ext4: clarify error count warning messages

Make it clear that values printed are times, and that it is error
since last fsck. Also add note about fsck version required.

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Cc: stable@vger.kernel.org

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index b9b9aabfb4d2403e67565ef1b49992e3ae565407..342394772b6c4487505e007947820706b69a196a 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2809,10 +2809,11 @@ static void print_daily_error_info(unsigned long arg)
        es = sbi->s_es;
 
        if (es->s_error_count)
-               ext4_msg(sb, KERN_NOTICE, "error count: %u",
+               /* fsck newer than v1.41.13 is needed to clean this condition. */
+               ext4_msg(sb, KERN_NOTICE, "error count since last fsck: %u",
                         le32_to_cpu(es->s_error_count));
        if (es->s_first_error_time) {
-               printk(KERN_NOTICE "EXT4-fs (%s): initial error at %u: %.*s:%d",
+               printk(KERN_NOTICE "EXT4-fs (%s): initial error at time %u: %.*s:%d",
                       sb->s_id, le32_to_cpu(es->s_first_error_time),
                       (int) sizeof(es->s_first_error_func),
                       es->s_first_error_func,
@@ -2826,7 +2827,7 @@ static void print_daily_error_info(unsigned long arg)
                printk("\n");
        }
        if (es->s_last_error_time) {
-               printk(KERN_NOTICE "EXT4-fs (%s): last error at %u: %.*s:%d",
+               printk(KERN_NOTICE "EXT4-fs (%s): last error at time %u: %.*s:%d",
                       sb->s_id, le32_to_cpu(es->s_last_error_time),
                       (int) sizeof(es->s_last_error_func),
                       es->s_last_error_func,