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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2010-02-22 17:05:02 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-02-25 10:34:58 +0100 |
| commit | 1304afb225288a2e250d6a7495462c28e5509cbb (patch) | |
| tree | 1ba76e304f718f7ce89532e1c4d276b4af439c07 /kernel/rcutree.h | |
| parent | 20133cfce7d0bbdcc0c398301030c091f5675c88 (diff) | |
| download | blackbird-op-linux-1304afb225288a2e250d6a7495462c28e5509cbb.tar.gz blackbird-op-linux-1304afb225288a2e250d6a7495462c28e5509cbb.zip | |
rcu: Convert to raw_spinlocks
The spinlocks in rcutree need to be real spinlocks in
preempt-rt. Convert them to raw_spinlocks.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: dhowells@redhat.com
LKML-Reference: <1266887105-1528-18-git-send-email-paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/rcutree.h')
| -rw-r--r-- | kernel/rcutree.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/rcutree.h b/kernel/rcutree.h index 7495fed49c30..6a82c34ce669 100644 --- a/kernel/rcutree.h +++ b/kernel/rcutree.h @@ -90,7 +90,7 @@ struct rcu_dynticks { * Definition for node within the RCU grace-period-detection hierarchy. */ struct rcu_node { - spinlock_t lock; /* Root rcu_node's lock protects some */ + raw_spinlock_t lock; /* Root rcu_node's lock protects some */ /* rcu_state fields as well as following. */ unsigned long gpnum; /* Current grace period for this node. */ /* This will either be equal to or one */ @@ -291,7 +291,7 @@ struct rcu_state { /* End of fields guarded by root rcu_node's lock. */ - spinlock_t onofflock; /* exclude on/offline and */ + raw_spinlock_t onofflock; /* exclude on/offline and */ /* starting new GP. Also */ /* protects the following */ /* orphan_cbs fields. */ @@ -301,7 +301,7 @@ struct rcu_state { /* going offline. */ struct rcu_head **orphan_cbs_tail; /* And tail pointer. */ long orphan_qlen; /* Number of orphaned cbs. */ - spinlock_t fqslock; /* Only one task forcing */ + raw_spinlock_t fqslock; /* Only one task forcing */ /* quiescent states. */ unsigned long jiffies_force_qs; /* Time at which to invoke */ /* force_quiescent_state(). */ |
