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btrfs: include device major and minor numbers in the device scan notice

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To better debug issues surrounding device scans, include the device's
major and minor numbers in the device scan notice for btrfs.

Reviewed-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Anand Jain 2024-02-25 12:28:31 +05:30 committed by David Sterba
parent 7ec28f83a1
commit 0782303aaa
1 changed files with 12 additions and 7 deletions
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19
fs/btrfs/volumes.c
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@ -767,8 +767,9 @@ static noinline struct btrfs_device *device_list_add(const char *path,
if (same_fsid_diff_dev) {
generate_random_uuid(fs_devices->fsid);
fs_devices->temp_fsid = true;
pr_info("BTRFS: device %s using temp-fsid %pU\n",
path, fs_devices->fsid);
pr_info("BTRFS: device %s (%d:%d) using temp-fsid %pU\n",
path, MAJOR(path_devt), MINOR(path_devt),
fs_devices->fsid);
}
mutex_lock(&fs_devices->device_list_mutex);
@ -797,8 +798,9 @@ static noinline struct btrfs_device *device_list_add(const char *path,
if (fs_devices->opened) {
btrfs_err(NULL,
"device %s belongs to fsid %pU, and the fs is already mounted, scanned by %s (%d)",
path, fs_devices->fsid, current->comm,
"device %s (%d:%d) belongs to fsid %pU, and the fs is already mounted, scanned by %s (%d)",
path, MAJOR(path_devt), MINOR(path_devt),
fs_devices->fsid, current->comm,
task_pid_nr(current));
mutex_unlock(&fs_devices->device_list_mutex);
return ERR_PTR(-EBUSY);
@ -824,13 +826,15 @@ static noinline struct btrfs_device *device_list_add(const char *path,
if (disk_super->label[0])
pr_info(
"BTRFS: device label %s devid %llu transid %llu %s scanned by %s (%d)\n",
"BTRFS: device label %s devid %llu transid %llu %s (%d:%d) scanned by %s (%d)\n",
disk_super->label, devid, found_transid, path,
MAJOR(path_devt), MINOR(path_devt),
current->comm, task_pid_nr(current));
else
pr_info(
"BTRFS: device fsid %pU devid %llu transid %llu %s scanned by %s (%d)\n",
"BTRFS: device fsid %pU devid %llu transid %llu %s (%d:%d) scanned by %s (%d)\n",
disk_super->fsid, devid, found_transid, path,
MAJOR(path_devt), MINOR(path_devt),
current->comm, task_pid_nr(current));
} else if (!device->name || strcmp(device->name->str, path)) {
@ -1366,7 +1370,8 @@ struct btrfs_device *btrfs_scan_one_device(const char *path, blk_mode_t flags,
else
btrfs_free_stale_devices(devt, NULL);
pr_debug("BTRFS: skip registering single non-seed device %s\n", path);
pr_debug("BTRFS: skip registering single non-seed device %s (%d:%d)\n",
path, MAJOR(devt), MINOR(devt));
device = NULL;
goto free_disk_super;
}