Hi,
    We are using Coda under Linux 2.2.13.  The link count of a directory
in a Coda file system does not appear to be updated when a subdirectory
is removed.  Assuming that "/" is a Coda file system, the following probe
program should be silent.  When the bug is present it prints an error
message:

	#include	<sys/types.h>
	#include	<sys/stat.h>

	main()
	{
		char		*dir	= "/a";
		char		*subdir	= "/a/b";
		struct stat	statb;

		(void)mkdir(dir, 0755);
		(void)mkdir(subdir, 0755);
		(void)stat(dir, &statb);
		(void)rmdir(subdir);
		(void)stat(dir, &statb);
		if (statb.st_nlink != 2)
		{
			printf("bug\n");
			exit(1);
		}

		exit(0);
	}

If .../linux-2.2.13/fs/coda/dir.c:487-488 are changed from

	if (de->d_inode->i_nlink)
		de->d_inode->i_nlink --;

to

	if (de->d_inode->i_nlink)
		de->d_inode->i_nlink --;
	dir->i_nlink--;

then the above probe becomes silent.

This change makes the Coda kernel code track the ext2 `template'
more closely (fs/ext2/namei.c:638) but deviate further from the
NFS code (fs/nfs/dir.c:nfs_rmdir()).

Regards,
bruce.