Messages in this thread Patch in this message | | | From | Hoang-Nam Nguyen <> | Subject | [PATCH 2.6.21 1/4] ehca: fix improper use of yield with spinlock held | Date | Wed, 24 Jan 2007 00:10:36 +0100 |
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Here is a patch for ehca_cq.c that fixes improper use of yield with spinlock held. Thanks Nam
Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> ---
ehca_cq.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletion(-)
diff -Nurp infiniband_orig/drivers/infiniband/hw/ehca/ehca_cq.c infiniband_work/drivers/infiniband/hw/ehca/ehca_cq.c --- infiniband_orig/drivers/infiniband/hw/ehca/ehca_cq.c 2007-01-19 19:40:32.000000000 +0100 +++ infiniband_work/drivers/infiniband/hw/ehca/ehca_cq.c 2007-01-20 00:15:34.000000000 +0100 @@ -344,8 +344,11 @@ int ehca_destroy_cq(struct ib_cq *cq) unsigned long flags; spin_lock_irqsave(&ehca_cq_idr_lock, flags); - while (my_cq->nr_callbacks) + while (my_cq->nr_callbacks) { + spin_unlock_irqrestore(&ehca_cq_idr_lock, flags); yield(); + spin_lock_irqsave(&ehca_cq_idr_lock, flags); + } idr_remove(&ehca_cq_idr, my_cq->token); spin_unlock_irqrestore(&ehca_cq_idr_lock, flags); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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