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| author |   Anand Jain <anand.jain@oracle.com> | 2019-10-02 18:30:48 +0800 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2019-11-18 12:46:51 +0100 |
| commit | aa6c0df73e3b3fc771d8d8469eb81537f4b46a45 (patch) | |
| tree | e3e6e159d22e984b14bf2cc1264743aec65d6ca1 /fs/btrfs/volumes.c | |
| parent | btrfs: Open-code name_in_log_ref in replay_one_name (diff) | |
| download | linux-dev-aa6c0df73e3b3fc771d8d8469eb81537f4b46a45.tar.xz linux-dev-aa6c0df73e3b3fc771d8d8469eb81537f4b46a45.zip | |
btrfs: print process name and pid that calls device scanning
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 process name and pid to the scan message.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ add pid to the message ]
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to '')
| -rw-r--r-- | fs/btrfs/volumes.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index f7b45e4b7de4..139b73dcfbcc 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1005,11 +1005,15 @@ 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)) { /* |