[BusyBox] patch for bug in coreutils/df.c

[Ramon Bastiaans]

Hi,

Not sure if this is the correct way to submit a patch, but I found a
little bug in the "df" module. I came across this when trying to
integrate the new busybox into a ramdisk we use for systemimager. Here
is what the problem was:

# df
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/root                 1824      1824         0 100% /old_root
tmpfs                   258068     12576    245492   5% /
/dev/hda1              2099680   1747976    351704  83% /a
/dev/hda4             15610380       256  15610124   0% /a/scratch
/dev/hda2              2099712    158240   1941472   8% /a/var
# df /a /old_root
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/hda1              2099680   1747976    351704  83% /a
/dev/root                 1824      1824         0 100% /old_root
# df /
Filesystem           1k-blocks      Used Available Use% Mounted on
#

As you can see for the last command "df /", it doesn't display any
output for the rootfs, which messed up the systemimager boot shell
scripts.

I traced the bug, which was caused by a incorrect "continue" statement.
I fixed it, and added a little check so it doesn't display mountpoints
multiple times

I included my diff patch as a attachment to this e-mail, let me know if
you find this usefull.

Kind regards,
Ramon.

--
Ramon Bastiaans
SARA - Academic Computing Services    
Kruislaan 415                         
1098 SJ Amsterdam                                               

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