1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
#!/usr/bin/python3
#
# Copyright (C) 2017 Hans van Kranenburg <hans@knorrie.org>
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
import argparse
import btrfs
import errno
import sys
import time
class Bork(Exception):
pass
def parse_args():
parser = argparse.ArgumentParser()
parser.add_argument(
'mountpoint',
help="Btrfs filesystem mountpoint",
)
return parser.parse_args()
def report_cleaner_progress(path):
report_interval = 120
zero_key = btrfs.ctree.Key(0, 0, 0)
prev_amount_orphans_left = -1
with btrfs.FileSystem(path) as fs:
while True:
current_id = None
orphans = fs.orphan_subvol_ids()
amount_orphans_left = len(orphans)
if prev_amount_orphans_left != amount_orphans_left:
print("{} orphans left to clean".format(amount_orphans_left))
prev_amount_orphans_left = amount_orphans_left
for subvol_id in orphans:
subvolumes = list(fs.subvolumes(min_id=subvol_id, max_id=subvol_id))
if len(subvolumes) == 0:
continue
subvol = subvolumes[0]
if subvol.drop_progress != zero_key:
current_id, since = subvol_id, int(time.time())
break
if current_id is not None:
report_after = 0
while True:
subvolumes = list(fs.subvolumes(min_id=current_id, max_id=current_id))
duration = int(time.time()) - since
if len(subvolumes) == 0:
if report_after > 0:
print("dropping root {} finished after at least {} sec".format(
current_id, duration))
break
if duration >= report_after:
subvol = subvolumes[0]
print("dropping root {} for at least {} sec drop_progress {}".format(
current_id, duration, subvol.drop_progress))
report_after += report_interval
time.sleep(1)
else:
time.sleep(1)
def main():
args = parse_args()
path = args.mountpoint
try:
report_cleaner_progress(path)
except OSError as e:
if e.errno == errno.EPERM:
raise Bork("Insufficient permissions to use the btrfs kernel API.\n"
"Hint: Try running the script as root user.".format(e))
elif e.errno == errno.ENOTTY:
raise Bork("Unable to retrieve data. Hint: Not a mounted btrfs file system?")
raise
if __name__ == '__main__':
try:
main()
except KeyboardInterrupt:
print("Exiting...")
sys.exit(130) # 128 + SIGINT
except Bork as e:
print("Error: {0}".format(e), file=sys.stderr)
sys.exit(1)
except Exception as e:
print(e)
sys.exit(1)
|
