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lvm: run blkdiscard before remove

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issue #5077
This commit is contained in:
Christopher Laprise 2019-06-21 18:40:03 -04:00
parent b6c4f8456f
commit 62e3d57120
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GPG Key ID: 448568C8B281C952
1 changed files with 8 additions and 1 deletions
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9
qubes/storage/lvm.py
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@ -806,9 +806,16 @@ def qubes_lvm_coro(cmd, log=logging.getLogger('qubes.storage.lvm')):
''' Call :program:`lvm` to execute an LVM operation
Coroutine version of :py:func:`qubes_lvm`'''
cmd = _get_lvm_cmdline(cmd)
environ = os.environ.copy()
environ['LC_ALL'] = 'C.utf8'
if cmd[0] == "remove":
pre_cmd = ['blkdiscard', '/dev/'+cmd[1]]
p = yield from asyncio.create_subprocess_exec(*pre_cmd,
stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL,
close_fds=True, env=environ)
_, _ = yield from p.communicate()
cmd = _get_lvm_cmdline(cmd)
p = yield from asyncio.create_subprocess_exec(*cmd,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,