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path: root/include/rdma/mr_pool.h
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/*
 * Copyright (c) 2016 HGST, a Western Digital Company.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 */
#ifndef _RDMA_MR_POOL_H
#define _RDMA_MR_POOL_H 1

#include <rdma/ib_verbs.h>

struct ib_mr *ib_mr_pool_get(struct ib_qp *qp, struct list_head *list);
void ib_mr_pool_put(struct ib_qp *qp, struct list_head *list, struct ib_mr *mr);

int ib_mr_pool_init(struct ib_qp *qp, struct list_head *list, int nr,
		enum ib_mr_type type, u32 max_num_sg);
void ib_mr_pool_destroy(struct ib_qp *qp, struct list_head *list);

#endif /* _RDMA_MR_POOL_H */
ca944be9cd23dfc752 (patch) treeb9a2afb38a4c2ac8ad31f49ec0d71fe9e5b1994c /net/appletalk/Makefile parent030305d69fc6963c16003f50d7e8d74b02d0a143 (diff)
PCI/MSI: Don't apply affinity if there aren't enough vectors left
Bart reported a problem wіth an out of bounds access in the low-level IRQ affinity code, which we root caused to the qla2xxx driver assigning all its MSI-X vectors to the pre and post vectors, and not having any left for the actually spread IRQs. Fix this issue by not asking for affinity assignment when there are no vectors to assign left. Fixes: 402723ad5c62 ("PCI/MSI: Provide pci_alloc_irq_vectors_affinity()") Link: https://lkml.kernel.org/r/1485359225.3093.3.camel@sandisk.com Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Tested-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'net/appletalk/Makefile')