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| author |   Chuck Lever <chuck.lever@oracle.com> | 2015-12-16 17:22:06 -0500 |
|---|---|---|
| committer |   Anna Schumaker <Anna.Schumaker@Netapp.com> | 2015-12-18 15:34:33 -0500 |
| commit | 9b06688bc3b9f13f8de90f832c455fddec3d4e8a (patch) | |
| tree | 04ef60893cb7168f585e023aba28c064d8a738f7 /net/sunrpc | |
| parent | xprtrdma: checking for NULL instead of IS_ERR() (diff) | |
| download | linux-dev-9b06688bc3b9f13f8de90f832c455fddec3d4e8a.tar.xz linux-dev-9b06688bc3b9f13f8de90f832c455fddec3d4e8a.zip | |
xprtrdma: Fix additional uses of spin_lock_irqsave(rb_lock)
Clean up.
rb_lock critical sections added in rpcrdma_ep_post_extra_recv()
should have first been converted to use normal spin_lock now that
the reply handler is a work queue.
The backchannel set up code should use the appropriate helper
instead of open-coding a rb_recv_bufs list add.
Problem introduced by glib patch re-ordering on my part.
Fixes: f531a5dbc451 ('xprtrdma: Pre-allocate backward rpc_rqst')
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/xprtrdma/backchannel.c | 6 | ||||
| -rw-r--r-- | net/sunrpc/xprtrdma/verbs.c | 7 |
2 files changed, 4 insertions, 9 deletions
diff --git a/net/sunrpc/xprtrdma/backchannel.c b/net/sunrpc/xprtrdma/backchannel.c index 97554ca68191..40f48c62f9b1 100644 --- a/net/sunrpc/xprtrdma/backchannel.c +++ b/net/sunrpc/xprtrdma/backchannel.c @@ -84,9 +84,7 @@ out_fail: static int rpcrdma_bc_setup_reps(struct rpcrdma_xprt *r_xprt, unsigned int count) { - struct rpcrdma_buffer *buffers = &r_xprt->rx_buf; struct rpcrdma_rep *rep; - unsigned long flags; int rc = 0; while (count--) { @@ -98,9 +96,7 @@ static int rpcrdma_bc_setup_reps(struct rpcrdma_xprt *r_xprt, break; } - spin_lock_irqsave(&buffers->rb_lock, flags); - list_add(&rep->rr_list, &buffers->rb_recv_bufs); - spin_unlock_irqrestore(&buffers->rb_lock, flags); + rpcrdma_recv_buffer_put(rep); } return rc; diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index 2cc101410a76..003630733ef3 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -1338,15 +1338,14 @@ rpcrdma_ep_post_extra_recv(struct rpcrdma_xprt *r_xprt, unsigned int count) struct rpcrdma_ia *ia = &r_xprt->rx_ia; struct rpcrdma_ep *ep = &r_xprt->rx_ep; struct rpcrdma_rep *rep; - unsigned long flags; int rc; while (count--) { - spin_lock_irqsave(&buffers->rb_lock, flags); + spin_lock(&buffers->rb_lock); if (list_empty(&buffers->rb_recv_bufs)) goto out_reqbuf; rep = rpcrdma_buffer_get_rep_locked(buffers); - spin_unlock_irqrestore(&buffers->rb_lock, flags); + spin_unlock(&buffers->rb_lock); rc = rpcrdma_ep_post_recv(ia, ep, rep); if (rc) @@ -1356,7 +1355,7 @@ rpcrdma_ep_post_extra_recv(struct rpcrdma_xprt *r_xprt, unsigned int count) return 0; out_reqbuf: - spin_unlock_irqrestore(&buffers->rb_lock, flags); + spin_unlock(&buffers->rb_lock); pr_warn("%s: no extra receive buffers\n", __func__); return -ENOMEM; |