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nfs: make nfs4_init_uniform_client_string use a dynamically allocated buffer

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Change the uniform client string generator to dynamically allocate the
NFSv4 client name string buffer. With this patch, we can eliminate the
buffers that are embedded within the "args" structs and simply use the
name string that is hanging off the client.

This uniform string case is a little simpler than the nonuniform since
we don't need to deal with RCU, but we do have two different cases,
depending on whether there is a uniquifier or not.

Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Jeff Layton
2015-06-09 19:44:00 -04:00
committed by Trond Myklebust
parent a319268891
commit 873e385116
2 changed files with 77 additions and 41 deletions
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6
include/linux/nfs_xdr.h
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@@ -984,11 +984,8 @@ struct nfs4_readlink_res {
struct nfs4_sequence_res seq_res;
};
#define NFS4_SETCLIENTID_NAMELEN (127)
struct nfs4_setclientid {
const nfs4_verifier * sc_verifier;
unsigned int sc_name_len;
char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
u32 sc_prog;
unsigned int sc_netid_len;
char sc_netid[RPCBIND_MAXNETIDLEN + 1];
@@ -1142,12 +1139,9 @@ struct nfs41_state_protection {
struct nfs4_op_map allow;
};
#define NFS4_EXCHANGE_ID_LEN (127)
struct nfs41_exchange_id_args {
struct nfs_client *client;
nfs4_verifier *verifier;
unsigned int id_len;
char id[NFS4_EXCHANGE_ID_LEN];
u32 flags;
struct nfs41_state_protection state_protect;
};