| commit | 7bfe0b7116be207cf2204ae06335cc89d8f8ee02 | [log] [tgz] |
|---|---|---|
| author | Peter Hurley <peter@hurleysoftware.com> | Sat Jun 15 09:36:08 2013 -0400 |
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Tue Jul 23 16:47:08 2013 -0700 |
| tree | 03175cd2ce9dd8013c4aaa8e2dd426767aa1a4c7 | |
| parent | 7391ee16950e772076d321792d9fbf030f921345 [diff] |
tty: Track flip buffer memory limit atomically Lockless flip buffers require atomically updating the bytes-in-use watermark. The pty driver also peeks at the watermark value to limit memory consumption to a much lower value than the default; query the watermark with new fn, tty_buffer_space_avail(). Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>