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authorDavid Howells <dhowells@redhat.com>2019-12-10 07:31:06 -0500
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2020-01-15 10:15:17 -0500
commit5eb005caf5383dd328199f0f2114cd7dad731d3d (patch)
tree45c8ef773bb4135b0dac90583ee541bd97530509 /fs/nfs/super.c
parentNFS: Constify mount argument match tables (diff)
downloadlinux-dev-5eb005caf5383dd328199f0f2114cd7dad731d3d.tar.xz
linux-dev-5eb005caf5383dd328199f0f2114cd7dad731d3d.zip
NFS: Rename struct nfs_parsed_mount_data to struct nfs_fs_context
Rename struct nfs_parsed_mount_data to struct nfs_fs_context and rename pointers to it to "ctx". At some point this will be pointed to by an fs_context struct's fs_private pointer. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/super.c')
-rw-r--r--fs/nfs/super.c194
1 files changed, 98 insertions, 96 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index b07585f62c65..83527515590e 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -726,12 +726,13 @@ bool nfs_auth_info_match(const struct nfs_auth_info *auth_info,
EXPORT_SYMBOL_GPL(nfs_auth_info_match);
/*
- * Ensure that a specified authtype in args->auth_info is supported by
- * the server. Returns 0 and sets args->selected_flavor if it's ok, and
+ * Ensure that a specified authtype in cfg->auth_info is supported by
+ * the server. Returns 0 and sets cfg->selected_flavor if it's ok, and
* -EACCES if not.
*/
-static int nfs_verify_authflavors(struct nfs_parsed_mount_data *args,
- rpc_authflavor_t *server_authlist, unsigned int count)
+static int nfs_verify_authflavors(struct nfs_fs_context *cfg,
+ rpc_authflavor_t *server_authlist,
+ unsigned int count)
{
rpc_authflavor_t flavor = RPC_AUTH_MAXFLAVOR;
bool found_auth_null = false;
@@ -752,7 +753,7 @@ static int nfs_verify_authflavors(struct nfs_parsed_mount_data *args,
for (i = 0; i < count; i++) {
flavor = server_authlist[i];
- if (nfs_auth_info_match(&args->auth_info, flavor))
+ if (nfs_auth_info_match(&cfg->auth_info, flavor))
goto out;
if (flavor == RPC_AUTH_NULL)
@@ -760,7 +761,7 @@ static int nfs_verify_authflavors(struct nfs_parsed_mount_data *args,
}
if (found_auth_null) {
- flavor = args->auth_info.flavors[0];
+ flavor = cfg->auth_info.flavors[0];
goto out;
}
@@ -769,8 +770,8 @@ static int nfs_verify_authflavors(struct nfs_parsed_mount_data *args,
return -EACCES;
out:
- args->selected_flavor = flavor;
- dfprintk(MOUNT, "NFS: using auth flavor %u\n", args->selected_flavor);
+ cfg->selected_flavor = flavor;
+ dfprintk(MOUNT, "NFS: using auth flavor %u\n", cfg->selected_flavor);
return 0;
}
@@ -778,50 +779,50 @@ out:
* Use the remote server's MOUNT service to request the NFS file handle
* corresponding to the provided path.
*/
-static int nfs_request_mount(struct nfs_parsed_mount_data *args,
+static int nfs_request_mount(struct nfs_fs_context *cfg,
struct nfs_fh *root_fh,
rpc_authflavor_t *server_authlist,
unsigned int *server_authlist_len)
{
struct nfs_mount_request request = {
.sap = (struct sockaddr *)
- &args->mount_server.address,
- .dirpath = args->nfs_server.export_path,
- .protocol = args->mount_server.protocol,
+ &cfg->mount_server.address,
+ .dirpath = cfg->nfs_server.export_path,
+ .protocol = cfg->mount_server.protocol,
.fh = root_fh,
- .noresvport = args->flags & NFS_MOUNT_NORESVPORT,
+ .noresvport = cfg->flags & NFS_MOUNT_NORESVPORT,
.auth_flav_len = server_authlist_len,
.auth_flavs = server_authlist,
- .net = args->net,
+ .net = cfg->net,
};
int status;
- if (args->mount_server.version == 0) {
- switch (args->version) {
+ if (cfg->mount_server.version == 0) {
+ switch (cfg->version) {
default:
- args->mount_server.version = NFS_MNT3_VERSION;
+ cfg->mount_server.version = NFS_MNT3_VERSION;
break;
case 2:
- args->mount_server.version = NFS_MNT_VERSION;
+ cfg->mount_server.version = NFS_MNT_VERSION;
}
}
- request.version = args->mount_server.version;
+ request.version = cfg->mount_server.version;
- if (args->mount_server.hostname)
- request.hostname = args->mount_server.hostname;
+ if (cfg->mount_server.hostname)
+ request.hostname = cfg->mount_server.hostname;
else
- request.hostname = args->nfs_server.hostname;
+ request.hostname = cfg->nfs_server.hostname;
/*
* Construct the mount server's address.
*/
- if (args->mount_server.address.ss_family == AF_UNSPEC) {
- memcpy(request.sap, &args->nfs_server.address,
- args->nfs_server.addrlen);
- args->mount_server.addrlen = args->nfs_server.addrlen;
+ if (cfg->mount_server.address.ss_family == AF_UNSPEC) {
+ memcpy(request.sap, &cfg->nfs_server.address,
+ cfg->nfs_server.addrlen);
+ cfg->mount_server.addrlen = cfg->nfs_server.addrlen;
}
- request.salen = args->mount_server.addrlen;
- nfs_set_port(request.sap, &args->mount_server.port, 0);
+ request.salen = cfg->mount_server.addrlen;
+ nfs_set_port(request.sap, &cfg->mount_server.port, 0);
/*
* Now ask the mount server to map our export path
@@ -844,12 +845,12 @@ static struct nfs_server *nfs_try_mount_request(struct nfs_mount_info *mount_inf
bool tried_auth_unix = false;
bool auth_null_in_list = false;
struct nfs_server *server = ERR_PTR(-EACCES);
- struct nfs_parsed_mount_data *args = mount_info->parsed;
+ struct nfs_fs_context *ctx = mount_info->ctx;
rpc_authflavor_t authlist[NFS_MAX_SECFLAVORS];
unsigned int authlist_len = ARRAY_SIZE(authlist);
struct nfs_subversion *nfs_mod = mount_info->nfs_mod;
- status = nfs_request_mount(args, mount_info->mntfh, authlist,
+ status = nfs_request_mount(ctx, mount_info->mntfh, authlist,
&authlist_len);
if (status)
return ERR_PTR(status);
@@ -858,10 +859,10 @@ static struct nfs_server *nfs_try_mount_request(struct nfs_mount_info *mount_inf
* Was a sec= authflavor specified in the options? First, verify
* whether the server supports it, and then just try to use it if so.
*/
- if (args->auth_info.flavor_len > 0) {
- status = nfs_verify_authflavors(args, authlist, authlist_len);
+ if (ctx->auth_info.flavor_len > 0) {
+ status = nfs_verify_authflavors(ctx, authlist, authlist_len);
dfprintk(MOUNT, "NFS: using auth flavor %u\n",
- args->selected_flavor);
+ ctx->selected_flavor);
if (status)
return ERR_PTR(status);
return nfs_mod->rpc_ops->create_server(mount_info);
@@ -890,7 +891,7 @@ static struct nfs_server *nfs_try_mount_request(struct nfs_mount_info *mount_inf
/* Fallthrough */
}
dfprintk(MOUNT, "NFS: attempting to use auth flavor %u\n", flavor);
- args->selected_flavor = flavor;
+ ctx->selected_flavor = flavor;
server = nfs_mod->rpc_ops->create_server(mount_info);
if (!IS_ERR(server))
return server;
@@ -906,7 +907,7 @@ static struct nfs_server *nfs_try_mount_request(struct nfs_mount_info *mount_inf
/* Last chance! Try AUTH_UNIX */
dfprintk(MOUNT, "NFS: attempting to use auth flavor %u\n", RPC_AUTH_UNIX);
- args->selected_flavor = RPC_AUTH_UNIX;
+ ctx->selected_flavor = RPC_AUTH_UNIX;
return nfs_mod->rpc_ops->create_server(mount_info);
}
@@ -916,7 +917,7 @@ struct dentry *nfs_try_mount(int flags, const char *dev_name,
struct nfs_mount_info *mount_info)
{
struct nfs_subversion *nfs_mod = mount_info->nfs_mod;
- if (mount_info->parsed->need_mount)
+ if (mount_info->ctx->need_mount)
mount_info->server = nfs_try_mount_request(mount_info);
else
mount_info->server = nfs_mod->rpc_ops->create_server(mount_info);
@@ -940,24 +941,24 @@ EXPORT_SYMBOL_GPL(nfs_try_mount);
static int
nfs_compare_remount_data(struct nfs_server *nfss,
- struct nfs_parsed_mount_data *data)
+ struct nfs_fs_context *ctx)
{
- if ((data->flags ^ nfss->flags) & NFS_REMOUNT_CMP_FLAGMASK ||
- data->rsize != nfss->rsize ||
- data->wsize != nfss->wsize ||
- data->version != nfss->nfs_client->rpc_ops->version ||
- data->minorversion != nfss->nfs_client->cl_minorversion ||
- data->retrans != nfss->client->cl_timeout->to_retries ||
- !nfs_auth_info_match(&data->auth_info, nfss->client->cl_auth->au_flavor) ||
- data->acregmin != nfss->acregmin / HZ ||
- data->acregmax != nfss->acregmax / HZ ||
- data->acdirmin != nfss->acdirmin / HZ ||
- data->acdirmax != nfss->acdirmax / HZ ||
- data->timeo != (10U * nfss->client->cl_timeout->to_initval / HZ) ||
- (data->options & NFS_OPTION_FSCACHE) != (nfss->options & NFS_OPTION_FSCACHE) ||
- data->nfs_server.port != nfss->port ||
- data->nfs_server.addrlen != nfss->nfs_client->cl_addrlen ||
- !rpc_cmp_addr((struct sockaddr *)&data->nfs_server.address,
+ if ((ctx->flags ^ nfss->flags) & NFS_REMOUNT_CMP_FLAGMASK ||
+ ctx->rsize != nfss->rsize ||
+ ctx->wsize != nfss->wsize ||
+ ctx->version != nfss->nfs_client->rpc_ops->version ||
+ ctx->minorversion != nfss->nfs_client->cl_minorversion ||
+ ctx->retrans != nfss->client->cl_timeout->to_retries ||
+ !nfs_auth_info_match(&ctx->auth_info, nfss->client->cl_auth->au_flavor) ||
+ ctx->acregmin != nfss->acregmin / HZ ||
+ ctx->acregmax != nfss->acregmax / HZ ||
+ ctx->acdirmin != nfss->acdirmin / HZ ||
+ ctx->acdirmax != nfss->acdirmax / HZ ||
+ ctx->timeo != (10U * nfss->client->cl_timeout->to_initval / HZ) ||
+ (ctx->options & NFS_OPTION_FSCACHE) != (nfss->options & NFS_OPTION_FSCACHE) ||
+ ctx->nfs_server.port != nfss->port ||
+ ctx->nfs_server.addrlen != nfss->nfs_client->cl_addrlen ||
+ !rpc_cmp_addr((struct sockaddr *)&ctx->nfs_server.address,
(struct sockaddr *)&nfss->nfs_client->cl_addr))
return -EINVAL;
@@ -969,7 +970,7 @@ nfs_remount(struct super_block *sb, int *flags, char *raw_data)
{
int error;
struct nfs_server *nfss = sb->s_fs_info;
- struct nfs_parsed_mount_data *data;
+ struct nfs_fs_context *ctx;
struct nfs_mount_data *options = (struct nfs_mount_data *)raw_data;
struct nfs4_mount_data *options4 = (struct nfs4_mount_data *)raw_data;
u32 nfsvers = nfss->nfs_client->rpc_ops->version;
@@ -987,32 +988,32 @@ nfs_remount(struct super_block *sb, int *flags, char *raw_data)
options->version <= 6))))
return 0;
- data = nfs_alloc_parsed_mount_data();
- if (data == NULL)
+ ctx = nfs_alloc_parsed_mount_data();
+ if (ctx == NULL)
return -ENOMEM;
/* fill out struct with values from existing mount */
- data->flags = nfss->flags;
- data->rsize = nfss->rsize;
- data->wsize = nfss->wsize;
- data->retrans = nfss->client->cl_timeout->to_retries;
- data->selected_flavor = nfss->client->cl_auth->au_flavor;
- data->acregmin = nfss->acregmin / HZ;
- data->acregmax = nfss->acregmax / HZ;
- data->acdirmin = nfss->acdirmin / HZ;
- data->acdirmax = nfss->acdirmax / HZ;
- data->timeo = 10U * nfss->client->cl_timeout->to_initval / HZ;
- data->nfs_server.port = nfss->port;
- data->nfs_server.addrlen = nfss->nfs_client->cl_addrlen;
- data->version = nfsvers;
- data->minorversion = nfss->nfs_client->cl_minorversion;
- data->net = current->nsproxy->net_ns;
- memcpy(&data->nfs_server.address, &nfss->nfs_client->cl_addr,
- data->nfs_server.addrlen);
+ ctx->flags = nfss->flags;
+ ctx->rsize = nfss->rsize;
+ ctx->wsize = nfss->wsize;
+ ctx->retrans = nfss->client->cl_timeout->to_retries;
+ ctx->selected_flavor = nfss->client->cl_auth->au_flavor;
+ ctx->acregmin = nfss->acregmin / HZ;
+ ctx->acregmax = nfss->acregmax / HZ;
+ ctx->acdirmin = nfss->acdirmin / HZ;
+ ctx->acdirmax = nfss->acdirmax / HZ;
+ ctx->timeo = 10U * nfss->client->cl_timeout->to_initval / HZ;
+ ctx->nfs_server.port = nfss->port;
+ ctx->nfs_server.addrlen = nfss->nfs_client->cl_addrlen;
+ ctx->version = nfsvers;
+ ctx->minorversion = nfss->nfs_client->cl_minorversion;
+ ctx->net = current->nsproxy->net_ns;
+ memcpy(&ctx->nfs_server.address, &nfss->nfs_client->cl_addr,
+ ctx->nfs_server.addrlen);
/* overwrite those values with any that were specified */
error = -EINVAL;
- if (!nfs_parse_mount_options((char *)options, data))
+ if (!nfs_parse_mount_options((char *)options, ctx))
goto out;
/*
@@ -1021,15 +1022,15 @@ nfs_remount(struct super_block *sb, int *flags, char *raw_data)
* will clear SB_SYNCHRONOUS if -o sync wasn't specified in the
* remount options, so we have to explicitly reset it.
*/
- if (data->flags & NFS_MOUNT_NOAC)
+ if (ctx->flags & NFS_MOUNT_NOAC)
*flags |= SB_SYNCHRONOUS;
/* compare new mount options with old ones */
- error = nfs_compare_remount_data(nfss, data);
+ error = nfs_compare_remount_data(nfss, ctx);
if (!error)
- error = security_sb_remount(sb, data->lsm_opts);
+ error = security_sb_remount(sb, ctx->lsm_opts);
out:
- nfs_free_parsed_mount_data(data);
+ nfs_free_parsed_mount_data(ctx);
return error;
}
EXPORT_SYMBOL_GPL(nfs_remount);
@@ -1039,15 +1040,15 @@ EXPORT_SYMBOL_GPL(nfs_remount);
*/
static void nfs_fill_super(struct super_block *sb, struct nfs_mount_info *mount_info)
{
- struct nfs_parsed_mount_data *data = mount_info->parsed;
+ struct nfs_fs_context *ctx = mount_info->ctx;
struct nfs_server *server = NFS_SB(sb);
sb->s_blocksize_bits = 0;
sb->s_blocksize = 0;
sb->s_xattr = server->nfs_client->cl_nfs_mod->xattr;
sb->s_op = server->nfs_client->cl_nfs_mod->sops;
- if (data && data->bsize)
- sb->s_blocksize = nfs_block_size(data->bsize, &sb->s_blocksize_bits);
+ if (ctx && ctx->bsize)
+ sb->s_blocksize = nfs_block_size(ctx->bsize, &sb->s_blocksize_bits);
if (server->nfs_client->rpc_ops->version != 2) {
/* The VFS shouldn't apply the umask to mode bits. We will do
@@ -1208,7 +1209,7 @@ static int nfs_compare_super(struct super_block *sb, void *data)
#ifdef CONFIG_NFS_FSCACHE
static void nfs_get_cache_cookie(struct super_block *sb,
- struct nfs_parsed_mount_data *parsed,
+ struct nfs_fs_context *ctx,
struct nfs_clone_mount *cloned)
{
struct nfs_server *nfss = NFS_SB(sb);
@@ -1218,12 +1219,12 @@ static void nfs_get_cache_cookie(struct super_block *sb,
nfss->fscache_key = NULL;
nfss->fscache = NULL;
- if (parsed) {
- if (!(parsed->options & NFS_OPTION_FSCACHE))
+ if (ctx) {
+ if (!(ctx->options & NFS_OPTION_FSCACHE))
return;
- if (parsed->fscache_uniq) {
- uniq = parsed->fscache_uniq;
- ulen = strlen(parsed->fscache_uniq);
+ if (ctx->fscache_uniq) {
+ uniq = ctx->fscache_uniq;
+ ulen = strlen(ctx->fscache_uniq);
}
} else if (cloned) {
struct nfs_server *mnt_s = NFS_SB(cloned->sb);
@@ -1240,7 +1241,7 @@ static void nfs_get_cache_cookie(struct super_block *sb,
}
#else
static void nfs_get_cache_cookie(struct super_block *sb,
- struct nfs_parsed_mount_data *parsed,
+ struct nfs_fs_context *parsed,
struct nfs_clone_mount *cloned)
{
}
@@ -1312,7 +1313,7 @@ static struct dentry *nfs_fs_mount_common(int flags, const char *dev_name,
s->s_blocksize_bits = bsize;
s->s_blocksize = 1U << bsize;
}
- nfs_get_cache_cookie(s, mount_info->parsed, mount_info->cloned);
+ nfs_get_cache_cookie(s, mount_info->ctx, mount_info->cloned);
if (!(server->flags & NFS_MOUNT_UNSHARED))
s->s_iflags |= SB_I_MULTIROOT;
}
@@ -1333,7 +1334,7 @@ static struct dentry *nfs_fs_mount_common(int flags, const char *dev_name,
error = security_sb_clone_mnt_opts(mount_info->cloned->sb, s, kflags,
&kflags_out);
} else {
- error = security_sb_set_mnt_opts(s, mount_info->parsed->lsm_opts,
+ error = security_sb_set_mnt_opts(s, mount_info->ctx->lsm_opts,
kflags, &kflags_out);
}
if (error)
@@ -1370,21 +1371,22 @@ struct dentry *nfs_fs_mount(struct file_system_type *fs_type,
struct nfs_subversion *nfs_mod;
int error;
- mount_info.parsed = nfs_alloc_parsed_mount_data();
+ mount_info.ctx = nfs_alloc_parsed_mount_data();
mount_info.mntfh = nfs_alloc_fhandle();
- if (mount_info.parsed == NULL || mount_info.mntfh == NULL)
+ if (mount_info.ctx == NULL || mount_info.mntfh == NULL)
goto out;
/* Validate the mount data */
- error = nfs_validate_mount_data(fs_type, raw_data, mount_info.parsed, mount_info.mntfh, dev_name);
+ error = nfs_validate_mount_data(fs_type, raw_data, mount_info.ctx, mount_info.mntfh, dev_name);
if (error == NFS_TEXT_DATA)
- error = nfs_validate_text_mount_data(raw_data, mount_info.parsed, dev_name);
+ error = nfs_validate_text_mount_data(raw_data,
+ mount_info.ctx, dev_name);
if (error < 0) {
mntroot = ERR_PTR(error);
goto out;
}
- nfs_mod = get_nfs_version(mount_info.parsed->version);
+ nfs_mod = get_nfs_version(mount_info.ctx->version);
if (IS_ERR(nfs_mod)) {
mntroot = ERR_CAST(nfs_mod);
goto out;
@@ -1395,7 +1397,7 @@ struct dentry *nfs_fs_mount(struct file_system_type *fs_type,
put_nfs_version(nfs_mod);
out:
- nfs_free_parsed_mount_data(mount_info.parsed);
+ nfs_free_parsed_mount_data(mount_info.ctx);
nfs_free_fhandle(mount_info.mntfh);
return mntroot;
}