Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
SUNRPC: new helper function for stopping backchannel server
Create a new backchannel function to stop the backchannel server
and clear the bc_serv in transport protected under the bc_pa_lock.
Signed-off-by: Olga Kornievskaia <okorniev@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
authored by
Olga Kornievskaia
and committed by
Trond Myklebust
6f8b26c9
441244d4
+22
+6
include/linux/sunrpc/bc_xprt.h
+6
include/linux/sunrpc/bc_xprt.h
···
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void xprt_destroy_bc(struct rpc_xprt *xprt, unsigned int max_reqs);
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void xprt_free_bc_rqst(struct rpc_rqst *req);
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unsigned int xprt_bc_max_slots(struct rpc_xprt *xprt);
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void xprt_svc_destroy_nullify_bc(struct rpc_xprt *xprt, struct svc_serv **serv);
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/*
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* Determine if a shared backchannel is in use
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static inline void xprt_free_bc_request(struct rpc_rqst *req)
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{
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}
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static inline void xprt_svc_destroy_nullify_bc(struct rpc_xprt *xprt, struct svc_serv **serv)
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{
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svc_destroy(serv);
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}
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#endif /* CONFIG_SUNRPC_BACKCHANNEL */
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#endif /* _LINUX_SUNRPC_BC_XPRT_H */
+16
net/sunrpc/backchannel_rqst.c
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net/sunrpc/backchannel_rqst.c
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}
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/*
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* Helper function to nullify backchannel server pointer in transport.
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* We need to synchronize setting the pointer to NULL (done so after
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* the backchannel server is shutdown) with the usage of that pointer
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* by the backchannel request processing routines
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* xprt_complete_bc_request() and rpcrdma_bc_receive_call().
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*/
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void xprt_svc_destroy_nullify_bc(struct rpc_xprt *xprt, struct svc_serv **serv)
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{
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spin_lock(&xprt->bc_pa_lock);
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svc_destroy(serv);
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xprt->bc_serv = NULL;
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spin_unlock(&xprt->bc_pa_lock);
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}
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EXPORT_SYMBOL_GPL(xprt_svc_destroy_nullify_bc);
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/*
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* Helper routines that track the number of preallocation elements
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* on the transport.
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*/