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Date: Mon, 24 Jun 2019 17:12:42 -0700 From: Song Liu <songliubraving@...com> To: <linux-mm@...ck.org>, <linux-fsdevel@...r.kernel.org>, <linux-kernel@...r.kernel.org> CC: <matthew.wilcox@...cle.com>, <kirill.shutemov@...ux.intel.com>, <kernel-team@...com>, <william.kucharski@...cle.com>, <akpm@...ux-foundation.org>, <hdanton@...a.com>, Song Liu <songliubraving@...com> Subject: [PATCH v9 2/6] filemap: update offset check in filemap_fault() With THP, current check of offset: VM_BUG_ON_PAGE(page->index != offset, page); is no longer accurate. Update it to: VM_BUG_ON_PAGE(page_to_pgoff(page) != offset, page); Acked-by: Rik van Riel <riel@...riel.com> Signed-off-by: Song Liu <songliubraving@...com> --- mm/filemap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/filemap.c b/mm/filemap.c index f5b79a43946d..5f072a113535 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2522,7 +2522,7 @@ vm_fault_t filemap_fault(struct vm_fault *vmf) put_page(page); goto retry_find; } - VM_BUG_ON_PAGE(page->index != offset, page); + VM_BUG_ON_PAGE(page_to_pgoff(page) != offset, page); /* * We have a locked page in the page cache, now we need to check -- 2.17.1
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