If file data is corrupted, the user may want to know which file is corrupted. CC: Andi Kleen Signed-off-by: Wu Fengguang --- mm/memory-failure.c | 43 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) --- linux-mm.orig/mm/memory-failure.c 2009-12-01 09:56:21.000000000 +0800 +++ linux-mm/mm/memory-failure.c 2009-12-01 09:56:23.000000000 +0800 @@ -56,6 +56,47 @@ u64 hwpoison_filter_flags_mask; u64 hwpoison_filter_flags_value; u32 hwpoison_filter_memcg; +static void describe_page_file(struct page *page) +{ + char *name = "?"; + struct inode *inode; + struct dentry *dentry; + + if (PageAnon(page)) + return; + + if (!page->mapping) + return; + + inode = igrab(page->mapping->host); + if (!inode) + return; + + dentry = d_find_alias(inode); + + if (dentry) { + spin_lock(&dentry->d_lock); + name = dentry->d_name.name; + } + + printk(KERN_ERR + "MCE %#lx: dev %d:%d inode %lu(%s) pgoff %lu%s\n", + page_to_pfn(page), + MAJOR(inode->i_sb->s_dev), + MINOR(inode->i_sb->s_dev), + inode->i_ino, + name, + page->index, + PageDirty(page) ? " corrupted" : ""); + + if (dentry) { + spin_unlock(&dentry->d_lock); + dput(dentry); + } + + iput(inode); +} + static int hwpoison_filter_dev(struct page *p) { struct address_space *mapping; @@ -525,6 +566,8 @@ static int me_pagecache_clean(struct hwp } else { ret = RECOVERED; } + if (PageDirty(p) && !PageSwapBacked(p)) + describe_page_file(p); } else { /* * If the file system doesn't support it just invalidate -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/