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nfs41: Backchannel callback service helper routines

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Executes the backchannel task on the RPC state machine using
the existing open connection previously established by the client.

Signed-off-by: Ricardo Labiaga <ricardo.labiaga@netapp.com>

nfs41: Add bc_svc.o to sunrpc Makefile.

[nfs41: bc_send() does not need to be exported outside RPC module]
[nfs41: xprt_free_bc_request() need not be exported outside RPC module]
Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[Update copyright]
Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
This commit is contained in:
Ricardo Labiaga
2009-04-01 09:23:04 -04:00
committed by Benny Halevy
parent 55ae1aabfb
commit 0d90ba1cd4
4 changed files with 88 additions and 1 deletions
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3
include/linux/sunrpc/bc_xprt.h
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@@ -29,12 +29,15 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <linux/sunrpc/svcsock.h>
#include <linux/sunrpc/xprt.h>
#include <linux/sunrpc/sched.h>
#ifdef CONFIG_NFS_V4_1
struct rpc_rqst *xprt_alloc_bc_request(struct rpc_xprt *xprt);
void xprt_free_bc_request(struct rpc_rqst *req);
int xprt_setup_backchannel(struct rpc_xprt *, unsigned int min_reqs);
void xprt_destroy_backchannel(struct rpc_xprt *, int max_reqs);
void bc_release_request(struct rpc_task *);
int bc_send(struct rpc_rqst *req);
#else /* CONFIG_NFS_V4_1 */
static inline int xprt_setup_backchannel(struct rpc_xprt *xprt,
unsigned int min_reqs)