mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-11 21:38:32 +08:00
Cleanup: Factor out some cut-and-paste code.
Factor out some cut-and-paste code in options parsing. Saves about 800 bytes on x86-64. Signed-off-by: Rob Landley <rlandley@parallels.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Rob Landley
Trond Myklebust
parent
c12bacec45
commit
c5cb09b6f8
155
fs/nfs/super.c
155
fs/nfs/super.c
@ -979,6 +979,27 @@ static int nfs_parse_security_flavors(char *value,
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int nfs_get_option_str(substring_t args[], char **option)
|
||||
{
|
||||
kfree(*option);
|
||||
*option = match_strdup(args);
|
||||
return !option;
|
||||
}
|
||||
|
||||
static int nfs_get_option_ul(substring_t args[], unsigned long *option)
|
||||
{
|
||||
int rc;
|
||||
char *string;
|
||||
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
return -ENOMEM;
|
||||
rc = strict_strtoul(string, 10, option);
|
||||
kfree(string);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
/*
|
||||
* Error-check and convert a string of mount options from user space into
|
||||
* a data structure. The whole mount string is processed; bad options are
|
||||
@ -1127,155 +1148,82 @@ static int nfs_parse_mount_options(char *raw,
|
||||
* options that take numeric values
|
||||
*/
|
||||
case Opt_port:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
goto out_nomem;
|
||||
rc = strict_strtoul(string, 10, &option);
|
||||
kfree(string);
|
||||
if (rc != 0 || option > USHRT_MAX)
|
||||
if (nfs_get_option_ul(args, &option) ||
|
||||
option > USHRT_MAX)
|
||||
goto out_invalid_value;
|
||||
mnt->nfs_server.port = option;
|
||||
break;
|
||||
case Opt_rsize:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
goto out_nomem;
|
||||
rc = strict_strtoul(string, 10, &option);
|
||||
kfree(string);
|
||||
if (rc != 0)
|
||||
if (nfs_get_option_ul(args, &option))
|
||||
goto out_invalid_value;
|
||||
mnt->rsize = option;
|
||||
break;
|
||||
case Opt_wsize:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
goto out_nomem;
|
||||
rc = strict_strtoul(string, 10, &option);
|
||||
kfree(string);
|
||||
if (rc != 0)
|
||||
if (nfs_get_option_ul(args, &option))
|
||||
goto out_invalid_value;
|
||||
mnt->wsize = option;
|
||||
break;
|
||||
case Opt_bsize:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
goto out_nomem;
|
||||
rc = strict_strtoul(string, 10, &option);
|
||||
kfree(string);
|
||||
if (rc != 0)
|
||||
if (nfs_get_option_ul(args, &option))
|
||||
goto out_invalid_value;
|
||||
mnt->bsize = option;
|
||||
break;
|
||||
case Opt_timeo:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
goto out_nomem;
|
||||
rc = strict_strtoul(string, 10, &option);
|
||||
kfree(string);
|
||||
if (rc != 0 || option == 0)
|
||||
if (nfs_get_option_ul(args, &option) || option == 0)
|
||||
goto out_invalid_value;
|
||||
mnt->timeo = option;
|
||||
break;
|
||||
case Opt_retrans:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
goto out_nomem;
|
||||
rc = strict_strtoul(string, 10, &option);
|
||||
kfree(string);
|
||||
if (rc != 0 || option == 0)
|
||||
if (nfs_get_option_ul(args, &option) || option == 0)
|
||||
goto out_invalid_value;
|
||||
mnt->retrans = option;
|
||||
break;
|
||||
case Opt_acregmin:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
goto out_nomem;
|
||||
rc = strict_strtoul(string, 10, &option);
|
||||
kfree(string);
|
||||
if (rc != 0)
|
||||
if (nfs_get_option_ul(args, &option))
|
||||
goto out_invalid_value;
|
||||
mnt->acregmin = option;
|
||||
break;
|
||||
case Opt_acregmax:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
goto out_nomem;
|
||||
rc = strict_strtoul(string, 10, &option);
|
||||
kfree(string);
|
||||
if (rc != 0)
|
||||
if (nfs_get_option_ul(args, &option))
|
||||
goto out_invalid_value;
|
||||
mnt->acregmax = option;
|
||||
break;
|
||||
case Opt_acdirmin:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
goto out_nomem;
|
||||
rc = strict_strtoul(string, 10, &option);
|
||||
kfree(string);
|
||||
if (rc != 0)
|
||||
if (nfs_get_option_ul(args, &option))
|
||||
goto out_invalid_value;
|
||||
mnt->acdirmin = option;
|
||||
break;
|
||||
case Opt_acdirmax:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
goto out_nomem;
|
||||
rc = strict_strtoul(string, 10, &option);
|
||||
kfree(string);
|
||||
if (rc != 0)
|
||||
if (nfs_get_option_ul(args, &option))
|
||||
goto out_invalid_value;
|
||||
mnt->acdirmax = option;
|
||||
break;
|
||||
case Opt_actimeo:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
goto out_nomem;
|
||||
rc = strict_strtoul(string, 10, &option);
|
||||
kfree(string);
|
||||
if (rc != 0)
|
||||
if (nfs_get_option_ul(args, &option))
|
||||
goto out_invalid_value;
|
||||
mnt->acregmin = mnt->acregmax =
|
||||
mnt->acdirmin = mnt->acdirmax = option;
|
||||
break;
|
||||
case Opt_namelen:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
goto out_nomem;
|
||||
rc = strict_strtoul(string, 10, &option);
|
||||
kfree(string);
|
||||
if (rc != 0)
|
||||
if (nfs_get_option_ul(args, &option))
|
||||
goto out_invalid_value;
|
||||
mnt->namlen = option;
|
||||
break;
|
||||
case Opt_mountport:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
goto out_nomem;
|
||||
rc = strict_strtoul(string, 10, &option);
|
||||
kfree(string);
|
||||
if (rc != 0 || option > USHRT_MAX)
|
||||
if (nfs_get_option_ul(args, &option) ||
|
||||
option > USHRT_MAX)
|
||||
goto out_invalid_value;
|
||||
mnt->mount_server.port = option;
|
||||
break;
|
||||
case Opt_mountvers:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
goto out_nomem;
|
||||
rc = strict_strtoul(string, 10, &option);
|
||||
kfree(string);
|
||||
if (rc != 0 ||
|
||||
if (nfs_get_option_ul(args, &option) ||
|
||||
option < NFS_MNT_VERSION ||
|
||||
option > NFS_MNT3_VERSION)
|
||||
goto out_invalid_value;
|
||||
mnt->mount_server.version = option;
|
||||
break;
|
||||
case Opt_nfsvers:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
goto out_nomem;
|
||||
rc = strict_strtoul(string, 10, &option);
|
||||
kfree(string);
|
||||
if (rc != 0)
|
||||
if (nfs_get_option_ul(args, &option))
|
||||
goto out_invalid_value;
|
||||
switch (option) {
|
||||
case NFS2_VERSION:
|
||||
@ -1295,12 +1243,7 @@ static int nfs_parse_mount_options(char *raw,
|
||||
}
|
||||
break;
|
||||
case Opt_minorversion:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
goto out_nomem;
|
||||
rc = strict_strtoul(string, 10, &option);
|
||||
kfree(string);
|
||||
if (rc != 0)
|
||||
if (nfs_get_option_ul(args, &option))
|
||||
goto out_invalid_value;
|
||||
if (option > NFS4_MAX_MINOR_VERSION)
|
||||
goto out_invalid_value;
|
||||
@ -1336,21 +1279,18 @@ static int nfs_parse_mount_options(char *raw,
|
||||
case Opt_xprt_udp:
|
||||
mnt->flags &= ~NFS_MOUNT_TCP;
|
||||
mnt->nfs_server.protocol = XPRT_TRANSPORT_UDP;
|
||||
kfree(string);
|
||||
break;
|
||||
case Opt_xprt_tcp6:
|
||||
protofamily = AF_INET6;
|
||||
case Opt_xprt_tcp:
|
||||
mnt->flags |= NFS_MOUNT_TCP;
|
||||
mnt->nfs_server.protocol = XPRT_TRANSPORT_TCP;
|
||||
kfree(string);
|
||||
break;
|
||||
case Opt_xprt_rdma:
|
||||
/* vector side protocols to TCP */
|
||||
mnt->flags |= NFS_MOUNT_TCP;
|
||||
mnt->nfs_server.protocol = XPRT_TRANSPORT_RDMA;
|
||||
xprt_load_transport(string);
|
||||
kfree(string);
|
||||
break;
|
||||
default:
|
||||
dfprintk(MOUNT, "NFS: unrecognized "
|
||||
@ -1358,6 +1298,7 @@ static int nfs_parse_mount_options(char *raw,
|
||||
kfree(string);
|
||||
return 0;
|
||||
}
|
||||
kfree(string);
|
||||
break;
|
||||
case Opt_mountproto:
|
||||
string = match_strdup(args);
|
||||
@ -1400,18 +1341,13 @@ static int nfs_parse_mount_options(char *raw,
|
||||
goto out_invalid_address;
|
||||
break;
|
||||
case Opt_clientaddr:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
if (nfs_get_option_str(args, &mnt->client_address))
|
||||
goto out_nomem;
|
||||
kfree(mnt->client_address);
|
||||
mnt->client_address = string;
|
||||
break;
|
||||
case Opt_mounthost:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
if (nfs_get_option_str(args,
|
||||
&mnt->mount_server.hostname))
|
||||
goto out_nomem;
|
||||
kfree(mnt->mount_server.hostname);
|
||||
mnt->mount_server.hostname = string;
|
||||
break;
|
||||
case Opt_mountaddr:
|
||||
string = match_strdup(args);
|
||||
@ -1451,11 +1387,8 @@ static int nfs_parse_mount_options(char *raw,
|
||||
};
|
||||
break;
|
||||
case Opt_fscache_uniq:
|
||||
string = match_strdup(args);
|
||||
if (string == NULL)
|
||||
if (nfs_get_option_str(args, &mnt->fscache_uniq))
|
||||
goto out_nomem;
|
||||
kfree(mnt->fscache_uniq);
|
||||
mnt->fscache_uniq = string;
|
||||
mnt->options |= NFS_OPTION_FSCACHE;
|
||||
break;
|
||||
case Opt_local_lock:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user