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NFS: Allow the mount option retrans=0

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We should allow retrans=0 as just meaning that every timeout is a major
timeout, and that there is no increment in the timeout value.

For instance, this means that we would allow TCP users to specify a
flat timeout value of 60s, by specifying "timeo=600,retrans=0" in their
mount option string.

Siged-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust
2016-08-16 10:26:47 -04:00
parent 1c8d477a77
commit a956beda19
3 changed files with 26 additions and 8 deletions
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5
fs/nfs/internal.h
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@@ -58,6 +58,9 @@ struct nfs_clone_mount {
*/
#define NFS_UNSPEC_PORT (-1)
#define NFS_UNSPEC_RETRANS (UINT_MAX)
#define NFS_UNSPEC_TIMEO (UINT_MAX)
/*
* Maximum number of pages that readdir can use for creating
* a vmapped array of pages.
@@ -156,7 +159,7 @@ struct nfs_client *nfs_get_client(const struct nfs_client_initdata *,
int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *, struct nfs_fattr *);
void nfs_server_insert_lists(struct nfs_server *);
void nfs_server_remove_lists(struct nfs_server *);
void nfs_init_timeout_values(struct rpc_timeout *, int, unsigned int, unsigned int);
void nfs_init_timeout_values(struct rpc_timeout *to, int proto, int timeo, int retrans);
int nfs_init_server_rpcclient(struct nfs_server *, const struct rpc_timeout *t,
rpc_authflavor_t);
struct nfs_server *nfs_alloc_server(void);