diff options
| author | Andrew Banman | 2017-07-20 17:05:51 -0500 |
|---|---|---|
| committer | Ingo Molnar | 2017-07-21 09:56:25 +0200 |
| commit | 2fe9a5c6ade4dfb53ff1c137cca3828d9d1d0948 (patch) | |
| tree | 38f1f1c2fd93e1bc6d04a9211748536b58a390cd /drivers/mcb | |
| parent | 0bc73048d7baecf94117d1a948853a627e6ba5c8 (diff) | |
x86/platform/uv/BAU: Disable BAU on single hub configurations
The BAU confers no benefit to a UV system running with only one hub/socket.
Permanently disable the BAU driver if there are less than two hubs online
to avoid BAU overhead. We have observed failed boots on single-socket UV4
systems caused by BAU that are avoided with this patch.
Also, while at it, consolidate initialization error blocks and fix a
memory leak.
Signed-off-by: Andrew Banman <abanman@hpe.com>
Acked-by: Russ Anderson <rja@hpe.com>
Acked-by: Mike Travis <mike.travis@hpe.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: tony.ernst@hpe.com
Link: http://lkml.kernel.org/r/1500588351-78016-1-git-send-email-abanman@hpe.com
[ Minor cleanups. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/mcb')
0 files changed, 0 insertions, 0 deletions