diff options
| author |   Bart Van Assche <bart.vanassche@sandisk.com> | 2015-12-31 09:56:43 +0100 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2016-01-19 15:26:55 -0500 |
| commit | 19f57298f03825e36aefc866d8472b43780538d4 (patch) | |
| tree | 8743da790c03f0b806a3b700a333b44099ac376e /drivers | |
| parent | irq_poll: Fix irq_poll_sched() (diff) | |
| download | linux-dev-19f57298f03825e36aefc866d8472b43780538d4.tar.xz linux-dev-19f57298f03825e36aefc866d8472b43780538d4.zip | |
IB/srpt: Fix the RDMA completion handlers
Avoid that the following kernel crash is triggered when processing
an RDMA completion:
BUG: unable to handle kernel paging request at 0000000100000198
IP: [<ffffffff810a4ea2>] __lock_acquire+0xa2/0x560
Call Trace:
[<ffffffff810a53c2>] lock_acquire+0x62/0x80
[<ffffffff8151bd33>] _raw_spin_lock_irqsave+0x43/0x60
[<ffffffffa04fd437>] srpt_rdma_read_done+0x57/0x120 [ib_srpt]
[<ffffffffa0144dd3>] __ib_process_cq+0x43/0xc0 [ib_core]
[<ffffffffa0145115>] ib_cq_poll_work+0x25/0x70 [ib_core]
[<ffffffff8107184d>] process_one_work+0x1bd/0x460
[<ffffffff81073148>] worker_thread+0x118/0x420
[<ffffffff81078454>] kthread+0xe4/0x100
[<ffffffff8151cbbf>] ret_from_fork+0x3f/0x70
Fixes: commit 59fae4deaad3 ("IB/srpt: chain RDMA READ/WRITE requests").
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/ulp/srpt/ib_srpt.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index 1d78de1f5e83..2b5e0023dabf 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -1396,7 +1396,7 @@ static void srpt_rdma_read_done(struct ib_cq *cq, struct ib_wc *wc) { struct srpt_rdma_ch *ch = cq->cq_context; struct srpt_send_ioctx *ioctx = - container_of(wc->wr_cqe, struct srpt_send_ioctx, ioctx.cqe); + container_of(wc->wr_cqe, struct srpt_send_ioctx, rdma_cqe); WARN_ON(ioctx->n_rdma <= 0); atomic_add(ioctx->n_rdma, &ch->sq_wr_avail); @@ -1419,7 +1419,7 @@ static void srpt_rdma_read_done(struct ib_cq *cq, struct ib_wc *wc) static void srpt_rdma_write_done(struct ib_cq *cq, struct ib_wc *wc) { struct srpt_send_ioctx *ioctx = - container_of(wc->wr_cqe, struct srpt_send_ioctx, ioctx.cqe); + container_of(wc->wr_cqe, struct srpt_send_ioctx, rdma_cqe); if (unlikely(wc->status != IB_WC_SUCCESS)) { pr_info("RDMA_WRITE for ioctx 0x%p failed with status %d\n", |