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authorRobert Love <robert.w.love@intel.com>2009-03-17 11:41:30 -0700
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-04-03 09:22:57 -0500
commit38eccabd1067b93af0fedbf447ab846e7df1ca66 (patch)
tree10f648d5b4cb1fc3754ec048da53be68117d467a /drivers/scsi
parent2df71b1a5bea7955872dbab5cf89183da697d0f9 (diff)
downloadop-kernel-dev-38eccabd1067b93af0fedbf447ab846e7df1ca66.zip
op-kernel-dev-38eccabd1067b93af0fedbf447ab846e7df1ca66.tar.gz
[SCSI] fcoe: Initialize all possilbe skb_queue(s) when module is loaded
Currently the skb_queue is initialized every time the associated CPU goes online. This patch has libfcoe initializing the skb_queue for all possible CPUs when the module is loaded. This patch also re-orders some declarations in the fcoe_rcv() function so the structure declarations are grouped before the primitive declarations. Lastly, this patch converts all CPU indicies to use unsigned int since CPU indicies should not be negative. Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/fcoe/libfcoe.c21
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index 0d6f5be..3865d93 100644
--- a/drivers/scsi/fcoe/libfcoe.c
+++ b/drivers/scsi/fcoe/libfcoe.c
@@ -97,7 +97,7 @@ static struct notifier_block fcoe_cpu_notifier = {
*
* Returns: none
*/
-static void fcoe_create_percpu_data(int cpu)
+static void fcoe_create_percpu_data(unsigned int cpu)
{
struct fc_lport *lp;
struct fcoe_softc *fc;
@@ -121,7 +121,7 @@ static void fcoe_create_percpu_data(int cpu)
*
* Retuns: none
*/
-static void fcoe_destroy_percpu_data(int cpu)
+static void fcoe_destroy_percpu_data(unsigned int cpu)
{
struct fc_lport *lp;
struct fcoe_softc *fc;
@@ -183,9 +183,9 @@ int fcoe_rcv(struct sk_buff *skb, struct net_device *dev,
struct fcoe_softc *fc;
struct fcoe_dev_stats *stats;
struct fc_frame_header *fh;
- unsigned short oxid;
- int cpu_idx;
struct fcoe_percpu_s *fps;
+ unsigned short oxid;
+ unsigned int cpu_idx;
fc = container_of(ptype, struct fcoe_softc, fcoe_packet_type);
lp = fc->lp;
@@ -292,7 +292,7 @@ static int fcoe_get_paged_crc_eof(struct sk_buff *skb, int tlen)
{
struct fcoe_percpu_s *fps;
struct page *page;
- int cpu_idx;
+ unsigned int cpu_idx;
cpu_idx = get_cpu();
fps = fcoe_percpu[cpu_idx];
@@ -1366,10 +1366,9 @@ EXPORT_SYMBOL_GPL(fcoe_libfc_config);
*/
static int __init fcoe_init(void)
{
- int cpu;
+ unsigned int cpu;
struct fcoe_percpu_s *p;
-
INIT_LIST_HEAD(&fcoe_hostlist);
rwlock_init(&fcoe_hostlist_lock);
@@ -1377,6 +1376,12 @@ static int __init fcoe_init(void)
register_cpu_notifier(&fcoe_cpu_notifier);
#endif /* CONFIG_HOTPLUG_CPU */
+ for_each_possible_cpu(cpu) {
+ p = fcoe_percpu[cpu];
+ p->cpu = cpu;
+ skb_queue_head_init(&p->fcoe_rx_list);
+ }
+
/*
* initialize per CPU interrupt thread
*/
@@ -1392,9 +1397,7 @@ static int __init fcoe_init(void)
* initialize the semaphore and skb queue head
*/
if (likely(!IS_ERR(p->thread))) {
- p->cpu = cpu;
fcoe_percpu[cpu] = p;
- skb_queue_head_init(&p->fcoe_rx_list);
kthread_bind(p->thread, cpu);
wake_up_process(p->thread);
} else {
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