Its very helpful if we had logged the device scanner process name
to debug the race condition between the systemd-udevd scan and the
user initiated device forget command.
This patch adds scanned-by process name to the scan message.
Signed-off-by: Anand Jain <anand.j...@oracle.com>
---
v2: add pid as well
fs/btrfs/volumes.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 79e66db2c1a7..3fe0c422f75f 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1005,11 +1005,13 @@ static noinline struct btrfs_device
*device_list_add(const char *path,
*new_device_added = true;
if (disk_super->label[0])
- pr_info("BTRFS: device label %s devid %llu transid %llu
%s\n",
- disk_super->label, devid, found_transid, path);
+pr_info("BTRFS: device label %s devid %llu transid %llu %s scanned-by
%s(%d)\n",
+ disk_super->label, devid, found_transid, path,
+ current->comm, task_pid_nr(current));
else
- pr_info("BTRFS: device fsid %pU devid %llu transid %llu
%s\n",
- disk_super->fsid, devid, found_transid, path);
+pr_info("BTRFS: device fsid %pU devid %llu transid %llu %s scanned-by
%s(%d)\n",
+ disk_super->fsid, devid, found_transid, path,
+ current->comm, task_pid_nr(current));
} else if (!device->name || strcmp(device->name->str, path)) {
/*
--
1.8.3.1
