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authorRusty Russell <rusty@rustcorp.com.au>2015-03-05 01:19:19 +0100
committerRusty Russell <rusty@rustcorp.com.au>2015-03-10 04:24:42 +0100
commitc8ed00107b60b4a890798677d75e5c2910f393bb (patch)
tree48a0440907bbef7d8d1d71d090881ba00192ee65 /drivers/scsi/hpsa.c
parentcpumask: remove deprecated functions. (diff)
downloadlinux-c8ed00107b60b4a890798677d75e5c2910f393bb.tar.xz
linux-c8ed00107b60b4a890798677d75e5c2910f393bb.zip
Fix weird uses of num_online_cpus().
This may be OK in archs with contiguous CPU numbers and without hotplug CPUs, but it sets a terrible example. And open-coding it like drivers/scsi/hpsa.c is just weird. BTRFS has a weird comparison with num_online_cpus() too, but since BTRFS just screwed up my test machines' root partition, I'm not touching it :) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Reported-by: Oleg Drokin <green@linuxhacker.ru>
Diffstat (limited to 'drivers/scsi/hpsa.c')
-rw-r--r--drivers/scsi/hpsa.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index a1cfbd3dda47..8eab107b53fb 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -6632,14 +6632,12 @@ static void fail_all_outstanding_cmds(struct ctlr_info *h)
static void set_lockup_detected_for_all_cpus(struct ctlr_info *h, u32 value)
{
- int i, cpu;
+ int cpu;
- cpu = cpumask_first(cpu_online_mask);
- for (i = 0; i < num_online_cpus(); i++) {
+ for_each_online_cpu(cpu) {
u32 *lockup_detected;
lockup_detected = per_cpu_ptr(h->lockup_detected, cpu);
*lockup_detected = value;
- cpu = cpumask_next(cpu, cpu_online_mask);
}
wmb(); /* be sure the per-cpu variables are out to memory */
}