From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from aserp2120.oracle.com ([141.146.126.78]:54504 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932686AbeFUUOY (ORCPT ); Thu, 21 Jun 2018 16:14:24 -0400 Date: Thu, 21 Jun 2018 13:14:04 -0700 From: "Darrick J. Wong" Subject: [PATCH] xfs_io: clarify -c from documentation Message-ID: <20180621201404.GI4838@magnolia> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: Eric Sandeen Cc: xfs From: Darrick J. Wong The -c parameter displays the cow fork information for a file if the kernel was built with CONFIG_XFS_DEBUG=y. Since xfs_bmap doesn't support it and it doesn't work generally, remove it from the manpages. However, xfstests relies on the -c command to be documented in the help screen so leave it there with a warning about its use. Signed-off-by: Darrick J. Wong --- io/bmap.c | 1 + man/man8/xfs_io.8 | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/io/bmap.c b/io/bmap.c index 2e4ff7b2..345f276e 100644 --- a/io/bmap.c +++ b/io/bmap.c @@ -43,6 +43,7 @@ bmap_help(void) " All the file offsets and disk blocks are in units of 512-byte blocks.\n" " -a -- prints the attribute fork map instead of the data fork.\n" " -c -- prints the copy-on-write fork map instead of the data fork.\n" +" This works only if the kernel was compiled in debug mode.\n" " -d -- suppresses a DMAPI read event, offline portions shown as holes.\n" " -e -- print delayed allocation extents.\n" " -l -- also displays the length of each extent in 512-byte blocks.\n" diff --git a/man/man8/xfs_io.8 b/man/man8/xfs_io.8 index 2bd77ee8..eb2b862e 100644 --- a/man/man8/xfs_io.8 +++ b/man/man8/xfs_io.8 @@ -315,7 +315,7 @@ See the .B pwrite command. .TP -.BI "bmap [ \-acdelpv ] [ \-n " nx " ]" +.BI "bmap [ \-adelpv ] [ \-n " nx " ]" Prints the block mapping for the current open file. Refer to the .BR xfs_bmap (8) manual page for complete documentation.