On Thu, Mar 14, 2019 at 07:25:28PM -0500, Eric Sandeen wrote: > Perhaps the reason -k was broken is that nobody knew it existed? > > Fixes: 938904c4 ("xfs_io: add fzero command for zeroing range via fallocate") > Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx> Looks ok, Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx> --D > --- > > diff --git a/man/man8/xfs_io.8 b/man/man8/xfs_io.8 > index fbf50df..980dcfd 100644 > --- a/man/man8/xfs_io.8 > +++ b/man/man8/xfs_io.8 > @@ -516,10 +516,13 @@ Call fallocate with FALLOC_FL_UNSHARE_RANGE flag as described in the > .BR fallocate (2) > manual page to unshare all shared blocks within the range. > .TP > -.BI fzero " offset length" > +.BI "fzero [ \-k ]" " offset length" > Call fallocate with FALLOC_FL_ZERO_RANGE flag as described in the > .BR fallocate (2) > manual page to allocate and zero blocks within the range. > +With the > +.B -k > +option, use the FALLOC_FL_KEEP_SIZE flag as well. > .TP > .BI zero " offset length" > Call xfsctl with >