mirror of https://github.com/mkerrisk/man-pages
fcntl.2: wfix
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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@ -669,6 +669,7 @@ and
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Mandatory locking is not specified by POSIX.
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Some other systems also support mandatory locking,
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although the details of how to enable it vary across systems.
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.\"
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.SS Lost locks
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When an advisory lock is obtained on a networked filesystem such as
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NFS it is possible that the lock might get lost.
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@ -687,13 +688,14 @@ This error will persist until the lock is removed or the file
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descriptor is closed.
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Since Linux 3.12,
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.\" commit ef1820f9be27b6ad158f433ab38002ab8131db4d
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this happens at least for NFSv4 including all minor versions.
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this happens at least for NFSv4 (including all minor versions).
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.PP
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Some versions of Unix send a signal
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Some versions of UNIX send a signal
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.RB ( SIGLOST )
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in this circumstance.
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Linux does not define this signal, and does not provide any
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asynchronous notification of lost locks.
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.\"
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.SS Managing signals
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.BR F_GETOWN ,
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.BR F_SETOWN ,
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