This adds process name and pid for ext4_msg(). I found this to be useful. For e.g. below print gives more info about process name and pid. [ 7671.131912] [mount/12543] EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts: acl,user_xattr Signed-off-by: Ritesh Harjani <riteshh@xxxxxxxxxxxxx> --- fs/ext4/super.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index bf5fcb477f66..5067a47f4f46 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -756,7 +756,8 @@ void __ext4_msg(struct super_block *sb, va_start(args, fmt); vaf.fmt = fmt; vaf.va = &args; - printk("%sEXT4-fs (%s): %pV\n", prefix, sb->s_id, &vaf); + printk("%s [%s/%d] EXT4-fs (%s): %pV\n", prefix, current->comm, + task_pid_nr(current), sb->s_id, &vaf); va_end(args); } -- 2.21.0