mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
e571cbf1a4
The NFSv4 and NFSv4.1 protocols both allow for the redirection of a client from one server to another in order to support filesystem migration and replication. For full protocol support, we need to add the ability to convert a DNS host name into an IP address that we can feed to the RPC client. We'll reuse the sunrpc cache, now that it has been converted to work with rpc_pipefs. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
28 lines
790 B
C
28 lines
790 B
C
/*
|
|
* Helper routines for the NFS client caches
|
|
*
|
|
* Copyright (c) 2009 Trond Myklebust <Trond.Myklebust@netapp.com>
|
|
*/
|
|
|
|
#include <linux/completion.h>
|
|
#include <linux/sunrpc/cache.h>
|
|
#include <asm/atomic.h>
|
|
|
|
/*
|
|
* Deferred request handling
|
|
*/
|
|
struct nfs_cache_defer_req {
|
|
struct cache_req req;
|
|
struct cache_deferred_req deferred_req;
|
|
struct completion completion;
|
|
atomic_t count;
|
|
};
|
|
|
|
extern int nfs_cache_upcall(struct cache_detail *cd, char *entry_name);
|
|
extern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void);
|
|
extern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq);
|
|
extern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq);
|
|
|
|
extern int nfs_cache_register(struct cache_detail *cd);
|
|
extern void nfs_cache_unregister(struct cache_detail *cd);
|