From: Darrick J. Wong Date: Fri, 22 Jun 2018 19:15:42 +0000 (-0500) Subject: xfs_io: clarify -c in bmap documentation X-Git-Tag: v4.17.0-rc1~1 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=c9a048f25840b40f350bb55d6bbbf3bf8daa60e9;p=users%2Fhch%2Fxfsprogs.git xfs_io: clarify -c in bmap documentation The bmap -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 Reviewed-by: Eric Sandeen Signed-off-by: Eric Sandeen --- diff --git a/io/bmap.c b/io/bmap.c index 2e4ff7b23..345f276e0 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 d9fede248..dd91589bd 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.