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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2010-04-25 21:04:29 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2010-05-10 11:08:35 -0700 |
| commit | 77e38ed347162423c6b72e06c865a121081c2bb6 (patch) | |
| tree | 328b746af71b47c4af97e6ea06dc24b12528a955 /kernel/res_counter.c | |
| parent | d14aada8e20bdf81ffd43f433b123972cf575b32 (diff) | |
rcu: RCU_FAST_NO_HZ must check RCU dyntick state
The current version of RCU_FAST_NO_HZ reproduces the old CLASSIC_RCU
dyntick-idle bug, as it fails to detect CPUs that have interrupted
or NMIed out of dyntick-idle mode. Fix this by making rcu_needs_cpu()
check the state in the per-CPU rcu_dynticks variables, thus correctly
detecting the dyntick-idle state from an RCU perspective.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/res_counter.c')
0 files changed, 0 insertions, 0 deletions