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authorChristoph Lameter <cl@linux-foundation.org>2009-10-03 19:48:22 +0900
committerTejun Heo <tj@kernel.org>2009-10-03 19:48:22 +0900
commitca0c9584b1f16bd5911893647cb7f1be82e60554 (patch)
tree7dd9453ec36f56b50ce519ce964af9f35b80f381
parent4ea7334b6de818b0123fa4be32af4cb8ac65174c (diff)
downloadop-kernel-dev-ca0c9584b1f16bd5911893647cb7f1be82e60554.zip
op-kernel-dev-ca0c9584b1f16bd5911893647cb7f1be82e60554.tar.gz
this_cpu: Straight transformations
Use this_cpu_ptr and __this_cpu_ptr in locations where straight transformations are possible because per_cpu_ptr is used with either smp_processor_id() or raw_smp_processor_id(). cc: David Howells <dhowells@redhat.com> Acked-by: Tejun Heo <tj@kernel.org> cc: Ingo Molnar <mingo@elte.hu> cc: Rusty Russell <rusty@rustcorp.com.au> cc: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Tejun Heo <tj@kernel.org>
-rw-r--r--drivers/infiniband/hw/ehca/ehca_irq.c3
-rw-r--r--drivers/net/chelsio/sge.c5
-rw-r--r--drivers/net/loopback.c2
-rw-r--r--fs/ext4/mballoc.c2
4 files changed, 5 insertions, 7 deletions
diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c
index 4b89b79..42be0b1 100644
--- a/drivers/infiniband/hw/ehca/ehca_irq.c
+++ b/drivers/infiniband/hw/ehca/ehca_irq.c
@@ -826,8 +826,7 @@ static void __cpuinit take_over_work(struct ehca_comp_pool *pool, int cpu)
cq = list_entry(cct->cq_list.next, struct ehca_cq, entry);
list_del(&cq->entry);
- __queue_comp_task(cq, per_cpu_ptr(pool->cpu_comp_tasks,
- smp_processor_id()));
+ __queue_comp_task(cq, this_cpu_ptr(pool->cpu_comp_tasks));
}
spin_unlock_irqrestore(&cct->task_lock, flags_cct);
diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
index 8c658cf..109d278 100644
--- a/drivers/net/chelsio/sge.c
+++ b/drivers/net/chelsio/sge.c
@@ -1378,7 +1378,7 @@ static void sge_rx(struct sge *sge, struct freelQ *fl, unsigned int len)
}
__skb_pull(skb, sizeof(*p));
- st = per_cpu_ptr(sge->port_stats[p->iff], smp_processor_id());
+ st = this_cpu_ptr(sge->port_stats[p->iff]);
skb->protocol = eth_type_trans(skb, adapter->port[p->iff].dev);
if ((adapter->flags & RX_CSUM_ENABLED) && p->csum == 0xffff &&
@@ -1780,8 +1780,7 @@ netdev_tx_t t1_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct adapter *adapter = dev->ml_priv;
struct sge *sge = adapter->sge;
- struct sge_port_stats *st = per_cpu_ptr(sge->port_stats[dev->if_port],
- smp_processor_id());
+ struct sge_port_stats *st = this_cpu_ptr(sge->port_stats[dev->if_port]);
struct cpl_tx_pkt *cpl;
struct sk_buff *orig_skb = skb;
int ret;
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index 1bc654a..8ebeb76 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -81,7 +81,7 @@ static netdev_tx_t loopback_xmit(struct sk_buff *skb,
/* it's OK to use per_cpu_ptr() because BHs are off */
pcpu_lstats = dev->ml_priv;
- lb_stats = per_cpu_ptr(pcpu_lstats, smp_processor_id());
+ lb_stats = this_cpu_ptr(pcpu_lstats);
len = skb->len;
if (likely(netif_rx(skb) == NET_RX_SUCCESS)) {
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index bba1282..d527fd3 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3932,7 +3932,7 @@ static void ext4_mb_group_or_file(struct ext4_allocation_context *ac)
* per cpu locality group is to reduce the contention between block
* request from multiple CPUs.
*/
- ac->ac_lg = per_cpu_ptr(sbi->s_locality_groups, raw_smp_processor_id());
+ ac->ac_lg = __this_cpu_ptr(sbi->s_locality_groups);
/* we're going to use group allocation */
ac->ac_flags |= EXT4_MB_HINT_GROUP_ALLOC;
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