| Message ID | 20240724045241.GW612460@frogsfrogsfrogs (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
| Series | xfs_scrub_all: fail fast on masked units | expand |
Looks good: Reviewed-by: Christoph Hellwig <hch@lst.de> On Tue, Jul 23, 2024 at 09:52:41PM -0700, Darrick J. Wong wrote: > From: Darrick J. Wong <djwong@kernel.org> > > If xfs_scrub_all tries to start a masked xfs_scrub@ unit, that's a sign > that the system administrator really didn't want us to scrub that > filesystem. Instead of retrying pointlessly, just make a note of the > failure and move on. > > Signed-off-by: Darrick J. Wong <djwong@kernel.org> > --- > scrub/xfs_scrub_all.in | 21 +++++++++++++++++++++ > 1 file changed, 21 insertions(+) > > diff --git a/scrub/xfs_scrub_all.in b/scrub/xfs_scrub_all.in > index 5440e51c0791..5e2e0446a99f 100644 > --- a/scrub/xfs_scrub_all.in > +++ b/scrub/xfs_scrub_all.in > @@ -181,6 +181,10 @@ def fibonacci(max_ret): > y = z > z = x + y > > +def was_unit_masked(ex): > + '''Decide if this dbus exception occurred because we tried to start a masked unit.''' > + return ex.get_dbus_name() == "org.freedesktop.systemd1.UnitMasked" > + > class scrub_service(scrub_control): > '''Control object for xfs_scrub systemd service.''' > def __init__(self, mnt, scrub_media): > @@ -219,6 +223,12 @@ class scrub_service(scrub_control): > if debug: > print(e) > fatal_ex = e > + > + # If the unit is masked, there's no point in > + # retrying any operations on it. > + if was_unit_masked(e): > + break > + > time.sleep(i) > self.bind() > raise fatal_ex > @@ -270,6 +280,13 @@ class scrub_service(scrub_control): > try: > self.__dbusrun(lambda: self.unit.Start('replace')) > return self.wait() > + except dbus.exceptions.DBusException as e: > + # If the unit was masked, the sysadmin doesn't want us > + # running it. Pretend that we finished it. > + if was_unit_masked(e): > + return 32 > + print(e, file = sys.stderr) > + return -1 > except Exception as e: > print(e, file = sys.stderr) > return -1 > @@ -317,6 +334,10 @@ def run_scrub(mnt, cond, running_devs, mntdevs, killfuncs): > # are running as a systemd service. > if 'SERVICE_MODE' in os.environ: > ret = run_service(mnt, scrub_media, killfuncs) > + if ret == 32: > + print("Scrubbing %s disabled by administrator, (err=%d)" % (mnt, ret)) > + sys.stdout.flush() > + return > if ret == 0 or ret == 1: > print("Scrubbing %s done, (err=%d)" % (mnt, ret)) > sys.stdout.flush() ---end quoted text---
diff --git a/scrub/xfs_scrub_all.in b/scrub/xfs_scrub_all.in index 5440e51c0791..5e2e0446a99f 100644 --- a/scrub/xfs_scrub_all.in +++ b/scrub/xfs_scrub_all.in @@ -181,6 +181,10 @@ def fibonacci(max_ret): y = z z = x + y +def was_unit_masked(ex): + '''Decide if this dbus exception occurred because we tried to start a masked unit.''' + return ex.get_dbus_name() == "org.freedesktop.systemd1.UnitMasked" + class scrub_service(scrub_control): '''Control object for xfs_scrub systemd service.''' def __init__(self, mnt, scrub_media): @@ -219,6 +223,12 @@ class scrub_service(scrub_control): if debug: print(e) fatal_ex = e + + # If the unit is masked, there's no point in + # retrying any operations on it. + if was_unit_masked(e): + break + time.sleep(i) self.bind() raise fatal_ex @@ -270,6 +280,13 @@ class scrub_service(scrub_control): try: self.__dbusrun(lambda: self.unit.Start('replace')) return self.wait() + except dbus.exceptions.DBusException as e: + # If the unit was masked, the sysadmin doesn't want us + # running it. Pretend that we finished it. + if was_unit_masked(e): + return 32 + print(e, file = sys.stderr) + return -1 except Exception as e: print(e, file = sys.stderr) return -1 @@ -317,6 +334,10 @@ def run_scrub(mnt, cond, running_devs, mntdevs, killfuncs): # are running as a systemd service. if 'SERVICE_MODE' in os.environ: ret = run_service(mnt, scrub_media, killfuncs) + if ret == 32: + print("Scrubbing %s disabled by administrator, (err=%d)" % (mnt, ret)) + sys.stdout.flush() + return if ret == 0 or ret == 1: print("Scrubbing %s done, (err=%d)" % (mnt, ret)) sys.stdout.flush()