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| author | Ingo Molnar <mingo@kernel.org> | 2020-02-24 13:36:09 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-02-24 13:36:09 +0300 |
| commit | 546121b65f47384e11ec1fa2e55449fc9f4846b2 (patch) | |
| tree | 8f18470ec7c0c77b0f48eb1b2338e591b0b0aaff /mm/debug.c | |
| parent | 000619680c3714020ce9db17eef6a4a7ce2dc28b (diff) | |
| parent | f8788d86ab28f61f7b46eb6be375f8a726783636 (diff) | |
| download | linux-546121b65f47384e11ec1fa2e55449fc9f4846b2.tar.xz | |
Merge tag 'v5.6-rc3' into sched/core, to pick up fixes and dependent patches
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/debug.c')
| -rw-r--r-- | mm/debug.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/mm/debug.c b/mm/debug.c index 0461df1207cb..ecccd9f17801 100644 --- a/mm/debug.c +++ b/mm/debug.c @@ -46,7 +46,15 @@ void __dump_page(struct page *page, const char *reason) { struct address_space *mapping; bool page_poisoned = PagePoisoned(page); + /* + * Accessing the pageblock without the zone lock. It could change to + * "isolate" again in the meantime, but since we are just dumping the + * state for debugging, it should be fine to accept a bit of + * inaccuracy here due to racing. + */ + bool page_cma = is_migrate_cma_page(page); int mapcount; + char *type = ""; /* * If struct page is poisoned don't access Page*() functions as that @@ -78,9 +86,9 @@ void __dump_page(struct page *page, const char *reason) page, page_ref_count(page), mapcount, page->mapping, page_to_pgoff(page)); if (PageKsm(page)) - pr_warn("ksm flags: %#lx(%pGp)\n", page->flags, &page->flags); + type = "ksm "; else if (PageAnon(page)) - pr_warn("anon flags: %#lx(%pGp)\n", page->flags, &page->flags); + type = "anon "; else if (mapping) { if (mapping->host && mapping->host->i_dentry.first) { struct dentry *dentry; @@ -88,10 +96,12 @@ void __dump_page(struct page *page, const char *reason) pr_warn("%ps name:\"%pd\"\n", mapping->a_ops, dentry); } else pr_warn("%ps\n", mapping->a_ops); - pr_warn("flags: %#lx(%pGp)\n", page->flags, &page->flags); } BUILD_BUG_ON(ARRAY_SIZE(pageflag_names) != __NR_PAGEFLAGS + 1); + pr_warn("%sflags: %#lx(%pGp)%s\n", type, page->flags, &page->flags, + page_cma ? " CMA" : ""); + hex_only: print_hex_dump(KERN_WARNING, "raw: ", DUMP_PREFIX_NONE, 32, sizeof(unsigned long), page, @@ -153,7 +163,7 @@ void dump_mm(const struct mm_struct *mm) #endif "exe_file %px\n" #ifdef CONFIG_MMU_NOTIFIER - "mmu_notifier_mm %px\n" + "notifier_subscriptions %px\n" #endif #ifdef CONFIG_NUMA_BALANCING "numa_next_scan %lu numa_scan_offset %lu numa_scan_seq %d\n" @@ -185,7 +195,7 @@ void dump_mm(const struct mm_struct *mm) #endif mm->exe_file, #ifdef CONFIG_MMU_NOTIFIER - mm->mmu_notifier_mm, + mm->notifier_subscriptions, #endif #ifdef CONFIG_NUMA_BALANCING mm->numa_next_scan, mm->numa_scan_offset, mm->numa_scan_seq, |