From 39a9dcca61a3d1375b9440676cbfc541804cd217 Mon Sep 17 00:00:00 2001 From: Ryusuke Konishi Date: Tue, 2 Aug 2016 14:05:17 -0700 Subject: nilfs2: emit error message when I/O error is detected When nilfs returned -EIO as an error code, it's not always clear if it came from the underlying block device or not. This will mend the issue by having low level I/O routines of nilfs output an error message when they detected an I/O error. Link: http://lkml.kernel.org/r/1464875891-5443-7-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/nilfs2/btree.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'fs/nilfs2/btree.c') diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c index 2c52693a69a4..2e315f9f2e51 100644 --- a/fs/nilfs2/btree.c +++ b/fs/nilfs2/btree.c @@ -517,6 +517,9 @@ static int __nilfs_btree_get_block(const struct nilfs_bmap *btree, __u64 ptr, out_no_wait: if (!buffer_uptodate(bh)) { + nilfs_msg(btree->b_inode->i_sb, KERN_ERR, + "I/O error reading b-tree node block (ino=%lu, blocknr=%llu)", + btree->b_inode->i_ino, (unsigned long long)ptr); brelse(bh); return -EIO; } -- cgit v1.2.3