[PATCH] linprocfs dofilesystems

[John Baldwin]

On Friday 08 January 2010 12:19:29 pm Fernando Apesteguía wrote:
> Hi all,
> 
> This patch implements the "filesystems" file in the linux proc fs.
> I have used it for some time without seeing any problems. Let me
> know in case this is useful.
> 
> Tested against 8.0-RELEASE-p1

This patch is not correct.  It seems that /proc/filesystems is a list of 
available filesystems, not a list of mounted filesystems.  E.g.:

> cat /proc/filesystems                                                         
nodev   sysfs                                                                   
nodev   rootfs                                                                  
nodev   bdev
nodev   proc
nodev   sockfs
nodev   binfmt_misc
nodev   usbfs
nodev   usbdevfs
nodev   futexfs
nodev   tmpfs
nodev   pipefs
nodev   eventpollfs
nodev   devpts
        ext2
nodev   ramfs
nodev   hugetlbfs
        iso9660
nodev   relayfs
nodev   mqueue
        ext3
nodev   rpc_pipefs
nodev   nfs
nodev   nfs4
nodev   autofs

To do the same thing in FreeBSD you would need to walk the vfsconf list 
instead.  However, I'm not sure it is worth it to add this unless there
are apps people commonly use that need it.

-- 
John Baldwin