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authorChristoph Lameter <cl@linux.com>2010-12-08 17:42:22 +0100
committerTejun Heo <tj@kernel.org>2010-12-17 15:18:05 +0100
commitcd85fc58cd71bf6b89612efafb9a84e655ed7d66 (patch)
tree263a03558fec644dfaa6b389106bb6f7d6bacfbd /kernel/taskstats.c
parentb29c617af3b09d150d3889836c24d39564b39180 (diff)
downloadlinaro-lsk-cd85fc58cd71bf6b89612efafb9a84e655ed7d66.tar.gz
taskstats: Use this_cpu_ops
Use this_cpu_inc_return in one place and avoid ugly __raw_get_cpu in another. V3->V4: - Fix off by one. V4-V4f: - Use &listener_array Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel/taskstats.c')
-rw-r--r--kernel/taskstats.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index c8231fb1570..5f82ccd1039 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -89,8 +89,7 @@ static int prepare_reply(struct genl_info *info, u8 cmd, struct sk_buff **skbp,
return -ENOMEM;
if (!info) {
- int seq = get_cpu_var(taskstats_seqnum)++;
- put_cpu_var(taskstats_seqnum);
+ int seq = this_cpu_inc_return(taskstats_seqnum) - 1;
reply = genlmsg_put(skb, 0, seq, &family, 0, cmd);
} else
@@ -581,7 +580,7 @@ void taskstats_exit(struct task_struct *tsk, int group_dead)
fill_tgid_exit(tsk);
}
- listeners = &__raw_get_cpu_var(listener_array);
+ listeners = __this_cpu_ptr(&listener_array);
if (list_empty(&listeners->list))
return;