From: Anna Schumaker <Anna.Schumaker@netapp.com>
To: david@fromorbit.com
Cc: anna.schumaker@netapp.com, xfs@oss.sgi.com
Subject: [PATCH] xfs_io: Update man page for copy_range command
Date: Mon, 1 Aug 2016 15:00:42 -0400 [thread overview]
Message-ID: <20160801190042.8652-1-Anna.Schumaker@Netapp.com> (raw)
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
---
man/man8/xfs_io.8 | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/man/man8/xfs_io.8 b/man/man8/xfs_io.8
index b0300bb..2c56f09 100644
--- a/man/man8/xfs_io.8
+++ b/man/man8/xfs_io.8
@@ -556,6 +556,39 @@ Print timing statistics in a condensed format.
.TP
.B \-q
Do not print timing statistics at all.
+.RE
+.PD
+.TP
+.TP
+.BI "copy_range [ -s " src_offset " ] [ -d " dst_offset " ] [ -l " length " ] src_file"
+On filesystems that support the
+.BR copy_file_range (2)
+system call, copies data from the
+.I src_file
+into the open file. If
+.IR src_offset ,
+.IR dst_offset ,
+and
+.I length
+are omitted the contents of src_file will be copied to the beginning of the
+open file, overwriting any data already there.
+.RS 1.0i
+.PD 0
+.TP 0.4i
+.B \-s
+Copy data from
+.I src_file
+beginning from
+.IR src_offset .
+.TP
+.B \-d
+Copy data into the open file beginning at
+.IR dst_offset .
+.TP
+.B \-l
+Copy up to
+.I length
+bytes of data.
.SH MEMORY MAPPED I/O COMMANDS
.TP
--
2.9.0
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next reply other threads:[~2016-08-01 19:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-01 19:00 Anna Schumaker [this message]
2016-08-02 12:24 ` [PATCH] xfs_io: Update man page for copy_range command Christoph Hellwig
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