diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c
index f1027b06a1a9625e8fe7b0e7c551ce13e510414d..4fa788c93f4655bc0d014ff6090e12f5a31ef75d 100644
--- a/fs/nfs/blocklayout/blocklayout.c
+++ b/fs/nfs/blocklayout/blocklayout.c
@@ -40,6 +40,7 @@
#include <linux/pagevec.h>
#include "../pnfs.h"
+#include "../nfs4session.h"
#include "../internal.h"
#include "blocklayout.h"
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index ea6a7b190e6bd97b9652a50a4ce14a6e752b86a4..59461c957d9d7ed7204e09f9fad1aa0b154d8486 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -16,6 +16,7 @@
#include "nfs4_fs.h"
#include "callback.h"
#include "internal.h"
+#include "nfs4session.h"
#define CB_OP_TAGLEN_MAXSZ (512)
#define CB_OP_HDR_RES_MAXSZ (2 + CB_OP_TAGLEN_MAXSZ)
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 8965a998b306988a9ea86360ef6b7f7c4acefc61..9bdbfc3884a9aac9bed247e7d72e4f5cb382950b 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -18,27 +18,6 @@ struct nfs_string;
*/
#define NFS_MAX_READAHEAD (RPC_DEF_SLOT_TABLE - 1)
-/*
- * Determine if sessions are in use.
- */
-static inline int nfs4_has_session(const struct nfs_client *clp)
-{
-#ifdef CONFIG_NFS_V4_1
- if (clp->cl_session)
- return 1;
-#endif /* CONFIG_NFS_V4_1 */
- return 0;
-}
-
-static inline int nfs4_has_persistent_session(const struct nfs_client *clp)
-{
-#ifdef CONFIG_NFS_V4_1
- if (nfs4_has_session(clp))
- return (clp->cl_session->flags & SESSION4_PERSIST);
-#endif /* CONFIG_NFS_V4_1 */
- return 0;
-}
-
static inline void nfs_attr_check_mountpoint(struct super_block *parent, struct nfs_fattr *fattr)
{
if (!nfs_fsid_equal(&NFS_SB(parent)->fsid, &fattr->fsid))
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index cd3e3096b60ad78f9cda46008afc535308604580..322bd0168ebf410857a2f56706a52a5dbcb303d9 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -29,11 +29,6 @@ enum nfs4_client_state {
NFS4CLNT_BIND_CONN_TO_SESSION,
};
-enum nfs4_session_state {
- NFS4_SESSION_INITING,
- NFS4_SESSION_DRAINING,
-};
-
#define NFS4_RENEW_TIMEOUT 0x01
#define NFS4_RENEW_DELEGATION_CB 0x02
@@ -327,13 +322,6 @@ int nfs41_discover_server_trunking(struct nfs_client *clp,
extern void nfs4_schedule_session_recovery(struct nfs4_session *, int);
extern void nfs41_server_notify_target_slotid_update(struct nfs_client *clp);
-extern void nfs4_session_drain_complete(struct nfs4_session *session,
- struct nfs4_slot_table *tbl);
-
-static inline bool nfs4_session_draining(struct nfs4_session *session)
-{
- return !!test_bit(NFS4_SESSION_DRAINING, &session->session_state);
-}
#else
static inline void nfs4_schedule_session_recovery(struct nfs4_session *session, int err)
{
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
index bfb28fa38e74f841243cbe49292a9faa9e795a1e..591a1a7f8f948cb8eaebc10256843a824e88305a 100644
--- a/fs/nfs/nfs4filelayout.c
+++ b/fs/nfs/nfs4filelayout.c
@@ -35,6 +35,7 @@
#include <linux/sunrpc/metrics.h>
+#include "nfs4session.h"
#include "internal.h"
#include "delegation.h"
#include "nfs4filelayout.h"
diff --git a/fs/nfs/nfs4session.h b/fs/nfs/nfs4session.h
index cb47b1eb0886a1aa86f6aa0e2cd06304ef161565..e96323ff1d956fa2bee65d481fbf85122124e1e7 100644
--- a/fs/nfs/nfs4session.h
+++ b/fs/nfs/nfs4session.h
@@ -7,6 +7,68 @@
#ifndef __LINUX_FS_NFS_NFS4SESSION_H
#define __LINUX_FS_NFS_NFS4SESSION_H
+/* 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 IS_ENABLED(CONFIG_NFS_V4)
+
+/* Sessions slot seqid */
+struct nfs4_slot {
+ struct nfs4_slot_table *table;
+ struct nfs4_slot *next;
+ unsigned long generation;
+ unsigned long renewal_time;
+ u32 slot_nr;
+ u32 seq_nr;
+};
+
+/* Sessions */
+#define SLOT_TABLE_SZ DIV_ROUND_UP(NFS4_MAX_SLOT_TABLE, 8*sizeof(long))
+struct nfs4_slot_table {
+ struct nfs4_session *session; /* Parent session */
+ 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 max_slotid; /* Max allowed slotid value */
+ u32 highest_used_slotid; /* sent to server on each SEQ.
+ * op for dynamic resizing */
+ u32 target_highest_slotid; /* Server max_slot target */
+ u32 server_highest_slotid; /* Server highest slotid */
+ unsigned long generation; /* Generation counter for
+ target_highest_slotid */
+ struct completion complete;
+};
+
+/*
+ * 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;
+ /* Create session arguments */
+ unsigned int fc_target_max_rqst_sz;
+ unsigned int fc_target_max_resp_sz;
+};
+
+enum nfs4_session_state {
+ NFS4_SESSION_INITING,
+ NFS4_SESSION_DRAINING,
+};
+
#if defined(CONFIG_NFS_V4_1)
extern struct nfs4_slot *nfs4_alloc_slot(struct nfs4_slot_table *tbl);
extern void nfs4_free_slot(struct nfs4_slot_table *tbl, struct nfs4_slot *slot);
@@ -24,6 +86,31 @@ extern void nfs4_destroy_session(struct nfs4_session *session);
extern int nfs4_init_session(struct nfs_server *server);
extern int nfs4_init_ds_session(struct nfs_client *, unsigned long);
+extern void nfs4_session_drain_complete(struct nfs4_session *session,
+ struct nfs4_slot_table *tbl);
+
+static inline bool nfs4_session_draining(struct nfs4_session *session)
+{
+ return !!test_bit(NFS4_SESSION_DRAINING, &session->session_state);
+}
+
+/*
+ * Determine if sessions are in use.
+ */
+static inline int nfs4_has_session(const struct nfs_client *clp)
+{
+ if (clp->cl_session)
+ return 1;
+ return 0;
+}
+
+static inline int nfs4_has_persistent_session(const struct nfs_client *clp)
+{
+ if (nfs4_has_session(clp))
+ return (clp->cl_session->flags & SESSION4_PERSIST);
+ return 0;
+}
+
#else /* defined(CONFIG_NFS_V4_1) */
static inline int nfs4_init_session(struct nfs_server *server)
@@ -31,5 +118,19 @@ static inline int nfs4_init_session(struct nfs_server *server)
return 0;
}
+/*
+ * Determine if sessions are in use.
+ */
+static inline int nfs4_has_session(const struct nfs_client *clp)
+{
+ return 0;
+}
+
+static inline int nfs4_has_persistent_session(const struct nfs_client *clp)
+{
+ return 0;
+}
+
#endif /* defined(CONFIG_NFS_V4_1) */
+#endif /* IS_ENABLED(CONFIG_NFS_V4) */
#endif /* __LINUX_FS_NFS_NFS4SESSION_H */
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 1077b96983819473e88b65ec3c38041a4b5671b6..1402283d152d48626134d046bd591e303b80050c 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -57,6 +57,7 @@
#include "callback.h"
#include "delegation.h"
#include "internal.h"
+#include "nfs4session.h"
#include "pnfs.h"
#include "netns.h"
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index a67040f5159722ed20df641bcfb76683412355cc..e786dc7582b1b2e6f886c489c8294634ffb96f11 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -56,6 +56,7 @@
#include "nfs4_fs.h"
#include "internal.h"
+#include "nfs4session.h"
#include "pnfs.h"
#include "netns.h"
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 652d3f7176a98fcc4e70e6f5e3d812e4b3d90b83..e12cea4b36a53a448d57c72bcfd4298924597f79 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -64,6 +64,7 @@
#include "iostat.h"
#include "internal.h"
#include "fscache.h"
+#include "nfs4session.h"
#include "pnfs.h"
#include "nfs.h"
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index e707c1b697960b174070cff4268ebffb9446cac4..6c6ed153a9b4833f055ac7899b066b9c87782ece 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -198,53 +198,4 @@ struct nfs_server {
#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 IS_ENABLED(CONFIG_NFS_V4)
-
-/* Sessions */
-#define SLOT_TABLE_SZ DIV_ROUND_UP(NFS4_MAX_SLOT_TABLE, 8*sizeof(long))
-struct nfs4_slot_table {
- struct nfs4_session *session; /* Parent session */
- 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 max_slotid; /* Max allowed slotid value */
- u32 highest_used_slotid; /* sent to server on each SEQ.
- * op for dynamic resizing */
- u32 target_highest_slotid; /* Server max_slot target */
- u32 server_highest_slotid; /* Server highest slotid */
- unsigned long generation; /* Generation counter for
- target_highest_slotid */
- struct completion complete;
-};
-
-/*
- * 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;
- /* Create session arguments */
- unsigned int fc_target_max_rqst_sz;
- unsigned int fc_target_max_resp_sz;
-};
-
-#endif /* CONFIG_NFS_V4 */
#endif
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 44d256f6021c8e025c1e2f8a7cfc605140b71731..2076149db1a48918cc6b8e3d4751344b23cef70d 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -185,16 +185,7 @@ struct nfs4_channel_attrs {
u32 max_reqs;
};
-/* nfs41 sessions slot seqid */
-struct nfs4_slot {
- struct nfs4_slot_table *table;
- struct nfs4_slot *next;
- unsigned long generation;
- unsigned long renewal_time;
- u32 slot_nr;
- u32 seq_nr;
-};
-
+struct nfs4_slot;
struct nfs4_sequence_args {
struct nfs4_slot *sa_slot;
u8 sa_cache_this;