K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2020-07-04T06:25:41.620433Z
K 7
svn:log
V 261
linux: fix ioctl performance for termios

TCGETS et al are frequently issued by Linux binaries while the previous code
avoidably ping-pongs a global sx lock and serializes on Giant.

Note that even with the fix the common case will serialize on a per-tty lock.

END