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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-08-21 07:58:54 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-21 08:15:10 -0400 |
| commit | a8af7246c114bfd939e539f9566b872c06f6225c (patch) | |
| tree | d624ea07739b92d3ff1a676a3244fd7188d8198f /Documentation/kernel-doc-nano-HOWTO.txt | |
| parent | cde7e5ca4e329a157108769d1f752d191cbb71c6 (diff) | |
sched: Avoid division by zero
Patch a5004278f0525dcb9aa43703ef77bf371ea837cd (sched: Fix
cgroup smp fairness) introduced the possibility of a
divide-by-zero because load-balancing is not synchronized
between sched_domains.
This can cause the state of cpus to change between the first
and second loop over the sched domain in tg_shares_up().
Reported-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Jes Sorensen <jes@sgi.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <1250855934.7538.30.camel@twins>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation/kernel-doc-nano-HOWTO.txt')
0 files changed, 0 insertions, 0 deletions