#define NFS_MAX_FILE_IO_BUFFER_SIZE 32768
#define NFS_DEF_FILE_IO_BUFFER_SIZE 4096
+/* Default timeout values */
+#define NFS_MAX_UDP_TIMEOUT (60*HZ)
+#define NFS_MAX_TCP_TIMEOUT (600*HZ)
+
/*
* superblock magic number for NFS
*/
unsigned long attrtimeo_timestamp;
__u64 change_attr; /* v4 only */
+ unsigned long last_updated;
/* "Generation counter" for the attribute cache. This is
* bumped whenever we update the metadata on the
* server.
return atomic_read(&NFS_I(inode)->data_updates) != 0;
}
+static inline void nfs_mark_for_revalidate(struct inode *inode)
+{
+ spin_lock(&inode->i_lock);
+ NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS;
+ spin_unlock(&inode->i_lock);
+}
+
static inline void NFS_CACHEINV(struct inode *inode)
{
- if (!nfs_caches_unstable(inode)) {
- spin_lock(&inode->i_lock);
- NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS;
- spin_unlock(&inode->i_lock);
- }
+ if (!nfs_caches_unstable(inode))
+ nfs_mark_for_revalidate(inode);
}
static inline int nfs_server_capable(struct inode *inode, int cap)
static inline int nfs_verify_change_attribute(struct inode *inode, unsigned long chattr)
{
return !nfs_caches_unstable(inode)
- && chattr == NFS_I(inode)->cache_change_attribute;
+ && time_after_eq(chattr, NFS_I(inode)->cache_change_attribute);
}
/*
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_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 *);
/* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */
extern u32 root_nfs_parse_addr(char *name); /*__init*/
+static inline void nfs_fattr_init(struct nfs_fattr *fattr)
+{
+ fattr->valid = 0;
+ fattr->time_start = jiffies;
+}
+
/*
* linux/fs/nfs/file.c
*/