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authorMatthew Wilcox (Oracle) <willy@infradead.org>2020-08-06 23:19:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-07 11:33:23 -0700
commit452b557c9500d27903a20c450ca8d2919c3742be (patch)
treec783712654fd7e0766805402d4ae5f07cb48d931 /mm/debug.c
parente1ab96f8cc713c673df4ab806bd90918e5ab6c98 (diff)
downloadlinux-452b557c9500d27903a20c450ca8d2919c3742be.tar.bz2
mm/debug: dump compound page information on a second line
Simplify both the implementation and the output by splitting all the compound page information onto a second line. Reported-by: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: John Hubbard <jhubbard@nvidia.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Cc: William Kucharski <william.kucharski@oracle.com> Link: http://lkml.kernel.org/r/20200709202117.7216-3-willy@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/debug.c')
-rw-r--r--mm/debug.c30
1 files changed, 12 insertions, 18 deletions
diff --git a/mm/debug.c b/mm/debug.c
index 567b80b0b9e4..b0ebf83eec89 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -95,27 +95,21 @@ void __dump_page(struct page *page, const char *reason)
*/
mapcount = PageSlab(head) ? 0 : page_mapcount(page);
- if (compound)
+ pr_warn("page:%px refcount:%d mapcount:%d mapping:%p index:%#lx\n",
+ page, page_ref_count(head), mapcount, mapping,
+ page_to_pgoff(page));
+ if (compound) {
if (hpage_pincount_available(page)) {
- pr_warn("page:%px refcount:%d mapcount:%d mapping:%p "
- "index:%#lx head:%px order:%u "
- "compound_mapcount:%d compound_pincount:%d\n",
- page, page_ref_count(head), mapcount,
- mapping, page_to_pgoff(page), head,
- compound_order(head), compound_mapcount(page),
- compound_pincount(page));
+ pr_warn("head:%px order:%u compound_mapcount:%d compound_pincount:%d\n",
+ head, compound_order(head),
+ compound_mapcount(head),
+ compound_pincount(head));
} else {
- pr_warn("page:%px refcount:%d mapcount:%d mapping:%p "
- "index:%#lx head:%px order:%u "
- "compound_mapcount:%d\n",
- page, page_ref_count(head), mapcount,
- mapping, page_to_pgoff(page), head,
- compound_order(head), compound_mapcount(page));
+ pr_warn("head:%px order:%u compound_mapcount:%d\n",
+ head, compound_order(head),
+ compound_mapcount(head));
}
- else
- pr_warn("page:%px refcount:%d mapcount:%d mapping:%p index:%#lx\n",
- page, page_ref_count(page), mapcount,
- mapping, page_to_pgoff(page));
+ }
if (PageKsm(page))
type = "ksm ";
else if (PageAnon(page))