diff options
| author | Anton Blanchard | 2010-06-17 14:33:06 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt | 2010-07-08 18:11:42 +1000 |
| commit | 33ad5e4b6cab3ad8cf3afda49b66393f1833150e (patch) | |
| tree | 446a0139ed39a6eb94baa8ccb0742ca5b670d65a /lib/locking-selftest-rlock-hardirq.h | |
| parent | 3880ecb05bc5ece4c6e392a21ea77518e55b4935 (diff) | |
powerpc: Linux cannot run with 0 cores
If we configure with CONFIG_SMP=n or set NR_CPUS less than the number of
SMT threads we will set the max cores property to 0 in the
ibm,client-architecture-support structure. On new versions of firmware that
understand this property it obliges and terminates our partition.
Use DIV_ROUND_UP so we handle not only the CONFIG_SMP=n case but also the
case where NR_CPUS isn't a multiple of the number of SMT threads.
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'lib/locking-selftest-rlock-hardirq.h')
0 files changed, 0 insertions, 0 deletions