diff mbox series

[v5,32/39] mm: Support retrieving tail pages from the page cache

Message ID 20200529025824.32296-33-willy@infradead.org (mailing list archive)
State New, archived
Headers show
Series Large pages in the page cache | expand

Commit Message

Matthew Wilcox May 29, 2020, 2:58 a.m. UTC 
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>

page->index is not meaningful for tail pages; we have to use
page_to_index() in this assertion.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
 mm/filemap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/mm/filemap.c b/mm/filemap.c
index 0ec7f25a07b2..56eb086acef8 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1655,7 +1655,7 @@  struct page *pagecache_get_page(struct address_space *mapping, pgoff_t index,
 			put_page(page);
 			goto repeat;
 		}
-		VM_BUG_ON_PAGE(page->index != index, page);
+		VM_BUG_ON_PAGE(page_to_index(page) != index, page);
 	}
 
 	if (fgp_flags & FGP_ACCESSED)