Changes from 1.1.54 to 1.1.55

These changes are archived on ftp.crynwr.com:pub/kchanges and http://www.crynwr.com/kchanges. I cannot answer questions about Linux -- I merely summarize the kernel patches after reading them. I try to make them useful to everyone, but kernel hackers should take them with a grain of salt and read the patches themselves. The patch file is patch55.gz

• Turn off SILENT_DC_CLEAR (disk change clear) by default.
• Fiddle with 1.6 5.25", 1.6Mb, 1.68Mb, and 1.76 3.5" floppy parameters.
• If we can't hit track 0 when recalibrating a floppy, give an error.
• When formatting a floppy, turn off FD_RAW_NEED_DISK (this lets you insert the new one).
• Source cleanup (better variables, better code, better indentation, etc) in hard disk driver.
• Added missing cleanup_module function to lp.c (don't remove module if lp busy).
• Change sound Makefile to works with /bin/dnsdomainname.
• ELF executables forgot to set fsuid/fsgid.
• All the filesystem drivers' dir.c code was changed to eliminate a race condition where a program reading the directory to find names might find the directory block changed out from under itself!
• TTY line discipline drivers can be registered AND unregistered on the fly.
• ENOTCONN check missing in tcp_sendto()
• TCP FIN correctly doesn't require a reset.

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