diff options
| author | Peter Hurley <peter@hurleysoftware.com> | 2013-06-15 09:14:22 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-23 16:43:00 -0700 |
| commit | a2f73be8ee36e48f11f89ab705beb3c587a2f320 (patch) | |
| tree | 1612dd60ae378dfb1369001c2eed60265797f1c0 /drivers/tty/tty_ioctl.c | |
| parent | bc5a5e3f45d047844830233fb95b19a95c864a0f (diff) | |
n_tty: Remove read_cnt
Storing the read_cnt creates an unnecessary shared variable
between the single-producer (n_tty_receive_buf()) and the
single-consumer (n_tty_read()).
Compute read_cnt from head & tail instead of storing.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/tty_ioctl.c')
0 files changed, 0 insertions, 0 deletions