v4.19.13 snapshot.
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
new file mode 100644
index 0000000..bd1c889
--- /dev/null
+++ b/include/linux/nfs_xdr.h
@@ -0,0 +1,1689 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_NFS_XDR_H
+#define _LINUX_NFS_XDR_H
+
+#include <linux/nfsacl.h>
+#include <linux/sunrpc/gss_api.h>
+
+/*
+ * To change the maximum rsize and wsize supported by the NFS client, adjust
+ * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can
+ * support a megabyte or more. The default is left at 4096 bytes, which is
+ * reasonable for NFS over UDP.
+ */
+#define NFS_MAX_FILE_IO_SIZE (1048576U)
+#define NFS_DEF_FILE_IO_SIZE (4096U)
+#define NFS_MIN_FILE_IO_SIZE (1024U)
+
+struct nfs4_string {
+ unsigned int len;
+ char *data;
+};
+
+struct nfs_fsid {
+ uint64_t major;
+ uint64_t minor;
+};
+
+/*
+ * Helper for checking equality between 2 fsids.
+ */
+static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
+{
+ return a->major == b->major && a->minor == b->minor;
+}
+
+struct nfs4_threshold {
+ __u32 bm;
+ __u32 l_type;
+ __u64 rd_sz;
+ __u64 wr_sz;
+ __u64 rd_io_sz;
+ __u64 wr_io_sz;
+};
+
+struct nfs_fattr {
+ unsigned int valid; /* which fields are valid */
+ umode_t mode;
+ __u32 nlink;
+ kuid_t uid;
+ kgid_t gid;
+ dev_t rdev;
+ __u64 size;
+ union {
+ struct {
+ __u32 blocksize;
+ __u32 blocks;
+ } nfs2;
+ struct {
+ __u64 used;
+ } nfs3;
+ } du;
+ struct nfs_fsid fsid;
+ __u64 fileid;
+ __u64 mounted_on_fileid;
+ struct timespec atime;
+ struct timespec mtime;
+ struct timespec ctime;
+ __u64 change_attr; /* NFSv4 change attribute */
+ __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
+ __u64 pre_size; /* pre_op_attr.size */
+ struct timespec pre_mtime; /* pre_op_attr.mtime */
+ struct timespec pre_ctime; /* pre_op_attr.ctime */
+ unsigned long time_start;
+ unsigned long gencount;
+ struct nfs4_string *owner_name;
+ struct nfs4_string *group_name;
+ struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */
+};
+
+#define NFS_ATTR_FATTR_TYPE (1U << 0)
+#define NFS_ATTR_FATTR_MODE (1U << 1)
+#define NFS_ATTR_FATTR_NLINK (1U << 2)
+#define NFS_ATTR_FATTR_OWNER (1U << 3)
+#define NFS_ATTR_FATTR_GROUP (1U << 4)
+#define NFS_ATTR_FATTR_RDEV (1U << 5)
+#define NFS_ATTR_FATTR_SIZE (1U << 6)
+#define NFS_ATTR_FATTR_PRESIZE (1U << 7)
+#define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
+#define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
+#define NFS_ATTR_FATTR_FSID (1U << 10)
+#define NFS_ATTR_FATTR_FILEID (1U << 11)
+#define NFS_ATTR_FATTR_ATIME (1U << 12)
+#define NFS_ATTR_FATTR_MTIME (1U << 13)
+#define NFS_ATTR_FATTR_CTIME (1U << 14)
+#define NFS_ATTR_FATTR_PREMTIME (1U << 15)
+#define NFS_ATTR_FATTR_PRECTIME (1U << 16)
+#define NFS_ATTR_FATTR_CHANGE (1U << 17)
+#define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
+#define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
+#define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
+#define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
+#define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
+#define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
+#define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
+#define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25)
+
+#define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
+ | NFS_ATTR_FATTR_MODE \
+ | NFS_ATTR_FATTR_NLINK \
+ | NFS_ATTR_FATTR_OWNER \
+ | NFS_ATTR_FATTR_GROUP \
+ | NFS_ATTR_FATTR_RDEV \
+ | NFS_ATTR_FATTR_SIZE \
+ | NFS_ATTR_FATTR_FSID \
+ | NFS_ATTR_FATTR_FILEID \
+ | NFS_ATTR_FATTR_ATIME \
+ | NFS_ATTR_FATTR_MTIME \
+ | NFS_ATTR_FATTR_CTIME \
+ | NFS_ATTR_FATTR_CHANGE)
+#define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
+ | NFS_ATTR_FATTR_BLOCKS_USED)
+#define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
+ | NFS_ATTR_FATTR_SPACE_USED)
+#define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
+ | NFS_ATTR_FATTR_SPACE_USED \
+ | NFS_ATTR_FATTR_V4_SECURITY_LABEL)
+
+/*
+ * Maximal number of supported layout drivers.
+ */
+#define NFS_MAX_LAYOUT_TYPES 8
+
+/*
+ * Info on the file system
+ */
+struct nfs_fsinfo {
+ struct nfs_fattr *fattr; /* Post-op attributes */
+ __u32 rtmax; /* max. read transfer size */
+ __u32 rtpref; /* pref. read transfer size */
+ __u32 rtmult; /* reads should be multiple of this */
+ __u32 wtmax; /* max. write transfer size */
+ __u32 wtpref; /* pref. write transfer size */
+ __u32 wtmult; /* writes should be multiple of this */
+ __u32 dtpref; /* pref. readdir transfer size */
+ __u64 maxfilesize;
+ struct timespec time_delta; /* server time granularity */
+ __u32 lease_time; /* in seconds */
+ __u32 nlayouttypes; /* number of layouttypes */
+ __u32 layouttype[NFS_MAX_LAYOUT_TYPES]; /* supported pnfs layout driver */
+ __u32 blksize; /* preferred pnfs io block size */
+ __u32 clone_blksize; /* granularity of a CLONE operation */
+};
+
+struct nfs_fsstat {
+ struct nfs_fattr *fattr; /* Post-op attributes */
+ __u64 tbytes; /* total size in bytes */
+ __u64 fbytes; /* # of free bytes */
+ __u64 abytes; /* # of bytes available to user */
+ __u64 tfiles; /* # of files */
+ __u64 ffiles; /* # of free files */
+ __u64 afiles; /* # of files available to user */
+};
+
+struct nfs2_fsstat {
+ __u32 tsize; /* Server transfer size */
+ __u32 bsize; /* Filesystem block size */
+ __u32 blocks; /* No. of "bsize" blocks on filesystem */
+ __u32 bfree; /* No. of free "bsize" blocks */
+ __u32 bavail; /* No. of available "bsize" blocks */
+};
+
+struct nfs_pathconf {
+ struct nfs_fattr *fattr; /* Post-op attributes */
+ __u32 max_link; /* max # of hard links */
+ __u32 max_namelen; /* max name length */
+};
+
+struct nfs4_change_info {
+ u32 atomic;
+ u64 before;
+ u64 after;
+};
+
+struct nfs_seqid;
+
+/* nfs41 sessions channel attributes */
+struct nfs4_channel_attrs {
+ u32 max_rqst_sz;
+ u32 max_resp_sz;
+ u32 max_resp_sz_cached;
+ u32 max_ops;
+ u32 max_reqs;
+};
+
+struct nfs4_slot;
+struct nfs4_sequence_args {
+ struct nfs4_slot *sa_slot;
+ u8 sa_cache_this : 1,
+ sa_privileged : 1;
+};
+
+struct nfs4_sequence_res {
+ struct nfs4_slot *sr_slot; /* slot used to send request */
+ unsigned long sr_timestamp;
+ int sr_status; /* sequence operation status */
+ u32 sr_status_flags;
+ u32 sr_highest_slotid;
+ u32 sr_target_highest_slotid;
+};
+
+struct nfs4_get_lease_time_args {
+ struct nfs4_sequence_args la_seq_args;
+};
+
+struct nfs4_get_lease_time_res {
+ struct nfs4_sequence_res lr_seq_res;
+ struct nfs_fsinfo *lr_fsinfo;
+};
+
+struct xdr_stream;
+struct nfs4_xdr_opaque_data;
+
+struct nfs4_xdr_opaque_ops {
+ void (*encode)(struct xdr_stream *, const void *args,
+ const struct nfs4_xdr_opaque_data *);
+ void (*free)(struct nfs4_xdr_opaque_data *);
+};
+
+struct nfs4_xdr_opaque_data {
+ const struct nfs4_xdr_opaque_ops *ops;
+ void *data;
+};
+
+#define PNFS_LAYOUT_MAXSIZE 4096
+
+struct nfs4_layoutdriver_data {
+ struct page **pages;
+ __u32 pglen;
+ __u32 len;
+};
+
+struct pnfs_layout_range {
+ u32 iomode;
+ u64 offset;
+ u64 length;
+};
+
+struct nfs4_layoutget_args {
+ struct nfs4_sequence_args seq_args;
+ __u32 type;
+ struct pnfs_layout_range range;
+ __u64 minlength;
+ __u32 maxcount;
+ struct inode *inode;
+ struct nfs_open_context *ctx;
+ nfs4_stateid stateid;
+ struct nfs4_layoutdriver_data layout;
+};
+
+struct nfs4_layoutget_res {
+ struct nfs4_sequence_res seq_res;
+ int status;
+ __u32 return_on_close;
+ struct pnfs_layout_range range;
+ __u32 type;
+ nfs4_stateid stateid;
+ struct nfs4_layoutdriver_data *layoutp;
+};
+
+struct nfs4_layoutget {
+ struct nfs4_layoutget_args args;
+ struct nfs4_layoutget_res res;
+ struct rpc_cred *cred;
+ gfp_t gfp_flags;
+};
+
+struct nfs4_getdeviceinfo_args {
+ struct nfs4_sequence_args seq_args;
+ struct pnfs_device *pdev;
+ __u32 notify_types;
+};
+
+struct nfs4_getdeviceinfo_res {
+ struct nfs4_sequence_res seq_res;
+ struct pnfs_device *pdev;
+ __u32 notification;
+};
+
+struct nfs4_layoutcommit_args {
+ struct nfs4_sequence_args seq_args;
+ nfs4_stateid stateid;
+ __u64 lastbytewritten;
+ struct inode *inode;
+ const u32 *bitmask;
+ size_t layoutupdate_len;
+ struct page *layoutupdate_page;
+ struct page **layoutupdate_pages;
+ __be32 *start_p;
+};
+
+struct nfs4_layoutcommit_res {
+ struct nfs4_sequence_res seq_res;
+ struct nfs_fattr *fattr;
+ const struct nfs_server *server;
+ int status;
+};
+
+struct nfs4_layoutcommit_data {
+ struct rpc_task task;
+ struct nfs_fattr fattr;
+ struct list_head lseg_list;
+ struct rpc_cred *cred;
+ struct inode *inode;
+ struct nfs4_layoutcommit_args args;
+ struct nfs4_layoutcommit_res res;
+};
+
+struct nfs4_layoutreturn_args {
+ struct nfs4_sequence_args seq_args;
+ struct pnfs_layout_hdr *layout;
+ struct inode *inode;
+ struct pnfs_layout_range range;
+ nfs4_stateid stateid;
+ __u32 layout_type;
+ struct nfs4_xdr_opaque_data *ld_private;
+};
+
+struct nfs4_layoutreturn_res {
+ struct nfs4_sequence_res seq_res;
+ u32 lrs_present;
+ nfs4_stateid stateid;
+};
+
+struct nfs4_layoutreturn {
+ struct nfs4_layoutreturn_args args;
+ struct nfs4_layoutreturn_res res;
+ struct rpc_cred *cred;
+ struct nfs_client *clp;
+ struct inode *inode;
+ int rpc_status;
+ struct nfs4_xdr_opaque_data ld_private;
+};
+
+#define PNFS_LAYOUTSTATS_MAXSIZE 256
+
+struct nfs42_layoutstat_args;
+struct nfs42_layoutstat_devinfo;
+typedef void (*layoutstats_encode_t)(struct xdr_stream *,
+ struct nfs42_layoutstat_args *,
+ struct nfs42_layoutstat_devinfo *);
+
+/* Per file per deviceid layoutstats */
+struct nfs42_layoutstat_devinfo {
+ struct nfs4_deviceid dev_id;
+ __u64 offset;
+ __u64 length;
+ __u64 read_count;
+ __u64 read_bytes;
+ __u64 write_count;
+ __u64 write_bytes;
+ __u32 layout_type;
+ struct nfs4_xdr_opaque_data ld_private;
+};
+
+struct nfs42_layoutstat_args {
+ struct nfs4_sequence_args seq_args;
+ struct nfs_fh *fh;
+ struct inode *inode;
+ nfs4_stateid stateid;
+ int num_dev;
+ struct nfs42_layoutstat_devinfo *devinfo;
+};
+
+struct nfs42_layoutstat_res {
+ struct nfs4_sequence_res seq_res;
+ int num_dev;
+ int rpc_status;
+};
+
+struct nfs42_layoutstat_data {
+ struct inode *inode;
+ struct nfs42_layoutstat_args args;
+ struct nfs42_layoutstat_res res;
+};
+
+struct nfs42_clone_args {
+ struct nfs4_sequence_args seq_args;
+ struct nfs_fh *src_fh;
+ struct nfs_fh *dst_fh;
+ nfs4_stateid src_stateid;
+ nfs4_stateid dst_stateid;
+ __u64 src_offset;
+ __u64 dst_offset;
+ __u64 count;
+ const u32 *dst_bitmask;
+};
+
+struct nfs42_clone_res {
+ struct nfs4_sequence_res seq_res;
+ unsigned int rpc_status;
+ struct nfs_fattr *dst_fattr;
+ const struct nfs_server *server;
+};
+
+struct stateowner_id {
+ __u64 create_time;
+ __u32 uniquifier;
+};
+
+/*
+ * Arguments to the open call.
+ */
+struct nfs_openargs {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh * fh;
+ struct nfs_seqid * seqid;
+ int open_flags;
+ fmode_t fmode;
+ u32 share_access;
+ u32 access;
+ __u64 clientid;
+ struct stateowner_id id;
+ union {
+ struct {
+ struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */
+ nfs4_verifier verifier; /* EXCLUSIVE */
+ };
+ nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
+ fmode_t delegation_type; /* CLAIM_PREVIOUS */
+ } u;
+ const struct qstr * name;
+ const struct nfs_server *server; /* Needed for ID mapping */
+ const u32 * bitmask;
+ const u32 * open_bitmap;
+ enum open_claim_type4 claim;
+ enum createmode4 createmode;
+ const struct nfs4_label *label;
+ umode_t umask;
+ struct nfs4_layoutget_args *lg_args;
+};
+
+struct nfs_openres {
+ struct nfs4_sequence_res seq_res;
+ nfs4_stateid stateid;
+ struct nfs_fh fh;
+ struct nfs4_change_info cinfo;
+ __u32 rflags;
+ struct nfs_fattr * f_attr;
+ struct nfs4_label *f_label;
+ struct nfs_seqid * seqid;
+ const struct nfs_server *server;
+ fmode_t delegation_type;
+ nfs4_stateid delegation;
+ unsigned long pagemod_limit;
+ __u32 do_recall;
+ __u32 attrset[NFS4_BITMAP_SIZE];
+ struct nfs4_string *owner;
+ struct nfs4_string *group_owner;
+ __u32 access_request;
+ __u32 access_supported;
+ __u32 access_result;
+ struct nfs4_layoutget_res *lg_res;
+};
+
+/*
+ * Arguments to the open_confirm call.
+ */
+struct nfs_open_confirmargs {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh * fh;
+ nfs4_stateid * stateid;
+ struct nfs_seqid * seqid;
+};
+
+struct nfs_open_confirmres {
+ struct nfs4_sequence_res seq_res;
+ nfs4_stateid stateid;
+ struct nfs_seqid * seqid;
+};
+
+/*
+ * Arguments to the close call.
+ */
+struct nfs_closeargs {
+ struct nfs4_sequence_args seq_args;
+ struct nfs_fh * fh;
+ nfs4_stateid stateid;
+ struct nfs_seqid * seqid;
+ fmode_t fmode;
+ u32 share_access;
+ const u32 * bitmask;
+ struct nfs4_layoutreturn_args *lr_args;
+};
+
+struct nfs_closeres {
+ struct nfs4_sequence_res seq_res;
+ nfs4_stateid stateid;
+ struct nfs_fattr * fattr;
+ struct nfs_seqid * seqid;
+ const struct nfs_server *server;
+ struct nfs4_layoutreturn_res *lr_res;
+ int lr_ret;
+};
+/*
+ * * Arguments to the lock,lockt, and locku call.
+ * */
+struct nfs_lowner {
+ __u64 clientid;
+ __u64 id;
+ dev_t s_dev;
+};
+
+struct nfs_lock_args {
+ struct nfs4_sequence_args seq_args;
+ struct nfs_fh * fh;
+ struct file_lock * fl;
+ struct nfs_seqid * lock_seqid;
+ nfs4_stateid lock_stateid;
+ struct nfs_seqid * open_seqid;
+ nfs4_stateid open_stateid;
+ struct nfs_lowner lock_owner;
+ unsigned char block : 1;
+ unsigned char reclaim : 1;
+ unsigned char new_lock : 1;
+ unsigned char new_lock_owner : 1;
+};
+
+struct nfs_lock_res {
+ struct nfs4_sequence_res seq_res;
+ nfs4_stateid stateid;
+ struct nfs_seqid * lock_seqid;
+ struct nfs_seqid * open_seqid;
+};
+
+struct nfs_locku_args {
+ struct nfs4_sequence_args seq_args;
+ struct nfs_fh * fh;
+ struct file_lock * fl;
+ struct nfs_seqid * seqid;
+ nfs4_stateid stateid;
+};
+
+struct nfs_locku_res {
+ struct nfs4_sequence_res seq_res;
+ nfs4_stateid stateid;
+ struct nfs_seqid * seqid;
+};
+
+struct nfs_lockt_args {
+ struct nfs4_sequence_args seq_args;
+ struct nfs_fh * fh;
+ struct file_lock * fl;
+ struct nfs_lowner lock_owner;
+};
+
+struct nfs_lockt_res {
+ struct nfs4_sequence_res seq_res;
+ struct file_lock * denied; /* LOCK, LOCKT failed */
+};
+
+struct nfs_release_lockowner_args {
+ struct nfs4_sequence_args seq_args;
+ struct nfs_lowner lock_owner;
+};
+
+struct nfs_release_lockowner_res {
+ struct nfs4_sequence_res seq_res;
+};
+
+struct nfs4_delegreturnargs {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh *fhandle;
+ const nfs4_stateid *stateid;
+ const u32 * bitmask;
+ struct nfs4_layoutreturn_args *lr_args;
+};
+
+struct nfs4_delegreturnres {
+ struct nfs4_sequence_res seq_res;
+ struct nfs_fattr * fattr;
+ struct nfs_server *server;
+ struct nfs4_layoutreturn_res *lr_res;
+ int lr_ret;
+};
+
+/*
+ * Arguments to the write call.
+ */
+struct nfs_write_verifier {
+ char data[8];
+};
+
+struct nfs_writeverf {
+ struct nfs_write_verifier verifier;
+ enum nfs3_stable_how committed;
+};
+
+/*
+ * Arguments shared by the read and write call.
+ */
+struct nfs_pgio_args {
+ struct nfs4_sequence_args seq_args;
+ struct nfs_fh * fh;
+ struct nfs_open_context *context;
+ struct nfs_lock_context *lock_context;
+ nfs4_stateid stateid;
+ __u64 offset;
+ __u32 count;
+ unsigned int pgbase;
+ struct page ** pages;
+ const u32 * bitmask; /* used by write */
+ enum nfs3_stable_how stable; /* used by write */
+};
+
+struct nfs_pgio_res {
+ struct nfs4_sequence_res seq_res;
+ struct nfs_fattr * fattr;
+ __u32 count;
+ __u32 op_status;
+ int eof; /* used by read */
+ struct nfs_writeverf * verf; /* used by write */
+ const struct nfs_server *server; /* used by write */
+
+};
+
+/*
+ * Arguments to the commit call.
+ */
+struct nfs_commitargs {
+ struct nfs4_sequence_args seq_args;
+ struct nfs_fh *fh;
+ __u64 offset;
+ __u32 count;
+ const u32 *bitmask;
+};
+
+struct nfs_commitres {
+ struct nfs4_sequence_res seq_res;
+ __u32 op_status;
+ struct nfs_fattr *fattr;
+ struct nfs_writeverf *verf;
+ const struct nfs_server *server;
+};
+
+/*
+ * Common arguments to the unlink call
+ */
+struct nfs_removeargs {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh *fh;
+ struct qstr name;
+};
+
+struct nfs_removeres {
+ struct nfs4_sequence_res seq_res;
+ struct nfs_server *server;
+ struct nfs_fattr *dir_attr;
+ struct nfs4_change_info cinfo;
+};
+
+/*
+ * Common arguments to the rename call
+ */
+struct nfs_renameargs {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh *old_dir;
+ const struct nfs_fh *new_dir;
+ const struct qstr *old_name;
+ const struct qstr *new_name;
+};
+
+struct nfs_renameres {
+ struct nfs4_sequence_res seq_res;
+ struct nfs_server *server;
+ struct nfs4_change_info old_cinfo;
+ struct nfs_fattr *old_fattr;
+ struct nfs4_change_info new_cinfo;
+ struct nfs_fattr *new_fattr;
+};
+
+/* parsed sec= options */
+#define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
+struct nfs_auth_info {
+ unsigned int flavor_len;
+ rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS];
+};
+
+/*
+ * Argument struct for decode_entry function
+ */
+struct nfs_entry {
+ __u64 ino;
+ __u64 cookie,
+ prev_cookie;
+ const char * name;
+ unsigned int len;
+ int eof;
+ struct nfs_fh * fh;
+ struct nfs_fattr * fattr;
+ struct nfs4_label *label;
+ unsigned char d_type;
+ struct nfs_server * server;
+};
+
+/*
+ * The following types are for NFSv2 only.
+ */
+struct nfs_sattrargs {
+ struct nfs_fh * fh;
+ struct iattr * sattr;
+};
+
+struct nfs_diropargs {
+ struct nfs_fh * fh;
+ const char * name;
+ unsigned int len;
+};
+
+struct nfs_createargs {
+ struct nfs_fh * fh;
+ const char * name;
+ unsigned int len;
+ struct iattr * sattr;
+};
+
+struct nfs_setattrargs {
+ struct nfs4_sequence_args seq_args;
+ struct nfs_fh * fh;
+ nfs4_stateid stateid;
+ struct iattr * iap;
+ const struct nfs_server * server; /* Needed for name mapping */
+ const u32 * bitmask;
+ const struct nfs4_label *label;
+};
+
+struct nfs_setaclargs {
+ struct nfs4_sequence_args seq_args;
+ struct nfs_fh * fh;
+ size_t acl_len;
+ struct page ** acl_pages;
+};
+
+struct nfs_setaclres {
+ struct nfs4_sequence_res seq_res;
+};
+
+struct nfs_getaclargs {
+ struct nfs4_sequence_args seq_args;
+ struct nfs_fh * fh;
+ size_t acl_len;
+ struct page ** acl_pages;
+};
+
+/* getxattr ACL interface flags */
+#define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
+struct nfs_getaclres {
+ struct nfs4_sequence_res seq_res;
+ size_t acl_len;
+ size_t acl_data_offset;
+ int acl_flags;
+ struct page * acl_scratch;
+};
+
+struct nfs_setattrres {
+ struct nfs4_sequence_res seq_res;
+ struct nfs_fattr * fattr;
+ struct nfs4_label *label;
+ const struct nfs_server * server;
+};
+
+struct nfs_linkargs {
+ struct nfs_fh * fromfh;
+ struct nfs_fh * tofh;
+ const char * toname;
+ unsigned int tolen;
+};
+
+struct nfs_symlinkargs {
+ struct nfs_fh * fromfh;
+ const char * fromname;
+ unsigned int fromlen;
+ struct page ** pages;
+ unsigned int pathlen;
+ struct iattr * sattr;
+};
+
+struct nfs_readdirargs {
+ struct nfs_fh * fh;
+ __u32 cookie;
+ unsigned int count;
+ struct page ** pages;
+};
+
+struct nfs3_getaclargs {
+ struct nfs_fh * fh;
+ int mask;
+ struct page ** pages;
+};
+
+struct nfs3_setaclargs {
+ struct inode * inode;
+ int mask;
+ struct posix_acl * acl_access;
+ struct posix_acl * acl_default;
+ size_t len;
+ unsigned int npages;
+ struct page ** pages;
+};
+
+struct nfs_diropok {
+ struct nfs_fh * fh;
+ struct nfs_fattr * fattr;
+};
+
+struct nfs_readlinkargs {
+ struct nfs_fh * fh;
+ unsigned int pgbase;
+ unsigned int pglen;
+ struct page ** pages;
+};
+
+struct nfs3_sattrargs {
+ struct nfs_fh * fh;
+ struct iattr * sattr;
+ unsigned int guard;
+ struct timespec guardtime;
+};
+
+struct nfs3_diropargs {
+ struct nfs_fh * fh;
+ const char * name;
+ unsigned int len;
+};
+
+struct nfs3_accessargs {
+ struct nfs_fh * fh;
+ __u32 access;
+};
+
+struct nfs3_createargs {
+ struct nfs_fh * fh;
+ const char * name;
+ unsigned int len;
+ struct iattr * sattr;
+ enum nfs3_createmode createmode;
+ __be32 verifier[2];
+};
+
+struct nfs3_mkdirargs {
+ struct nfs_fh * fh;
+ const char * name;
+ unsigned int len;
+ struct iattr * sattr;
+};
+
+struct nfs3_symlinkargs {
+ struct nfs_fh * fromfh;
+ const char * fromname;
+ unsigned int fromlen;
+ struct page ** pages;
+ unsigned int pathlen;
+ struct iattr * sattr;
+};
+
+struct nfs3_mknodargs {
+ struct nfs_fh * fh;
+ const char * name;
+ unsigned int len;
+ enum nfs3_ftype type;
+ struct iattr * sattr;
+ dev_t rdev;
+};
+
+struct nfs3_linkargs {
+ struct nfs_fh * fromfh;
+ struct nfs_fh * tofh;
+ const char * toname;
+ unsigned int tolen;
+};
+
+struct nfs3_readdirargs {
+ struct nfs_fh * fh;
+ __u64 cookie;
+ __be32 verf[2];
+ bool plus;
+ unsigned int count;
+ struct page ** pages;
+};
+
+struct nfs3_diropres {
+ struct nfs_fattr * dir_attr;
+ struct nfs_fh * fh;
+ struct nfs_fattr * fattr;
+};
+
+struct nfs3_accessres {
+ struct nfs_fattr * fattr;
+ __u32 access;
+};
+
+struct nfs3_readlinkargs {
+ struct nfs_fh * fh;
+ unsigned int pgbase;
+ unsigned int pglen;
+ struct page ** pages;
+};
+
+struct nfs3_linkres {
+ struct nfs_fattr * dir_attr;
+ struct nfs_fattr * fattr;
+};
+
+struct nfs3_readdirres {
+ struct nfs_fattr * dir_attr;
+ __be32 * verf;
+ bool plus;
+};
+
+struct nfs3_getaclres {
+ struct nfs_fattr * fattr;
+ int mask;
+ unsigned int acl_access_count;
+ unsigned int acl_default_count;
+ struct posix_acl * acl_access;
+ struct posix_acl * acl_default;
+};
+
+#if IS_ENABLED(CONFIG_NFS_V4)
+
+typedef u64 clientid4;
+
+struct nfs4_accessargs {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh * fh;
+ const u32 * bitmask;
+ u32 access;
+};
+
+struct nfs4_accessres {
+ struct nfs4_sequence_res seq_res;
+ const struct nfs_server * server;
+ struct nfs_fattr * fattr;
+ u32 supported;
+ u32 access;
+};
+
+struct nfs4_create_arg {
+ struct nfs4_sequence_args seq_args;
+ u32 ftype;
+ union {
+ struct {
+ struct page ** pages;
+ unsigned int len;
+ } symlink; /* NF4LNK */
+ struct {
+ u32 specdata1;
+ u32 specdata2;
+ } device; /* NF4BLK, NF4CHR */
+ } u;
+ const struct qstr * name;
+ const struct nfs_server * server;
+ const struct iattr * attrs;
+ const struct nfs_fh * dir_fh;
+ const u32 * bitmask;
+ const struct nfs4_label *label;
+ umode_t umask;
+};
+
+struct nfs4_create_res {
+ struct nfs4_sequence_res seq_res;
+ const struct nfs_server * server;
+ struct nfs_fh * fh;
+ struct nfs_fattr * fattr;
+ struct nfs4_label *label;
+ struct nfs4_change_info dir_cinfo;
+};
+
+struct nfs4_fsinfo_arg {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh * fh;
+ const u32 * bitmask;
+};
+
+struct nfs4_fsinfo_res {
+ struct nfs4_sequence_res seq_res;
+ struct nfs_fsinfo *fsinfo;
+};
+
+struct nfs4_getattr_arg {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh * fh;
+ const u32 * bitmask;
+};
+
+struct nfs4_getattr_res {
+ struct nfs4_sequence_res seq_res;
+ const struct nfs_server * server;
+ struct nfs_fattr * fattr;
+ struct nfs4_label *label;
+};
+
+struct nfs4_link_arg {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh * fh;
+ const struct nfs_fh * dir_fh;
+ const struct qstr * name;
+ const u32 * bitmask;
+};
+
+struct nfs4_link_res {
+ struct nfs4_sequence_res seq_res;
+ const struct nfs_server * server;
+ struct nfs_fattr * fattr;
+ struct nfs4_label *label;
+ struct nfs4_change_info cinfo;
+ struct nfs_fattr * dir_attr;
+};
+
+struct nfs4_lookup_arg {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh * dir_fh;
+ const struct qstr * name;
+ const u32 * bitmask;
+};
+
+struct nfs4_lookup_res {
+ struct nfs4_sequence_res seq_res;
+ const struct nfs_server * server;
+ struct nfs_fattr * fattr;
+ struct nfs_fh * fh;
+ struct nfs4_label *label;
+};
+
+struct nfs4_lookupp_arg {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh *fh;
+ const u32 *bitmask;
+};
+
+struct nfs4_lookupp_res {
+ struct nfs4_sequence_res seq_res;
+ const struct nfs_server *server;
+ struct nfs_fattr *fattr;
+ struct nfs_fh *fh;
+ struct nfs4_label *label;
+};
+
+struct nfs4_lookup_root_arg {
+ struct nfs4_sequence_args seq_args;
+ const u32 * bitmask;
+};
+
+struct nfs4_pathconf_arg {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh * fh;
+ const u32 * bitmask;
+};
+
+struct nfs4_pathconf_res {
+ struct nfs4_sequence_res seq_res;
+ struct nfs_pathconf *pathconf;
+};
+
+struct nfs4_readdir_arg {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh * fh;
+ u64 cookie;
+ nfs4_verifier verifier;
+ u32 count;
+ struct page ** pages; /* zero-copy data */
+ unsigned int pgbase; /* zero-copy data */
+ const u32 * bitmask;
+ bool plus;
+};
+
+struct nfs4_readdir_res {
+ struct nfs4_sequence_res seq_res;
+ nfs4_verifier verifier;
+ unsigned int pgbase;
+};
+
+struct nfs4_readlink {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh * fh;
+ unsigned int pgbase;
+ unsigned int pglen; /* zero-copy data */
+ struct page ** pages; /* zero-copy data */
+};
+
+struct nfs4_readlink_res {
+ struct nfs4_sequence_res seq_res;
+};
+
+struct nfs4_setclientid {
+ const nfs4_verifier * sc_verifier;
+ u32 sc_prog;
+ unsigned int sc_netid_len;
+ char sc_netid[RPCBIND_MAXNETIDLEN + 1];
+ unsigned int sc_uaddr_len;
+ char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
+ struct nfs_client *sc_clnt;
+ struct rpc_cred *sc_cred;
+};
+
+struct nfs4_setclientid_res {
+ u64 clientid;
+ nfs4_verifier confirm;
+};
+
+struct nfs4_statfs_arg {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh * fh;
+ const u32 * bitmask;
+};
+
+struct nfs4_statfs_res {
+ struct nfs4_sequence_res seq_res;
+ struct nfs_fsstat *fsstat;
+};
+
+struct nfs4_server_caps_arg {
+ struct nfs4_sequence_args seq_args;
+ struct nfs_fh *fhandle;
+ const u32 * bitmask;
+};
+
+struct nfs4_server_caps_res {
+ struct nfs4_sequence_res seq_res;
+ u32 attr_bitmask[3];
+ u32 exclcreat_bitmask[3];
+ u32 acl_bitmask;
+ u32 has_links;
+ u32 has_symlinks;
+ u32 fh_expire_type;
+};
+
+#define NFS4_PATHNAME_MAXCOMPONENTS 512
+struct nfs4_pathname {
+ unsigned int ncomponents;
+ struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
+};
+
+#define NFS4_FS_LOCATION_MAXSERVERS 10
+struct nfs4_fs_location {
+ unsigned int nservers;
+ struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
+ struct nfs4_pathname rootpath;
+};
+
+#define NFS4_FS_LOCATIONS_MAXENTRIES 10
+struct nfs4_fs_locations {
+ struct nfs_fattr fattr;
+ const struct nfs_server *server;
+ struct nfs4_pathname fs_path;
+ int nlocations;
+ struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
+};
+
+struct nfs4_fs_locations_arg {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh *dir_fh;
+ const struct nfs_fh *fh;
+ const struct qstr *name;
+ struct page *page;
+ const u32 *bitmask;
+ clientid4 clientid;
+ unsigned char migration:1, renew:1;
+};
+
+struct nfs4_fs_locations_res {
+ struct nfs4_sequence_res seq_res;
+ struct nfs4_fs_locations *fs_locations;
+ unsigned char migration:1, renew:1;
+};
+
+struct nfs4_secinfo4 {
+ u32 flavor;
+ struct rpcsec_gss_info flavor_info;
+};
+
+struct nfs4_secinfo_flavors {
+ unsigned int num_flavors;
+ struct nfs4_secinfo4 flavors[0];
+};
+
+struct nfs4_secinfo_arg {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh *dir_fh;
+ const struct qstr *name;
+};
+
+struct nfs4_secinfo_res {
+ struct nfs4_sequence_res seq_res;
+ struct nfs4_secinfo_flavors *flavors;
+};
+
+struct nfs4_fsid_present_arg {
+ struct nfs4_sequence_args seq_args;
+ const struct nfs_fh *fh;
+ clientid4 clientid;
+ unsigned char renew:1;
+};
+
+struct nfs4_fsid_present_res {
+ struct nfs4_sequence_res seq_res;
+ struct nfs_fh *fh;
+ unsigned char renew:1;
+};
+
+#endif /* CONFIG_NFS_V4 */
+
+struct nfstime4 {
+ u64 seconds;
+ u32 nseconds;
+};
+
+#ifdef CONFIG_NFS_V4_1
+
+struct pnfs_commit_bucket {
+ struct list_head written;
+ struct list_head committing;
+ struct pnfs_layout_segment *wlseg;
+ struct pnfs_layout_segment *clseg;
+ struct nfs_writeverf direct_verf;
+};
+
+struct pnfs_ds_commit_info {
+ int nwritten;
+ int ncommitting;
+ int nbuckets;
+ struct pnfs_commit_bucket *buckets;
+};
+
+struct nfs41_state_protection {
+ u32 how;
+ struct nfs4_op_map enforce;
+ struct nfs4_op_map allow;
+};
+
+struct nfs41_exchange_id_args {
+ struct nfs_client *client;
+ nfs4_verifier verifier;
+ u32 flags;
+ struct nfs41_state_protection state_protect;
+};
+
+struct nfs41_server_owner {
+ uint64_t minor_id;
+ uint32_t major_id_sz;
+ char major_id[NFS4_OPAQUE_LIMIT];
+};
+
+struct nfs41_server_scope {
+ uint32_t server_scope_sz;
+ char server_scope[NFS4_OPAQUE_LIMIT];
+};
+
+struct nfs41_impl_id {
+ char domain[NFS4_OPAQUE_LIMIT + 1];
+ char name[NFS4_OPAQUE_LIMIT + 1];
+ struct nfstime4 date;
+};
+
+struct nfs41_bind_conn_to_session_args {
+ struct nfs_client *client;
+ struct nfs4_sessionid sessionid;
+ u32 dir;
+ bool use_conn_in_rdma_mode;
+};
+
+struct nfs41_bind_conn_to_session_res {
+ struct nfs4_sessionid sessionid;
+ u32 dir;
+ bool use_conn_in_rdma_mode;
+};
+
+struct nfs41_exchange_id_res {
+ u64 clientid;
+ u32 seqid;
+ u32 flags;
+ struct nfs41_server_owner *server_owner;
+ struct nfs41_server_scope *server_scope;
+ struct nfs41_impl_id *impl_id;
+ struct nfs41_state_protection state_protect;
+};
+
+struct nfs41_create_session_args {
+ struct nfs_client *client;
+ u64 clientid;
+ uint32_t seqid;
+ uint32_t flags;
+ uint32_t cb_program;
+ struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
+ struct nfs4_channel_attrs bc_attrs; /* Back Channel */
+};
+
+struct nfs41_create_session_res {
+ struct nfs4_sessionid sessionid;
+ uint32_t seqid;
+ uint32_t flags;
+ struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
+ struct nfs4_channel_attrs bc_attrs; /* Back Channel */
+};
+
+struct nfs41_reclaim_complete_args {
+ struct nfs4_sequence_args seq_args;
+ /* In the future extend to include curr_fh for use with migration */
+ unsigned char one_fs:1;
+};
+
+struct nfs41_reclaim_complete_res {
+ struct nfs4_sequence_res seq_res;
+};
+
+#define SECINFO_STYLE_CURRENT_FH 0
+#define SECINFO_STYLE_PARENT 1
+struct nfs41_secinfo_no_name_args {
+ struct nfs4_sequence_args seq_args;
+ int style;
+};
+
+struct nfs41_test_stateid_args {
+ struct nfs4_sequence_args seq_args;
+ nfs4_stateid *stateid;
+};
+
+struct nfs41_test_stateid_res {
+ struct nfs4_sequence_res seq_res;
+ unsigned int status;
+};
+
+struct nfs41_free_stateid_args {
+ struct nfs4_sequence_args seq_args;
+ nfs4_stateid stateid;
+};
+
+struct nfs41_free_stateid_res {
+ struct nfs4_sequence_res seq_res;
+ unsigned int status;
+};
+
+static inline void
+nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
+{
+ kfree(cinfo->buckets);
+}
+
+#else
+
+struct pnfs_ds_commit_info {
+};
+
+static inline void
+nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
+{
+}
+
+#endif /* CONFIG_NFS_V4_1 */
+
+#ifdef CONFIG_NFS_V4_2
+struct nfs42_falloc_args {
+ struct nfs4_sequence_args seq_args;
+
+ struct nfs_fh *falloc_fh;
+ nfs4_stateid falloc_stateid;
+ u64 falloc_offset;
+ u64 falloc_length;
+ const u32 *falloc_bitmask;
+};
+
+struct nfs42_falloc_res {
+ struct nfs4_sequence_res seq_res;
+ unsigned int status;
+
+ struct nfs_fattr *falloc_fattr;
+ const struct nfs_server *falloc_server;
+};
+
+struct nfs42_copy_args {
+ struct nfs4_sequence_args seq_args;
+
+ struct nfs_fh *src_fh;
+ nfs4_stateid src_stateid;
+ u64 src_pos;
+
+ struct nfs_fh *dst_fh;
+ nfs4_stateid dst_stateid;
+ u64 dst_pos;
+
+ u64 count;
+ bool sync;
+};
+
+struct nfs42_write_res {
+ nfs4_stateid stateid;
+ u64 count;
+ struct nfs_writeverf verifier;
+};
+
+struct nfs42_copy_res {
+ struct nfs4_sequence_res seq_res;
+ struct nfs42_write_res write_res;
+ bool consecutive;
+ bool synchronous;
+ struct nfs_commitres commit_res;
+};
+
+struct nfs42_offload_status_args {
+ struct nfs4_sequence_args osa_seq_args;
+ struct nfs_fh *osa_src_fh;
+ nfs4_stateid osa_stateid;
+};
+
+struct nfs42_offload_status_res {
+ struct nfs4_sequence_res osr_seq_res;
+ uint64_t osr_count;
+ int osr_status;
+};
+
+struct nfs42_seek_args {
+ struct nfs4_sequence_args seq_args;
+
+ struct nfs_fh *sa_fh;
+ nfs4_stateid sa_stateid;
+ u64 sa_offset;
+ u32 sa_what;
+};
+
+struct nfs42_seek_res {
+ struct nfs4_sequence_res seq_res;
+ unsigned int status;
+
+ u32 sr_eof;
+ u64 sr_offset;
+};
+#endif
+
+struct nfs_page;
+
+#define NFS_PAGEVEC_SIZE (8U)
+
+struct nfs_page_array {
+ struct page **pagevec;
+ unsigned int npages; /* Max length of pagevec */
+ struct page *page_array[NFS_PAGEVEC_SIZE];
+};
+
+/* used as flag bits in nfs_pgio_header */
+enum {
+ NFS_IOHDR_ERROR = 0,
+ NFS_IOHDR_EOF,
+ NFS_IOHDR_REDO,
+ NFS_IOHDR_STAT,
+ NFS_IOHDR_RESEND_PNFS,
+ NFS_IOHDR_RESEND_MDS,
+};
+
+struct nfs_io_completion;
+struct nfs_pgio_header {
+ struct inode *inode;
+ struct rpc_cred *cred;
+ struct list_head pages;
+ struct nfs_page *req;
+ struct nfs_writeverf verf; /* Used for writes */
+ fmode_t rw_mode;
+ struct pnfs_layout_segment *lseg;
+ loff_t io_start;
+ const struct rpc_call_ops *mds_ops;
+ void (*release) (struct nfs_pgio_header *hdr);
+ const struct nfs_pgio_completion_ops *completion_ops;
+ const struct nfs_rw_ops *rw_ops;
+ struct nfs_io_completion *io_completion;
+ struct nfs_direct_req *dreq;
+ spinlock_t lock;
+ /* fields protected by lock */
+ int pnfs_error;
+ int error; /* merge with pnfs_error */
+ unsigned long good_bytes; /* boundary of good data */
+ unsigned long flags;
+
+ /*
+ * rpc data
+ */
+ struct rpc_task task;
+ struct nfs_fattr fattr;
+ struct nfs_pgio_args args; /* argument struct */
+ struct nfs_pgio_res res; /* result struct */
+ unsigned long timestamp; /* For lease renewal */
+ int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *);
+ __u64 mds_offset; /* Filelayout dense stripe */
+ struct nfs_page_array page_array;
+ struct nfs_client *ds_clp; /* pNFS data server */
+ int ds_commit_idx; /* ds index if ds_clp is set */
+ int pgio_mirror_idx;/* mirror index in pgio layer */
+};
+
+struct nfs_mds_commit_info {
+ atomic_t rpcs_out;
+ atomic_long_t ncommit;
+ struct list_head list;
+};
+
+struct nfs_commit_info;
+struct nfs_commit_data;
+struct nfs_inode;
+struct nfs_commit_completion_ops {
+ void (*completion) (struct nfs_commit_data *data);
+ void (*resched_write) (struct nfs_commit_info *, struct nfs_page *);
+};
+
+struct nfs_commit_info {
+ struct inode *inode; /* Needed for inode->i_lock */
+ struct nfs_mds_commit_info *mds;
+ struct pnfs_ds_commit_info *ds;
+ struct nfs_direct_req *dreq; /* O_DIRECT request */
+ const struct nfs_commit_completion_ops *completion_ops;
+};
+
+struct nfs_commit_data {
+ struct rpc_task task;
+ struct inode *inode;
+ struct rpc_cred *cred;
+ struct nfs_fattr fattr;
+ struct nfs_writeverf verf;
+ struct list_head pages; /* Coalesced requests we wish to flush */
+ struct list_head list; /* lists of struct nfs_write_data */
+ struct nfs_direct_req *dreq; /* O_DIRECT request */
+ struct nfs_commitargs args; /* argument struct */
+ struct nfs_commitres res; /* result struct */
+ struct nfs_open_context *context;
+ struct pnfs_layout_segment *lseg;
+ struct nfs_client *ds_clp; /* pNFS data server */
+ int ds_commit_index;
+ loff_t lwb;
+ const struct rpc_call_ops *mds_ops;
+ const struct nfs_commit_completion_ops *completion_ops;
+ int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
+ unsigned long flags;
+};
+
+struct nfs_pgio_completion_ops {
+ void (*error_cleanup)(struct list_head *head);
+ void (*init_hdr)(struct nfs_pgio_header *hdr);
+ void (*completion)(struct nfs_pgio_header *hdr);
+ void (*reschedule_io)(struct nfs_pgio_header *hdr);
+};
+
+struct nfs_unlinkdata {
+ struct nfs_removeargs args;
+ struct nfs_removeres res;
+ struct dentry *dentry;
+ wait_queue_head_t wq;
+ struct rpc_cred *cred;
+ struct nfs_fattr dir_attr;
+ long timeout;
+};
+
+struct nfs_renamedata {
+ struct nfs_renameargs args;
+ struct nfs_renameres res;
+ struct rpc_cred *cred;
+ struct inode *old_dir;
+ struct dentry *old_dentry;
+ struct nfs_fattr old_fattr;
+ struct inode *new_dir;
+ struct dentry *new_dentry;
+ struct nfs_fattr new_fattr;
+ void (*complete)(struct rpc_task *, struct nfs_renamedata *);
+ long timeout;
+ bool cancelled;
+};
+
+struct nfs_access_entry;
+struct nfs_client;
+struct rpc_timeout;
+struct nfs_subversion;
+struct nfs_mount_info;
+struct nfs_client_initdata;
+struct nfs_pageio_descriptor;
+
+/*
+ * RPC procedure vector for NFSv2/NFSv3 demuxing
+ */
+struct nfs_rpc_ops {
+ u32 version; /* Protocol version */
+ const struct dentry_operations *dentry_ops;
+ const struct inode_operations *dir_inode_ops;
+ const struct inode_operations *file_inode_ops;
+ const struct file_operations *file_ops;
+ const struct nlmclnt_operations *nlmclnt_ops;
+
+ int (*getroot) (struct nfs_server *, struct nfs_fh *,
+ struct nfs_fsinfo *);
+ struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
+ struct nfs_fh *, struct nfs_fattr *);
+ struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
+ struct nfs_subversion *);
+ int (*getattr) (struct nfs_server *, struct nfs_fh *,
+ struct nfs_fattr *, struct nfs4_label *,
+ struct inode *);
+ int (*setattr) (struct dentry *, struct nfs_fattr *,
+ struct iattr *);
+ int (*lookup) (struct inode *, const struct qstr *,
+ struct nfs_fh *, struct nfs_fattr *,
+ struct nfs4_label *);
+ int (*lookupp) (struct inode *, struct nfs_fh *,
+ struct nfs_fattr *, struct nfs4_label *);
+ int (*access) (struct inode *, struct nfs_access_entry *);
+ int (*readlink)(struct inode *, struct page *, unsigned int,
+ unsigned int);
+ int (*create) (struct inode *, struct dentry *,
+ struct iattr *, int);
+ int (*remove) (struct inode *, struct dentry *);
+ void (*unlink_setup) (struct rpc_message *, struct dentry *, struct inode *);
+ void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
+ int (*unlink_done) (struct rpc_task *, struct inode *);
+ void (*rename_setup) (struct rpc_message *msg,
+ struct dentry *old_dentry,
+ struct dentry *new_dentry);
+ void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
+ int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
+ int (*link) (struct inode *, struct inode *, const struct qstr *);
+ int (*symlink) (struct inode *, struct dentry *, struct page *,
+ unsigned int, struct iattr *);
+ int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
+ int (*rmdir) (struct inode *, const struct qstr *);
+ int (*readdir) (struct dentry *, struct rpc_cred *,
+ u64, struct page **, unsigned int, bool);
+ int (*mknod) (struct inode *, struct dentry *, struct iattr *,
+ dev_t);
+ int (*statfs) (struct nfs_server *, struct nfs_fh *,
+ struct nfs_fsstat *);
+ int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
+ struct nfs_fsinfo *);
+ int (*pathconf) (struct nfs_server *, struct nfs_fh *,
+ struct nfs_pathconf *);
+ int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
+ int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, bool);
+ int (*pgio_rpc_prepare)(struct rpc_task *,
+ struct nfs_pgio_header *);
+ void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *);
+ int (*read_done)(struct rpc_task *, struct nfs_pgio_header *);
+ void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *,
+ struct rpc_clnt **);
+ int (*write_done)(struct rpc_task *, struct nfs_pgio_header *);
+ void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *,
+ struct rpc_clnt **);
+ void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
+ int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
+ int (*lock)(struct file *, int, struct file_lock *);
+ int (*lock_check_bounds)(const struct file_lock *);
+ void (*clear_acl_cache)(struct inode *);
+ void (*close_context)(struct nfs_open_context *ctx, int);
+ struct inode * (*open_context) (struct inode *dir,
+ struct nfs_open_context *ctx,
+ int open_flags,
+ struct iattr *iattr,
+ int *);
+ int (*have_delegation)(struct inode *, fmode_t);
+ struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
+ struct nfs_client *(*init_client) (struct nfs_client *,
+ const struct nfs_client_initdata *);
+ void (*free_client) (struct nfs_client *);
+ struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
+ struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
+ struct nfs_fattr *, rpc_authflavor_t);
+};
+
+/*
+ * NFS_CALL(getattr, inode, (fattr));
+ * into
+ * NFS_PROTO(inode)->getattr(fattr);
+ */
+#define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
+
+/*
+ * Function vectors etc. for the NFS client
+ */
+extern const struct nfs_rpc_ops nfs_v2_clientops;
+extern const struct nfs_rpc_ops nfs_v3_clientops;
+extern const struct nfs_rpc_ops nfs_v4_clientops;
+extern const struct rpc_version nfs_version2;
+extern const struct rpc_version nfs_version3;
+extern const struct rpc_version nfs_version4;
+
+extern const struct rpc_version nfsacl_version3;
+extern const struct rpc_program nfsacl_program;
+
+#endif