*/
#include <linux/mount.h>
+#include <linux/security.h>
+
+#define NFS_MS_MASK (MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS)
+
+struct nfs_string;
+
+/* Maximum number of readahead requests
+ * FIXME: this should really be a sysctl so that users may tune it to suit
+ * their needs. People that do NFS over a slow network, might for
+ * instance want to reduce it to something closer to 1 for improved
+ * interactive response.
+ */
+#define NFS_MAX_READAHEAD (RPC_DEF_SLOT_TABLE - 1)
struct nfs_clone_mount {
const struct super_block *sb;
struct nfs_fattr *fattr;
char *hostname;
char *mnt_path;
- struct sockaddr_in *addr;
+ struct sockaddr *addr;
+ size_t addrlen;
rpc_authflavor_t authflavor;
};
+/*
+ * In-kernel mount arguments
+ */
+struct nfs_parsed_mount_data {
+ int flags;
+ int rsize, wsize;
+ int timeo, retrans;
+ int acregmin, acregmax,
+ acdirmin, acdirmax;
+ int namlen;
+ unsigned int options;
+ unsigned int bsize;
+ unsigned int auth_flavor_len;
+ rpc_authflavor_t auth_flavors[1];
+ char *client_address;
+ char *fscache_uniq;
+
+ struct {
+ struct sockaddr_storage address;
+ size_t addrlen;
+ char *hostname;
+ u32 version;
+ unsigned short port;
+ unsigned short protocol;
+ } mount_server;
+
+ struct {
+ struct sockaddr_storage address;
+ size_t addrlen;
+ char *hostname;
+ char *export_path;
+ unsigned short port;
+ unsigned short protocol;
+ } nfs_server;
+
+ struct security_mnt_opts lsm_opts;
+};
+
+/* mount_clnt.c */
+struct nfs_mount_request {
+ struct sockaddr *sap;
+ size_t salen;
+ char *hostname;
+ char *dirpath;
+ u32 version;
+ unsigned short protocol;
+ struct nfs_fh *fh;
+ int noresvport;
+};
+
+extern int nfs_mount(struct nfs_mount_request *info);
+
/* client.c */
+extern struct rpc_program nfs_program;
+
extern void nfs_put_client(struct nfs_client *);
-extern struct nfs_client *nfs_find_client(const struct sockaddr_in *, int);
-extern struct nfs_client *nfs_get_client(const char *, const struct sockaddr_in *, int);
-extern void nfs_mark_client_ready(struct nfs_client *, int);
-extern int nfs_create_rpc_client(struct nfs_client *, int, unsigned int,
- unsigned int, rpc_authflavor_t);
+extern struct nfs_client *nfs_find_client(const struct sockaddr *, u32);
+extern struct nfs_client *nfs_find_client_next(struct nfs_client *);
+extern struct nfs_server *nfs_create_server(
+ const struct nfs_parsed_mount_data *,
+ struct nfs_fh *);
+extern struct nfs_server *nfs4_create_server(
+ const struct nfs_parsed_mount_data *,
+ struct nfs_fh *);
+extern struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *,
+ struct nfs_fh *);
+extern void nfs_free_server(struct nfs_server *server);
+extern struct nfs_server *nfs_clone_server(struct nfs_server *,
+ struct nfs_fh *,
+ struct nfs_fattr *);
+#ifdef CONFIG_PROC_FS
+extern int __init nfs_fs_proc_init(void);
+extern void nfs_fs_proc_exit(void);
+#else
+static inline int nfs_fs_proc_init(void)
+{
+ return 0;
+}
+static inline void nfs_fs_proc_exit(void)
+{
+}
+#endif
/* nfs4namespace.c */
#ifdef CONFIG_NFS_V4
extern int __init nfs_init_writepagecache(void);
extern void nfs_destroy_writepagecache(void);
-#ifdef CONFIG_NFS_DIRECTIO
extern int __init nfs_init_directcache(void);
extern void nfs_destroy_directcache(void);
-#else
-#define nfs_init_directcache() (0)
-#define nfs_destroy_directcache() do {} while(0)
-#endif
/* nfs2xdr.c */
extern int nfs_stat_to_errno(int);
extern struct rpc_procinfo nfs_procedures[];
-extern u32 * nfs_decode_dirent(u32 *, struct nfs_entry *, int);
+extern __be32 * nfs_decode_dirent(__be32 *, struct nfs_entry *, int);
/* nfs3xdr.c */
extern struct rpc_procinfo nfs3_procedures[];
-extern u32 *nfs3_decode_dirent(u32 *, struct nfs_entry *, int);
+extern __be32 *nfs3_decode_dirent(__be32 *, struct nfs_entry *, int);
/* nfs4xdr.c */
#ifdef CONFIG_NFS_V4
-extern u32 *nfs4_decode_dirent(u32 *p, struct nfs_entry *entry, int plus);
+extern __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus);
#endif
/* nfs4proc.c */
#ifdef CONFIG_NFS_V4
extern struct rpc_procinfo nfs4_procedures[];
-
-extern int nfs4_proc_fs_locations(struct inode *dir, struct dentry *dentry,
- struct nfs4_fs_locations *fs_locations,
- struct page *page);
#endif
+/* proc.c */
+void nfs_close_context(struct nfs_open_context *ctx, int is_sync);
+
/* dir.c */
extern int nfs_access_cache_shrinker(int nr_to_scan, gfp_t gfp_mask);
/* inode.c */
+extern struct workqueue_struct *nfsiod_workqueue;
extern struct inode *nfs_alloc_inode(struct super_block *sb);
extern void nfs_destroy_inode(struct inode *);
extern int nfs_write_inode(struct inode *,int);
#ifdef CONFIG_NFS_V4
extern void nfs4_clear_inode(struct inode *);
#endif
+void nfs_zap_acl_cache(struct inode *inode);
+extern int nfs_wait_bit_killable(void *word);
/* super.c */
-extern struct file_system_type nfs_referral_nfs4_fs_type;
-extern struct file_system_type clone_nfs_fs_type;
+void nfs_parse_ip_address(char *, size_t, struct sockaddr *, size_t *);
+extern struct file_system_type nfs_xdev_fs_type;
#ifdef CONFIG_NFS_V4
-extern struct file_system_type clone_nfs4_fs_type;
+extern struct file_system_type nfs4_xdev_fs_type;
+extern struct file_system_type nfs4_referral_fs_type;
#endif
extern struct rpc_stat nfs_rpcstat;
extern int __init register_nfs_fs(void);
extern void __exit unregister_nfs_fs(void);
+extern void nfs_sb_active(struct super_block *sb);
+extern void nfs_sb_deactive(struct super_block *sb);
/* namespace.c */
-extern char *nfs_path(const char *base, const struct dentry *dentry,
+extern char *nfs_path(const char *base,
+ const struct dentry *droot,
+ const struct dentry *dentry,
char *buffer, ssize_t buflen);
-/*
- * Determine the mount path as a string
- */
+/* getroot.c */
+extern struct dentry *nfs_get_root(struct super_block *, struct nfs_fh *);
#ifdef CONFIG_NFS_V4
-static inline char *
-nfs4_path(const struct dentry *dentry, char *buffer, ssize_t buflen)
-{
- return nfs_path(NFS_SB(dentry->d_sb)->mnt_path, dentry, buffer, buflen);
-}
+extern struct dentry *nfs4_get_root(struct super_block *, struct nfs_fh *);
+
+extern int nfs4_path_walk(struct nfs_server *server,
+ struct nfs_fh *mntfh,
+ const char *path);
#endif
/*
* Determine the device name as a string
*/
static inline char *nfs_devname(const struct vfsmount *mnt_parent,
- const struct dentry *dentry,
- char *buffer, ssize_t buflen)
+ const struct dentry *dentry,
+ char *buffer, ssize_t buflen)
{
- return nfs_path(mnt_parent->mnt_devname, dentry, buffer, buflen);
+ return nfs_path(mnt_parent->mnt_devname, mnt_parent->mnt_root,
+ dentry, buffer, buflen);
}
/*
/*
* Calculate the number of 512byte blocks used.
*/
-static inline unsigned long nfs_calc_block_size(u64 tsize)
+static inline blkcnt_t nfs_calc_block_size(u64 tsize)
{
- loff_t used = (tsize + 511) >> 9;
+ blkcnt_t used = (tsize + 511) >> 9;
return (used > ULONG_MAX) ? ULONG_MAX : used;
}
}
/*
- * Check if the string represents a "valid" IPv4 address
+ * Determine the number of bytes of data the page contains
*/
-static inline int valid_ipaddr4(const char *buf)
+static inline
+unsigned int nfs_page_length(struct page *page)
{
- int rc, count, in[4];
-
- rc = sscanf(buf, "%d.%d.%d.%d", &in[0], &in[1], &in[2], &in[3]);
- if (rc != 4)
- return -EINVAL;
- for (count = 0; count < 4; count++) {
- if (in[count] > 255)
- return -EINVAL;
+ loff_t i_size = i_size_read(page->mapping->host);
+
+ if (i_size > 0) {
+ pgoff_t end_index = (i_size - 1) >> PAGE_CACHE_SHIFT;
+ if (page->index < end_index)
+ return PAGE_CACHE_SIZE;
+ if (page->index == end_index)
+ return ((i_size - 1) & ~PAGE_CACHE_MASK) + 1;
}
return 0;
}
+
+/*
+ * Determine the number of pages in an array of length 'len' and
+ * with a base offset of 'base'
+ */
+static inline
+unsigned int nfs_page_array_len(unsigned int base, size_t len)
+{
+ return ((unsigned long)len + (unsigned long)base +
+ PAGE_SIZE - 1) >> PAGE_SHIFT;
+}
+
+#define IPV6_SCOPE_DELIMITER '%'
+
+/*
+ * Set the port number in an address. Be agnostic about the address
+ * family.
+ */
+static inline void nfs_set_port(struct sockaddr *sap, unsigned short port)
+{
+ struct sockaddr_in *ap = (struct sockaddr_in *)sap;
+ struct sockaddr_in6 *ap6 = (struct sockaddr_in6 *)sap;
+
+ switch (sap->sa_family) {
+ case AF_INET:
+ ap->sin_port = htons(port);
+ break;
+ case AF_INET6:
+ ap6->sin6_port = htons(port);
+ break;
+ }
+}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff