tree: https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git android13-5.15/ffa head: c6013f50f1ae0e42d14d51a06118779ead3047ef commit: 301c56064d723b03077257ccf5281b2c36cbb2ed [2846/4062] UPSTREAM: mm: add a field to store names for private anonymous memory config: x86_64-rhel-8.3-rust (https://download.01.org/0day-ci/archive/20231014/202310141451.95By0DoE-lkp@xxxxxxxxx/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231014/202310141451.95By0DoE-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202310141451.95By0DoE-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): include/linux/fs.h:3153:67: warning: unused parameter 'inode' [-Wunused-parameter] static inline void lockdep_annotate_inode_mutex_key(struct inode *inode) { }; ^ include/linux/fs.h:3585:45: warning: unused parameter 'fmt' [-Wunused-parameter] void __simple_attr_check_format(const char *fmt, ...) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:32: In file included from include/linux/oom.h:11: In file included from include/linux/mm.h:727: include/linux/huge_mm.h:306:43: warning: unused parameter 'pud' [-Wunused-parameter] static inline bool is_huge_zero_pud(pud_t pud) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:32: In file included from include/linux/oom.h:11: include/linux/mm.h:1529:52: warning: unused parameter 'page' [-Wunused-parameter] static inline u8 page_kasan_tag(const struct page *page) ^ include/linux/mm.h:1534:52: warning: unused parameter 'page' [-Wunused-parameter] static inline void page_kasan_tag_set(struct page *page, u8 tag) { } ^ include/linux/mm.h:1534:61: warning: unused parameter 'tag' [-Wunused-parameter] static inline void page_kasan_tag_set(struct page *page, u8 tag) { } ^ include/linux/mm.h:1535:54: warning: unused parameter 'page' [-Wunused-parameter] static inline void page_kasan_tag_reset(struct page *page) { } ^ include/linux/mm.h:1589:36: warning: unused parameter 'pfn' [-Wunused-parameter] unsigned long node, unsigned long pfn) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:32: In file included from include/linux/oom.h:11: In file included from include/linux/mm.h:1601: include/linux/vmstat.h:231:2: warning: comparison of integers of different signs: 'int' and 'unsigned int' [-Wsign-compare] for_each_online_cpu(cpu) ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/cpumask.h:789:36: note: expanded from macro 'for_each_online_cpu' #define for_each_online_cpu(cpu) for_each_cpu((cpu), cpu_online_mask) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/cpumask.h:243:9: note: expanded from macro 'for_each_cpu' (cpu) < nr_cpu_ids;) ~~~ ^ ~~~~~~~~~~ In file included from drivers/gpu/drm/i915/i915_drv.c:32: In file included from include/linux/oom.h:11: In file included from include/linux/mm.h:1601: include/linux/vmstat.h:419:15: warning: unused parameter 'migratetype' [-Wunused-parameter] int migratetype) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:32: In file included from include/linux/oom.h:11: include/linux/mm.h:2193:46: warning: unused parameter 'page' [-Wunused-parameter] static inline bool ptlock_alloc(struct page *page) ^ include/linux/mm.h:2198:45: warning: unused parameter 'page' [-Wunused-parameter] static inline void ptlock_free(struct page *page) ^ include/linux/mm.h:2208:57: warning: unused parameter 'mm' [-Wunused-parameter] static inline spinlock_t *pte_lockptr(struct mm_struct *mm, pmd_t *pmd) ^ include/linux/mm.h:2299:57: warning: unused parameter 'mm' [-Wunused-parameter] static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd) ^ include/linux/mm.h:2365:68: warning: unused parameter 'pud' [-Wunused-parameter] static inline spinlock_t *pud_lockptr(struct mm_struct *mm, pud_t *pud) ^ include/linux/mm.h:2973:55: warning: unused parameter 'page' [-Wunused-parameter] static inline void __kernel_poison_pages(struct page *page, int nunmpages) { } ^ include/linux/mm.h:2973:65: warning: unused parameter 'nunmpages' [-Wunused-parameter] static inline void __kernel_poison_pages(struct page *page, int nunmpages) { } ^ include/linux/mm.h:2974:53: warning: unused parameter 'page' [-Wunused-parameter] static inline void kernel_poison_pages(struct page *page, int numpages) { } ^ include/linux/mm.h:2974:63: warning: unused parameter 'numpages' [-Wunused-parameter] static inline void kernel_poison_pages(struct page *page, int numpages) { } ^ include/linux/mm.h:2975:55: warning: unused parameter 'page' [-Wunused-parameter] static inline void kernel_unpoison_pages(struct page *page, int numpages) { } ^ include/linux/mm.h:2975:65: warning: unused parameter 'numpages' [-Wunused-parameter] static inline void kernel_unpoison_pages(struct page *page, int numpages) { } ^ include/linux/mm.h:3034:59: warning: unused parameter 'page' [-Wunused-parameter] static inline void debug_pagealloc_map_pages(struct page *page, int numpages) {} ^ include/linux/mm.h:3034:69: warning: unused parameter 'numpages' [-Wunused-parameter] static inline void debug_pagealloc_map_pages(struct page *page, int numpages) {} ^ include/linux/mm.h:3035:61: warning: unused parameter 'page' [-Wunused-parameter] static inline void debug_pagealloc_unmap_pages(struct page *page, int numpages) {} ^ include/linux/mm.h:3035:71: warning: unused parameter 'numpages' [-Wunused-parameter] static inline void debug_pagealloc_unmap_pages(struct page *page, int numpages) {} ^ include/linux/mm.h:3219:47: warning: unused parameter 'page' [-Wunused-parameter] static inline bool page_is_guard(struct page *page) { return false; } ^ include/linux/mm.h:3292:41: warning: unused parameter 'mm' [-Wunused-parameter] madvise_set_anon_name(struct mm_struct *mm, unsigned long start, ^ >> include/linux/mm.h:3292:59: warning: unused parameter 'start' [-Wunused-parameter] madvise_set_anon_name(struct mm_struct *mm, unsigned long start, ^ >> include/linux/mm.h:3293:23: warning: unused parameter 'len_in' [-Wunused-parameter] unsigned long len_in, const char *name) { ^ include/linux/mm.h:3293:43: warning: unused parameter 'name' [-Wunused-parameter] unsigned long len_in, const char *name) { ^ In file included from drivers/gpu/drm/i915/i915_drv.c:34: In file included from include/linux/pci.h:38: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:10: include/linux/vtime.h:41:58: warning: unused parameter 'tsk' [-Wunused-parameter] static inline void vtime_account_irq(struct task_struct *tsk, unsigned int offset) { } ^ include/linux/vtime.h:41:76: warning: unused parameter 'offset' [-Wunused-parameter] static inline void vtime_account_irq(struct task_struct *tsk, unsigned int offset) { } ^ include/linux/vtime.h:42:62: warning: unused parameter 'tsk' [-Wunused-parameter] static inline void vtime_account_softirq(struct task_struct *tsk) { } ^ include/linux/vtime.h:43:62: warning: unused parameter 'tsk' [-Wunused-parameter] static inline void vtime_account_hardirq(struct task_struct *tsk) { } ^ include/linux/vtime.h:44:52: warning: unused parameter 'tsk' [-Wunused-parameter] static inline void vtime_flush(struct task_struct *tsk) { } ^ In file included from drivers/gpu/drm/i915/i915_drv.c:34: In file included from include/linux/pci.h:38: In file included from include/linux/interrupt.h:21: In file included from arch/x86/include/asm/sections.h:7: include/asm-generic/sections.h:70:53: warning: unused parameter 'addr' [-Wunused-parameter] static inline int arch_is_kernel_text(unsigned long addr) ^ include/asm-generic/sections.h:77:53: warning: unused parameter 'addr' [-Wunused-parameter] static inline int arch_is_kernel_data(unsigned long addr) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:34: In file included from include/linux/pci.h:38: include/linux/interrupt.h:416:88: warning: unused parameter 'flags' [-Wunused-parameter] static inline void disable_irq_nosync_lockdep_irqsave(unsigned int irq, unsigned long *flags) ^ include/linux/interrupt.h:440:83: warning: unused parameter 'flags' [-Wunused-parameter] static inline void enable_irq_lockdep_irqrestore(unsigned int irq, unsigned long *flags) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:34: include/linux/pci.h:1606:58: warning: unused parameter 'd' [-Wunused-parameter] static inline int pci_irqd_intx_xlate(struct irq_domain *d, ^ include/linux/pci.h:1607:31: warning: unused parameter 'node' [-Wunused-parameter] struct device_node *node, ^ include/linux/pci.h:1609:24: warning: unused parameter 'intsize' [-Wunused-parameter] unsigned int intsize, ^ include/linux/pci.h:1611:25: warning: unused parameter 'out_type' [-Wunused-parameter] unsigned int *out_type) ^ include/linux/pci.h:1666:50: warning: unused parameter 'dev' [-Wunused-parameter] static inline int pci_enable_ptm(struct pci_dev *dev, u8 *granularity) ^ include/linux/pci.h:1666:59: warning: unused parameter 'granularity' [-Wunused-parameter] static inline int pci_enable_ptm(struct pci_dev *dev, u8 *granularity) ^ include/linux/pci.h:1668:53: warning: unused parameter 'dev' [-Wunused-parameter] static inline bool pcie_ptm_enabled(struct pci_dev *dev) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:34: In file included from include/linux/pci.h:1890: In file included from arch/x86/include/asm/pci.h:109: include/asm-generic/pci.h:11:58: warning: unused parameter 'dev' [-Wunused-parameter] static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:34: include/linux/pci.h:2360:47: warning: unused parameter 'bus' [-Wunused-parameter] pci_host_bridge_of_msi_domain(struct pci_bus *bus) { return NULL; } ^ include/linux/pci.h:2361:59: warning: unused parameter 'dev' [-Wunused-parameter] static inline bool pci_host_of_has_msi_map(struct device *dev) { return false; } ^ In file included from drivers/gpu/drm/i915/i915_drv.c:34: In file included from include/linux/pci.h:2452: In file included from include/linux/pci-dma-compat.h:8: include/linux/dma-mapping.h:83:59: warning: unused parameter 'dev' [-Wunused-parameter] static inline void debug_dma_mapping_error(struct device *dev, ^ include/linux/dma-mapping.h:84:14: warning: unused parameter 'dma_addr' [-Wunused-parameter] dma_addr_t dma_addr) ^ include/linux/dma-mapping.h:87:56: warning: unused parameter 'dev' [-Wunused-parameter] static inline void debug_dma_map_single(struct device *dev, const void *addr, ^ include/linux/dma-mapping.h:87:73: warning: unused parameter 'addr' [-Wunused-parameter] static inline void debug_dma_map_single(struct device *dev, const void *addr, ^ include/linux/dma-mapping.h:88:17: warning: unused parameter 'len' [-Wunused-parameter] unsigned long len) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:39: In file included from include/linux/vga_switcheroo.h:34: In file included from include/linux/fb.h:6: In file included from include/linux/kgdb.h:19: In file included from include/linux/kprobes.h:29: -- In file included from drivers/gpu/drm/i915/i915_drv.h:39: In file included from include/linux/i2c.h:18: In file included from include/linux/regulator/consumer.h:35: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:13: In file included from include/linux/cgroup.h:28: In file included from include/linux/cgroup-defs.h:22: In file included from include/linux/bpf-cgroup.h:5: In file included from include/linux/bpf.h:20: In file included from include/linux/kallsyms.h:13: In file included from include/linux/mm.h:1601: include/linux/vmstat.h:231:2: warning: comparison of integers of different signs: 'int' and 'unsigned int' [-Wsign-compare] for_each_online_cpu(cpu) ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/cpumask.h:789:36: note: expanded from macro 'for_each_online_cpu' #define for_each_online_cpu(cpu) for_each_cpu((cpu), cpu_online_mask) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/cpumask.h:243:9: note: expanded from macro 'for_each_cpu' (cpu) < nr_cpu_ids;) ~~~ ^ ~~~~~~~~~~ In file included from drivers/gpu/drm/i915/i915_config.c:6: In file included from drivers/gpu/drm/i915/i915_drv.h:39: In file included from include/linux/i2c.h:18: In file included from include/linux/regulator/consumer.h:35: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:13: In file included from include/linux/cgroup.h:28: In file included from include/linux/cgroup-defs.h:22: In file included from include/linux/bpf-cgroup.h:5: In file included from include/linux/bpf.h:20: In file included from include/linux/kallsyms.h:13: In file included from include/linux/mm.h:1601: include/linux/vmstat.h:419:15: warning: unused parameter 'migratetype' [-Wunused-parameter] int migratetype) ^ In file included from drivers/gpu/drm/i915/i915_config.c:6: In file included from drivers/gpu/drm/i915/i915_drv.h:39: In file included from include/linux/i2c.h:18: In file included from include/linux/regulator/consumer.h:35: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:13: In file included from include/linux/cgroup.h:28: In file included from include/linux/cgroup-defs.h:22: In file included from include/linux/bpf-cgroup.h:5: In file included from include/linux/bpf.h:20: In file included from include/linux/kallsyms.h:13: include/linux/mm.h:2193:46: warning: unused parameter 'page' [-Wunused-parameter] static inline bool ptlock_alloc(struct page *page) ^ include/linux/mm.h:2198:45: warning: unused parameter 'page' [-Wunused-parameter] static inline void ptlock_free(struct page *page) ^ include/linux/mm.h:2208:57: warning: unused parameter 'mm' [-Wunused-parameter] static inline spinlock_t *pte_lockptr(struct mm_struct *mm, pmd_t *pmd) ^ include/linux/mm.h:2299:57: warning: unused parameter 'mm' [-Wunused-parameter] static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd) ^ include/linux/mm.h:2365:68: warning: unused parameter 'pud' [-Wunused-parameter] static inline spinlock_t *pud_lockptr(struct mm_struct *mm, pud_t *pud) ^ include/linux/mm.h:2973:55: warning: unused parameter 'page' [-Wunused-parameter] static inline void __kernel_poison_pages(struct page *page, int nunmpages) { } ^ include/linux/mm.h:2973:65: warning: unused parameter 'nunmpages' [-Wunused-parameter] static inline void __kernel_poison_pages(struct page *page, int nunmpages) { } ^ include/linux/mm.h:2974:53: warning: unused parameter 'page' [-Wunused-parameter] static inline void kernel_poison_pages(struct page *page, int numpages) { } ^ include/linux/mm.h:2974:63: warning: unused parameter 'numpages' [-Wunused-parameter] static inline void kernel_poison_pages(struct page *page, int numpages) { } ^ include/linux/mm.h:2975:55: warning: unused parameter 'page' [-Wunused-parameter] static inline void kernel_unpoison_pages(struct page *page, int numpages) { } ^ include/linux/mm.h:2975:65: warning: unused parameter 'numpages' [-Wunused-parameter] static inline void kernel_unpoison_pages(struct page *page, int numpages) { } ^ include/linux/mm.h:3034:59: warning: unused parameter 'page' [-Wunused-parameter] static inline void debug_pagealloc_map_pages(struct page *page, int numpages) {} ^ include/linux/mm.h:3034:69: warning: unused parameter 'numpages' [-Wunused-parameter] static inline void debug_pagealloc_map_pages(struct page *page, int numpages) {} ^ include/linux/mm.h:3035:61: warning: unused parameter 'page' [-Wunused-parameter] static inline void debug_pagealloc_unmap_pages(struct page *page, int numpages) {} ^ include/linux/mm.h:3035:71: warning: unused parameter 'numpages' [-Wunused-parameter] static inline void debug_pagealloc_unmap_pages(struct page *page, int numpages) {} ^ include/linux/mm.h:3219:47: warning: unused parameter 'page' [-Wunused-parameter] static inline bool page_is_guard(struct page *page) { return false; } ^ include/linux/mm.h:3292:41: warning: unused parameter 'mm' [-Wunused-parameter] madvise_set_anon_name(struct mm_struct *mm, unsigned long start, ^ >> include/linux/mm.h:3292:59: warning: unused parameter 'start' [-Wunused-parameter] madvise_set_anon_name(struct mm_struct *mm, unsigned long start, ^ >> include/linux/mm.h:3293:23: warning: unused parameter 'len_in' [-Wunused-parameter] unsigned long len_in, const char *name) { ^ include/linux/mm.h:3293:43: warning: unused parameter 'name' [-Wunused-parameter] unsigned long len_in, const char *name) { ^ In file included from drivers/gpu/drm/i915/i915_config.c:6: In file included from drivers/gpu/drm/i915/i915_drv.h:39: In file included from include/linux/i2c.h:18: In file included from include/linux/regulator/consumer.h:35: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:13: In file included from include/linux/cgroup.h:28: In file included from include/linux/cgroup-defs.h:22: In file included from include/linux/bpf-cgroup.h:5: In file included from include/linux/bpf.h:22: include/linux/sched/mm.h:182:55: warning: unused parameter 'ip' [-Wunused-parameter] static inline void __fs_reclaim_acquire(unsigned long ip) { } ^ include/linux/sched/mm.h:183:55: warning: unused parameter 'ip' [-Wunused-parameter] static inline void __fs_reclaim_release(unsigned long ip) { } ^ include/linux/sched/mm.h:184:45: warning: unused parameter 'gfp_mask' [-Wunused-parameter] static inline void fs_reclaim_acquire(gfp_t gfp_mask) { } ^ include/linux/sched/mm.h:185:45: warning: unused parameter 'gfp_mask' [-Wunused-parameter] static inline void fs_reclaim_release(gfp_t gfp_mask) { } ^ In file included from drivers/gpu/drm/i915/i915_config.c:6: In file included from drivers/gpu/drm/i915/i915_drv.h:39: In file included from include/linux/i2c.h:18: In file included from include/linux/regulator/consumer.h:35: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:13: In file included from include/linux/cgroup.h:28: include/linux/cgroup-defs.h:720:72: warning: unused parameter 'tsk' [-Wunused-parameter] static inline void cgroup_threadgroup_change_begin(struct task_struct *tsk) ^ include/linux/cgroup-defs.h:731:70: warning: unused parameter 'tsk' [-Wunused-parameter] static inline void cgroup_threadgroup_change_end(struct task_struct *tsk) ^ In file included from drivers/gpu/drm/i915/i915_config.c:6: In file included from drivers/gpu/drm/i915/i915_drv.h:39: In file included from include/linux/i2c.h:18: In file included from include/linux/regulator/consumer.h:35: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:22: In file included from include/linux/writeback.h:13: In file included from include/linux/blk_types.h:10: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from arch/x86/include/asm/cacheflush.h:8: include/asm-generic/cacheflush.h:21:53: warning: unused parameter 'mm' [-Wunused-parameter] static inline void flush_cache_mm(struct mm_struct *mm) ^ include/asm-generic/cacheflush.h:27:57: warning: unused parameter 'mm' [-Wunused-parameter] static inline void flush_cache_dup_mm(struct mm_struct *mm) ^ include/asm-generic/cacheflush.h:33:61: warning: unused parameter 'vma' [-Wunused-parameter] static inline void flush_cache_range(struct vm_area_struct *vma, ^ include/asm-generic/cacheflush.h:34:24: warning: unused parameter 'start' [-Wunused-parameter] unsigned long start, ^ include/asm-generic/cacheflush.h:35:24: warning: unused parameter 'end' [-Wunused-parameter] unsigned long end) ^ include/asm-generic/cacheflush.h:41:60: warning: unused parameter 'vma' [-Wunused-parameter] static inline void flush_cache_page(struct vm_area_struct *vma, ^ include/asm-generic/cacheflush.h:42:23: warning: unused parameter 'vmaddr' [-Wunused-parameter] unsigned long vmaddr, ^ include/asm-generic/cacheflush.h:43:23: warning: unused parameter 'pfn' [-Wunused-parameter] unsigned long pfn) ^ include/asm-generic/cacheflush.h:49:51: warning: unused parameter 'page' [-Wunused-parameter] static inline void flush_dcache_page(struct page *page) ^ include/asm-generic/cacheflush.h:57:65: warning: unused parameter 'mapping' [-Wunused-parameter] static inline void flush_dcache_mmap_lock(struct address_space *mapping) ^ include/asm-generic/cacheflush.h:63:67: warning: unused parameter 'mapping' [-Wunused-parameter] static inline void flush_dcache_mmap_unlock(struct address_space *mapping) ^ include/asm-generic/cacheflush.h:69:53: warning: unused parameter 'start' [-Wunused-parameter] static inline void flush_icache_range(unsigned long start, unsigned long end) ^ include/asm-generic/cacheflush.h:69:74: warning: unused parameter 'end' [-Wunused-parameter] static inline void flush_icache_range(unsigned long start, unsigned long end) ^ include/asm-generic/cacheflush.h:79:61: warning: unused parameter 'vma' [-Wunused-parameter] static inline void flush_icache_page(struct vm_area_struct *vma, ^ include/asm-generic/cacheflush.h:80:23: warning: unused parameter 'page' [-Wunused-parameter] struct page *page) ^ include/asm-generic/cacheflush.h:86:66: warning: unused parameter 'vma' [-Wunused-parameter] .. vim +/start +3292 include/linux/mm.h 3208 3209 static inline bool page_is_guard(struct page *page) 3210 { 3211 if (!debug_guardpage_enabled()) 3212 return false; 3213 3214 return PageGuard(page); 3215 } 3216 #else 3217 static inline unsigned int debug_guardpage_minorder(void) { return 0; } 3218 static inline bool debug_guardpage_enabled(void) { return false; } > 3219 static inline bool page_is_guard(struct page *page) { return false; } 3220 #endif /* CONFIG_DEBUG_PAGEALLOC */ 3221 3222 #if MAX_NUMNODES > 1 3223 void __init setup_nr_node_ids(void); 3224 #else 3225 static inline void setup_nr_node_ids(void) {} 3226 #endif 3227 3228 extern int memcmp_pages(struct page *page1, struct page *page2); 3229 3230 static inline int pages_identical(struct page *page1, struct page *page2) 3231 { 3232 return !memcmp_pages(page1, page2); 3233 } 3234 3235 #ifdef CONFIG_MAPPING_DIRTY_HELPERS 3236 unsigned long clean_record_shared_mapping_range(struct address_space *mapping, 3237 pgoff_t first_index, pgoff_t nr, 3238 pgoff_t bitmap_pgoff, 3239 unsigned long *bitmap, 3240 pgoff_t *start, 3241 pgoff_t *end); 3242 3243 unsigned long wp_shared_mapping_range(struct address_space *mapping, 3244 pgoff_t first_index, pgoff_t nr); 3245 #endif 3246 3247 extern int sysctl_nr_trim_pages; 3248 3249 #ifdef CONFIG_PRINTK 3250 void mem_dump_obj(void *object); 3251 #else 3252 static inline void mem_dump_obj(void *object) {} 3253 #endif 3254 3255 /** 3256 * seal_check_future_write - Check for F_SEAL_FUTURE_WRITE flag and handle it 3257 * @seals: the seals to check 3258 * @vma: the vma to operate on 3259 * 3260 * Check whether F_SEAL_FUTURE_WRITE is set; if so, do proper check/handling on 3261 * the vma flags. Return 0 if check pass, or <0 for errors. 3262 */ 3263 static inline int seal_check_future_write(int seals, struct vm_area_struct *vma) 3264 { 3265 if (seals & F_SEAL_FUTURE_WRITE) { 3266 /* 3267 * New PROT_WRITE and MAP_SHARED mmaps are not allowed when 3268 * "future write" seal active. 3269 */ 3270 if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_WRITE)) 3271 return -EPERM; 3272 3273 /* 3274 * Since an F_SEAL_FUTURE_WRITE sealed memfd can be mapped as 3275 * MAP_SHARED and read-only, take care to not allow mprotect to 3276 * revert protections on such mappings. Do this only for shared 3277 * mappings. For private mappings, don't need to mask 3278 * VM_MAYWRITE as we still want them to be COW-writable. 3279 */ 3280 if (vma->vm_flags & VM_SHARED) 3281 vma->vm_flags &= ~(VM_MAYWRITE); 3282 } 3283 3284 return 0; 3285 } 3286 3287 #ifdef CONFIG_ANON_VMA_NAME 3288 int madvise_set_anon_name(struct mm_struct *mm, unsigned long start, 3289 unsigned long len_in, const char *name); 3290 #else 3291 static inline int > 3292 madvise_set_anon_name(struct mm_struct *mm, unsigned long start, > 3293 unsigned long len_in, const char *name) { 3294 return 0; 3295 } 3296 #endif 3297 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
