From: Alan Somers <asom...@freebsd.org>

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
---
 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
-- 
2.35.3

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