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Fix another dependency loop

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zfs-load-key-DATASET.service was gaining an
After=systemd-journald.socket due to its stdout/stderr going to the
journal (which is the default).  systemd-journald.socket has an After
(via RequiresMountsFor=/run/systemd/journal) on -.mount.  If the root
filesystem is encrypted, -.mount gets an After
zfs-load-key-DATASET.service.

By setting stdout and stderr to null on the key load services, we avoid
this loop.

Reviewed-by: Antonio Russo <antonio.e.russo@gmail.com>
Reviewed-by: InsanePrawn <insane.prawny@gmail.com>
Signed-off-by: Richard Laager <rlaager@wiktel.com>
Closes #10356
Closes #10388
This commit is contained in:
Richard Laager 2020-05-30 20:39:31 -05:00 committed by Brian Behlendorf
parent ec41cafee1
commit 62663fb7ec
1 changed files with 4 additions and 0 deletions
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4
etc/systemd/system-generators/zfs-mount-generator.in
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@ -221,6 +221,10 @@ ${keymountdep}
[Service] [Service]
Type=oneshot Type=oneshot
RemainAfterExit=yes RemainAfterExit=yes
# This avoids a dependency loop involving systemd-journald.socket if this
# dataset is a parent of the root filesystem.
StandardOutput=null
StandardError=null
ExecStart=${keyloadcmd} ExecStart=${keyloadcmd}
ExecStop=${keyunloadcmd}" > "${dest_norm}/${keyloadunit}" ExecStop=${keyunloadcmd}" > "${dest_norm}/${keyloadunit}"
fi fi