From: Chuck Lever <chuck.lever@oracle.com>
To: linux-rdma@vger.kernel.org, linux-nfs@vger.kernel.org
Subject: [PATCH v2 08/24] xprtrdma: Do not leak an MW during a DMA map failure
Date: Tue, 14 Jun 2016 23:16:22 -0400 [thread overview]
Message-ID: <20160615031622.14794.49525.stgit@manet.1015granger.net> (raw)
In-Reply-To: <20160615030626.14794.43805.stgit@manet.1015granger.net>
Based on code audit.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
net/sunrpc/xprtrdma/fmr_ops.c | 1 +
net/sunrpc/xprtrdma/frwr_ops.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/net/sunrpc/xprtrdma/fmr_ops.c b/net/sunrpc/xprtrdma/fmr_ops.c
index 43bfb5d..eb42d7f 100644
--- a/net/sunrpc/xprtrdma/fmr_ops.c
+++ b/net/sunrpc/xprtrdma/fmr_ops.c
@@ -258,6 +258,7 @@ fmr_op_map(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg,
out_dmamap_err:
pr_err("rpcrdma: failed to dma map sg %p sg_nents %u\n",
mw->mw_sg, mw->mw_nents);
+ rpcrdma_defer_mr_recovery(mw);
return -ENOMEM;
out_maperr:
diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c
index cbb2d05..c9ead2b 100644
--- a/net/sunrpc/xprtrdma/frwr_ops.c
+++ b/net/sunrpc/xprtrdma/frwr_ops.c
@@ -438,6 +438,7 @@ frwr_op_map(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg,
out_dmamap_err:
pr_err("rpcrdma: failed to dma map sg %p sg_nents %u\n",
mw->mw_sg, mw->mw_nents);
+ rpcrdma_defer_mr_recovery(mw);
return -ENOMEM;
out_mapmr_err:
next prev parent reply other threads:[~2016-06-15 3:16 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-15 3:15 [PATCH v2 00/24] NFS/RDMA client patches proposed for v4.8 Chuck Lever
2016-06-15 3:15 ` [PATCH v2 01/24] mlx4-ib: Use coherent memory for priv pages Chuck Lever
2016-06-15 4:28 ` Leon Romanovsky
2016-06-15 16:40 ` Chuck Lever
2016-06-16 14:35 ` Leon Romanovsky
2016-06-16 21:10 ` Sagi Grimberg
2016-06-16 21:58 ` Chuck Lever
2016-06-17 9:20 ` Leon Romanovsky
2016-06-17 19:55 ` Chuck Lever
2016-06-18 10:56 ` Leon Romanovsky
2016-06-18 20:08 ` Chuck Lever
2016-06-19 10:04 ` Sagi Grimberg
2016-06-19 19:38 ` Or Gerlitz
2016-06-19 19:43 ` Or Gerlitz
2016-06-19 20:02 ` Chuck Lever
2016-06-20 5:44 ` Leon Romanovsky
2016-06-20 6:34 ` Sagi Grimberg
2016-06-20 7:01 ` Leon Romanovsky
2016-06-20 8:35 ` Sagi Grimberg
2016-06-20 13:41 ` Yishai Hadas
2016-06-21 13:56 ` Sagi Grimberg
2016-06-21 14:35 ` Laurence Oberman
2016-06-19 9:58 ` Sagi Grimberg
2016-06-19 9:48 ` Sagi Grimberg
2016-06-17 9:05 ` Leon Romanovsky
2016-06-19 7:05 ` Sagi Grimberg
2016-06-15 3:15 ` [PATCH v2 02/24] xprtrdma: Remove FMRs from the unmap list after unmapping Chuck Lever
2016-06-15 3:15 ` [PATCH v2 03/24] xprtrdma: Create common scatterlist fields in rpcrdma_mw Chuck Lever
2016-06-15 3:15 ` [PATCH v2 04/24] xprtrdma: Move init and release helpers Chuck Lever
2016-06-15 3:15 ` [PATCH v2 05/24] xprtrdma: Rename fields in rpcrdma_fmr Chuck Lever
2016-06-15 3:16 ` [PATCH v2 06/24] xprtrdma: Use scatterlist for DMA mapping and unmapping under FMR Chuck Lever
2016-06-15 3:16 ` [PATCH v2 07/24] xprtrdma: Refactor MR recovery work queues Chuck Lever
2016-06-15 3:16 ` Chuck Lever [this message]
2016-06-15 3:16 ` [PATCH v2 09/24] xprtrdma: Remove ALLPHYSICAL memory registration mode Chuck Lever
2016-06-15 3:16 ` [PATCH v2 10/24] xprtrdma: Remove rpcrdma_map_one() and friends Chuck Lever
2016-06-15 3:16 ` [PATCH v2 11/24] xprtrdma: Reply buffer exhaustion can be catastrophic Chuck Lever
2016-06-15 3:16 ` [PATCH v2 12/24] xprtrdma: Honor ->send_request API contract Chuck Lever
2016-06-15 3:17 ` [PATCH v2 13/24] xprtrdma: Chunk list encoders must not return zero Chuck Lever
2016-06-15 3:17 ` [PATCH v2 14/24] xprtrdma: Allocate MRs on demand Chuck Lever
2016-06-15 3:17 ` [PATCH v2 15/24] xprtrdma: Release orphaned MRs immediately Chuck Lever
2016-06-15 3:17 ` [PATCH v2 16/24] xprtrdma: Place registered MWs on a per-req list Chuck Lever
2016-06-15 3:17 ` [PATCH v2 17/24] xprtrdma: Chunk list encoders no longer share one rl_segments array Chuck Lever
2016-06-15 3:17 ` [PATCH v2 18/24] xprtrdma: rpcrdma_inline_fixup() overruns the receive page list Chuck Lever
2016-06-15 3:17 ` [PATCH v2 19/24] xprtrdma: Do not update {head, tail}.iov_len in rpcrdma_inline_fixup() Chuck Lever
2016-06-15 3:18 ` [PATCH v2 20/24] xprtrdma: Update only specific fields in private receive buffer Chuck Lever
2016-06-15 3:18 ` [PATCH v2 21/24] xprtrdma: Clean up fixup_copy_count accounting Chuck Lever
2016-06-15 3:18 ` [PATCH v2 22/24] xprtrdma: No direct data placement with krb5i and krb5p Chuck Lever
2016-06-15 3:18 ` [PATCH v2 23/24] svc: Avoid garbage replies when pc_func() returns rpc_drop_reply Chuck Lever
2016-06-15 3:18 ` [PATCH v2 24/24] NFS: Don't drop CB requests with invalid principals Chuck Lever
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