| commit | 9fef3d2d15ae8ca24e4a145f2e189eea145d18c2 | [log] [tgz] |
|---|---|---|
| author | Milton Miller <miltonm@bga.com> | Thu Jan 08 02:14:18 2009 +0000 |
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | Tue Jan 13 14:48:01 2009 +1100 |
| tree | deb3764686dcbeb5ab013ecf6183d55c514f216f | |
| parent | a1c5a8932bbb75b550deb156d890027827fc9d6e [diff] |
hvc_console: Change an mb() to smp_mb() and add some comments I remember some history on this barrier. There was a race between open via /dev/console and the tty being fully setup. Its also why there is a temporary variable and the global is assigned at the end of the function. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>