svn commit: r340220 - head/sys/geom

[Rodney W. Grimes]

[ Charset UTF-8 unsupported, converting... ]
> Author: sobomax
> Date: Wed Nov  7 16:28:09 2018
> New Revision: 340220
> URL: https://svnweb.freebsd.org/changeset/base/340220
> 
> Log:
>   Revert r340187, it breaks EOD (end-of-device) detection logic. Turns out,
>   i/o into last_sector+N is handled differently for N==1 and N>1 cases to
>   accomodate that, so some other approach would be needed to fix DIOCGDELETE
>   ioctl(2).
> 
> Modified:
>   head/sys/geom/geom_io.c
> 
> Modified: head/sys/geom/geom_io.c
> ==============================================================================
> --- head/sys/geom/geom_io.c	Wed Nov  7 16:22:18 2018	(r340219)
> +++ head/sys/geom/geom_io.c	Wed Nov  7 16:28:09 2018	(r340220)
> @@ -420,8 +420,6 @@ g_io_check(struct bio *bp)
>  			return (EIO);
>  		if (bp->bio_offset > pp->mediasize)
>  			return (EIO);
> -		if (bp->bio_offset == pp->mediasize && bp->bio_length > 0)
> -			return (EIO);
>  
>  		/* Truncate requests to the end of providers media. */
>  		excess = bp->bio_offset + bp->bio_length;

Thanks, I think this is the best thing to do while investigation goes on.
-- 
Rod Grimes                                                 rgrimes at freebsd.org