#include <linux/nfs3.h>
#include <linux/nfs4.h>
#include <linux/nfs_xdr.h>
-
#include <linux/nfs_fs_sb.h>
-#include <linux/rwsem.h>
#include <linux/mempool.h>
/*
struct nfs4_state;
struct nfs_open_context {
- struct kref kref;
+ atomic_t count;
struct path path;
struct rpc_cred *cred;
struct nfs4_state *state;
fl_owner_t lockowner;
int mode;
+
+ unsigned long flags;
+#define NFS_CONTEXT_ERROR_WRITE (0)
int error;
struct list_head list;
* server.
*/
unsigned long cache_change_attribute;
- /*
- * Counter indicating the number of outstanding requests that
- * will cause a file data update.
- */
- atomic_t data_updates;
struct rb_root access_cache;
struct list_head access_cache_entry_lru;
#define NFS_CLIENT(inode) (NFS_SERVER(inode)->client)
#define NFS_PROTO(inode) (NFS_SERVER(inode)->nfs_client->rpc_ops)
#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)
-#define NFS_ATTRTIMEO(inode) (NFS_I(inode)->attrtimeo)
#define NFS_MINATTRTIMEO(inode) \
(S_ISDIR(inode->i_mode)? NFS_SERVER(inode)->acdirmin \
: NFS_SERVER(inode)->acregmin)
#define NFS_MAXATTRTIMEO(inode) \
(S_ISDIR(inode->i_mode)? NFS_SERVER(inode)->acdirmax \
: NFS_SERVER(inode)->acregmax)
-#define NFS_ATTRTIMEO_UPDATE(inode) (NFS_I(inode)->attrtimeo_timestamp)
#define NFS_FLAGS(inode) (NFS_I(inode)->flags)
#define NFS_STALE(inode) (test_bit(NFS_INO_STALE, &NFS_FLAGS(inode)))
#define NFS_FILEID(inode) (NFS_I(inode)->fileid)
-static inline int nfs_caches_unstable(struct inode *inode)
-{
- return atomic_read(&NFS_I(inode)->data_updates) != 0;
-}
-
static inline void nfs_mark_for_revalidate(struct inode *inode)
{
struct nfs_inode *nfsi = NFS_I(inode);
spin_unlock(&inode->i_lock);
}
-static inline void NFS_CACHEINV(struct inode *inode)
-{
- if (!nfs_caches_unstable(inode))
- nfs_mark_for_revalidate(inode);
-}
-
static inline int nfs_server_capable(struct inode *inode, int cap)
{
return NFS_SERVER(inode)->caps & cap;
return test_bit(NFS_INO_ADVISE_RDPLUS, &NFS_FLAGS(inode));
}
+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
- * @inode - pointer to inode
+ * @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 long nfs_save_change_attribute(struct inode *inode)
+static inline unsigned long nfs_save_change_attribute(struct inode *dir)
{
- return NFS_I(inode)->cache_change_attribute;
+ return NFS_I(dir)->cache_change_attribute;
}
/**
- * nfs_verify_change_attribute - Detects NFS inode cache updates
- * @inode - pointer to inode
+ * nfs_verify_change_attribute - Detects NFS remote directory changes
+ * @dir - pointer to parent directory inode
* @chattr - previously saved change attribute
- * Return "false" if metadata has been updated (or is in the process of
- * being updated) since the change attribute was saved.
+ * 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 *inode, unsigned long chattr)
+static inline int nfs_verify_change_attribute(struct inode *dir, unsigned long chattr)
{
- return !nfs_caches_unstable(inode)
- && time_after_eq(chattr, NFS_I(inode)->cache_change_attribute);
+ return chattr == NFS_I(dir)->cache_change_attribute;
}
/*
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, 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_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 *);
-extern void nfs_end_attr_update(struct inode *);
-extern void nfs_begin_data_update(struct inode *);
-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 const struct file_operations nfs_file_operations;
extern const struct address_space_operations nfs_file_aops;
-static inline struct rpc_cred *nfs_file_cred(struct file *file)
+static inline struct nfs_open_context *nfs_file_open_context(struct file *filp)
{
- if (file != NULL) {
- struct nfs_open_context *ctx;
+ return filp->private_data;
+}
- ctx = (struct nfs_open_context*)file->private_data;
- return ctx->cred;
- }
+static inline struct rpc_cred *nfs_file_cred(struct file *file)
+{
+ if (file != NULL)
+ return nfs_file_open_context(file)->cred;
return NULL;
}
extern struct dentry_operations nfs_dentry_operations;
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
/*
* linux/fs/nfs/unlink.c
*/
-extern int nfs_async_unlink(struct dentry *);
-extern void nfs_complete_unlink(struct dentry *);
+extern int nfs_async_unlink(struct inode *dir, struct dentry *dentry);
+extern void nfs_complete_unlink(struct dentry *dentry, struct inode *);
/*
* linux/fs/nfs/write.c
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 *);
-extern int nfs_set_page_dirty(struct page *);
/*
* 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_sync_mapping_range(struct address_space *, loff_t, loff_t, 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_priority(struct inode *inode, struct page* page, int how);
+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_commit_alloc(void);
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