cregit-Linux how code gets into the kernel

Release 4.10 mm/debug.c

Directory: mm
/*
 * mm/debug.c
 *
 * mm/ specific debug routines.
 *
 */

#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/trace_events.h>
#include <linux/memcontrol.h>
#include <trace/events/mmflags.h>
#include <linux/migrate.h>
#include <linux/page_owner.h>

#include "internal.h"


char *migrate_reason_names[MR_TYPES] = {
	"compaction",
	"memory_failure",
	"memory_hotplug",
	"syscall_or_cpuset",
	"mempolicy_mbind",
	"numa_misplaced",
	"cma",
};


const struct trace_print_flags pageflag_names[] = {
	__def_pageflag_names,
	{0, NULL}
};


const struct trace_print_flags gfpflag_names[] = {
	__def_gfpflag_names,
	{0, NULL}
};


const struct trace_print_flags vmaflag_names[] = {
	__def_vmaflag_names,
	{0, NULL}
};


void __dump_page(struct page *page, const char *reason) { /* * Avoid VM_BUG_ON() in page_mapcount(). * page->_mapcount space in struct page is used by sl[aou]b pages to * encode own info. */ int mapcount = PageSlab(page) ? 0 : page_mapcount(page); pr_emerg("page:%p count:%d mapcount:%d mapping:%p index:%#lx", page, page_ref_count(page), mapcount, page->mapping, page_to_pgoff(page)); if (PageCompound(page)) pr_cont(" compound_mapcount: %d", compound_mapcount(page)); pr_cont("\n"); BUILD_BUG_ON(ARRAY_SIZE(pageflag_names) != __NR_PAGEFLAGS + 1); pr_emerg("flags: %#lx(%pGp)\n", page->flags, &page->flags); print_hex_dump(KERN_ALERT, "raw: ", DUMP_PREFIX_NONE, 32, sizeof(unsigned long), page, sizeof(struct page), false); if (reason) pr_alert("page dumped because: %s\n", reason); #ifdef CONFIG_MEMCG if (page->mem_cgroup) pr_alert("page->mem_cgroup:%p\n", page->mem_cgroup); #endif }

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sasha levinsasha levin6238.75%19.09%
kirill a. shutemovkirill a. shutemov4326.88%327.27%
vlastimil babkavlastimil babka3723.12%436.36%
johannes weinerjohannes weiner1610.00%19.09%
andrew mortonandrew morton10.62%19.09%
joonsoo kimjoonsoo kim10.62%19.09%
Total160100.00%11100.00%


void dump_page(struct page *page, const char *reason) { __dump_page(page, reason); dump_page_owner(page); }

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sasha levinsasha levin2177.78%133.33%
vlastimil babkavlastimil babka622.22%266.67%
Total27100.00%3100.00%

EXPORT_SYMBOL(dump_page); #ifdef CONFIG_DEBUG_VM
void dump_vma(const struct vm_area_struct *vma) { pr_emerg("vma %p start %p end %p\n" "next %p prev %p mm %p\n" "prot %lx anon_vma %p vm_ops %p\n" "pgoff %lx file %p private_data %p\n" "flags: %#lx(%pGv)\n", vma, (void *)vma->vm_start, (void *)vma->vm_end, vma->vm_next, vma->vm_prev, vma->vm_mm, (unsigned long)pgprot_val(vma->vm_page_prot), vma->anon_vma, vma->vm_ops, vma->vm_pgoff, vma->vm_file, vma->vm_private_data, vma->vm_flags, &vma->vm_flags); }

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PersonTokensPropCommitsCommitProp
sasha levinsasha levin8392.22%133.33%
vlastimil babkavlastimil babka66.67%133.33%
andrew mortonandrew morton11.11%133.33%
Total90100.00%3100.00%

EXPORT_SYMBOL(dump_vma);
void dump_mm(const struct mm_struct *mm) { pr_emerg("mm %p mmap %p seqnum %d task_size %lu\n" #ifdef CONFIG_MMU "get_unmapped_area %p\n" #endif "mmap_base %lu mmap_legacy_base %lu highest_vm_end %lu\n" "pgd %p mm_users %d mm_count %d nr_ptes %lu nr_pmds %lu map_count %d\n" "hiwater_rss %lx hiwater_vm %lx total_vm %lx locked_vm %lx\n" "pinned_vm %lx data_vm %lx exec_vm %lx stack_vm %lx\n" "start_code %lx end_code %lx start_data %lx end_data %lx\n" "start_brk %lx brk %lx start_stack %lx\n" "arg_start %lx arg_end %lx env_start %lx env_end %lx\n" "binfmt %p flags %lx core_state %p\n" #ifdef CONFIG_AIO "ioctx_table %p\n" #endif #ifdef CONFIG_MEMCG "owner %p " #endif "exe_file %p\n" #ifdef CONFIG_MMU_NOTIFIER "mmu_notifier_mm %p\n" #endif #ifdef CONFIG_NUMA_BALANCING "numa_next_scan %lu numa_scan_offset %lu numa_scan_seq %d\n" #endif #if defined(CONFIG_NUMA_BALANCING) || defined(CONFIG_COMPACTION) "tlb_flush_pending %d\n" #endif "def_flags: %#lx(%pGv)\n", mm, mm->mmap, mm->vmacache_seqnum, mm->task_size, #ifdef CONFIG_MMU mm->get_unmapped_area, #endif mm->mmap_base, mm->mmap_legacy_base, mm->highest_vm_end, mm->pgd, atomic_read(&mm->mm_users), atomic_read(&mm->mm_count), atomic_long_read((atomic_long_t *)&mm->nr_ptes), mm_nr_pmds((struct mm_struct *)mm), mm->map_count, mm->hiwater_rss, mm->hiwater_vm, mm->total_vm, mm->locked_vm, mm->pinned_vm, mm->data_vm, mm->exec_vm, mm->stack_vm, mm->start_code, mm->end_code, mm->start_data, mm->end_data, mm->start_brk, mm->brk, mm->start_stack, mm->arg_start, mm->arg_end, mm->env_start, mm->env_end, mm->binfmt, mm->flags, mm->core_state, #ifdef CONFIG_AIO mm->ioctx_table, #endif #ifdef CONFIG_MEMCG mm->owner, #endif mm->exe_file, #ifdef CONFIG_MMU_NOTIFIER mm->mmu_notifier_mm, #endif #ifdef CONFIG_NUMA_BALANCING mm->numa_next_scan, mm->numa_scan_offset, mm->numa_scan_seq, #endif #if defined(CONFIG_NUMA_BALANCING) || defined(CONFIG_COMPACTION) mm->tlb_flush_pending, #endif mm->def_flags, &mm->def_flags ); }

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sasha levinsasha levin29493.93%120.00%
kirill a. shutemovkirill a. shutemov113.51%120.00%
vlastimil babkavlastimil babka51.60%120.00%
konstantin khlebnikovkonstantin khlebnikov20.64%120.00%
andrew mortonandrew morton10.32%120.00%
Total313100.00%5100.00%

#endif /* CONFIG_DEBUG_VM */

Overall Contributors

PersonTokensPropCommitsCommitProp
sasha levinsasha levin49870.94%210.53%
vlastimil babkavlastimil babka12617.95%736.84%
kirill a. shutemovkirill a. shutemov547.69%421.05%
johannes weinerjohannes weiner162.28%15.26%
andrew mortonandrew morton30.43%15.26%
konstantin khlebnikovkonstantin khlebnikov20.28%15.26%
joonsoo kimjoonsoo kim10.14%15.26%
vladimir davydovvladimir davydov10.14%15.26%
steven rostedtsteven rostedt10.14%15.26%
Total702100.00%19100.00%
Directory: mm
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