Re: [PATCH v2 07/22] mm: Provide a means of invalidation without using launder_folio

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David Howells <dhowells@xxxxxxxxxx> wrote:

> +			.range_start	= first,
> +			.range_end	= last,
> ...
> +	truncate_inode_pages_range(mapping, first, last);

These actually take file offsets and not page ranges and so the attached
change is needed.  Without this, the generic/412 xfstest fails.

David
---
diff --git a/mm/filemap.c b/mm/filemap.c
index 53516305b4b4..3916fc8b10e6 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -4171,15 +4171,15 @@ int filemap_invalidate_inode(struct inode *inode, bool flush,
 		struct writeback_control wbc = {
 			.sync_mode	= WB_SYNC_ALL,
 			.nr_to_write	= LONG_MAX,
-			.range_start	= first,
-			.range_end	= last,
+			.range_start	= start,
+			.range_end	= end,
 		};
 
 		filemap_fdatawrite_wbc(mapping, &wbc);
 	}
 
 	/* Wait for writeback to complete on all folios and discard. */
-	truncate_inode_pages_range(mapping, first, last);
+	truncate_inode_pages_range(mapping, start, end);
 
 unlock:
 	filemap_invalidate_unlock(mapping);

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