From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/fs/nfs/nfs4_fs.h | 180 +++++++++++++++++++++++++++++++++++++++++------------------
1 files changed, 124 insertions(+), 56 deletions(-)
diff --git a/kernel/fs/nfs/nfs4_fs.h b/kernel/fs/nfs/nfs4_fs.h
index 5ac7bf2..8b41c0b 100644
--- a/kernel/fs/nfs/nfs4_fs.h
+++ b/kernel/fs/nfs/nfs4_fs.h
@@ -42,7 +42,11 @@
NFS4CLNT_LEASE_MOVED,
NFS4CLNT_DELEGATION_EXPIRED,
NFS4CLNT_RUN_MANAGER,
- NFS4CLNT_DELEGRETURN_RUNNING,
+ NFS4CLNT_MANAGER_AVAILABLE,
+ NFS4CLNT_RECALL_RUNNING,
+ NFS4CLNT_RECALL_ANY_LAYOUT_READ,
+ NFS4CLNT_RECALL_ANY_LAYOUT_RW,
+ NFS4CLNT_DELEGRETURN_DELAYED,
};
#define NFS4_RENEW_TIMEOUT 0x01
@@ -62,10 +66,11 @@
void (*free_lock_state)(struct nfs_server *,
struct nfs4_lock_state *);
int (*test_and_free_expired)(struct nfs_server *,
- nfs4_stateid *, struct rpc_cred *);
+ nfs4_stateid *, const struct cred *);
struct nfs_seqid *
(*alloc_seqid)(struct nfs_seqid_counter *, gfp_t);
- int (*session_trunk)(struct rpc_clnt *, struct rpc_xprt *, void *);
+ void (*session_trunk)(struct rpc_clnt *clnt,
+ struct rpc_xprt *xprt, void *data);
const struct rpc_call_ops *call_sync_ops;
const struct nfs4_state_recovery_ops *reboot_recovery_ops;
const struct nfs4_state_recovery_ops *nograce_recovery_ops;
@@ -107,14 +112,14 @@
unsigned long so_expires;
struct rb_node so_server_node;
- struct rpc_cred *so_cred; /* Associated cred */
+ const struct cred *so_cred; /* Associated cred */
spinlock_t so_lock;
atomic_t so_count;
unsigned long so_flags;
struct list_head so_states;
struct nfs_seqid_counter so_seqid;
- seqcount_t so_reclaim_seqcount;
+ seqcount_spinlock_t so_reclaim_seqcount;
struct mutex so_delegreturn_mutex;
};
@@ -165,9 +170,9 @@
NFS_STATE_RECOVERY_FAILED, /* OPEN stateid state recovery failed */
NFS_STATE_MAY_NOTIFY_LOCK, /* server may CB_NOTIFY_LOCK */
NFS_STATE_CHANGE_WAIT, /* A state changing operation is outstanding */
-#ifdef CONFIG_NFS_V4_2
NFS_CLNT_DST_SSC_COPY_STATE, /* dst server open state on client*/
-#endif /* CONFIG_NFS_V4_2 */
+ NFS_CLNT_SRC_SSC_COPY_STATE, /* src server open state on client*/
+ NFS_SRV_SSC_COPY_STATE, /* ssc state on the dst server */
};
struct nfs4_state {
@@ -190,9 +195,10 @@
unsigned int n_wronly; /* Number of write-only references */
unsigned int n_rdwr; /* Number of read/write references */
fmode_t state; /* State on the server (R,W, or RW) */
- atomic_t count;
+ refcount_t count;
wait_queue_head_t waitq;
+ struct rcu_head rcu_head;
};
@@ -205,6 +211,7 @@
unsigned char delay : 1,
recovering : 1,
retry : 1;
+ bool interruptible;
};
struct nfs4_state_recovery_ops {
@@ -212,10 +219,10 @@
int state_flag_bit;
int (*recover_open)(struct nfs4_state_owner *, struct nfs4_state *);
int (*recover_lock)(struct nfs4_state *, struct file_lock *);
- int (*establish_clid)(struct nfs_client *, struct rpc_cred *);
- int (*reclaim_complete)(struct nfs_client *, struct rpc_cred *);
+ int (*establish_clid)(struct nfs_client *, const struct cred *);
+ int (*reclaim_complete)(struct nfs_client *, const struct cred *);
int (*detect_trunking)(struct nfs_client *, struct nfs_client **,
- struct rpc_cred *);
+ const struct cred *);
};
struct nfs4_opendata {
@@ -245,19 +252,19 @@
struct nfs4_add_xprt_data {
struct nfs_client *clp;
- struct rpc_cred *cred;
+ const struct cred *cred;
};
struct nfs4_state_maintenance_ops {
- int (*sched_state_renewal)(struct nfs_client *, struct rpc_cred *, unsigned);
- struct rpc_cred * (*get_state_renewal_cred_locked)(struct nfs_client *);
- int (*renew_lease)(struct nfs_client *, struct rpc_cred *);
+ int (*sched_state_renewal)(struct nfs_client *, const struct cred *, unsigned);
+ const struct cred * (*get_state_renewal_cred)(struct nfs_client *);
+ int (*renew_lease)(struct nfs_client *, const struct cred *);
};
struct nfs4_mig_recovery_ops {
int (*get_locations)(struct inode *, struct nfs4_fs_locations *,
- struct page *, struct rpc_cred *);
- int (*fsid_present)(struct inode *, struct rpc_cred *);
+ struct page *, const struct cred *);
+ int (*fsid_present)(struct inode *, const struct cred *);
};
extern const struct dentry_operations nfs4_dentry_operations;
@@ -266,18 +273,17 @@
int nfs_atomic_open(struct inode *, struct dentry *, struct file *,
unsigned, umode_t);
-/* super.c */
+/* fs_context.c */
extern struct file_system_type nfs4_fs_type;
/* nfs4namespace.c */
struct rpc_clnt *nfs4_negotiate_security(struct rpc_clnt *, struct inode *,
const struct qstr *);
-struct vfsmount *nfs4_submount(struct nfs_server *, struct dentry *,
- struct nfs_fh *, struct nfs_fattr *);
+int nfs4_submount(struct fs_context *, struct nfs_server *);
int nfs4_replace_transport(struct nfs_server *server,
const struct nfs4_fs_locations *locations);
size_t nfs_parse_server_name(char *string, size_t len, struct sockaddr *sa,
- size_t salen, struct net *net);
+ size_t salen, struct net *net, int port);
/* nfs4proc.c */
extern int nfs4_handle_exception(struct nfs_server *, int, struct nfs4_exception *);
extern int nfs4_async_handle_error(struct rpc_task *task,
@@ -287,36 +293,52 @@
struct rpc_message *, struct nfs4_sequence_args *,
struct nfs4_sequence_res *, int);
extern void nfs4_init_sequence(struct nfs4_sequence_args *, struct nfs4_sequence_res *, int, int);
-extern int nfs4_proc_setclientid(struct nfs_client *, u32, unsigned short, struct rpc_cred *, struct nfs4_setclientid_res *);
-extern int nfs4_proc_setclientid_confirm(struct nfs_client *, struct nfs4_setclientid_res *arg, struct rpc_cred *);
+extern int nfs4_proc_setclientid(struct nfs_client *, u32, unsigned short, const struct cred *, struct nfs4_setclientid_res *);
+extern int nfs4_proc_setclientid_confirm(struct nfs_client *, struct nfs4_setclientid_res *arg, const struct cred *);
extern int nfs4_proc_get_rootfh(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *, bool);
-extern int nfs4_proc_bind_conn_to_session(struct nfs_client *, struct rpc_cred *cred);
-extern int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred);
+extern int nfs4_proc_bind_conn_to_session(struct nfs_client *, const struct cred *cred);
+extern int nfs4_proc_exchange_id(struct nfs_client *clp, const struct cred *cred);
extern int nfs4_destroy_clientid(struct nfs_client *clp);
-extern int nfs4_init_clientid(struct nfs_client *, struct rpc_cred *);
-extern int nfs41_init_clientid(struct nfs_client *, struct rpc_cred *);
+extern int nfs4_init_clientid(struct nfs_client *, const struct cred *);
+extern int nfs41_init_clientid(struct nfs_client *, const struct cred *);
extern int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait);
extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle);
extern int nfs4_proc_fs_locations(struct rpc_clnt *, struct inode *, const struct qstr *,
struct nfs4_fs_locations *, struct page *);
extern int nfs4_proc_get_locations(struct inode *, struct nfs4_fs_locations *,
- struct page *page, struct rpc_cred *);
-extern int nfs4_proc_fsid_present(struct inode *, struct rpc_cred *);
-extern struct rpc_clnt *nfs4_proc_lookup_mountpoint(struct inode *, const struct qstr *,
- struct nfs_fh *, struct nfs_fattr *);
+ struct page *page, const struct cred *);
+extern int nfs4_proc_fsid_present(struct inode *, const struct cred *);
+extern struct rpc_clnt *nfs4_proc_lookup_mountpoint(struct inode *,
+ struct dentry *,
+ struct nfs_fh *,
+ struct nfs_fattr *);
extern int nfs4_proc_secinfo(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
extern const struct xattr_handler *nfs4_xattr_handlers[];
extern int nfs4_set_rw_stateid(nfs4_stateid *stateid,
const struct nfs_open_context *ctx,
const struct nfs_lock_context *l_ctx,
fmode_t fmode);
+extern int nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
+ struct nfs_fattr *fattr, struct nfs4_label *label,
+ struct inode *inode);
+extern int update_open_stateid(struct nfs4_state *state,
+ const nfs4_stateid *open_stateid,
+ const nfs4_stateid *deleg_stateid,
+ fmode_t fmode);
+
+extern int nfs4_proc_get_lease_time(struct nfs_client *clp,
+ struct nfs_fsinfo *fsinfo);
+extern void nfs4_update_changeattr(struct inode *dir,
+ struct nfs4_change_info *cinfo,
+ unsigned long timestamp,
+ unsigned long cache_validity);
+extern int nfs4_buf_to_pages_noslab(const void *buf, size_t buflen,
+ struct page **pages);
#if defined(CONFIG_NFS_V4_1)
extern int nfs41_sequence_done(struct rpc_task *, struct nfs4_sequence_res *);
-extern int nfs4_proc_create_session(struct nfs_client *, struct rpc_cred *);
-extern int nfs4_proc_destroy_session(struct nfs4_session *, struct rpc_cred *);
-extern int nfs4_proc_get_lease_time(struct nfs_client *clp,
- struct nfs_fsinfo *fsinfo);
+extern int nfs4_proc_create_session(struct nfs_client *, const struct cred *);
+extern int nfs4_proc_destroy_session(struct nfs4_session *, const struct cred *);
extern int nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data,
bool sync);
extern int nfs4_detect_session_trunking(struct nfs_client *clp,
@@ -339,7 +361,6 @@
_nfs4_state_protect(struct nfs_client *clp, unsigned long sp4_mode,
struct rpc_clnt **clntp, struct rpc_message *msg)
{
- struct rpc_cred *newcred = NULL;
rpc_authflavor_t flavor;
if (sp4_mode == NFS_SP4_MACH_CRED_CLEANUP ||
@@ -354,13 +375,7 @@
return false;
}
if (test_bit(sp4_mode, &clp->cl_sp4_flags)) {
- spin_lock(&clp->cl_lock);
- if (clp->cl_machine_cred != NULL)
- /* don't call get_rpccred on the machine cred -
- * a reference will be held for life of clp */
- newcred = clp->cl_machine_cred;
- spin_unlock(&clp->cl_lock);
- msg->rpc_cred = newcred;
+ msg->rpc_cred = rpc_machine_cred();
flavor = clp->cl_rpcclient->cl_auth->au_flavor;
WARN_ON_ONCE(flavor != RPC_AUTH_GSS_KRB5I &&
@@ -445,31 +460,33 @@
extern void nfs4_renewd_prepare_shutdown(struct nfs_server *);
extern void nfs4_kill_renewd(struct nfs_client *);
extern void nfs4_renew_state(struct work_struct *);
-extern void nfs4_set_lease_period(struct nfs_client *clp,
- unsigned long lease,
- unsigned long lastrenewed);
+extern void nfs4_set_lease_period(struct nfs_client *clp, unsigned long lease);
/* nfs4state.c */
-struct rpc_cred *nfs4_get_clid_cred(struct nfs_client *clp);
-struct rpc_cred *nfs4_get_machine_cred_locked(struct nfs_client *clp);
-struct rpc_cred *nfs4_get_renew_cred_locked(struct nfs_client *clp);
+extern const nfs4_stateid current_stateid;
+
+const struct cred *nfs4_get_clid_cred(struct nfs_client *clp);
+const struct cred *nfs4_get_machine_cred(struct nfs_client *clp);
+const struct cred *nfs4_get_renew_cred(struct nfs_client *clp);
int nfs4_discover_server_trunking(struct nfs_client *clp,
struct nfs_client **);
int nfs40_discover_server_trunking(struct nfs_client *clp,
- struct nfs_client **, struct rpc_cred *);
+ struct nfs_client **, const struct cred *);
#if defined(CONFIG_NFS_V4_1)
int nfs41_discover_server_trunking(struct nfs_client *clp,
- struct nfs_client **, struct rpc_cred *);
+ struct nfs_client **, const struct cred *);
extern void nfs4_schedule_session_recovery(struct nfs4_session *, int);
extern void nfs41_notify_server(struct nfs_client *);
+bool nfs4_check_serverowner_major_id(struct nfs41_server_owner *o1,
+ struct nfs41_server_owner *o2);
#else
static inline void nfs4_schedule_session_recovery(struct nfs4_session *session, int err)
{
}
#endif /* CONFIG_NFS_V4_1 */
-extern struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *, struct rpc_cred *, gfp_t);
+extern struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *, const struct cred *, gfp_t);
extern void nfs4_put_state_owner(struct nfs4_state_owner *);
extern void nfs4_purge_state_owners(struct nfs_server *, struct list_head *);
extern void nfs4_free_state_owners(struct list_head *head);
@@ -496,9 +513,7 @@
extern int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl);
extern int nfs4_select_rw_stateid(struct nfs4_state *, fmode_t,
const struct nfs_lock_context *, nfs4_stateid *,
- struct rpc_cred **);
-extern bool nfs4_refresh_open_stateid(nfs4_stateid *dst,
- struct nfs4_state *state);
+ const struct cred **);
extern bool nfs4_copy_open_stateid(nfs4_stateid *dst,
struct nfs4_state *state);
@@ -523,7 +538,6 @@
/* nfs4super.c */
struct nfs_mount_info;
extern struct nfs_subversion nfs_v4;
-struct dentry *nfs4_try_mount(int, const char *, struct nfs_mount_info *, struct nfs_subversion *);
extern bool nfs4_disable_idmapping;
extern unsigned short max_session_slots;
extern unsigned short max_session_cb_slots;
@@ -532,6 +546,9 @@
#define NFS4_CLIENT_ID_UNIQ_LEN (64)
extern char nfs4_client_id_uniquifier[NFS4_CLIENT_ID_UNIQ_LEN];
+
+extern int nfs4_try_get_tree(struct fs_context *);
+extern int nfs4_get_referral_tree(struct fs_context *);
/* nfs4sysctl.c */
#ifdef CONFIG_SYSCTL
@@ -550,6 +567,12 @@
/* nfs4xdr.c */
extern const struct rpc_procinfo nfs4_procedures[];
+
+#ifdef CONFIG_NFS_V4_2
+extern const u32 nfs42_maxsetxattr_overhead;
+extern const u32 nfs42_maxgetxattr_overhead;
+extern const u32 nfs42_maxlistxattrs_overhead;
+#endif
struct nfs4_mount_data;
@@ -580,6 +603,29 @@
return (s32)(be32_to_cpu(s1->seqid) - be32_to_cpu(s2->seqid)) > 0;
}
+static inline bool nfs4_stateid_is_next(const nfs4_stateid *s1, const nfs4_stateid *s2)
+{
+ u32 seq1 = be32_to_cpu(s1->seqid);
+ u32 seq2 = be32_to_cpu(s2->seqid);
+
+ return seq2 == seq1 + 1U || (seq2 == 1U && seq1 == 0xffffffffU);
+}
+
+static inline bool nfs4_stateid_match_or_older(const nfs4_stateid *dst, const nfs4_stateid *src)
+{
+ return nfs4_stateid_match_other(dst, src) &&
+ !(src->seqid && nfs4_stateid_is_newer(dst, src));
+}
+
+static inline void nfs4_stateid_seqid_inc(nfs4_stateid *s1)
+{
+ u32 seqid = be32_to_cpu(s1->seqid);
+
+ if (++seqid == 0)
+ ++seqid;
+ s1->seqid = cpu_to_be32(seqid);
+}
+
static inline bool nfs4_valid_open_stateid(const struct nfs4_state *state)
{
return test_bit(NFS_STATE_RECOVERY_FAILED, &state->flags) == 0;
@@ -592,12 +638,34 @@
nfs4_stateid_match_other(&state->open_stateid, stateid);
}
+/* nfs42xattr.c */
+#ifdef CONFIG_NFS_V4_2
+extern int __init nfs4_xattr_cache_init(void);
+extern void nfs4_xattr_cache_exit(void);
+extern void nfs4_xattr_cache_add(struct inode *inode, const char *name,
+ const char *buf, struct page **pages,
+ ssize_t buflen);
+extern void nfs4_xattr_cache_remove(struct inode *inode, const char *name);
+extern ssize_t nfs4_xattr_cache_get(struct inode *inode, const char *name,
+ char *buf, ssize_t buflen);
+extern void nfs4_xattr_cache_set_list(struct inode *inode, const char *buf,
+ ssize_t buflen);
+extern ssize_t nfs4_xattr_cache_list(struct inode *inode, char *buf,
+ ssize_t buflen);
+extern void nfs4_xattr_cache_zap(struct inode *inode);
#else
+static inline void nfs4_xattr_cache_zap(struct inode *inode)
+{
+}
+#endif /* CONFIG_NFS_V4_2 */
+
+#else /* CONFIG_NFS_V4 */
#define nfs4_close_state(a, b) do { } while (0)
#define nfs4_close_sync(a, b) do { } while (0)
#define nfs4_state_protect(a, b, c, d) do { } while (0)
#define nfs4_state_protect_write(a, b, c, d) do { } while (0)
+
#endif /* CONFIG_NFS_V4 */
#endif /* __LINUX_FS_NFS_NFS4_FS.H */
--
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