From 5855c3519463e9ac4d10424bb49953047a04c602 Mon Sep 17 00:00:00 2001 From: Baokun Li Date: Wed, 22 Jan 2025 19:41:30 +0800 Subject: [PATCH] ext4: show 'shutdown' hint when ext4 is forced to shutdown Now, if dmesg is cleared, we have no way of knowing if the file system has been shutdown. Moreover, ext4 allows directory reads even after the file system has been shutdown, so when reading a file returns -EIO, we cannot determine whether this is a hardware issue or if the file system has been shutdown. Therefore, when ext4 file system is shutdown, we're adding a 'shutdown' hint to commands like mount so users can easily check the file system's status. Signed-off-by: Baokun Li Reviewed-by: Jan Kara Reviewed-by: Zhang Yi Link: https://patch.msgid.link/20250122114130.229709-8-libaokun@huaweicloud.com Signed-off-by: Theodore Ts'o --- fs/ext4/super.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index de6c06dc8efe..4e495d5e74a0 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3032,6 +3032,9 @@ static int _ext4_show_options(struct seq_file *seq, struct super_block *sb, if (ext4_emergency_ro(sb)) SEQ_OPTS_PUTS("emergency_ro"); + if (ext4_forced_shutdown(sb)) + SEQ_OPTS_PUTS("shutdown"); + ext4_show_quota_options(seq, sb); return 0; } -- 2.47.3