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a8c5bcb5de
When a system boots the zfs-mount.service and the zfs-share.service can start simultaneously. What may be unclear is that sharing a filesystem will first mount the filesystem if it's not already mounted. This means that both service can race to mount the same fileystem. This race can result in a SEGFAULT or EBUSY conditions. This change explicitly defines the start ordering between the two services such that the zfs-mount.service is solely responsible for mounting filesystems eliminating the race between "zfs mount -a" and "zfs share -a" commands. Reviewed-by: Sebastien Roy <sebastien.roy@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: George Wilson <george.wilson@delphix.com> Closes #9083
20 lines
438 B
SYSTEMD
20 lines
438 B
SYSTEMD
[Unit]
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Description=ZFS file system shares
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Documentation=man:zfs(8)
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After=nfs-server.service nfs-kernel-server.service
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After=smb.service
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Before=rpc-statd-notify.service
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Wants=zfs-mount.service
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After=zfs-mount.service
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PartOf=nfs-server.service nfs-kernel-server.service
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PartOf=smb.service
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[Service]
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Type=oneshot
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RemainAfterExit=yes
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ExecStartPre=-/bin/rm -f /etc/dfs/sharetab
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ExecStart=@sbindir@/zfs share -a
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[Install]
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WantedBy=zfs.target
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