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fcntl.2: Warn that F_GETLK info may already be out of date when the call returns 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2014-02-20 08:34:28 +01:00
parent dc45cae328
commit eceaee4705
1 changed files with 4 additions and 1 deletions
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man2/fcntl.2
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@ -58,7 +58,7 @@
.\" 2010-06-17, Michael Kerrisk .\" 2010-06-17, Michael Kerrisk
.\" Document F_SETPIPE_SZ and F_GETPIPE_SZ. .\" Document F_SETPIPE_SZ and F_GETPIPE_SZ.
.\" .\"
.TH FCNTL 2 2014-01-21 "Linux" "Linux Programmer's Manual" .TH FCNTL 2 2014-02-20 "Linux" "Linux Programmer's Manual"
.SH NAME .SH NAME
fcntl \- manipulate file descriptor fcntl \- manipulate file descriptor
.SH SYNOPSIS .SH SYNOPSIS
@ -352,6 +352,9 @@ fields of
and sets and sets
.I l_pid .I l_pid
to be the PID of the process holding that lock. to be the PID of the process holding that lock.
Note that the information returned by
.BR F_GETLK
may already be out of date by the time the caller inspects it.
.P .P
In order to place a read lock, In order to place a read lock,
.I fd .I fd