Viewing: llapi_fd2fid.3
.TH LLAPI_FD2FID 3 2025-09-02 "Lustre User API" "Lustre Library Functions"
.SH NAME
llapi_fd2fid \- return Lustre File Identifier for open file descriptor
.SH SYNOPSIS
.nf
.B #include <lustre/lustreapi.h>
.PP
.BI "int llapi_fd2fid(int " fd ", struct lu_fid *" fid ");"
.fi
.SH DESCRIPTION
.BR llapi_fd2fid()
retrieves the File Identifier corresponding to the given open file descriptor
.I fd
and stores it in
.IR fid .
.SH RETURN VALUES
Returns 0 on success or a negative errno value on failure.
.SH ERRORS
.TP 15
.B -ENOTTY
Path does not reside on a Lustre filesystem.
.SH AVAILABILITY
.B llapi_fd2fid()
is part of the
.BR lustre (7)
user application interface library since release 2.13.50
.\" Added in commit v2_13_50-48-g21d671b3af
.SH SEE ALSO
.BR llapi_path2fid (3),
.BR llapi_layout (7),
.BR lustreapi (7)
