'\" t
.\"     Title: vfs_test_lock
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: The Linux VFS
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "VFS_TEST_LOCK" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "The Linux VFS"
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.SH "NAME"
vfs_test_lock \- test file byte range lock
.SH "SYNOPSIS"
.HP \w'int\ vfs_test_lock('u
.BI "int vfs_test_lock(struct\ file\ *\ " "filp" ", struct\ file_lock\ *\ " "fl" ");"
.SH "ARGUMENTS"
.PP
\fIfilp\fR
.RS 4
The file to test lock for
.RE
.PP
\fIfl\fR
.RS 4
The lock to test; also used to hold result
.RE
.SH "DESCRIPTION"
.PP
Returns \-ERRNO on failure\&. Indicates presence of conflicting lock by setting conf\->fl_type to something other than F_UNLCK\&.
.SH "COPYRIGHT"
.br