Messages in this thread Patch in this message | | | From | Matthew Wilcox <> | Subject | [PATCH v4 17/36] iomap: Inline data shouldn't see large pages | Date | Fri, 15 May 2020 06:16:37 -0700 |
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From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Assert that we're not seeing large pages in functions that read/write inline data, rather than zeroing out the tail.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Christoph Hellwig <hch@lst.de> --- fs/iomap/buffered-io.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index b7504b8aa90c..782757258a28 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -221,6 +221,7 @@ iomap_read_inline_data(struct inode *inode, struct page *page, return; BUG_ON(page->index); + BUG_ON(PageCompound(page)); BUG_ON(size > PAGE_SIZE - offset_in_page(iomap->inline_data)); addr = kmap_atomic(page); @@ -732,6 +733,7 @@ iomap_write_end_inline(struct inode *inode, struct page *page, void *addr; WARN_ON_ONCE(!PageUptodate(page)); + BUG_ON(PageCompound(page)); BUG_ON(pos + copied > PAGE_SIZE - offset_in_page(iomap->inline_data)); addr = kmap_atomic(page); -- 2.26.2
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