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* [newlib-cygwin] Add FIOBMAP2 ioctl
@ 2022-07-11 11:50 Sebastian Huber
  0 siblings, 0 replies; only message in thread
From: Sebastian Huber @ 2022-07-11 11:50 UTC (permalink / raw)
  To: newlib-cvs;h=8fe49db783fd0841296afaf0226f712bc5967f4b

commit 8fe49db783fd0841296afaf0226f712bc5967f4b
Author: Alan Somers <>
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:

 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

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