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Subject[ANNOUNCE] 3.2.19-rt31
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Dear RT Folks,

I'm pleased to announce the 3.2.19-rt31 stable release.


You can get this release via the git tree at:

git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git

Head SHA1: 9ff5baa988e758044a62a05b1f668b5ff556517c


Or to build 3.2.19-rt31 directly, the following patches should be applied:

http://www.kernel.org/pub/linux/kernel/v3.x/linux-3.2.tar.xz

http://www.kernel.org/pub/linux/kernel/v3.x/patch-3.2.19.xz

http://www.kernel.org/pub/linux/kernel/projects/rt/3.2/patch-3.2.19-rt31.patch.xz


You can also build from 3.2.19-rt30 by applying the incremental patch:

http://www.kernel.org/pub/linux/kernel/projects/rt/3.2/incr/patch-3.2.19-rt30-rt31.patch.xz



Enjoy,

-- Steve


Changes from 3.2.19-rt30:

---

John Kacur (1):
scsi: qla2xxx: Use local_irq_save_nort() in qla2x00_poll

Priyanka Jain (1):
net,RT:REmove preemption disabling in netif_rx()

Steven Rostedt (1):
Linux 3.2.19-rt31

Thomas Gleixner (1):
mips-remove-smp-reserve-lock.patch

----
arch/mips/cavium-octeon/smp.c | 6 ------
drivers/scsi/qla2xxx/qla_inline.h | 4 ++--
localversion-rt | 2 +-
net/core/dev.c | 8 ++++----
4 files changed, 7 insertions(+), 13 deletions(-)
---------------------------
diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c
index efcfff4..86fce15 100644
--- a/arch/mips/cavium-octeon/smp.c
+++ b/arch/mips/cavium-octeon/smp.c
@@ -257,8 +257,6 @@ DEFINE_PER_CPU(int, cpu_state);

extern void fixup_irqs(void);

-static DEFINE_SPINLOCK(smp_reserve_lock);
-
static int octeon_cpu_disable(void)
{
unsigned int cpu = smp_processor_id();
@@ -266,8 +264,6 @@ static int octeon_cpu_disable(void)
if (cpu == 0)
return -EBUSY;

- spin_lock(&smp_reserve_lock);
-
cpu_clear(cpu, cpu_online_map);
cpu_clear(cpu, cpu_callin_map);
local_irq_disable();
@@ -277,8 +273,6 @@ static int octeon_cpu_disable(void)
flush_cache_all();
local_flush_tlb_all();

- spin_unlock(&smp_reserve_lock);
-
return 0;
}

diff --git a/drivers/scsi/qla2xxx/qla_inline.h b/drivers/scsi/qla2xxx/qla_inline.h
index 9902834..6d01db6 100644
--- a/drivers/scsi/qla2xxx/qla_inline.h
+++ b/drivers/scsi/qla2xxx/qla_inline.h
@@ -36,12 +36,12 @@ qla2x00_poll(struct rsp_que *rsp)
{
unsigned long flags;
struct qla_hw_data *ha = rsp->hw;
- local_irq_save(flags);
+ local_irq_save_nort(flags);
if (IS_QLA82XX(ha))
qla82xx_poll(0, rsp);
else
ha->isp_ops->intr_handler(0, rsp);
- local_irq_restore(flags);
+ local_irq_restore_nort(flags);
}

static inline uint8_t *
diff --git a/localversion-rt b/localversion-rt
index b72862e..a68b433 100644
--- a/localversion-rt
+++ b/localversion-rt
@@ -1 +1 @@
--rt30
+-rt31
diff --git a/net/core/dev.c b/net/core/dev.c
index 811100d..578a74d 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3030,7 +3030,7 @@ int netif_rx(struct sk_buff *skb)
struct rps_dev_flow voidflow, *rflow = &voidflow;
int cpu;

- preempt_disable();
+ migrate_disable();
rcu_read_lock();

cpu = get_rps_cpu(skb->dev, skb, &rflow);
@@ -3040,13 +3040,13 @@ int netif_rx(struct sk_buff *skb)
ret = enqueue_to_backlog(skb, cpu, &rflow->last_qtail);

rcu_read_unlock();
- preempt_enable();
+ migrate_enable();
}
#else
{
unsigned int qtail;
- ret = enqueue_to_backlog(skb, get_cpu(), &qtail);
- put_cpu();
+ ret = enqueue_to_backlog(skb, get_cpu_light(), &qtail);
+ put_cpu_light();
}
#endif
return ret;
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