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#ifndef __NET_NS_HASH_H__
#define __NET_NS_HASH_H__

#include <asm/cache.h>

struct net;

static inline u32 net_hash_mix(const struct net *net)
{
#ifdef CONFIG_NET_NS
	/*
	 * shift this right to eliminate bits, that are
	 * always zeroed
	 */

	return (u32)(((unsigned long)net) >> L1_CACHE_SHIFT);
#else
	return 0;
#endif
}
#endif
class='right'>2017-01-09 16:00:44 +0530 committerJ. Bruce Fields <bfields@redhat.com>2017-01-12 16:14:47 -0500 commitce1ca7d2d140a1f4aaffd297ac487f246963dd2f (patch) tree5aeab5e0cb6ef404c894a18251588278b9432a2c /include/xen/interface/hvm parent546125d1614264d26080817d0c8cddb9b25081fa (diff)
svcrdma: avoid duplicate dma unmapping during error recovery
In rdma_read_chunk_frmr() when ib_post_send() fails, the error code path invokes ib_dma_unmap_sg() to unmap the sg list. It then invokes svc_rdma_put_frmr() which in turn tries to unmap the same sg list through ib_dma_unmap_sg() again. This second unmap is invalid and could lead to problems when the iova being unmapped is subsequently reused. Remove the call to unmap in rdma_read_chunk_frmr() and let svc_rdma_put_frmr() handle it. Fixes: 412a15c0fe53 ("svcrdma: Port to new memory registration API") Cc: stable@vger.kernel.org Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'include/xen/interface/hvm')