tree e4631779d08d03cd27d0b4a5546e4a5768a77ead
parent 501fed45b7e8836ee9373f4d31e2d85e3db6103a
author Peter Hurley <peter@hurleysoftware.com> 1399042571 -0400
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1399155268 -0400

Revert "tty: Fix race condition between __tty_buffer_request_room and flush_to_ldisc"

This reverts commit 6a20dbd6caa2358716136144bf524331d70b1e03.

Although the commit correctly identifies an unsafe race condition
between __tty_buffer_request_room() and flush_to_ldisc(), the commit
fixes the race with an unnecessary spinlock in a lockless algorithm.

The follow-on commit, "tty: Fix lockless tty buffer race" fixes
the race locklessly.

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