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To:	9fans@cse.psu.edu (Plan 9 from Bell Labs fans)
Subject: Small patch for kfs to show free space on disk
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Date:	Thu, 9 May 1996 18:22:44 -0400
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From:	Nickolay Saukh <nms@nns.ru>
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Status: RO

Here is small patch for /sys/src/cmd/disk/kfs/con.c which allows
to get the following numbers from kfs

	number of free blocks
	file system size in blocks
	block size

Don't forget rebuild kernel (9pcdisk for PCs).

---------- cut here to destroy your CRT ----------
417a
	"free",	cmd_free, "",
.
408a
void
cmd_free(void)
{
	Iobuf *p;
	Superb *s;

	p = getbuf(cur_fs->dev, superaddr(cur_fs->dev), Bread);
	s = (Superb*) p->iobuf;
	cprint("%ld %ld %d\n", s->tfree, s->fsize, RBUFSIZE);
	putbuf(p);
}

.
---------- cut here to destroy your CRT ----------