Device removal is now adequately supported. Pinning the underlying device driver to prevent removal while an NFS mount is active is no longer necessary. Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx> --- net/sunrpc/xprtrdma/verbs.c | 33 +++++++-------------------------- 1 file changed, 7 insertions(+), 26 deletions(-) diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index b69daa3..d7c1600 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -53,7 +53,7 @@ #include <linux/sunrpc/addr.h> #include <linux/sunrpc/svc_rdma.h> #include <asm/bitops.h> -#include <linux/module.h> /* try_module_get()/module_put() */ + #include <rdma/ib_cm.h> #include "xprt_rdma.h" @@ -344,14 +344,6 @@ return 0; } -static void rpcrdma_destroy_id(struct rdma_cm_id *id) -{ - if (id) { - module_put(id->device->owner); - rdma_destroy_id(id); - } -} - static struct rdma_cm_id * rpcrdma_create_id(struct rpcrdma_xprt *xprt, struct rpcrdma_ia *ia, struct sockaddr *addr) @@ -386,16 +378,6 @@ static void rpcrdma_destroy_id(struct rdma_cm_id *id) goto out; } - /* FIXME: - * Until xprtrdma supports DEVICE_REMOVAL, the provider must - * be pinned while there are active NFS/RDMA mounts to prevent - * hangs and crashes at umount time. - */ - if (!ia->ri_async_rc && !try_module_get(id->device->owner)) { - dprintk("RPC: %s: Failed to get device module\n", - __func__); - ia->ri_async_rc = -ENODEV; - } rc = ia->ri_async_rc; if (rc) goto out; @@ -405,21 +387,20 @@ static void rpcrdma_destroy_id(struct rdma_cm_id *id) if (rc) { dprintk("RPC: %s: rdma_resolve_route() failed %i\n", __func__, rc); - goto put; + goto out; } rc = wait_for_completion_interruptible_timeout(&ia->ri_done, wtimeout); if (rc < 0) { dprintk("RPC: %s: wait() exited: %i\n", __func__, rc); - goto put; + goto out; } rc = ia->ri_async_rc; if (rc) - goto put; + goto out; return id; -put: - module_put(id->device->owner); + out: rdma_destroy_id(id); return ERR_PTR(rc); @@ -546,7 +527,7 @@ static void rpcrdma_destroy_id(struct rdma_cm_id *id) if (ia->ri_id != NULL && !IS_ERR(ia->ri_id)) { if (ia->ri_id->qp) rdma_destroy_qp(ia->ri_id); - rpcrdma_destroy_id(ia->ri_id); + rdma_destroy_id(ia->ri_id); } ia->ri_id = NULL; ia->ri_device = NULL; @@ -800,7 +781,7 @@ static void rpcrdma_destroy_id(struct rdma_cm_id *id) rdma_destroy_qp(old); out_destroy: - rpcrdma_destroy_id(old); + rdma_destroy_id(old); out: return rc; } -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html