v1.38 "mkfs.jffs2 --pad" goes overboard

Why is mkfs.jffs2 generating a larger file than I want?

  # /sbin/mkfs.jffs2 --version
  mkfs.jffs2: revision 1.38

  # /sbin/mkfs.jffs2 --pad=10485760 --little-endian --squash -e 16384 -d root -o jffs2.dat
  # ls -al jffs2.dat
  -rw-r--r--    1 root     root     10551296 May 25 13:36 jffs2.dat
  # 

My partition is only 10MB. That's (1024*1024*10) = 10485760 bytes. It is divisible by the 16k erase block. So why does mkfs.jffs2 insist on writing 65536 more bytes than I want? Am I doing something wrong or is this a bug?

Dave

Never mind. My root dir had more than 10MB in it because I forgot to strip some files. Sorry.

Me> Why is mkfs.jffs2 generating a larger file than I want?
Me> # /sbin/mkfs.jffs2 --version
Me> mkfs.jffs2: revision 1.38

Me>   # /sbin/mkfs.jffs2 --pad=10485760 --little-endian --squash -e 16384 -d root -o jffs2.dat
Me>   # ls -al jffs2.dat
Me>   -rw-r--r--    1 root     root     10551296 May 25 13:36 jffs2.dat
Me>   # 

Me> My partition is only 10MB. That's (1024*1024*10) = 10485760 bytes. Me> It is divisible by the 16k erase block. So why does mkfs.jffs2 insist Me> on writing 65536 more bytes than I want? Am I doing something wrong Me> or is this a bug?