tree 70337a7fd95f71d5f39aa9d168c09be2ff3465a1
parent 8c1fb49ba107c7db9441ef6ec0ab5830d112cc2a
author Peter Hurley <peter@hurleysoftware.com> 1371303373 -0400
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1374623229 -0700

tty: Use non-atomic state to signal flip buffer flush pending

Atomic bit ops are no longer required to indicate a flip buffer
flush is pending, as the flush_mutex is sufficient barrier.

Remove the unnecessary port .iflags field and localize flip buffer
state to struct tty_bufhead.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>