From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail144.messagelabs.com (mail144.messagelabs.com [216.82.254.51]) by kanga.kvack.org (Postfix) with SMTP id 34A606B005D for ; Wed, 17 Jun 2009 20:28:24 -0400 (EDT) Received: from localhost (smtp.ultrahosting.com [127.0.0.1]) by smtp.ultrahosting.com (Postfix) with ESMTP id 8208582C2E4 for ; Wed, 17 Jun 2009 20:45:33 -0400 (EDT) Received: from smtp.ultrahosting.com ([74.213.175.254]) by localhost (smtp.ultrahosting.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Fo1LTunjvNnp for ; Wed, 17 Jun 2009 20:45:33 -0400 (EDT) Received: from gentwo.org (unknown [74.213.171.31]) by smtp.ultrahosting.com (Postfix) with ESMTP id 0412E82C4D8 for ; Wed, 17 Jun 2009 20:45:18 -0400 (EDT) Message-Id: <20090617203444.007576712@gentwo.org> References: <20090617203337.399182817@gentwo.org> Date: Wed, 17 Jun 2009 16:33:43 -0400 From: cl@linux-foundation.org Subject: [this_cpu_xx V2 06/19] this_cpu_ptr: Straight transformations Content-Disposition: inline; filename=this_cpu_ptr_straight_transforms Sender: owner-linux-mm@kvack.org To: akpm@linux-foundation.org Cc: linux-mm@kvack.org, David Howells , Tejun Heo , Ingo Molnar , Rusty Russell , Eric Dumazet , davem@davemloft.net List-ID: 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 cc: Tejun Heo cc: Ingo Molnar cc: Rusty Russell cc: Eric Dumazet Signed-off-by: Christoph Lameter --- drivers/infiniband/hw/ehca/ehca_irq.c | 3 +-- drivers/net/chelsio/sge.c | 5 ++--- drivers/net/loopback.c | 2 +- fs/ext4/mballoc.c | 2 +- 4 files changed, 5 insertions(+), 7 deletions(-) Index: linux-2.6/drivers/net/chelsio/sge.c =================================================================== --- linux-2.6.orig/drivers/net/chelsio/sge.c 2009-06-15 17:23:25.000000000 -0500 +++ linux-2.6/drivers/net/chelsio/sge.c 2009-06-15 17:53:41.000000000 -0500 @@ -1378,7 +1378,7 @@ static void sge_rx(struct sge *sge, stru } __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 @@ int t1_start_xmit(struct sk_buff *skb, s { 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; Index: linux-2.6/drivers/net/loopback.c =================================================================== --- linux-2.6.orig/drivers/net/loopback.c 2009-06-15 17:23:25.000000000 -0500 +++ linux-2.6/drivers/net/loopback.c 2009-06-15 17:54:41.000000000 -0500 @@ -80,7 +80,7 @@ static int loopback_xmit(struct sk_buff /* 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)) { Index: linux-2.6/fs/ext4/mballoc.c =================================================================== --- linux-2.6.orig/fs/ext4/mballoc.c 2009-06-15 17:22:07.000000000 -0500 +++ linux-2.6/fs/ext4/mballoc.c 2009-06-15 17:53:41.000000000 -0500 @@ -4182,7 +4182,7 @@ static void ext4_mb_group_or_file(struct * 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; Index: linux-2.6/drivers/infiniband/hw/ehca/ehca_irq.c =================================================================== --- linux-2.6.orig/drivers/infiniband/hw/ehca/ehca_irq.c 2009-06-15 17:22:07.000000000 -0500 +++ linux-2.6/drivers/infiniband/hw/ehca/ehca_irq.c 2009-06-15 17:53:41.000000000 -0500 @@ -826,8 +826,7 @@ static void __cpuinit take_over_work(str 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); -- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org