[newlib-cygwin] Add FIOBMAP2 ioctl

[newlib-cygwin] Add FIOBMAP2 ioctl

[Sebastian Huber]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=8fe49db783fd0841296afaf0226f712bc5967f4b

commit 8fe49db783fd0841296afaf0226f712bc5967f4b
Author: Alan Somers <asomers@FreeBSD.org>
Date:   Thu Jun 20 14:13:10 2019 +0000

    Add FIOBMAP2 ioctl
    
    This ioctl exposes VOP_BMAP information to userland. It can be used by
    programs like fragmentation analyzers and optimized cp implementations. But
    I'm using it to test fusefs's VOP_BMAP implementation. The "2" in the name
    distinguishes it from the similar but incompatible FIBMAP ioctls in NetBSD
    and Linux.  FIOBMAP2 differs from FIBMAP in that it uses a 64-bit block
    number instead of 32-bit, and it also returns runp and runb.
    
    Reviewed by:    mckusick
    MFC after:      2 weeks
    Sponsored by:   The FreeBSD Foundation
    Differential Revision:  https://reviews.freebsd.org/D20705

Diff:
---
 newlib/libc/sys/rtems/include/sys/filio.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/newlib/libc/sys/rtems/include/sys/filio.h b/newlib/libc/sys/rtems/include/sys/filio.h
index 868fe53c2..1a3fc4293 100644
--- a/newlib/libc/sys/rtems/include/sys/filio.h
+++ b/newlib/libc/sys/rtems/include/sys/filio.h
@@ -62,6 +62,13 @@ struct fiodgname_arg {
 /* Handle lseek SEEK_DATA and SEEK_HOLE for holey file knowledge. */
 #define	FIOSEEKDATA	_IOWR('f', 97, off_t)	/* SEEK_DATA */
 #define	FIOSEEKHOLE	_IOWR('f', 98, off_t)	/* SEEK_HOLE */
+struct fiobmap2_arg {
+	int64_t	bn;
+	int	runp;
+	int	runb;
+};
+/* Get the file's bmap info for the logical block bn */
+#define FIOBMAP2	_IOWR('f', 99, struct fiobmap2_arg)
 
 #ifdef _KERNEL
 #ifdef COMPAT_FREEBSD32