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authorBaokun Li <libaokun1@huawei.com>2025-01-22 19:41:30 +0800
committerTheodore Ts'o <tytso@mit.edu>2025-03-13 10:16:35 -0400
commit5855c3519463e9ac4d10424bb49953047a04c602 (patch)
tree862a5c2d88f369415246b1f79dee082a1c90fc56
parent6b76715d5e41fc332b0b879e66fad6ef3db07a3f (diff)
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 <libaokun1@huawei.com> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Zhang Yi <yi.zhang@huawei.com> Link: https://patch.msgid.link/20250122114130.229709-8-libaokun@huaweicloud.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
-rw-r--r--fs/ext4/super.c3
1 files changed, 3 insertions, 0 deletions
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;
}