From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Darrick J. Wong" Subject: [PATCH] ioctl_ficlonerange.2: mention a subtlety with length == 0 Date: Thu, 14 Jul 2016 11:11:11 -0700 Message-ID: <20160714181111.GC5215@birch.djwong.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: "Michael Kerrisk (man-pages)" Cc: linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-man@vger.kernel.org I forgot to document that passing length == 0 to clonerange actually makes it clone all the way to EOF, so do that now. Signed-off-by: Darrick J. Wong --- man2/ioctl_ficlonerange.2 | 3 +++ 1 file changed, 3 insertions(+) diff --git a/man2/ioctl_ficlonerange.2 b/man2/ioctl_ficlonerange.2 index d1da3e6..c4715d0 100644 --- a/man2/ioctl_ficlonerange.2 +++ b/man2/ioctl_ficlonerange.2 @@ -59,6 +59,9 @@ into the file at offset .IR dest_offset ", provided that both are files. +If +.IR src_length +is zero, the ioctl reflinks to the end of the source file. This information is conveyed in a structure of the following form: .in +4n