Printing out the information about which file can be affected by a
memory error in generic_error_remove_page() is helpful for user to
estimate the impact of the error.

Signed-off-by: Naoya Horiguchi <[email protected]>
---
 mm/truncate.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git v3.7-rc2.orig/mm/truncate.c v3.7-rc2/mm/truncate.c
index d51ce92..df0c6ab7 100644
--- v3.7-rc2.orig/mm/truncate.c
+++ v3.7-rc2/mm/truncate.c
@@ -151,14 +151,20 @@ int truncate_inode_page(struct address_space *mapping, 
struct page *page)
  */
 int generic_error_remove_page(struct address_space *mapping, struct page *page)
 {
+       int ret;
+       struct inode *inode = mapping->host;
+
        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))
+       if (!S_ISREG(inode->i_mode))
                return -EIO;
+       pr_info("MCE %#lx: file info pgoff:%lu, inode:%lu, dev:%s\n",
+               page_to_pfn(page), page_index(page),
+               inode->i_ino, inode->i_sb->s_id);
        return truncate_inode_page(mapping, page);
 }
 EXPORT_SYMBOL(generic_error_remove_page);
-- 
1.7.11.7

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