Inline data needs to be flushed from the kernel's view of a page before
it's mapped by userspace.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 19e0c58f6552 ("iomap: generic inline data handling")
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
fs/iomap/buffered-io.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 41da4f14c00b..fe60c603f4ca 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -222,6 +222,7 @@ iomap_read_inline_data(struct inode *inode, struct page *page,
memcpy(addr, iomap->inline_data, size);
memset(addr + size, 0, PAGE_SIZE - size);
kunmap_atomic(addr);
+ flush_dcache_page(page);
SetPageUptodate(page);
}
--
2.30.2
