Kumar Sanghvi 581bbe2cd0 RDMA/cxgb4: Serialize calls to CQ's comp_handler ... Commit 01e7da6ba5 ("RDMA/cxgb4: Make sure flush CQ entries are collected on connection close") introduced a potential problem where a CQ's comp_handler can get called simultaneously from different places in the iw_cxgb4 driver. This does not comply with Documentation/infiniband/core_locking.txt, which states that at a given point of time, there should be only one callback per CQ should be active. This problem was reported by Parav Pandit <Parav.Pandit@Emulex.Com>. Based on discussion between Parav Pandit and Steve Wise, this patch fixes the above problem by serializing the calls to a CQ's comp_handler using a spin_lock. Reported-by: Parav Pandit <Parav.Pandit@Emulex.Com> Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <roland@purestorage.com>		2011-10-31 11:34:53 -07:00
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core	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband	2011-07-22 14:50:12 -07:00
hw	RDMA/cxgb4: Serialize calls to CQ's comp_handler	2011-10-31 11:34:53 -07:00
ulp	Merge branches 'ipoib' and 'iser' into for-next	2011-08-17 10:57:43 -07:00
Kconfig	RDMA: Add netlink infrastructure	2011-05-20 11:46:11 -07:00
Makefile	IB/qib: Add new qib driver for QLogic PCIe InfiniBand adapters	2010-05-23 21:44:54 -07:00