43 lines
1.5 KiB
Diff
43 lines
1.5 KiB
Diff
From: Sven-Thorsten Dietrich <sdietrich@novell.com>
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Date: Fri, 3 Jul 2009 08:30:35 -0500
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Subject: infiniband: Mellanox IB driver patch use _nort() primitives
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Fixes in_atomic stack-dump, when Mellanox module is loaded into the RT
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Kernel.
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Michael S. Tsirkin <mst@dev.mellanox.co.il> sayeth:
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"Basically, if you just make spin_lock_irqsave (and spin_lock_irq) not disable
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interrupts for non-raw spinlocks, I think all of infiniband will be fine without
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changes."
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Signed-off-by: Sven-Thorsten Dietrich <sven@thebigcorporation.com>
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Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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Index: linux-3.2/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
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===================================================================
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--- linux-3.2.orig/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
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+++ linux-3.2/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
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@@ -806,7 +806,7 @@ void ipoib_mcast_restart_task(struct wor
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ipoib_mcast_stop_thread(dev, 0);
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- local_irq_save(flags);
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+ local_irq_save_nort(flags);
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netif_addr_lock(dev);
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spin_lock(&priv->lock);
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@@ -888,7 +888,7 @@ void ipoib_mcast_restart_task(struct wor
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spin_unlock(&priv->lock);
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netif_addr_unlock(dev);
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- local_irq_restore(flags);
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+ local_irq_restore_nort(flags);
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/* We have to cancel outside of the spinlock */
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list_for_each_entry_safe(mcast, tmcast, &remove_list, list) {
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