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Add notice that forcefully unmount is not supported on Linux 

The Linux VFS will never allow a filesystem which is in use to
be unmounted.  This behavior differs from other platforms like
FreeBSD which allow a filesystem to be force unmounted.  This 
will result in errors being returned to applications actively
using the filesystem.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Mariusz Zaborski <oshogbo@vexillium.org>
Closes #10013
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Mariusz Zaborski 2020-02-18 22:36:23 +01:00 committed by GitHub
parent 43849fdf3f
commit 89adffb7bc
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2 changed files with 4 additions and 2 deletions
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3
man/man8/zfs-mount.8
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@ -30,7 +30,7 @@
.\" Copyright 2018 Nexenta Systems, Inc. .\" Copyright 2018 Nexenta Systems, Inc.
.\" Copyright 2019 Joyent, Inc. .\" Copyright 2019 Joyent, Inc.
.\" .\"
.Dd June 30, 2019 .Dd February 16, 2019
.Dt ZFS-MOUNT 8 .Dt ZFS-MOUNT 8
.Os Linux .Os Linux
.Sh NAME .Sh NAME
@ -117,6 +117,7 @@ Unmount all available ZFS file systems.
Invoked automatically as part of the shutdown process. Invoked automatically as part of the shutdown process.
.It Fl f .It Fl f
Forcefully unmount the file system, even if it is currently in use. Forcefully unmount the file system, even if it is currently in use.
This option is not supported on Linux.
.It Fl u .It Fl u
Unload keys for any encryption roots unmounted by this command. Unload keys for any encryption roots unmounted by this command.
.It Ar filesystem Ns | Ns Ar mountpoint .It Ar filesystem Ns | Ns Ar mountpoint

3
man/man8/zpool-export.8
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@ -27,7 +27,7 @@
.\" Copyright 2017 Nexenta Systems, Inc. .\" Copyright 2017 Nexenta Systems, Inc.
.\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved. .\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
.\" .\"
.Dd August 9, 2019 .Dd February 16, 2020
.Dt ZPOOL-EXPORT 8 .Dt ZPOOL-EXPORT 8
.Os Linux .Os Linux
.Sh NAME .Sh NAME
@ -72,6 +72,7 @@ Exports all pools imported on the system.
Forcefully unmount all datasets, using the Forcefully unmount all datasets, using the
.Nm unmount Fl f .Nm unmount Fl f
command. command.
This option is not supported on Linux.
.Pp .Pp
This command will forcefully export the pool even if it has a shared spare that This command will forcefully export the pool even if it has a shared spare that
is currently being used. is currently being used.