include/linux/pgtable.h Yu Zhao 2022-09-18 381
e5136e876581ba include/linux/pgtable.h Rick Edgecombe 2023-06-12 382 #ifndef arch_check_zapped_pte
e5136e876581ba include/linux/pgtable.h Rick Edgecombe 2023-06-12 383 static inline void arch_check_zapped_pte(struct vm_area_struct *vma,
e5136e876581ba include/linux/pgtable.h Rick Edgecombe 2023-06-12 384 pte_t pte)
e5136e876581ba include/linux/pgtable.h Rick Edgecombe 2023-06-12 385 {
e5136e876581ba include/linux/pgtable.h Rick Edgecombe 2023-06-12 386 }
e5136e876581ba include/linux/pgtable.h Rick Edgecombe 2023-06-12 387 #endif
e5136e876581ba include/linux/pgtable.h Rick Edgecombe 2023-06-12 388
e5136e876581ba include/linux/pgtable.h Rick Edgecombe 2023-06-12 389 #ifndef arch_check_zapped_pmd
e5136e876581ba include/linux/pgtable.h Rick Edgecombe 2023-06-12 390 static inline void arch_check_zapped_pmd(struct vm_area_struct *vma,
e5136e876581ba include/linux/pgtable.h Rick Edgecombe 2023-06-12 391 pmd_t pmd)
e5136e876581ba include/linux/pgtable.h Rick Edgecombe 2023-06-12 392 {
e5136e876581ba include/linux/pgtable.h Rick Edgecombe 2023-06-12 393 }
e5136e876581ba include/linux/pgtable.h Rick Edgecombe 2023-06-12 394 #endif
e5136e876581ba include/linux/pgtable.h Rick Edgecombe 2023-06-12 395
^1da177e4c3f41 include/asm-generic/pgtable.h Linus Torvalds 2005-04-16 396 #ifndef __HAVE_ARCH_PTEP_GET_AND_CLEAR
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 397 static inline pte_t ptep_get_and_clear(struct mm_struct *mm,
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 398 unsigned long address,
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 399 pte_t *ptep)
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 400 {
c33c794828f212 include/linux/pgtable.h Ryan Roberts 2023-06-12 401 pte_t pte = ptep_get(ptep);
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 402 pte_clear(mm, address, ptep);
aa232204c46894 include/linux/pgtable.h Kemeng Shi 2023-07-14 403 page_table_check_pte_clear(mm, pte);
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 404 return pte;
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 405 }
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 406 #endif
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 407
de8c8e52836d00 include/linux/pgtable.h Tong Tiangen 2022-05-12 408 static inline void ptep_clear(struct mm_struct *mm, unsigned long addr,
de8c8e52836d00 include/linux/pgtable.h Tong Tiangen 2022-05-12 409 pte_t *ptep)
de8c8e52836d00 include/linux/pgtable.h Tong Tiangen 2022-05-12 410 {
de8c8e52836d00 include/linux/pgtable.h Tong Tiangen 2022-05-12 411 ptep_get_and_clear(mm, addr, ptep);
de8c8e52836d00 include/linux/pgtable.h Tong Tiangen 2022-05-12 412 }
de8c8e52836d00 include/linux/pgtable.h Tong Tiangen 2022-05-12 413
6ca297d4784625 include/linux/pgtable.h Peter Zijlstra 2022-10-21 414 #ifdef CONFIG_GUP_GET_PXX_LOW_HIGH
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 415 /*
93b3037a148275 include/linux/pgtable.h Peter Zijlstra 2020-11-26 416 * For walking the pagetables without holding any locks. Some architectures
93b3037a148275 include/linux/pgtable.h Peter Zijlstra 2020-11-26 417 * (eg x86-32 PAE) cannot load the entries atomically without using expensive
93b3037a148275 include/linux/pgtable.h Peter Zijlstra 2020-11-26 418 * instructions. We are guaranteed that a PTE will only either go from not
93b3037a148275 include/linux/pgtable.h Peter Zijlstra 2020-11-26 419 * present to present, or present to not present -- it will not switch to a
93b3037a148275 include/linux/pgtable.h Peter Zijlstra 2020-11-26 420 * completely different present page without a TLB flush inbetween; which we
93b3037a148275 include/linux/pgtable.h Peter Zijlstra 2020-11-26 421 * are blocking by holding interrupts off.
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 422 *
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 423 * Setting ptes from not present to present goes:
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 424 *
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 425 * ptep->pte_high = h;
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 426 * smp_wmb();
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 427 * ptep->pte_low = l;
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 428 *
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 429 * And present to not present goes:
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 430 *
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 431 * ptep->pte_low = 0;
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 432 * smp_wmb();
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 433 * ptep->pte_high = 0;
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 434 *
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 435 * We must ensure here that the load of pte_low sees 'l' IFF pte_high sees 'h'.
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 436 * We load pte_high *after* loading pte_low, which ensures we don't see an older
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 437 * value of pte_high. *Then* we recheck pte_low, which ensures that we haven't
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 438 * picked up a changed pte high. We might have gotten rubbish values from
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 439 * pte_low and pte_high, but we are guaranteed that pte_low will not have the
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 440 * present bit set *unless* it is 'l'. Because get_user_pages_fast() only
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 441 * operates on present ptes we're safe.
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 442 */
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 443 static inline pte_t ptep_get_lockless(pte_t *ptep)
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 444 {
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 445 pte_t pte;
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 446
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 447 do {
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 448 pte.pte_low = ptep->pte_low;
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 449 smp_rmb();
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 450 pte.pte_high = ptep->pte_high;
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 451 smp_rmb();
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 452 } while (unlikely(pte.pte_low != ptep->pte_low));
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 453
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 454 return pte;
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 455 }
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 456 #define ptep_get_lockless ptep_get_lockless
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 457
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 458 #if CONFIG_PGTABLE_LEVELS > 2
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 459 static inline pmd_t pmdp_get_lockless(pmd_t *pmdp)
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 460 {
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 461 pmd_t pmd;
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 462
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 463 do {
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 464 pmd.pmd_low = pmdp->pmd_low;
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 465 smp_rmb();
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 466 pmd.pmd_high = pmdp->pmd_high;
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 467 smp_rmb();
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 468 } while (unlikely(pmd.pmd_low != pmdp->pmd_low));
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 469
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 470 return pmd;
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 471 }
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 472 #define pmdp_get_lockless pmdp_get_lockless
146b42e07494e4 include/linux/pgtable.h Hugh Dickins 2023-07-11 473 #define pmdp_get_lockless_sync() tlb_remove_table_sync_one()
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 474 #endif /* CONFIG_PGTABLE_LEVELS > 2 */
6ca297d4784625 include/linux/pgtable.h Peter Zijlstra 2022-10-21 475 #endif /* CONFIG_GUP_GET_PXX_LOW_HIGH */
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 476
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 477 /*
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 478 * We require that the PTE can be read atomically.
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 479 */
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 480 #ifndef ptep_get_lockless
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 481 static inline pte_t ptep_get_lockless(pte_t *ptep)
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 482 {
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 483 return ptep_get(ptep);
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 484 }
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 485 #endif
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 486
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 487 #ifndef pmdp_get_lockless
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 488 static inline pmd_t pmdp_get_lockless(pmd_t *pmdp)
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 489 {
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 490 return pmdp_get(pmdp);
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 491 }
146b42e07494e4 include/linux/pgtable.h Hugh Dickins 2023-07-11 492 static inline void pmdp_get_lockless_sync(void)
146b42e07494e4 include/linux/pgtable.h Hugh Dickins 2023-07-11 493 {
146b42e07494e4 include/linux/pgtable.h Hugh Dickins 2023-07-11 494 }
024d232ae4fcd7 include/linux/pgtable.h Peter Zijlstra 2020-11-26 495 #endif
2a4a06da8a4b93 include/linux/pgtable.h Peter Zijlstra 2020-11-13 496
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 497 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
a00cc7d9dd93d6 include/asm-generic/pgtable.h Matthew Wilcox 2017-02-24 498 #ifndef __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR
8809aa2d28d741 include/asm-generic/pgtable.h Aneesh Kumar K.V 2015-06-24 499 static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 500 unsigned long address,
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 501 pmd_t *pmdp)
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 502 {
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 503 pmd_t pmd = *pmdp;
de8c8e52836d00 include/linux/pgtable.h Tong Tiangen 2022-05-12 504
2d28a2275c21d0 include/asm-generic/pgtable.h Catalin Marinas 2012-10-08 @505 pmd_clear(pmdp);
1831414cd729a3 include/linux/pgtable.h Kemeng Shi 2023-07-14 506 page_table_check_pmd_clear(mm, pmd);
de8c8e52836d00 include/linux/pgtable.h Tong Tiangen 2022-05-12 507
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 508 return pmd;
49b24d6b41c576 include/asm-generic/pgtable.h Nicolas Kaiser 2011-06-15 509 }
a00cc7d9dd93d6 include/asm-generic/pgtable.h Matthew Wilcox 2017-02-24 510 #endif /* __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR */
a00cc7d9dd93d6 include/asm-generic/pgtable.h Matthew Wilcox 2017-02-24 511 #ifndef __HAVE_ARCH_PUDP_HUGE_GET_AND_CLEAR
a00cc7d9dd93d6 include/asm-generic/pgtable.h Matthew Wilcox 2017-02-24 512 static inline pud_t pudp_huge_get_and_clear(struct mm_struct *mm,
a00cc7d9dd93d6 include/asm-generic/pgtable.h Matthew Wilcox 2017-02-24 513 unsigned long address,
a00cc7d9dd93d6 include/asm-generic/pgtable.h Matthew Wilcox 2017-02-24 514 pud_t *pudp)
a00cc7d9dd93d6 include/asm-generic/pgtable.h Matthew Wilcox 2017-02-24 515 {
a00cc7d9dd93d6 include/asm-generic/pgtable.h Matthew Wilcox 2017-02-24 516 pud_t pud = *pudp;
a00cc7d9dd93d6 include/asm-generic/pgtable.h Matthew Wilcox 2017-02-24 517
a00cc7d9dd93d6 include/asm-generic/pgtable.h Matthew Wilcox 2017-02-24 @518 pud_clear(pudp);
931c38e16499a0 include/linux/pgtable.h Kemeng Shi 2023-07-14 519 page_table_check_pud_clear(mm, pud);
de8c8e52836d00 include/linux/pgtable.h Tong Tiangen 2022-05-12 520
a00cc7d9dd93d6 include/asm-generic/pgtable.h Matthew Wilcox 2017-02-24 521 return pud;
a00cc7d9dd93d6 include/asm-generic/pgtable.h Matthew Wilcox 2017-02-24 522 }
a00cc7d9dd93d6 include/asm-generic/pgtable.h Matthew Wilcox 2017-02-24 523 #endif /* __HAVE_ARCH_PUDP_HUGE_GET_AND_CLEAR */
e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 524 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
^1da177e4c3f41 include/asm-generic/pgtable.h Linus Torvalds 2005-04-16 525
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