Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 243 insertions, 0 deletions

diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
new file mode 100644
index 00000000..7073fc74
--- /dev/null
+++ b/include/linux/nfs_fs_sb.h
@@ -0,0 +1,243 @@
+#ifndef _NFS_FS_SB
+#define _NFS_FS_SB
+
+#include <linux/list.h>
+#include <linux/backing-dev.h>
+#include <linux/idr.h>
+#include <linux/wait.h>
+#include <linux/nfs_xdr.h>
+#include <linux/sunrpc/xprt.h>
+
+#include <linux/atomic.h>
+
+struct nfs4_session;
+struct nfs_iostats;
+struct nlm_host;
+struct nfs4_sequence_args;
+struct nfs4_sequence_res;
+struct nfs_server;
+struct nfs4_minor_version_ops;
+struct server_scope;
+struct nfs41_impl_id;
+
+/*
+ * The nfs_client identifies our client state to the server.
+ */
+struct nfs_client {
+	atomic_t		cl_count;
+	int			cl_cons_state;	/* current construction state (-ve: init error) */
+#define NFS_CS_READY		0		/* ready to be used */
+#define NFS_CS_INITING		1		/* busy initialising */
+#define NFS_CS_SESSION_INITING	2		/* busy initialising  session */
+	unsigned long		cl_res_state;	/* NFS resources state */
+#define NFS_CS_CALLBACK		1		/* - callback started */
+#define NFS_CS_IDMAP		2		/* - idmap started */
+#define NFS_CS_RENEWD		3		/* - renewd started */
+#define NFS_CS_STOP_RENEW	4		/* no more state to renew */
+#define NFS_CS_CHECK_LEASE_TIME	5		/* need to check lease time */
+	struct sockaddr_storage	cl_addr;	/* server identifier */
+	size_t			cl_addrlen;
+	char *			cl_hostname;	/* hostname of server */
+	struct list_head	cl_share_link;	/* link in global client list */
+	struct list_head	cl_superblocks;	/* List of nfs_server structs */
+
+	struct rpc_clnt *	cl_rpcclient;
+	const struct nfs_rpc_ops *rpc_ops;	/* NFS protocol vector */
+	int			cl_proto;	/* Network transport protocol */
+
+	u32			cl_minorversion;/* NFSv4 minorversion */
+	struct rpc_cred		*cl_machine_cred;
+
+#ifdef CONFIG_NFS_V4
+	u64			cl_clientid;	/* constant */
+	nfs4_verifier		cl_confirm;	/* Clientid verifier */
+	unsigned long		cl_state;
+
+	spinlock_t		cl_lock;
+
+	unsigned long		cl_lease_time;
+	unsigned long		cl_last_renewal;
+	struct delayed_work	cl_renewd;
+
+	struct rpc_wait_queue	cl_rpcwaitq;
+
+	/* used for the setclientid verifier */
+	struct timespec		cl_boot_time;
+
+	/* idmapper */
+	struct idmap *		cl_idmap;
+
+	/* Our own IP address, as a null-terminated string.
+	 * This is used to generate the clientid, and the callback address.
+	 */
+	char			cl_ipaddr[48];
+	unsigned char		cl_id_uniquifier;
+	u32			cl_cb_ident;	/* v4.0 callback identifier */
+	const struct nfs4_minor_version_ops *cl_mvops;
+
+	/* The sequence id to use for the next CREATE_SESSION */
+	u32			cl_seqid;
+	/* The flags used for obtaining the clientid during EXCHANGE_ID */
+	u32			cl_exchange_flags;
+	struct nfs4_session	*cl_session; 	/* sharred session */
+#endif /* CONFIG_NFS_V4 */
+
+#ifdef CONFIG_NFS_FSCACHE
+	struct fscache_cookie	*fscache;	/* client index cache cookie */
+#endif
+
+	struct server_scope	*server_scope;	/* from exchange_id */
+	struct nfs41_impl_id	*impl_id;	/* from exchange_id */
+	struct net		*net;
+};
+
+/*
+ * NFS client parameters stored in the superblock.
+ */
+struct nfs_server {
+	struct nfs_client *	nfs_client;	/* shared client and NFS4 state */
+	struct list_head	client_link;	/* List of other nfs_server structs
+						 * that share the same client
+						 */
+	struct list_head	master_link;	/* link in master servers list */
+	struct rpc_clnt *	client;		/* RPC client handle */
+	struct rpc_clnt *	client_acl;	/* ACL RPC client handle */
+	struct nlm_host		*nlm_host;	/* NLM client handle */
+	struct nfs_iostats __percpu *io_stats;	/* I/O statistics */
+	struct backing_dev_info	backing_dev_info;
+	atomic_long_t		writeback;	/* number of writeback pages */
+	int			flags;		/* various flags */
+	unsigned int		caps;		/* server capabilities */
+	unsigned int		rsize;		/* read size */
+	unsigned int		rpages;		/* read size (in pages) */
+	unsigned int		wsize;		/* write size */
+	unsigned int		wpages;		/* write size (in pages) */
+	unsigned int		wtmult;		/* server disk block size */
+	unsigned int		dtsize;		/* readdir size */
+	unsigned short		port;		/* "port=" setting */
+	unsigned int		bsize;		/* server block size */
+	unsigned int		acregmin;	/* attr cache timeouts */
+	unsigned int		acregmax;
+	unsigned int		acdirmin;
+	unsigned int		acdirmax;
+	unsigned int		namelen;
+	unsigned int		options;	/* extra options enabled by mount */
+#define NFS_OPTION_FSCACHE	0x00000001	/* - local caching enabled */
+
+	struct nfs_fsid		fsid;
+	__u64			maxfilesize;	/* maximum file size */
+	struct timespec		time_delta;	/* smallest time granularity */
+	unsigned long		mount_time;	/* when this fs was mounted */
+	dev_t			s_dev;		/* superblock dev numbers */
+
+#ifdef CONFIG_NFS_FSCACHE
+	struct nfs_fscache_key	*fscache_key;	/* unique key for superblock */
+	struct fscache_cookie	*fscache;	/* superblock cookie */
+#endif
+
+	u32			pnfs_blksize;	/* layout_blksize attr */
+#ifdef CONFIG_NFS_V4
+	u32			attr_bitmask[3];/* V4 bitmask representing the set
+						   of attributes supported on this
+						   filesystem */
+	u32			cache_consistency_bitmask[2];
+						/* V4 bitmask representing the subset
+						   of change attribute, size, ctime
+						   and mtime attributes supported by
+						   the server */
+	u32			acl_bitmask;	/* V4 bitmask representing the ACEs
+						   that are supported on this
+						   filesystem */
+	u32			fh_expire_type;	/* V4 bitmask representing file
+						   handle volatility type for
+						   this filesystem */
+	struct pnfs_layoutdriver_type  *pnfs_curr_ld; /* Active layout driver */
+	struct rpc_wait_queue	roc_rpcwaitq;
+	void			*pnfs_ld_data;	/* per mount point data */
+
+	/* the following fields are protected by nfs_client->cl_lock */
+	struct rb_root		state_owners;
+#endif
+	struct ida		openowner_id;
+	struct ida		lockowner_id;
+	struct list_head	state_owners_lru;
+	struct list_head	layouts;
+	struct list_head	delegations;
+	void (*destroy)(struct nfs_server *);
+
+	atomic_t active; /* Keep trace of any activity to this server */
+
+	/* mountd-related mount options */
+	struct sockaddr_storage	mountd_address;
+	size_t			mountd_addrlen;
+	u32			mountd_version;
+	unsigned short		mountd_port;
+	unsigned short		mountd_protocol;
+};
+
+/* Server capabilities */
+#define NFS_CAP_READDIRPLUS	(1U << 0)
+#define NFS_CAP_HARDLINKS	(1U << 1)
+#define NFS_CAP_SYMLINKS	(1U << 2)
+#define NFS_CAP_ACLS		(1U << 3)
+#define NFS_CAP_ATOMIC_OPEN	(1U << 4)
+#define NFS_CAP_CHANGE_ATTR	(1U << 5)
+#define NFS_CAP_FILEID		(1U << 6)
+#define NFS_CAP_MODE		(1U << 7)
+#define NFS_CAP_NLINK		(1U << 8)
+#define NFS_CAP_OWNER		(1U << 9)
+#define NFS_CAP_OWNER_GROUP	(1U << 10)
+#define NFS_CAP_ATIME		(1U << 11)
+#define NFS_CAP_CTIME		(1U << 12)
+#define NFS_CAP_MTIME		(1U << 13)
+#define NFS_CAP_POSIX_LOCK	(1U << 14)
+#define NFS_CAP_UIDGID_NOMAP	(1U << 15)
+
+
+/* maximum number of slots to use */
+#define NFS4_DEF_SLOT_TABLE_SIZE (16U)
+#define NFS4_MAX_SLOT_TABLE (256U)
+#define NFS4_NO_SLOT ((u32)-1)
+
+#if defined(CONFIG_NFS_V4)
+
+/* Sessions */
+#define SLOT_TABLE_SZ DIV_ROUND_UP(NFS4_MAX_SLOT_TABLE, 8*sizeof(long))
+struct nfs4_slot_table {
+	struct nfs4_slot *slots;		/* seqid per slot */
+	unsigned long   used_slots[SLOT_TABLE_SZ]; /* used/unused bitmap */
+	spinlock_t	slot_tbl_lock;
+	struct rpc_wait_queue	slot_tbl_waitq;	/* allocators may wait here */
+	u32		max_slots;		/* # slots in table */
+	u32		highest_used_slotid;	/* sent to server on each SEQ.
+						 * op for dynamic resizing */
+	u32		target_max_slots;	/* Set by CB_RECALL_SLOT as
+						 * the new max_slots */
+	struct completion complete;
+};
+
+static inline int slot_idx(struct nfs4_slot_table *tbl, struct nfs4_slot *sp)
+{
+	return sp - tbl->slots;
+}
+
+/*
+ * Session related parameters
+ */
+struct nfs4_session {
+	struct nfs4_sessionid		sess_id;
+	u32				flags;
+	unsigned long			session_state;
+	u32				hash_alg;
+	u32				ssv_len;
+
+	/* The fore and back channel */
+	struct nfs4_channel_attrs	fc_attrs;
+	struct nfs4_slot_table		fc_slot_table;
+	struct nfs4_channel_attrs	bc_attrs;
+	struct nfs4_slot_table		bc_slot_table;
+	struct nfs_client		*clp;
+};
+
+#endif /* CONFIG_NFS_V4 */
+#endif