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[RFC,20/20] ext4: Add process name and pid in ext4_msg()

Message ID 755276113af060c4da0dcdad3a9b2ba6ebecc0ca.1588313626.git.riteshh@linux.ibm.com
State Superseded
Headers show
Series ext4: Fix ENOSPC error, improve mballoc dbg, other cleanups | expand

Commit Message

Ritesh Harjani May 1, 2020, 6:30 a.m. UTC
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@linux.ibm.com>
---
 fs/ext4/super.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

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);
 }