diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/nfs_fs.h')
| -rw-r--r-- | ANDROID_3.4.5/include/linux/nfs_fs.h | 671 |
1 files changed, 0 insertions, 671 deletions
diff --git a/ANDROID_3.4.5/include/linux/nfs_fs.h b/ANDROID_3.4.5/include/linux/nfs_fs.h deleted file mode 100644 index 52a1bdb4..00000000 --- a/ANDROID_3.4.5/include/linux/nfs_fs.h +++ /dev/null @@ -1,671 +0,0 @@ -/* - * linux/include/linux/nfs_fs.h - * - * Copyright (C) 1992 Rick Sladkey - * - * OS-specific nfs filesystem definitions and declarations - */ - -#ifndef _LINUX_NFS_FS_H -#define _LINUX_NFS_FS_H - -#include <linux/magic.h> - -/* Default timeout values */ -#define NFS_DEF_UDP_TIMEO (11) -#define NFS_DEF_UDP_RETRANS (3) -#define NFS_DEF_TCP_TIMEO (600) -#define NFS_DEF_TCP_RETRANS (2) - -#define NFS_MAX_UDP_TIMEOUT (60*HZ) -#define NFS_MAX_TCP_TIMEOUT (600*HZ) - -#define NFS_DEF_ACREGMIN (3) -#define NFS_DEF_ACREGMAX (60) -#define NFS_DEF_ACDIRMIN (30) -#define NFS_DEF_ACDIRMAX (60) - -/* - * When flushing a cluster of dirty pages, there can be different - * strategies: - */ -#define FLUSH_SYNC 1 /* file being synced, or contention */ -#define FLUSH_STABLE 4 /* commit to stable storage */ -#define FLUSH_LOWPRI 8 /* low priority background flush */ -#define FLUSH_HIGHPRI 16 /* high priority memory reclaim flush */ -#define FLUSH_COND_STABLE 32 /* conditional stable write - only stable - * if everything fits in one RPC */ - -#ifdef __KERNEL__ - -/* - * Enable dprintk() debugging support for nfs client. - */ -#ifdef CONFIG_NFS_DEBUG -# define NFS_DEBUG -#endif - -#include <linux/in.h> -#include <linux/mm.h> -#include <linux/pagemap.h> -#include <linux/rbtree.h> -#include <linux/rwsem.h> -#include <linux/wait.h> - -#include <linux/sunrpc/debug.h> -#include <linux/sunrpc/auth.h> -#include <linux/sunrpc/clnt.h> - -#include <linux/nfs.h> -#include <linux/nfs2.h> -#include <linux/nfs3.h> -#include <linux/nfs4.h> -#include <linux/nfs_xdr.h> -#include <linux/nfs_fs_sb.h> - -#include <linux/mempool.h> - -/* - * These are the default flags for swap requests - */ -#define NFS_RPC_SWAPFLAGS (RPC_TASK_SWAPPER|RPC_TASK_ROOTCREDS) - -/* - * NFSv3/v4 Access mode cache entry - */ -struct nfs_access_entry { - struct rb_node rb_node; - struct list_head lru; - unsigned long jiffies; - struct rpc_cred * cred; - int mask; -}; - -struct nfs_lock_context { - atomic_t count; - struct list_head list; - struct nfs_open_context *open_context; - fl_owner_t lockowner; - pid_t pid; -}; - -struct nfs4_state; -struct nfs_open_context { - struct nfs_lock_context lock_context; - struct dentry *dentry; - struct rpc_cred *cred; - struct nfs4_state *state; - fmode_t mode; - - unsigned long flags; -#define NFS_CONTEXT_ERROR_WRITE (0) - int error; - - struct list_head list; -}; - -struct nfs_open_dir_context { - struct rpc_cred *cred; - unsigned long attr_gencount; - __u64 dir_cookie; - __u64 dup_cookie; - signed char duped; -}; - -/* - * NFSv4 delegation - */ -struct nfs_delegation; - -struct posix_acl; - -/* - * nfs fs inode data in memory - */ -struct nfs_inode { - /* - * The 64bit 'inode number' - */ - __u64 fileid; - - /* - * NFS file handle - */ - struct nfs_fh fh; - - /* - * Various flags - */ - unsigned long flags; /* atomic bit ops */ - unsigned long cache_validity; /* bit mask */ - - /* - * read_cache_jiffies is when we started read-caching this inode. - * attrtimeo is for how long the cached information is assumed - * to be valid. A successful attribute revalidation doubles - * attrtimeo (up to acregmax/acdirmax), a failure resets it to - * acregmin/acdirmin. - * - * We need to revalidate the cached attrs for this inode if - * - * jiffies - read_cache_jiffies >= attrtimeo - * - * Please note the comparison is greater than or equal - * so that zero timeout values can be specified. - */ - unsigned long read_cache_jiffies; - unsigned long attrtimeo; - unsigned long attrtimeo_timestamp; - - unsigned long attr_gencount; - /* "Generation counter" for the attribute cache. This is - * bumped whenever we update the metadata on the - * server. - */ - unsigned long cache_change_attribute; - - struct rb_root access_cache; - struct list_head access_cache_entry_lru; - struct list_head access_cache_inode_lru; -#ifdef CONFIG_NFS_V3_ACL - struct posix_acl *acl_access; - struct posix_acl *acl_default; -#endif - - /* - * This is the cookie verifier used for NFSv3 readdir - * operations - */ - __be32 cookieverf[2]; - - unsigned long npages; - unsigned long ncommit; - struct list_head commit_list; - - /* Open contexts for shared mmap writes */ - struct list_head open_files; - - /* Number of in-flight sillydelete RPC calls */ - atomic_t silly_count; - /* List of deferred sillydelete requests */ - struct hlist_head silly_list; - wait_queue_head_t waitqueue; - -#ifdef CONFIG_NFS_V4 - struct nfs4_cached_acl *nfs4_acl; - /* NFSv4 state */ - struct list_head open_states; - struct nfs_delegation __rcu *delegation; - fmode_t delegation_state; - struct rw_semaphore rwsem; - - /* pNFS layout information */ - struct pnfs_layout_hdr *layout; - atomic_t commits_outstanding; -#endif /* CONFIG_NFS_V4*/ -#ifdef CONFIG_NFS_FSCACHE - struct fscache_cookie *fscache; -#endif - struct inode vfs_inode; -}; - -/* - * Cache validity bit flags - */ -#define NFS_INO_INVALID_ATTR 0x0001 /* cached attrs are invalid */ -#define NFS_INO_INVALID_DATA 0x0002 /* cached data is invalid */ -#define NFS_INO_INVALID_ATIME 0x0004 /* cached atime is invalid */ -#define NFS_INO_INVALID_ACCESS 0x0008 /* cached access cred invalid */ -#define NFS_INO_INVALID_ACL 0x0010 /* cached acls are invalid */ -#define NFS_INO_REVAL_PAGECACHE 0x0020 /* must revalidate pagecache */ -#define NFS_INO_REVAL_FORCED 0x0040 /* force revalidation ignoring a delegation */ - -/* - * Bit offsets in flags field - */ -#define NFS_INO_ADVISE_RDPLUS (0) /* advise readdirplus */ -#define NFS_INO_STALE (1) /* possible stale inode */ -#define NFS_INO_ACL_LRU_SET (2) /* Inode is on the LRU list */ -#define NFS_INO_FLUSHING (4) /* inode is flushing out data */ -#define NFS_INO_FSCACHE (5) /* inode can be cached by FS-Cache */ -#define NFS_INO_FSCACHE_LOCK (6) /* FS-Cache cookie management lock */ -#define NFS_INO_COMMIT (7) /* inode is committing unstable writes */ -#define NFS_INO_PNFS_COMMIT (8) /* use pnfs code for commit */ -#define NFS_INO_LAYOUTCOMMIT (9) /* layoutcommit required */ -#define NFS_INO_LAYOUTCOMMITTING (10) /* layoutcommit inflight */ - -static inline struct nfs_inode *NFS_I(const struct inode *inode) -{ - return container_of(inode, struct nfs_inode, vfs_inode); -} - -static inline struct nfs_server *NFS_SB(const struct super_block *s) -{ - return (struct nfs_server *)(s->s_fs_info); -} - -static inline struct nfs_fh *NFS_FH(const struct inode *inode) -{ - return &NFS_I(inode)->fh; -} - -static inline struct nfs_server *NFS_SERVER(const struct inode *inode) -{ - return NFS_SB(inode->i_sb); -} - -static inline struct rpc_clnt *NFS_CLIENT(const struct inode *inode) -{ - return NFS_SERVER(inode)->client; -} - -static inline const struct nfs_rpc_ops *NFS_PROTO(const struct inode *inode) -{ - return NFS_SERVER(inode)->nfs_client->rpc_ops; -} - -static inline __be32 *NFS_COOKIEVERF(const struct inode *inode) -{ - return NFS_I(inode)->cookieverf; -} - -static inline unsigned NFS_MINATTRTIMEO(const struct inode *inode) -{ - struct nfs_server *nfss = NFS_SERVER(inode); - return S_ISDIR(inode->i_mode) ? nfss->acdirmin : nfss->acregmin; -} - -static inline unsigned NFS_MAXATTRTIMEO(const struct inode *inode) -{ - struct nfs_server *nfss = NFS_SERVER(inode); - return S_ISDIR(inode->i_mode) ? nfss->acdirmax : nfss->acregmax; -} - -static inline int NFS_STALE(const struct inode *inode) -{ - return test_bit(NFS_INO_STALE, &NFS_I(inode)->flags); -} - -static inline int NFS_FSCACHE(const struct inode *inode) -{ - return test_bit(NFS_INO_FSCACHE, &NFS_I(inode)->flags); -} - -static inline __u64 NFS_FILEID(const struct inode *inode) -{ - return NFS_I(inode)->fileid; -} - -static inline void set_nfs_fileid(struct inode *inode, __u64 fileid) -{ - NFS_I(inode)->fileid = fileid; -} - -static inline void nfs_mark_for_revalidate(struct inode *inode) -{ - struct nfs_inode *nfsi = NFS_I(inode); - - spin_lock(&inode->i_lock); - nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS; - if (S_ISDIR(inode->i_mode)) - nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_DATA; - spin_unlock(&inode->i_lock); -} - -static inline int nfs_server_capable(struct inode *inode, int cap) -{ - return NFS_SERVER(inode)->caps & cap; -} - -static inline int NFS_USE_READDIRPLUS(struct inode *inode) -{ - return test_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(inode)->flags); -} - -static inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf) -{ - dentry->d_time = verf; -} - -/** - * nfs_save_change_attribute - Returns the inode attribute change cookie - * @dir - pointer to parent directory inode - * The "change attribute" is updated every time we finish an operation - * that will result in a metadata change on the server. - */ -static inline unsigned long nfs_save_change_attribute(struct inode *dir) -{ - return NFS_I(dir)->cache_change_attribute; -} - -/** - * nfs_verify_change_attribute - Detects NFS remote directory changes - * @dir - pointer to parent directory inode - * @chattr - previously saved change attribute - * Return "false" if the verifiers doesn't match the change attribute. - * This would usually indicate that the directory contents have changed on - * the server, and that any dentries need revalidating. - */ -static inline int nfs_verify_change_attribute(struct inode *dir, unsigned long chattr) -{ - return chattr == NFS_I(dir)->cache_change_attribute; -} - -/* - * linux/fs/nfs/inode.c - */ -extern int nfs_sync_mapping(struct address_space *mapping); -extern void nfs_zap_mapping(struct inode *inode, struct address_space *mapping); -extern void nfs_zap_caches(struct inode *); -extern void nfs_invalidate_atime(struct inode *); -extern struct inode *nfs_fhget(struct super_block *, struct nfs_fh *, - struct nfs_fattr *); -extern int nfs_refresh_inode(struct inode *, struct nfs_fattr *); -extern int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr); -extern int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fattr); -extern int nfs_getattr(struct vfsmount *, struct dentry *, struct kstat *); -extern int nfs_permission(struct inode *, int); -extern int nfs_open(struct inode *, struct file *); -extern int nfs_release(struct inode *, struct file *); -extern int nfs_attribute_timeout(struct inode *inode); -extern int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode); -extern int __nfs_revalidate_inode(struct nfs_server *, struct inode *); -extern int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping); -extern int nfs_setattr(struct dentry *, struct iattr *); -extern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr); -extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx); -extern void put_nfs_open_context(struct nfs_open_context *ctx); -extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, fmode_t mode); -extern struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, fmode_t f_mode); -extern void nfs_file_set_open_context(struct file *filp, struct nfs_open_context *ctx); -extern struct nfs_lock_context *nfs_get_lock_context(struct nfs_open_context *ctx); -extern void nfs_put_lock_context(struct nfs_lock_context *l_ctx); -extern u64 nfs_compat_user_ino64(u64 fileid); -extern void nfs_fattr_init(struct nfs_fattr *fattr); -extern unsigned long nfs_inc_attr_generation_counter(void); - -extern struct nfs_fattr *nfs_alloc_fattr(void); - -static inline void nfs_free_fattr(const struct nfs_fattr *fattr) -{ - kfree(fattr); -} - -extern struct nfs_fh *nfs_alloc_fhandle(void); - -static inline void nfs_free_fhandle(const struct nfs_fh *fh) -{ - kfree(fh); -} - -#ifdef NFS_DEBUG -extern u32 _nfs_display_fhandle_hash(const struct nfs_fh *fh); -static inline u32 nfs_display_fhandle_hash(const struct nfs_fh *fh) -{ - return _nfs_display_fhandle_hash(fh); -} -extern void _nfs_display_fhandle(const struct nfs_fh *fh, const char *caption); -#define nfs_display_fhandle(fh, caption) \ - do { \ - if (unlikely(nfs_debug & NFSDBG_FACILITY)) \ - _nfs_display_fhandle(fh, caption); \ - } while (0) -#else -static inline u32 nfs_display_fhandle_hash(const struct nfs_fh *fh) -{ - return 0; -} -static inline void nfs_display_fhandle(const struct nfs_fh *fh, - const char *caption) -{ -} -#endif - -/* - * linux/fs/nfs/nfsroot.c - */ -extern int nfs_root_data(char **root_device, char **root_data); /*__init*/ -/* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */ -extern __be32 root_nfs_parse_addr(char *name); /*__init*/ - -/* - * linux/fs/nfs/file.c - */ -extern const struct inode_operations nfs_file_inode_operations; -#ifdef CONFIG_NFS_V3 -extern const struct inode_operations nfs3_file_inode_operations; -#endif /* CONFIG_NFS_V3 */ -extern const struct file_operations nfs_file_operations; -#ifdef CONFIG_NFS_V4 -extern const struct file_operations nfs4_file_operations; -#endif /* CONFIG_NFS_V4 */ -extern const struct address_space_operations nfs_file_aops; -extern const struct address_space_operations nfs_dir_aops; - -static inline struct nfs_open_context *nfs_file_open_context(struct file *filp) -{ - return filp->private_data; -} - -static inline struct rpc_cred *nfs_file_cred(struct file *file) -{ - if (file != NULL) { - struct nfs_open_context *ctx = - nfs_file_open_context(file); - if (ctx) - return ctx->cred; - } - return NULL; -} - -/* - * linux/fs/nfs/xattr.c - */ -#ifdef CONFIG_NFS_V3_ACL -extern ssize_t nfs3_listxattr(struct dentry *, char *, size_t); -extern ssize_t nfs3_getxattr(struct dentry *, const char *, void *, size_t); -extern int nfs3_setxattr(struct dentry *, const char *, - const void *, size_t, int); -extern int nfs3_removexattr (struct dentry *, const char *name); -#else -# define nfs3_listxattr NULL -# define nfs3_getxattr NULL -# define nfs3_setxattr NULL -# define nfs3_removexattr NULL -#endif - -/* - * linux/fs/nfs/direct.c - */ -extern ssize_t nfs_direct_IO(int, struct kiocb *, const struct iovec *, loff_t, - unsigned long); -extern ssize_t nfs_file_direct_read(struct kiocb *iocb, - const struct iovec *iov, unsigned long nr_segs, - loff_t pos); -extern ssize_t nfs_file_direct_write(struct kiocb *iocb, - const struct iovec *iov, unsigned long nr_segs, - loff_t pos); - -/* - * linux/fs/nfs/dir.c - */ -extern const struct inode_operations nfs_dir_inode_operations; -#ifdef CONFIG_NFS_V3 -extern const struct inode_operations nfs3_dir_inode_operations; -#endif /* CONFIG_NFS_V3 */ -extern const struct file_operations nfs_dir_operations; -extern const struct dentry_operations nfs_dentry_operations; - -extern void nfs_force_lookup_revalidate(struct inode *dir); -extern int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fh, struct nfs_fattr *fattr); -extern int nfs_may_open(struct inode *inode, struct rpc_cred *cred, int openflags); -extern void nfs_access_zap_cache(struct inode *inode); - -/* - * linux/fs/nfs/symlink.c - */ -extern const struct inode_operations nfs_symlink_inode_operations; - -/* - * linux/fs/nfs/sysctl.c - */ -#ifdef CONFIG_SYSCTL -extern int nfs_register_sysctl(void); -extern void nfs_unregister_sysctl(void); -#else -#define nfs_register_sysctl() 0 -#define nfs_unregister_sysctl() do { } while(0) -#endif - -/* - * linux/fs/nfs/namespace.c - */ -extern const struct inode_operations nfs_mountpoint_inode_operations; -extern const struct inode_operations nfs_referral_inode_operations; -extern int nfs_mountpoint_expiry_timeout; -extern void nfs_release_automount_timer(void); - -/* - * linux/fs/nfs/unlink.c - */ -extern void nfs_complete_unlink(struct dentry *dentry, struct inode *); -extern void nfs_block_sillyrename(struct dentry *dentry); -extern void nfs_unblock_sillyrename(struct dentry *dentry); -extern int nfs_sillyrename(struct inode *dir, struct dentry *dentry); - -/* - * linux/fs/nfs/write.c - */ -extern int nfs_congestion_kb; -extern int nfs_writepage(struct page *page, struct writeback_control *wbc); -extern int nfs_writepages(struct address_space *, struct writeback_control *); -extern int nfs_flush_incompatible(struct file *file, struct page *page); -extern int nfs_updatepage(struct file *, struct page *, unsigned int, unsigned int); -extern void nfs_writeback_done(struct rpc_task *, struct nfs_write_data *); - -/* - * Try to write back everything synchronously (but check the - * return value!) - */ -extern int nfs_wb_all(struct inode *inode); -extern int nfs_wb_page(struct inode *inode, struct page* page); -extern int nfs_wb_page_cancel(struct inode *inode, struct page* page); -#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4) -extern int nfs_commit_inode(struct inode *, int); -extern struct nfs_write_data *nfs_commitdata_alloc(void); -extern void nfs_commit_free(struct nfs_write_data *wdata); -#else -static inline int -nfs_commit_inode(struct inode *inode, int how) -{ - return 0; -} -#endif - -static inline int -nfs_have_writebacks(struct inode *inode) -{ - return NFS_I(inode)->npages != 0; -} - -/* - * Allocate nfs_write_data structures - */ -extern struct nfs_write_data *nfs_writedata_alloc(unsigned int npages); -extern void nfs_writedata_free(struct nfs_write_data *); - -/* - * linux/fs/nfs/read.c - */ -extern int nfs_readpage(struct file *, struct page *); -extern int nfs_readpages(struct file *, struct address_space *, - struct list_head *, unsigned); -extern int nfs_readpage_result(struct rpc_task *, struct nfs_read_data *); -extern int nfs_readpage_async(struct nfs_open_context *, struct inode *, - struct page *); - -/* - * Allocate nfs_read_data structures - */ -extern struct nfs_read_data *nfs_readdata_alloc(unsigned int npages); -extern void nfs_readdata_free(struct nfs_read_data *); - -/* - * linux/fs/nfs3proc.c - */ -#ifdef CONFIG_NFS_V3_ACL -extern struct posix_acl *nfs3_proc_getacl(struct inode *inode, int type); -extern int nfs3_proc_setacl(struct inode *inode, int type, - struct posix_acl *acl); -extern int nfs3_proc_set_default_acl(struct inode *dir, struct inode *inode, - umode_t mode); -extern void nfs3_forget_cached_acls(struct inode *inode); -#else -static inline int nfs3_proc_set_default_acl(struct inode *dir, - struct inode *inode, - umode_t mode) -{ - return 0; -} - -static inline void nfs3_forget_cached_acls(struct inode *inode) -{ -} -#endif /* CONFIG_NFS_V3_ACL */ - -/* - * inline functions - */ - -static inline loff_t nfs_size_to_loff_t(__u64 size) -{ - if (size > (__u64) OFFSET_MAX - 1) - return OFFSET_MAX - 1; - return (loff_t) size; -} - -static inline ino_t -nfs_fileid_to_ino_t(u64 fileid) -{ - ino_t ino = (ino_t) fileid; - if (sizeof(ino_t) < sizeof(u64)) - ino ^= fileid >> (sizeof(u64)-sizeof(ino_t)) * 8; - return ino; -} - -#define NFS_JUKEBOX_RETRY_TIME (5 * HZ) - -#endif /* __KERNEL__ */ - -/* - * NFS debug flags - */ -#define NFSDBG_VFS 0x0001 -#define NFSDBG_DIRCACHE 0x0002 -#define NFSDBG_LOOKUPCACHE 0x0004 -#define NFSDBG_PAGECACHE 0x0008 -#define NFSDBG_PROC 0x0010 -#define NFSDBG_XDR 0x0020 -#define NFSDBG_FILE 0x0040 -#define NFSDBG_ROOT 0x0080 -#define NFSDBG_CALLBACK 0x0100 -#define NFSDBG_CLIENT 0x0200 -#define NFSDBG_MOUNT 0x0400 -#define NFSDBG_FSCACHE 0x0800 -#define NFSDBG_PNFS 0x1000 -#define NFSDBG_PNFS_LD 0x2000 -#define NFSDBG_ALL 0xFFFF - -#ifdef __KERNEL__ - -# undef ifdebug -# ifdef NFS_DEBUG -# define ifdebug(fac) if (unlikely(nfs_debug & NFSDBG_##fac)) -# define NFS_IFDEBUG(x) x -# else -# define ifdebug(fac) if (0) -# define NFS_IFDEBUG(x) -# endif -#endif /* __KERNEL */ - -#endif |