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| author | Chuck Lever <chuck.lever@oracle.com> | 2014-07-29 17:24:28 -0400 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2014-07-31 16:22:54 -0400 |
| commit | 3111d72c7ced444b1034f6e365e0e02444c68aa8 (patch) | |
| tree | d96aba9d9a27228ade6dc765f2269141b2f836f0 /net | |
| parent | c93e986a295d537589efd0504f36ca952bd1a5be (diff) | |
| download | linux-stable-3111d72c7ced444b1034f6e365e0e02444c68aa8.tar.gz linux-stable-3111d72c7ced444b1034f6e365e0e02444c68aa8.tar.bz2 linux-stable-3111d72c7ced444b1034f6e365e0e02444c68aa8.zip | |
xprtrdma: Chain together all MWs in same buffer pool
During connection loss recovery, need to visit every MW in a
buffer pool. Any MW that is in use by an RPC will not be on the
rb_mws list.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Tested-by: Shirley Ma <shirley.ma@oracle.com>
Tested-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sunrpc/xprtrdma/verbs.c | 4 | ||||
| -rw-r--r-- | net/sunrpc/xprtrdma/xprt_rdma.h | 4 |
2 files changed, 7 insertions, 1 deletions
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index b670f4d92840..0ad7d10f13a7 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -1074,6 +1074,7 @@ rpcrdma_buffer_create(struct rpcrdma_buffer *buf, struct rpcrdma_ep *ep, p += cdata->padding; INIT_LIST_HEAD(&buf->rb_mws); + INIT_LIST_HEAD(&buf->rb_all); r = (struct rpcrdma_mw *)p; switch (ia->ri_memreg_strategy) { case RPCRDMA_FRMR: @@ -1098,6 +1099,7 @@ rpcrdma_buffer_create(struct rpcrdma_buffer *buf, struct rpcrdma_ep *ep, ib_dereg_mr(r->r.frmr.fr_mr); goto out; } + list_add(&r->mw_all, &buf->rb_all); list_add(&r->mw_list, &buf->rb_mws); ++r; } @@ -1116,6 +1118,7 @@ rpcrdma_buffer_create(struct rpcrdma_buffer *buf, struct rpcrdma_ep *ep, " failed %i\n", __func__, rc); goto out; } + list_add(&r->mw_all, &buf->rb_all); list_add(&r->mw_list, &buf->rb_mws); ++r; } @@ -1225,6 +1228,7 @@ rpcrdma_buffer_destroy(struct rpcrdma_buffer *buf) while (!list_empty(&buf->rb_mws)) { r = list_entry(buf->rb_mws.next, struct rpcrdma_mw, mw_list); + list_del(&r->mw_all); list_del(&r->mw_list); switch (ia->ri_memreg_strategy) { case RPCRDMA_FRMR: diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h index 84c3455a9521..c1d865287b0e 100644 --- a/net/sunrpc/xprtrdma/xprt_rdma.h +++ b/net/sunrpc/xprtrdma/xprt_rdma.h @@ -151,7 +151,7 @@ struct rpcrdma_rep { * An external memory region is any buffer or page that is registered * on the fly (ie, not pre-registered). * - * Each rpcrdma_buffer has a list of these anchored in rb_mws. During + * Each rpcrdma_buffer has a list of free MWs anchored in rb_mws. During * call_allocate, rpcrdma_buffer_get() assigns one to each segment in * an rpcrdma_req. Then rpcrdma_register_external() grabs these to keep * track of registration metadata while each RPC is pending. @@ -175,6 +175,7 @@ struct rpcrdma_mw { struct rpcrdma_frmr frmr; } r; struct list_head mw_list; + struct list_head mw_all; }; /* @@ -246,6 +247,7 @@ struct rpcrdma_buffer { atomic_t rb_credits; /* most recent server credits */ int rb_max_requests;/* client max requests */ struct list_head rb_mws; /* optional memory windows/fmrs/frmrs */ + struct list_head rb_all; int rb_send_index; struct rpcrdma_req **rb_send_bufs; int rb_recv_index; |