diff options
Diffstat (limited to 'mm/debug.c')
| -rw-r--r-- | mm/debug.c | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/mm/debug.c b/mm/debug.c index 69e524c3e601..aa57d3ffd4ed 100644 --- a/mm/debug.c +++ b/mm/debug.c @@ -36,11 +36,6 @@ const struct trace_print_flags pageflag_names[] = { {0, NULL} }; -const struct trace_print_flags pagetype_names[] = { - __def_pagetype_names, - {0, NULL} -}; - const struct trace_print_flags gfpflag_names[] = { __def_gfpflag_names, {0, NULL} @@ -51,6 +46,27 @@ const struct trace_print_flags vmaflag_names[] = { {0, NULL} }; +#define DEF_PAGETYPE_NAME(_name) [PGTY_##_name - 0xf0] = __stringify(_name) + +static const char *page_type_names[] = { + DEF_PAGETYPE_NAME(slab), + DEF_PAGETYPE_NAME(hugetlb), + DEF_PAGETYPE_NAME(offline), + DEF_PAGETYPE_NAME(guard), + DEF_PAGETYPE_NAME(table), + DEF_PAGETYPE_NAME(buddy), + DEF_PAGETYPE_NAME(unaccepted), +}; + +static const char *page_type_name(unsigned int page_type) +{ + unsigned i = (page_type >> 24) - 0xf0; + + if (i >= ARRAY_SIZE(page_type_names)) + return "unknown"; + return page_type_names[i]; +} + static void __dump_folio(struct folio *folio, struct page *page, unsigned long pfn, unsigned long idx) { @@ -58,7 +74,7 @@ static void __dump_folio(struct folio *folio, struct page *page, int mapcount = atomic_read(&page->_mapcount); char *type = ""; - mapcount = page_type_has_type(mapcount) ? 0 : mapcount + 1; + mapcount = page_mapcount_is_type(mapcount) ? 0 : mapcount + 1; pr_warn("page: refcount:%d mapcount:%d mapping:%p index:%#lx pfn:%#lx\n", folio_ref_count(folio), mapcount, mapping, folio->index + idx, pfn); @@ -92,7 +108,8 @@ static void __dump_folio(struct folio *folio, struct page *page, pr_warn("%sflags: %pGp%s\n", type, &folio->flags, is_migrate_cma_folio(folio, pfn) ? " CMA" : ""); if (page_has_type(&folio->page)) - pr_warn("page_type: %pGt\n", &folio->page.page_type); + pr_warn("page_type: %x(%s)\n", folio->page.page_type >> 24, + page_type_name(folio->page.page_type)); print_hex_dump(KERN_WARNING, "raw: ", DUMP_PREFIX_NONE, 32, sizeof(unsigned long), page, |