litmus-rt.git - The LITMUS^RT kernel.

diff options

author	Rafael J. Wysocki <rjw@sisk.pl>	2010-11-24 18:05:17 -0500
committer	Len Brown <len.brown@intel.com>	2011-01-12 04:48:43 -0500
commit	32a00d274e877eab3ea7ab196b75c9be5170d25e (patch)
tree	0b7a515e8b2328e8cf8b22794cdf81ab19838b5d /net/tipc/config.c
parent	3c0eee3fe6a3a1c745379547c7e7c904aa64f6d5 (diff)

ACPI / PM: Prevent acpi_power_get_inferred_state() from making changes

acpi_power_get_inferred_state() should not update device->power.state behind the back of its caller, so make it return the state via a pointer instead. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>

Diffstat (limited to 'net/tipc/config.c')

0 files changed, 0 insertions, 0 deletions

/* * 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_NOCOMMIT 32 /* Don't send the NFSv3/v4 COMMIT */ #define FLUSH_INVALIDATE 64 /* Invalidate the page cache */ #define FLUSH_NOWRITEPAGE 128 /* Don't call writepage() */ #ifdef __KERNEL__ #include <linux/in.h> #include <linux/kref.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 nfs4_state; struct nfs_open_context { atomic_t count; struct path path; struct rpc_cred *cred; struct nfs4_state *state; fl_owner_t lockowner; fmode_t mode; unsigned long flags; #define NFS_CONTEXT_ERROR_WRITE (0) int error; struct list_head list; __u64 dir_cookie; }; /* * 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; __u64 change_attr; /* v4 only */ 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]; /* * This is the list of dirty unwritten pages. */ struct radix_tree_root nfs_page_tree; unsigned long npages; /* 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 *delegation; fmode_t delegation_state; struct rw_semaphore rwsem; #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_MOUNTPOINT (3) /* inode is remote mountpoint */ #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 */ 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_revalidate_mapping_nolock(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 u64 nfs_compat_user_ino64(u64 fileid); extern void nfs_fattr_init(struct nfs_fattr *fattr); /* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */ extern __be32 root_nfs_parse_addr(char *name); /*__init*/ extern unsigned long nfs_inc_attr_generation_counter(void); /* * 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; extern const struct address_space_operations nfs_file_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 int nfs_async_unlink(struct inode *dir, struct dentry *dentry); 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); /* * 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 int nfs_writeback_done(struct rpc_task *, struct nfs_write_data *); /* * Try to write back everything synchronously (but check the * return value!) */ extern long nfs_sync_mapping_wait(struct address_space *, struct writeback_control *, int); extern int nfs_wb_all(struct inode *inode); extern int nfs_wb_nocommit(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, mode_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, mode_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; } /* NFS root */ extern void * nfs_root_data(void); #define nfs_wait_event(clnt, wq, condition) \ ({ \ int __retval = wait_event_killable(wq, condition); \ __retval; \ }) #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_ALL 0xFFFF #ifdef __KERNEL__ /* * Enable debugging support for nfs client. * Requires RPC_DEBUG. */ #ifdef RPC_DEBUG # define NFS_DEBUG #endif # undef ifdebug # ifdef NFS_DEBUG # define ifdebug(fac) if (unlikely(nfs_debug & NFSDBG_##fac)) # else # define ifdebug(fac) if (0) # endif #endif /* __KERNEL */ #endif


context:
space:
mode: