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-rw-r--r--mm/truncate.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/mm/truncate.c b/mm/truncate.c
index ea132f7ea2d2..a17b3977cfdf 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -147,6 +147,23 @@ int truncate_inode_page(struct address_space *mapping, struct page *page)
}
/*
+ * Used to get rid of pages on hardware memory corruption.
+ */
+int generic_error_remove_page(struct address_space *mapping, struct page *page)
+{
+ if (!mapping)
+ return -EINVAL;
+ /*
+ * Only punch for normal data pages for now.
+ * Handling other types like directories would need more auditing.
+ */
+ if (!S_ISREG(mapping->host->i_mode))
+ return -EIO;
+ return truncate_inode_page(mapping, page);
+}
+EXPORT_SYMBOL(generic_error_remove_page);
+
+/*
* Safely invalidate one page from its pagecache mapping.
* It only drops clean, unused pages. The page must be locked.
*