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authorMatthew Wilcox (Oracle) <willy@infradead.org>2020-08-06 23:19:39 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-07 11:33:23 -0700
commit0b93d59e90d4403dd7c6bccaf27bd5bc91396866 (patch)
tree1d9e233fa8b28ac7b8442662bf54c34789feb018
parent452b557c9500d27903a20c450ca8d2919c3742be (diff)
mm/debug: print head flags in dump_page
Tail page flags contain very little useful information. Print the head page's flags instead. While the flags will contain "head" for tail pages, this should not be too confusing as the previous line starts with the word "head:" and so the flags should be interpreted as belonging to the head page. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> 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/20200709202117.7216-4-willy@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/debug.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/debug.c b/mm/debug.c
index b0ebf83eec89..27837c18027c 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -168,7 +168,7 @@ void __dump_page(struct page *page, const char *reason)
out_mapping:
BUILD_BUG_ON(ARRAY_SIZE(pageflag_names) != __NR_PAGEFLAGS + 1);
- pr_warn("%sflags: %#lx(%pGp)%s\n", type, page->flags, &page->flags,
+ pr_warn("%sflags: %#lx(%pGp)%s\n", type, head->flags, &head->flags,
page_cma ? " CMA" : "");
hex_only: