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NFS: Additional refactoring for fs_context conversion

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Split out from commit "NFS: Add fs_context support."

This patch adds additional refactoring for the conversion of NFS to use
fs_context, namely:

 (*) Merge nfs_mount_info and nfs_clone_mount into nfs_fs_context.
     nfs_clone_mount has had several fields removed, and nfs_mount_info
     has been removed altogether.
 (*) Various functions now take an fs_context as an argument instead
     of nfs_mount_info, nfs_fs_context, etc.

Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Scott Mayhew 2019-12-10 07:31:14 -05:00 • committed by Anna Schumaker
parent f2aedb713c
commit 62a55d088c
13 changed files with 203 additions and 272 deletions
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51
fs/nfs/internal.h
View file

@ -11,7 +11,7 @@
#include <linux/nfs_page.h>
#include <linux/wait_bit.h>
#define NFS_MS_MASK (SB_RDONLY|SB_NOSUID|SB_NODEV|SB_NOEXEC|SB_SYNCHRONOUS)
#define NFS_SB_MASK (SB_RDONLY|SB_NOSUID|SB_NODEV|SB_NOEXEC|SB_SYNCHRONOUS)
extern const struct export_operations nfs_export_ops;
@ -33,17 +33,6 @@ static inline int nfs_attr_use_mounted_on_fileid(struct nfs_fattr *fattr)
return 1;
}
struct nfs_clone_mount {
const struct super_block *sb;
struct dentry *dentry;
char *hostname;
char *mnt_path;
struct sockaddr *addr;
size_t addrlen;
rpc_authflavor_t authflavor;
struct nfs_fattr *fattr;
};
/*
* Note: RFC 1813 doesn't limit the number of auth flavors that
* a server can return, so make something up.
@ -80,15 +69,6 @@ struct nfs_client_initdata {
const struct cred *cred;
};
struct nfs_mount_info {
unsigned int inherited_bsize;
struct nfs_fs_context *ctx;
struct nfs_clone_mount *cloned;
struct nfs_server *server;
struct nfs_fh *mntfh;
struct nfs_subversion *nfs_mod;
};
/*
* In-kernel mount arguments
*/
@ -140,13 +120,17 @@ struct nfs_fs_context {
unsigned short export_path_len;
} nfs_server;
void *lsm_opts;
struct net *net;
struct nfs_fh *mntfh;
struct nfs_server *server;
struct nfs_subversion *nfs_mod;
char buf[32]; /* Parse buffer */
struct nfs_mount_info mount_info;
struct nfs_clone_mount clone_data;
/* Information for a cloned mount. */
struct nfs_clone_mount {
struct super_block *sb;
struct dentry *dentry;
struct nfs_fattr *fattr;
unsigned int inherited_bsize;
} clone_data;
};
static inline struct nfs_fs_context *nfs_fc2context(const struct fs_context *fc)
@ -194,10 +178,9 @@ extern struct nfs_client *nfs4_find_client_ident(struct net *, int);
extern struct nfs_client *
nfs4_find_client_sessionid(struct net *, const struct sockaddr *,
struct nfs4_sessionid *, u32);
extern struct nfs_server *nfs_create_server(struct nfs_mount_info *);
extern struct nfs_server *nfs4_create_server(struct nfs_mount_info *);
extern struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *,
struct nfs_fh *);
extern struct nfs_server *nfs_create_server(struct fs_context *);
extern struct nfs_server *nfs4_create_server(struct fs_context *);
extern struct nfs_server *nfs4_create_referral_server(struct fs_context *);
extern int nfs4_update_server(struct nfs_server *server, const char *hostname,
struct sockaddr *sap, size_t salen,
struct net *net);
@ -444,12 +427,8 @@ int nfs_submount(struct fs_context *, struct nfs_server *);
int nfs_do_submount(struct fs_context *);
/* getroot.c */
extern struct dentry *nfs_get_root(struct super_block *, struct nfs_fh *,
const char *);
extern int nfs_get_root(struct super_block *s, struct fs_context *fc);
#if IS_ENABLED(CONFIG_NFS_V4)
extern struct dentry *nfs4_get_root(struct super_block *, struct nfs_fh *,
const char *);
extern int nfs4_get_rootfh(struct nfs_server *server, struct nfs_fh *mntfh, bool);
#endif