X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;ds=inline;f=include%2Flinux%2Fnfs_fs.h;h=c5d4084773e8bf321ddba31e1370bfe0ae7cce64;hb=refs%2Fremotes%2Fvserver;hp=821c628d0ba7b75d617d372d657b9a325cf19132;hpb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;p=linux-2.6.git diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 821c628d0..c5d408477 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -9,6 +9,8 @@ #ifndef _LINUX_NFS_FS_H #define _LINUX_NFS_FS_H +#include + /* * Enable debugging support for nfs client. * Requires RPC_DEBUG. @@ -21,11 +23,6 @@ #define NFS_MAX_UDP_TIMEOUT (60*HZ) #define NFS_MAX_TCP_TIMEOUT (600*HZ) -/* - * superblock magic number for NFS - */ -#define NFS_SUPER_MAGIC 0x6969 - /* * When flushing a cluster of dirty pages, there can be different * strategies: @@ -36,12 +33,14 @@ #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 #include #include +#include #include #include @@ -59,7 +58,6 @@ #include #include -#include /* * These are the default flags for swap requests @@ -70,6 +68,8 @@ * 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; @@ -146,7 +146,9 @@ struct nfs_inode { */ atomic_t data_updates; - struct nfs_access_entry cache_access; + 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; @@ -156,7 +158,7 @@ struct nfs_inode { * This is the cookie verifier used for NFSv3 readdir * operations */ - __u32 cookieverf[2]; + __be32 cookieverf[2]; /* * This is the list of dirty unwritten pages. @@ -181,9 +183,6 @@ struct nfs_inode { int delegation_state; struct rw_semaphore rwsem; #endif /* CONFIG_NFS_V4*/ -#ifdef CONFIG_NFS_FSCACHE - struct fscache_cookie *fscache; -#endif struct inode vfs_inode; }; @@ -203,6 +202,7 @@ struct nfs_inode { #define NFS_INO_REVALIDATING (0) /* revalidating attrs */ #define NFS_INO_ADVISE_RDPLUS (1) /* advise readdirplus */ #define NFS_INO_STALE (2) /* possible stale inode */ +#define NFS_INO_ACL_LRU_SET (3) /* Inode is on the LRU list */ static inline struct nfs_inode *NFS_I(struct inode *inode) { @@ -214,7 +214,6 @@ static inline struct nfs_inode *NFS_I(struct inode *inode) #define NFS_SERVER(inode) (NFS_SB(inode->i_sb)) #define NFS_CLIENT(inode) (NFS_SERVER(inode)->client) #define NFS_PROTO(inode) (NFS_SERVER(inode)->nfs_client->rpc_ops) -#define NFS_ADDR(inode) (RPC_PEERADDR(NFS_CLIENT(inode))) #define NFS_COOKIEVERF(inode) (NFS_I(inode)->cookieverf) #define NFS_READTIME(inode) (NFS_I(inode)->read_cache_jiffies) #define NFS_CHANGE_ATTR(inode) (NFS_I(inode)->change_attr) @@ -292,6 +291,7 @@ static inline int nfs_verify_change_attribute(struct inode *inode, unsigned long * 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 struct inode *nfs_fhget(struct super_block *, struct nfs_fh *, struct nfs_fattr *); @@ -301,12 +301,14 @@ extern int nfs_getattr(struct vfsmount *, struct dentry *, struct kstat *); extern int nfs_permission(struct inode *, int, struct nameidata *); extern int nfs_access_get_cached(struct inode *, struct rpc_cred *, struct nfs_access_entry *); extern void nfs_access_add_cache(struct inode *, struct nfs_access_entry *); +extern void nfs_access_zap_cache(struct inode *inode); 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 void nfs_begin_attr_update(struct inode *); @@ -316,13 +318,9 @@ extern void nfs_end_data_update(struct inode *); 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, int mode); -extern struct vfsmount *nfs_do_submount(const struct vfsmount *mnt_parent, - const struct dentry *dentry, - struct nfs_fh *fh, - struct nfs_fattr *fattr); /* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */ -extern u32 root_nfs_parse_addr(char *name); /*__init*/ +extern __be32 root_nfs_parse_addr(char *name); /*__init*/ static inline void nfs_fattr_init(struct nfs_fattr *fattr) { @@ -372,10 +370,12 @@ extern int nfs3_removexattr (struct dentry *, const char *name); */ 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, char __user *buf, - size_t count, loff_t pos); -extern ssize_t nfs_file_direct_write(struct kiocb *iocb, const char __user *buf, - size_t count, loff_t pos); +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 @@ -429,19 +429,21 @@ 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 *); extern void nfs_writedata_release(void *); - -#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4) -struct nfs_write_data *nfs_commit_alloc(void); -void nfs_commit_free(struct nfs_write_data *p); -#endif +extern int nfs_set_page_dirty(struct page *); /* * Try to write back everything synchronously (but check the * return value!) */ -extern int nfs_sync_inode_wait(struct inode *, unsigned long, unsigned int, int); +extern long nfs_sync_mapping_wait(struct address_space *, struct writeback_control *, int); +extern int nfs_sync_mapping_range(struct address_space *, loff_t, loff_t, int); +extern int nfs_wb_all(struct inode *inode); +extern int nfs_wb_page(struct inode *inode, struct page* page); +extern int nfs_wb_page_priority(struct inode *inode, struct page* page, int how); #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4) extern int nfs_commit_inode(struct inode *, int); +extern struct nfs_write_data *nfs_commit_alloc(void); +extern void nfs_commit_free(struct nfs_write_data *wdata); extern void nfs_commit_release(void *wdata); #else static inline int @@ -457,28 +459,6 @@ nfs_have_writebacks(struct inode *inode) return NFS_I(inode)->npages != 0; } -static inline int -nfs_wb_all(struct inode *inode) -{ - int error = nfs_sync_inode_wait(inode, 0, 0, 0); - return (error < 0) ? error : 0; -} - -/* - * Write back all requests on one page - we do this before reading it. - */ -static inline int nfs_wb_page_priority(struct inode *inode, struct page* page, int how) -{ - int error = nfs_sync_inode_wait(inode, page->index, 1, - how | FLUSH_STABLE); - return (error < 0) ? error : 0; -} - -static inline int nfs_wb_page(struct inode *inode, struct page* page) -{ - return nfs_wb_page_priority(inode, page, 0); -} - /* * Allocate nfs_write_data structures */ @@ -541,6 +521,15 @@ nfs_size_to_loff_t(__u64 size) 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); @@ -575,7 +564,6 @@ extern void * nfs_root_data(void); #define NFSDBG_ROOT 0x0080 #define NFSDBG_CALLBACK 0x0100 #define NFSDBG_CLIENT 0x0200 -#define NFSDBG_FSCACHE 0x0400 #define NFSDBG_ALL 0xFFFF #ifdef __KERNEL__