zfsprops.8: remove nbmand-not-used-on-Linux and pointer to mount(8)
Linux man-pages' mount(8) points at fcntl(2), as does mount(2), and support for it is little-used, deprecated, and configurable since 4.5. As far as I can tell, FreeBSD doesn't support nbmand at all ‒ mandatory locks are mostly dead Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> Closes #12111
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@ -38,7 +38,7 @@
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.\" Copyright 2019 Joyent, Inc.
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.\" Copyright 2019 Joyent, Inc.
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.\" Copyright (c) 2019, Kjeld Schouten-Lebbing
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.\" Copyright (c) 2019, Kjeld Schouten-Lebbing
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.\"
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.\"
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.Dd May 5, 2021
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.Dd May 24, 2021
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.Dt ZFSPROPS 8
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.Dt ZFSPROPS 8
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.Os
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.Os
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.Sh NAME
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.Sh NAME
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@ -1212,15 +1212,10 @@ location.
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.It Sy nbmand Ns = Ns Sy on Ns | Ns Sy off
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.It Sy nbmand Ns = Ns Sy on Ns | Ns Sy off
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Controls whether the file system should be mounted with
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Controls whether the file system should be mounted with
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.Sy nbmand
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.Sy nbmand
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.Pq Non Blocking mandatory locks .
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.Pq Non-blocking mandatory locks .
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This is used for SMB clients.
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This is used for SMB clients.
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Changes to this property only take effect when the file system is umounted and
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Changes to this property only take effect when the file system is umounted and
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remounted.
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remounted. Support for these locks is scarce and not described by POSIX.
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See
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.Xr mount 8
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for more information on
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.Sy nbmand
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mounts. This property is not used on Linux.
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.It Sy overlay Ns = Ns Sy on Ns | Ns Sy off
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.It Sy overlay Ns = Ns Sy on Ns | Ns Sy off
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Allow mounting on a busy directory or a directory which already contains
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Allow mounting on a busy directory or a directory which already contains
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files or directories.
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files or directories.
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