[PATCH 1/3] mm: print out information of file affected by memory error
From: Naoya Horiguchi <hidden>
Date: 2012-10-25 15:14:05
Also in:
linux-ext4, lkml
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 <redacted> --- 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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