From: kernel test robot <lkp@intel.com>
To: Kent Overstreet <kent.overstreet@linux.dev>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev
Subject: [koverstreet-bcachefs:time_stats_sched 63/63] include/asm-generic/pgalloc.h:112:2: error: call to undeclared function 'pagetable_dtor_free'; ISO C99 and later do not support implicit function declarations
Date: Sun, 9 Feb 2025 06:08:26 +0800 [thread overview]
Message-ID: <202502090524.WcPTOmwj-lkp@intel.com> (raw)
tree: https://github.com/koverstreet/bcachefs time_stats_sched
head: d9b1e57f3b38d16fdd7177f3b9636dcbb4c749ed
commit: d9b1e57f3b38d16fdd7177f3b9636dcbb4c749ed [63/63] sched_wakeup_backtrace debugfs
config: hexagon-randconfig-002-20250209 (https://download.01.org/0day-ci/archive/20250209/202502090524.WcPTOmwj-lkp@intel.com/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project 6807164500e9920638e2ab0cdb4bf8321d24f8eb)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250209/202502090524.WcPTOmwj-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202502090524.WcPTOmwj-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from kernel/sched/timestats_bt.c:6:
In file included from include/linux/mmu_context.h:5:
In file included from arch/hexagon/include/asm/mmu_context.h:15:
In file included from arch/hexagon/include/asm/pgalloc.h:14:
include/asm-generic/pgalloc.h:21:26: error: call to undeclared function 'pagetable_alloc_noprof'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
21 | struct ptdesc *ptdesc = pagetable_alloc_noprof(GFP_PGTABLE_KERNEL &
| ^
include/asm-generic/pgalloc.h:21:17: error: incompatible integer to pointer conversion initializing 'struct ptdesc *' with an expression of type 'int' [-Wint-conversion]
21 | struct ptdesc *ptdesc = pagetable_alloc_noprof(GFP_PGTABLE_KERNEL &
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
22 | ~__GFP_HIGHMEM, 0);
| ~~~~~~~~~~~~~~~~~~
include/asm-generic/pgalloc.h:26:9: error: call to undeclared function 'ptdesc_address'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
26 | return ptdesc_address(ptdesc);
| ^
include/asm-generic/pgalloc.h:26:9: error: incompatible integer to pointer conversion returning 'int' from a function with result type 'pte_t *' [-Wint-conversion]
26 | return ptdesc_address(ptdesc);
| ^~~~~~~~~~~~~~~~~~~~~~
include/asm-generic/pgalloc.h:51:2: error: call to undeclared function 'pagetable_free'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
51 | pagetable_free(virt_to_ptdesc(pte));
| ^
include/asm-generic/pgalloc.h:51:17: error: call to undeclared function 'virt_to_ptdesc'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
51 | pagetable_free(virt_to_ptdesc(pte));
| ^
include/asm-generic/pgalloc.h:51:17: note: did you mean 'irq_to_desc'?
include/linux/irqnr.h:10:25: note: 'irq_to_desc' declared here
10 | extern struct irq_desc *irq_to_desc(unsigned int irq);
| ^
In file included from kernel/sched/timestats_bt.c:6:
In file included from include/linux/mmu_context.h:5:
In file included from arch/hexagon/include/asm/mmu_context.h:15:
In file included from arch/hexagon/include/asm/pgalloc.h:14:
include/asm-generic/pgalloc.h:70:11: error: call to undeclared function 'pagetable_alloc_noprof'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
70 | ptdesc = pagetable_alloc_noprof(gfp, 0);
| ^
include/asm-generic/pgalloc.h:70:9: error: incompatible integer to pointer conversion assigning to 'struct ptdesc *' from 'int' [-Wint-conversion]
70 | ptdesc = pagetable_alloc_noprof(gfp, 0);
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/asm-generic/pgalloc.h:73:7: error: call to undeclared function 'pagetable_pte_ctor'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
73 | if (!pagetable_pte_ctor(ptdesc)) {
| ^
include/asm-generic/pgalloc.h:74:3: error: call to undeclared function 'pagetable_free'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
74 | pagetable_free(ptdesc);
| ^
>> include/asm-generic/pgalloc.h:112:2: error: call to undeclared function 'pagetable_dtor_free'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
112 | pagetable_dtor_free(ptdesc);
| ^
include/asm-generic/pgalloc.h:270:11: error: call to undeclared function 'pagetable_alloc_noprof'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
270 | ptdesc = pagetable_alloc_noprof(gfp, order);
| ^
include/asm-generic/pgalloc.h:270:9: error: incompatible integer to pointer conversion assigning to 'struct ptdesc *' from 'int' [-Wint-conversion]
270 | ptdesc = pagetable_alloc_noprof(gfp, order);
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/asm-generic/pgalloc.h:274:2: error: call to undeclared function 'pagetable_pgd_ctor'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
274 | pagetable_pgd_ctor(ptdesc);
| ^
include/asm-generic/pgalloc.h:275:9: error: call to undeclared function 'ptdesc_address'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
275 | return ptdesc_address(ptdesc);
| ^
>> include/asm-generic/pgalloc.h:275:9: error: incompatible integer to pointer conversion returning 'int' from a function with result type 'pgd_t *' [-Wint-conversion]
275 | return ptdesc_address(ptdesc);
| ^~~~~~~~~~~~~~~~~~~~~~
include/asm-generic/pgalloc.h:281:26: error: call to undeclared function 'virt_to_ptdesc'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
281 | struct ptdesc *ptdesc = virt_to_ptdesc(pgd);
| ^
include/asm-generic/pgalloc.h:281:17: error: incompatible integer to pointer conversion initializing 'struct ptdesc *' with an expression of type 'int' [-Wint-conversion]
281 | struct ptdesc *ptdesc = virt_to_ptdesc(pgd);
| ^ ~~~~~~~~~~~~~~~~~~~
include/asm-generic/pgalloc.h:284:2: error: call to undeclared function 'pagetable_dtor_free'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
284 | pagetable_dtor_free(ptdesc);
| ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
vim +/pagetable_dtor_free +112 include/asm-generic/pgalloc.h
5c01b46bb6bb8f Arnd Bergmann 2009-05-13 97
5fba4af4456b5d Mike Rapoport 2019-07-11 98 /*
5fba4af4456b5d Mike Rapoport 2019-07-11 99 * Should really implement gc for free page table pages. This could be
5fba4af4456b5d Mike Rapoport 2019-07-11 100 * done with a reference count in struct page.
5fba4af4456b5d Mike Rapoport 2019-07-11 101 */
5fba4af4456b5d Mike Rapoport 2019-07-11 102
5fba4af4456b5d Mike Rapoport 2019-07-11 103 /**
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 104) * pte_free - free PTE-level user page table memory
5fba4af4456b5d Mike Rapoport 2019-07-11 105 * @mm: the mm_struct of the current context
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 106) * @pte_page: the `struct page` referencing the ptdesc
5fba4af4456b5d Mike Rapoport 2019-07-11 107 */
5fba4af4456b5d Mike Rapoport 2019-07-11 108 static inline void pte_free(struct mm_struct *mm, struct page *pte_page)
5fba4af4456b5d Mike Rapoport 2019-07-11 109 {
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 110) struct ptdesc *ptdesc = page_ptdesc(pte_page);
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 111)
553e77529fb61e Qi Zheng 2025-01-08 @112 pagetable_dtor_free(ptdesc);
5fba4af4456b5d Mike Rapoport 2019-07-11 113 }
5fba4af4456b5d Mike Rapoport 2019-07-11 114
1355c31eeb7ea6 Mike Rapoport 2020-08-06 115
1355c31eeb7ea6 Mike Rapoport 2020-08-06 116 #if CONFIG_PGTABLE_LEVELS > 2
1355c31eeb7ea6 Mike Rapoport 2020-08-06 117
1355c31eeb7ea6 Mike Rapoport 2020-08-06 118 #ifndef __HAVE_ARCH_PMD_ALLOC_ONE
1355c31eeb7ea6 Mike Rapoport 2020-08-06 119 /**
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 120) * pmd_alloc_one - allocate memory for a PMD-level page table
1355c31eeb7ea6 Mike Rapoport 2020-08-06 121 * @mm: the mm_struct of the current context
1355c31eeb7ea6 Mike Rapoport 2020-08-06 122 *
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 123) * Allocate memory for a page table and ptdesc and runs pagetable_pmd_ctor().
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 124) *
1355c31eeb7ea6 Mike Rapoport 2020-08-06 125 * Allocations use %GFP_PGTABLE_USER in user context and
1355c31eeb7ea6 Mike Rapoport 2020-08-06 126 * %GFP_PGTABLE_KERNEL in kernel context.
1355c31eeb7ea6 Mike Rapoport 2020-08-06 127 *
1355c31eeb7ea6 Mike Rapoport 2020-08-06 128 * Return: pointer to the allocated memory or %NULL on error
1355c31eeb7ea6 Mike Rapoport 2020-08-06 129 */
2c321f3f70bc28 Suren Baghdasaryan 2024-04-14 130 static inline pmd_t *pmd_alloc_one_noprof(struct mm_struct *mm, unsigned long addr)
1355c31eeb7ea6 Mike Rapoport 2020-08-06 131 {
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 132) struct ptdesc *ptdesc;
1355c31eeb7ea6 Mike Rapoport 2020-08-06 133 gfp_t gfp = GFP_PGTABLE_USER;
1355c31eeb7ea6 Mike Rapoport 2020-08-06 134
1355c31eeb7ea6 Mike Rapoport 2020-08-06 135 if (mm == &init_mm)
1355c31eeb7ea6 Mike Rapoport 2020-08-06 136 gfp = GFP_PGTABLE_KERNEL;
2c321f3f70bc28 Suren Baghdasaryan 2024-04-14 137 ptdesc = pagetable_alloc_noprof(gfp, 0);
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 138) if (!ptdesc)
1355c31eeb7ea6 Mike Rapoport 2020-08-06 139 return NULL;
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 140) if (!pagetable_pmd_ctor(ptdesc)) {
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 141) pagetable_free(ptdesc);
1355c31eeb7ea6 Mike Rapoport 2020-08-06 142 return NULL;
1355c31eeb7ea6 Mike Rapoport 2020-08-06 143 }
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 144) return ptdesc_address(ptdesc);
1355c31eeb7ea6 Mike Rapoport 2020-08-06 145 }
2c321f3f70bc28 Suren Baghdasaryan 2024-04-14 146 #define pmd_alloc_one(...) alloc_hooks(pmd_alloc_one_noprof(__VA_ARGS__))
1355c31eeb7ea6 Mike Rapoport 2020-08-06 147 #endif
1355c31eeb7ea6 Mike Rapoport 2020-08-06 148
1355c31eeb7ea6 Mike Rapoport 2020-08-06 149 #ifndef __HAVE_ARCH_PMD_FREE
1355c31eeb7ea6 Mike Rapoport 2020-08-06 150 static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
1355c31eeb7ea6 Mike Rapoport 2020-08-06 151 {
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 152) struct ptdesc *ptdesc = virt_to_ptdesc(pmd);
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 153)
1355c31eeb7ea6 Mike Rapoport 2020-08-06 154 BUG_ON((unsigned long)pmd & (PAGE_SIZE-1));
553e77529fb61e Qi Zheng 2025-01-08 155 pagetable_dtor_free(ptdesc);
1355c31eeb7ea6 Mike Rapoport 2020-08-06 156 }
1355c31eeb7ea6 Mike Rapoport 2020-08-06 157 #endif
1355c31eeb7ea6 Mike Rapoport 2020-08-06 158
1355c31eeb7ea6 Mike Rapoport 2020-08-06 159 #endif /* CONFIG_PGTABLE_LEVELS > 2 */
1355c31eeb7ea6 Mike Rapoport 2020-08-06 160
d9e8b929670b4f Mike Rapoport 2020-08-06 161 #if CONFIG_PGTABLE_LEVELS > 3
d9e8b929670b4f Mike Rapoport 2020-08-06 162
2c321f3f70bc28 Suren Baghdasaryan 2024-04-14 163 static inline pud_t *__pud_alloc_one_noprof(struct mm_struct *mm, unsigned long addr)
60639f74c2f4fc Alexandre Ghiti 2021-12-06 164 {
60639f74c2f4fc Alexandre Ghiti 2021-12-06 165 gfp_t gfp = GFP_PGTABLE_USER;
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 166) struct ptdesc *ptdesc;
60639f74c2f4fc Alexandre Ghiti 2021-12-06 167
60639f74c2f4fc Alexandre Ghiti 2021-12-06 168 if (mm == &init_mm)
60639f74c2f4fc Alexandre Ghiti 2021-12-06 169 gfp = GFP_PGTABLE_KERNEL;
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 170) gfp &= ~__GFP_HIGHMEM;
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 171)
2c321f3f70bc28 Suren Baghdasaryan 2024-04-14 172 ptdesc = pagetable_alloc_noprof(gfp, 0);
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 173) if (!ptdesc)
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 174) return NULL;
55d2a0bd5eadaa Baolin Wang 2023-09-18 175
55d2a0bd5eadaa Baolin Wang 2023-09-18 176 pagetable_pud_ctor(ptdesc);
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 177) return ptdesc_address(ptdesc);
60639f74c2f4fc Alexandre Ghiti 2021-12-06 178 }
2c321f3f70bc28 Suren Baghdasaryan 2024-04-14 179 #define __pud_alloc_one(...) alloc_hooks(__pud_alloc_one_noprof(__VA_ARGS__))
60639f74c2f4fc Alexandre Ghiti 2021-12-06 180
9922c1deff915c Mike Rapoport 2020-08-14 181 #ifndef __HAVE_ARCH_PUD_ALLOC_ONE
d9e8b929670b4f Mike Rapoport 2020-08-06 182 /**
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 183) * pud_alloc_one - allocate memory for a PUD-level page table
d9e8b929670b4f Mike Rapoport 2020-08-06 184 * @mm: the mm_struct of the current context
d9e8b929670b4f Mike Rapoport 2020-08-06 185 *
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 186) * Allocate memory for a page table using %GFP_PGTABLE_USER for user context
c787ae5b391496 Vishal Moola (Oracle 2023-08-07 187) * and %GFP_PGTABLE_KERNEL for kernel context.
d9e8b929670b4f Mike Rapoport 2020-08-06 188 *
d9e8b929670b4f Mike Rapoport 2020-08-06 189 * Return: pointer to the allocated memory or %NULL on error
d9e8b929670b4f Mike Rapoport 2020-08-06 190 */
2c321f3f70bc28 Suren Baghdasaryan 2024-04-14 191 static inline pud_t *pud_alloc_one_noprof(struct mm_struct *mm, unsigned long addr)
d9e8b929670b4f Mike Rapoport 2020-08-06 192 {
2c321f3f70bc28 Suren Baghdasaryan 2024-04-14 193 return __pud_alloc_one_noprof(mm, addr);
d9e8b929670b4f Mike Rapoport 2020-08-06 194 }
2c321f3f70bc28 Suren Baghdasaryan 2024-04-14 195 #define pud_alloc_one(...) alloc_hooks(pud_alloc_one_noprof(__VA_ARGS__))
d9e8b929670b4f Mike Rapoport 2020-08-06 196 #endif
d9e8b929670b4f Mike Rapoport 2020-08-06 197
60639f74c2f4fc Alexandre Ghiti 2021-12-06 198 static inline void __pud_free(struct mm_struct *mm, pud_t *pud)
d9e8b929670b4f Mike Rapoport 2020-08-06 199 {
55d2a0bd5eadaa Baolin Wang 2023-09-18 200 struct ptdesc *ptdesc = virt_to_ptdesc(pud);
55d2a0bd5eadaa Baolin Wang 2023-09-18 201
d9e8b929670b4f Mike Rapoport 2020-08-06 202 BUG_ON((unsigned long)pud & (PAGE_SIZE-1));
553e77529fb61e Qi Zheng 2025-01-08 203 pagetable_dtor_free(ptdesc);
d9e8b929670b4f Mike Rapoport 2020-08-06 204 }
d9e8b929670b4f Mike Rapoport 2020-08-06 205
60639f74c2f4fc Alexandre Ghiti 2021-12-06 206 #ifndef __HAVE_ARCH_PUD_FREE
60639f74c2f4fc Alexandre Ghiti 2021-12-06 207 static inline void pud_free(struct mm_struct *mm, pud_t *pud)
60639f74c2f4fc Alexandre Ghiti 2021-12-06 208 {
60639f74c2f4fc Alexandre Ghiti 2021-12-06 209 __pud_free(mm, pud);
60639f74c2f4fc Alexandre Ghiti 2021-12-06 210 }
60639f74c2f4fc Alexandre Ghiti 2021-12-06 211 #endif
60639f74c2f4fc Alexandre Ghiti 2021-12-06 212
d9e8b929670b4f Mike Rapoport 2020-08-06 213 #endif /* CONFIG_PGTABLE_LEVELS > 3 */
d9e8b929670b4f Mike Rapoport 2020-08-06 214
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 215 #if CONFIG_PGTABLE_LEVELS > 4
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 216
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 217 static inline p4d_t *__p4d_alloc_one_noprof(struct mm_struct *mm, unsigned long addr)
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 218 {
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 219 gfp_t gfp = GFP_PGTABLE_USER;
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 220 struct ptdesc *ptdesc;
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 221
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 222 if (mm == &init_mm)
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 223 gfp = GFP_PGTABLE_KERNEL;
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 224 gfp &= ~__GFP_HIGHMEM;
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 225
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 226 ptdesc = pagetable_alloc_noprof(gfp, 0);
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 227 if (!ptdesc)
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 228 return NULL;
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 229
5fcf5fa6121817 Qi Zheng 2025-01-08 230 pagetable_p4d_ctor(ptdesc);
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 231 return ptdesc_address(ptdesc);
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 232 }
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 233 #define __p4d_alloc_one(...) alloc_hooks(__p4d_alloc_one_noprof(__VA_ARGS__))
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 234
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 235 #ifndef __HAVE_ARCH_P4D_ALLOC_ONE
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 236 static inline p4d_t *p4d_alloc_one_noprof(struct mm_struct *mm, unsigned long addr)
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 237 {
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 238 return __p4d_alloc_one_noprof(mm, addr);
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 239 }
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 240 #define p4d_alloc_one(...) alloc_hooks(p4d_alloc_one_noprof(__VA_ARGS__))
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 241 #endif
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 242
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 243 static inline void __p4d_free(struct mm_struct *mm, p4d_t *p4d)
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 244 {
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 245 struct ptdesc *ptdesc = virt_to_ptdesc(p4d);
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 246
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 247 BUG_ON((unsigned long)p4d & (PAGE_SIZE-1));
553e77529fb61e Qi Zheng 2025-01-08 248 pagetable_dtor_free(ptdesc);
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 249 }
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 250
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 251 #ifndef __HAVE_ARCH_P4D_FREE
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 252 static inline void p4d_free(struct mm_struct *mm, p4d_t *p4d)
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 253 {
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 254 if (!mm_p4d_folded(mm))
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 255 __p4d_free(mm, p4d);
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 256 }
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 257 #endif
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 258
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 259 #endif /* CONFIG_PGTABLE_LEVELS > 4 */
98a7e47faa3ec3 Kevin Brodsky 2025-01-08 260
a9b3c355c2e638 Kevin Brodsky 2025-01-03 261 static inline pgd_t *__pgd_alloc_noprof(struct mm_struct *mm, unsigned int order)
a9b3c355c2e638 Kevin Brodsky 2025-01-03 262 {
a9b3c355c2e638 Kevin Brodsky 2025-01-03 263 gfp_t gfp = GFP_PGTABLE_USER;
a9b3c355c2e638 Kevin Brodsky 2025-01-03 264 struct ptdesc *ptdesc;
a9b3c355c2e638 Kevin Brodsky 2025-01-03 265
a9b3c355c2e638 Kevin Brodsky 2025-01-03 266 if (mm == &init_mm)
a9b3c355c2e638 Kevin Brodsky 2025-01-03 267 gfp = GFP_PGTABLE_KERNEL;
a9b3c355c2e638 Kevin Brodsky 2025-01-03 268 gfp &= ~__GFP_HIGHMEM;
a9b3c355c2e638 Kevin Brodsky 2025-01-03 269
a9b3c355c2e638 Kevin Brodsky 2025-01-03 270 ptdesc = pagetable_alloc_noprof(gfp, order);
a9b3c355c2e638 Kevin Brodsky 2025-01-03 271 if (!ptdesc)
a9b3c355c2e638 Kevin Brodsky 2025-01-03 272 return NULL;
a9b3c355c2e638 Kevin Brodsky 2025-01-03 273
d95936a2267c11 Kevin Brodsky 2025-01-03 @274 pagetable_pgd_ctor(ptdesc);
a9b3c355c2e638 Kevin Brodsky 2025-01-03 @275 return ptdesc_address(ptdesc);
a9b3c355c2e638 Kevin Brodsky 2025-01-03 276 }
a9b3c355c2e638 Kevin Brodsky 2025-01-03 277 #define __pgd_alloc(...) alloc_hooks(__pgd_alloc_noprof(__VA_ARGS__))
a9b3c355c2e638 Kevin Brodsky 2025-01-03 278
:::::: The code at line 112 was first introduced by commit
:::::: 553e77529fb61e5520b839a0ce412a46cba996e0 mm: pgtable: introduce generic pagetable_dtor_free()
:::::: TO: Qi Zheng <zhengqi.arch@bytedance.com>
:::::: CC: Andrew Morton <akpm@linux-foundation.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2025-02-08 22:09 UTC|newest]
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