forked from mirrors/linux
737 lines
16 KiB
C
737 lines
16 KiB
C
#ifndef _LINUX_NFS_XDR_H
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#define _LINUX_NFS_XDR_H
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#include <linux/sunrpc/xprt.h>
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struct nfs4_fsid {
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__u64 major;
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__u64 minor;
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};
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struct nfs_fattr {
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unsigned short valid; /* which fields are valid */
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__u64 pre_size; /* pre_op_attr.size */
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struct timespec pre_mtime; /* pre_op_attr.mtime */
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struct timespec pre_ctime; /* pre_op_attr.ctime */
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enum nfs_ftype type; /* always use NFSv2 types */
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__u32 mode;
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__u32 nlink;
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__u32 uid;
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__u32 gid;
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__u64 size;
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union {
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struct {
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__u32 blocksize;
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__u32 blocks;
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} nfs2;
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struct {
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__u64 used;
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} nfs3;
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} du;
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dev_t rdev;
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union {
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__u64 nfs3; /* also nfs2 */
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struct nfs4_fsid nfs4;
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} fsid_u;
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__u64 fileid;
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struct timespec atime;
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struct timespec mtime;
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struct timespec ctime;
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__u32 bitmap[2]; /* NFSv4 returned attribute bitmap */
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__u64 change_attr; /* NFSv4 change attribute */
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__u64 pre_change_attr;/* pre-op NFSv4 change attribute */
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unsigned long timestamp;
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};
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#define NFS_ATTR_WCC 0x0001 /* pre-op WCC data */
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#define NFS_ATTR_FATTR 0x0002 /* post-op attributes */
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#define NFS_ATTR_FATTR_V3 0x0004 /* NFSv3 attributes */
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#define NFS_ATTR_FATTR_V4 0x0008
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#define NFS_ATTR_PRE_CHANGE 0x0010
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/*
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* Info on the file system
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*/
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struct nfs_fsinfo {
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struct nfs_fattr *fattr; /* Post-op attributes */
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__u32 rtmax; /* max. read transfer size */
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__u32 rtpref; /* pref. read transfer size */
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__u32 rtmult; /* reads should be multiple of this */
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__u32 wtmax; /* max. write transfer size */
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__u32 wtpref; /* pref. write transfer size */
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__u32 wtmult; /* writes should be multiple of this */
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__u32 dtpref; /* pref. readdir transfer size */
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__u64 maxfilesize;
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__u32 lease_time; /* in seconds */
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};
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struct nfs_fsstat {
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struct nfs_fattr *fattr; /* Post-op attributes */
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__u64 tbytes; /* total size in bytes */
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__u64 fbytes; /* # of free bytes */
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__u64 abytes; /* # of bytes available to user */
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__u64 tfiles; /* # of files */
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__u64 ffiles; /* # of free files */
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__u64 afiles; /* # of files available to user */
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};
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struct nfs2_fsstat {
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__u32 tsize; /* Server transfer size */
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__u32 bsize; /* Filesystem block size */
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__u32 blocks; /* No. of "bsize" blocks on filesystem */
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__u32 bfree; /* No. of free "bsize" blocks */
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__u32 bavail; /* No. of available "bsize" blocks */
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};
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struct nfs_pathconf {
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struct nfs_fattr *fattr; /* Post-op attributes */
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__u32 max_link; /* max # of hard links */
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__u32 max_namelen; /* max name length */
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};
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struct nfs4_change_info {
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u32 atomic;
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u64 before;
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u64 after;
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};
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/*
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* Arguments to the open call.
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*/
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struct nfs_openargs {
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const struct nfs_fh * fh;
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__u32 seqid;
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int open_flags;
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__u64 clientid;
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__u32 id;
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union {
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struct iattr * attrs; /* UNCHECKED, GUARDED */
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nfs4_verifier verifier; /* EXCLUSIVE */
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nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
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int delegation_type; /* CLAIM_PREVIOUS */
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} u;
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const struct qstr * name;
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const struct nfs_server *server; /* Needed for ID mapping */
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const u32 * bitmask;
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__u32 claim;
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};
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struct nfs_openres {
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nfs4_stateid stateid;
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struct nfs_fh fh;
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struct nfs4_change_info cinfo;
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__u32 rflags;
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struct nfs_fattr * f_attr;
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const struct nfs_server *server;
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int delegation_type;
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nfs4_stateid delegation;
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__u32 do_recall;
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__u64 maxsize;
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};
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/*
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* Arguments to the open_confirm call.
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*/
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struct nfs_open_confirmargs {
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const struct nfs_fh * fh;
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nfs4_stateid stateid;
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__u32 seqid;
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};
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struct nfs_open_confirmres {
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nfs4_stateid stateid;
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};
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/*
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* Arguments to the close call.
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*/
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struct nfs_closeargs {
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struct nfs_fh * fh;
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nfs4_stateid stateid;
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__u32 seqid;
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int open_flags;
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};
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struct nfs_closeres {
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nfs4_stateid stateid;
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};
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/*
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* * Arguments to the lock,lockt, and locku call.
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* */
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struct nfs_lowner {
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__u64 clientid;
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u32 id;
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};
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struct nfs_open_to_lock {
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__u32 open_seqid;
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nfs4_stateid open_stateid;
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__u32 lock_seqid;
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struct nfs_lowner lock_owner;
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};
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struct nfs_exist_lock {
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nfs4_stateid stateid;
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__u32 seqid;
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};
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struct nfs_lock_opargs {
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__u32 reclaim;
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__u32 new_lock_owner;
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union {
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struct nfs_open_to_lock *open_lock;
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struct nfs_exist_lock *exist_lock;
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} u;
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};
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struct nfs_locku_opargs {
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__u32 seqid;
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nfs4_stateid stateid;
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};
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struct nfs_lockargs {
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struct nfs_fh * fh;
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__u32 type;
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__u64 offset;
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__u64 length;
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union {
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struct nfs_lock_opargs *lock; /* LOCK */
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struct nfs_lowner *lockt; /* LOCKT */
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struct nfs_locku_opargs *locku; /* LOCKU */
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} u;
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};
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struct nfs_lock_denied {
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__u64 offset;
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__u64 length;
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__u32 type;
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struct nfs_lowner owner;
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};
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struct nfs_lockres {
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union {
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nfs4_stateid stateid;/* LOCK success, LOCKU */
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struct nfs_lock_denied denied; /* LOCK failed, LOCKT success */
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} u;
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const struct nfs_server * server;
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};
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struct nfs4_delegreturnargs {
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const struct nfs_fh *fhandle;
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const nfs4_stateid *stateid;
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};
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/*
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* Arguments to the read call.
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*/
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#define NFS_READ_MAXIOV (9U)
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#if (NFS_READ_MAXIOV > (MAX_IOVEC -2))
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#error "NFS_READ_MAXIOV is too large"
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#endif
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struct nfs_readargs {
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struct nfs_fh * fh;
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struct nfs_open_context *context;
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__u64 offset;
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__u32 count;
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unsigned int pgbase;
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struct page ** pages;
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};
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struct nfs_readres {
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struct nfs_fattr * fattr;
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__u32 count;
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int eof;
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};
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/*
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* Arguments to the write call.
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*/
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#define NFS_WRITE_MAXIOV (9U)
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#if (NFS_WRITE_MAXIOV > (MAX_IOVEC -2))
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#error "NFS_WRITE_MAXIOV is too large"
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#endif
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struct nfs_writeargs {
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struct nfs_fh * fh;
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struct nfs_open_context *context;
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__u64 offset;
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__u32 count;
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enum nfs3_stable_how stable;
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unsigned int pgbase;
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struct page ** pages;
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};
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struct nfs_writeverf {
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enum nfs3_stable_how committed;
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__u32 verifier[2];
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};
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struct nfs_writeres {
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struct nfs_fattr * fattr;
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struct nfs_writeverf * verf;
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__u32 count;
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};
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/*
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* Argument struct for decode_entry function
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*/
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struct nfs_entry {
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__u64 ino;
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__u64 cookie,
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prev_cookie;
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const char * name;
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unsigned int len;
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int eof;
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struct nfs_fh * fh;
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struct nfs_fattr * fattr;
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};
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/*
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* The following types are for NFSv2 only.
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*/
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struct nfs_sattrargs {
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struct nfs_fh * fh;
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struct iattr * sattr;
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};
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struct nfs_diropargs {
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struct nfs_fh * fh;
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const char * name;
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unsigned int len;
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};
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struct nfs_createargs {
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struct nfs_fh * fh;
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const char * name;
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unsigned int len;
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struct iattr * sattr;
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};
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struct nfs_renameargs {
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struct nfs_fh * fromfh;
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const char * fromname;
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unsigned int fromlen;
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struct nfs_fh * tofh;
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const char * toname;
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unsigned int tolen;
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};
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struct nfs_setattrargs {
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struct nfs_fh * fh;
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nfs4_stateid stateid;
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struct iattr * iap;
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const struct nfs_server * server; /* Needed for name mapping */
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const u32 * bitmask;
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};
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struct nfs_setattrres {
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struct nfs_fattr * fattr;
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const struct nfs_server * server;
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};
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struct nfs_linkargs {
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struct nfs_fh * fromfh;
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struct nfs_fh * tofh;
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const char * toname;
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unsigned int tolen;
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};
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struct nfs_symlinkargs {
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struct nfs_fh * fromfh;
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const char * fromname;
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unsigned int fromlen;
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const char * topath;
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unsigned int tolen;
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struct iattr * sattr;
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};
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struct nfs_readdirargs {
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struct nfs_fh * fh;
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__u32 cookie;
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unsigned int count;
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struct page ** pages;
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};
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struct nfs_diropok {
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struct nfs_fh * fh;
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struct nfs_fattr * fattr;
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};
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struct nfs_readlinkargs {
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struct nfs_fh * fh;
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unsigned int pgbase;
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unsigned int pglen;
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struct page ** pages;
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};
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struct nfs3_sattrargs {
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struct nfs_fh * fh;
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struct iattr * sattr;
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unsigned int guard;
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struct timespec guardtime;
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};
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struct nfs3_diropargs {
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struct nfs_fh * fh;
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const char * name;
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unsigned int len;
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};
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struct nfs3_accessargs {
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struct nfs_fh * fh;
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__u32 access;
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};
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struct nfs3_createargs {
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struct nfs_fh * fh;
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const char * name;
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unsigned int len;
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struct iattr * sattr;
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enum nfs3_createmode createmode;
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__u32 verifier[2];
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};
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struct nfs3_mkdirargs {
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struct nfs_fh * fh;
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const char * name;
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unsigned int len;
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struct iattr * sattr;
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};
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struct nfs3_symlinkargs {
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struct nfs_fh * fromfh;
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const char * fromname;
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unsigned int fromlen;
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const char * topath;
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unsigned int tolen;
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struct iattr * sattr;
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};
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struct nfs3_mknodargs {
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struct nfs_fh * fh;
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const char * name;
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unsigned int len;
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enum nfs3_ftype type;
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struct iattr * sattr;
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dev_t rdev;
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};
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struct nfs3_renameargs {
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struct nfs_fh * fromfh;
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const char * fromname;
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unsigned int fromlen;
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struct nfs_fh * tofh;
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const char * toname;
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unsigned int tolen;
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};
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struct nfs3_linkargs {
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struct nfs_fh * fromfh;
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struct nfs_fh * tofh;
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const char * toname;
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unsigned int tolen;
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};
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struct nfs3_readdirargs {
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struct nfs_fh * fh;
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__u64 cookie;
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__u32 verf[2];
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int plus;
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unsigned int count;
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struct page ** pages;
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};
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struct nfs3_diropres {
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struct nfs_fattr * dir_attr;
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struct nfs_fh * fh;
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struct nfs_fattr * fattr;
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};
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struct nfs3_accessres {
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struct nfs_fattr * fattr;
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__u32 access;
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};
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struct nfs3_readlinkargs {
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struct nfs_fh * fh;
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unsigned int pgbase;
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unsigned int pglen;
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struct page ** pages;
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};
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struct nfs3_renameres {
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struct nfs_fattr * fromattr;
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struct nfs_fattr * toattr;
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};
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struct nfs3_linkres {
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struct nfs_fattr * dir_attr;
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struct nfs_fattr * fattr;
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};
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struct nfs3_readdirres {
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struct nfs_fattr * dir_attr;
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__u32 * verf;
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int plus;
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};
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#ifdef CONFIG_NFS_V4
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typedef u64 clientid4;
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struct nfs4_accessargs {
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const struct nfs_fh * fh;
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u32 access;
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};
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struct nfs4_accessres {
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u32 supported;
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u32 access;
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};
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struct nfs4_create_arg {
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u32 ftype;
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union {
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struct qstr * symlink; /* NF4LNK */
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struct {
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u32 specdata1;
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u32 specdata2;
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} device; /* NF4BLK, NF4CHR */
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} u;
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const struct qstr * name;
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const struct nfs_server * server;
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const struct iattr * attrs;
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const struct nfs_fh * dir_fh;
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const u32 * bitmask;
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};
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struct nfs4_create_res {
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const struct nfs_server * server;
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struct nfs_fh * fh;
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struct nfs_fattr * fattr;
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struct nfs4_change_info dir_cinfo;
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};
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struct nfs4_fsinfo_arg {
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const struct nfs_fh * fh;
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const u32 * bitmask;
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};
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struct nfs4_getattr_arg {
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const struct nfs_fh * fh;
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const u32 * bitmask;
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};
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struct nfs4_getattr_res {
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const struct nfs_server * server;
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struct nfs_fattr * fattr;
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};
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struct nfs4_link_arg {
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const struct nfs_fh * fh;
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const struct nfs_fh * dir_fh;
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const struct qstr * name;
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};
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struct nfs4_lookup_arg {
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const struct nfs_fh * dir_fh;
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const struct qstr * name;
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const u32 * bitmask;
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};
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struct nfs4_lookup_res {
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const struct nfs_server * server;
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struct nfs_fattr * fattr;
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struct nfs_fh * fh;
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};
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struct nfs4_lookup_root_arg {
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const u32 * bitmask;
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};
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struct nfs4_pathconf_arg {
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const struct nfs_fh * fh;
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const u32 * bitmask;
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};
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struct nfs4_readdir_arg {
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const struct nfs_fh * fh;
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u64 cookie;
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nfs4_verifier verifier;
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u32 count;
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struct page ** pages; /* zero-copy data */
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unsigned int pgbase; /* zero-copy data */
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const u32 * bitmask;
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};
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struct nfs4_readdir_res {
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nfs4_verifier verifier;
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unsigned int pgbase;
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};
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struct nfs4_readlink {
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const struct nfs_fh * fh;
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unsigned int pgbase;
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unsigned int pglen; /* zero-copy data */
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struct page ** pages; /* zero-copy data */
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};
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struct nfs4_remove_arg {
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const struct nfs_fh * fh;
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const struct qstr * name;
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};
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struct nfs4_rename_arg {
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const struct nfs_fh * old_dir;
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|
const struct nfs_fh * new_dir;
|
|
const struct qstr * old_name;
|
|
const struct qstr * new_name;
|
|
};
|
|
|
|
struct nfs4_rename_res {
|
|
struct nfs4_change_info old_cinfo;
|
|
struct nfs4_change_info new_cinfo;
|
|
};
|
|
|
|
struct nfs4_setclientid {
|
|
const nfs4_verifier * sc_verifier; /* request */
|
|
unsigned int sc_name_len;
|
|
char sc_name[32]; /* request */
|
|
u32 sc_prog; /* request */
|
|
unsigned int sc_netid_len;
|
|
char sc_netid[4]; /* request */
|
|
unsigned int sc_uaddr_len;
|
|
char sc_uaddr[24]; /* request */
|
|
u32 sc_cb_ident; /* request */
|
|
};
|
|
|
|
struct nfs4_statfs_arg {
|
|
const struct nfs_fh * fh;
|
|
const u32 * bitmask;
|
|
};
|
|
|
|
struct nfs4_server_caps_res {
|
|
u32 attr_bitmask[2];
|
|
u32 acl_bitmask;
|
|
u32 has_links;
|
|
u32 has_symlinks;
|
|
};
|
|
|
|
#endif /* CONFIG_NFS_V4 */
|
|
|
|
struct nfs_page;
|
|
|
|
struct nfs_read_data {
|
|
int flags;
|
|
struct rpc_task task;
|
|
struct inode *inode;
|
|
struct rpc_cred *cred;
|
|
struct nfs_fattr fattr; /* fattr storage */
|
|
struct list_head pages; /* Coalesced read requests */
|
|
struct nfs_page *req; /* multi ops per nfs_page */
|
|
struct page *pagevec[NFS_READ_MAXIOV];
|
|
struct nfs_readargs args;
|
|
struct nfs_readres res;
|
|
#ifdef CONFIG_NFS_V4
|
|
unsigned long timestamp; /* For lease renewal */
|
|
#endif
|
|
void (*complete) (struct nfs_read_data *, int);
|
|
};
|
|
|
|
struct nfs_write_data {
|
|
int flags;
|
|
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 nfs_page *req; /* multi ops per nfs_page */
|
|
struct page *pagevec[NFS_WRITE_MAXIOV];
|
|
struct nfs_writeargs args; /* argument struct */
|
|
struct nfs_writeres res; /* result struct */
|
|
#ifdef CONFIG_NFS_V4
|
|
unsigned long timestamp; /* For lease renewal */
|
|
#endif
|
|
void (*complete) (struct nfs_write_data *, int);
|
|
};
|
|
|
|
struct nfs_access_entry;
|
|
|
|
/*
|
|
* RPC procedure vector for NFSv2/NFSv3 demuxing
|
|
*/
|
|
struct nfs_rpc_ops {
|
|
int version; /* Protocol version */
|
|
struct dentry_operations *dentry_ops;
|
|
struct inode_operations *dir_inode_ops;
|
|
struct inode_operations *file_inode_ops;
|
|
|
|
int (*getroot) (struct nfs_server *, struct nfs_fh *,
|
|
struct nfs_fsinfo *);
|
|
int (*getattr) (struct nfs_server *, struct nfs_fh *,
|
|
struct nfs_fattr *);
|
|
int (*setattr) (struct dentry *, struct nfs_fattr *,
|
|
struct iattr *);
|
|
int (*lookup) (struct inode *, struct qstr *,
|
|
struct nfs_fh *, struct nfs_fattr *);
|
|
int (*access) (struct inode *, struct nfs_access_entry *);
|
|
int (*readlink)(struct inode *, struct page *, unsigned int,
|
|
unsigned int);
|
|
int (*read) (struct nfs_read_data *);
|
|
int (*write) (struct nfs_write_data *);
|
|
int (*commit) (struct nfs_write_data *);
|
|
int (*create) (struct inode *, struct dentry *,
|
|
struct iattr *, int);
|
|
int (*remove) (struct inode *, struct qstr *);
|
|
int (*unlink_setup) (struct rpc_message *,
|
|
struct dentry *, struct qstr *);
|
|
int (*unlink_done) (struct dentry *, struct rpc_task *);
|
|
int (*rename) (struct inode *, struct qstr *,
|
|
struct inode *, struct qstr *);
|
|
int (*link) (struct inode *, struct inode *, struct qstr *);
|
|
int (*symlink) (struct inode *, struct qstr *, struct qstr *,
|
|
struct iattr *, struct nfs_fh *,
|
|
struct nfs_fattr *);
|
|
int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
|
|
int (*rmdir) (struct inode *, struct qstr *);
|
|
int (*readdir) (struct dentry *, struct rpc_cred *,
|
|
u64, struct page *, unsigned int, int);
|
|
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 *);
|
|
u32 * (*decode_dirent)(u32 *, struct nfs_entry *, int plus);
|
|
void (*read_setup) (struct nfs_read_data *);
|
|
void (*write_setup) (struct nfs_write_data *, int how);
|
|
void (*commit_setup) (struct nfs_write_data *, int how);
|
|
int (*file_open) (struct inode *, struct file *);
|
|
int (*file_release) (struct inode *, struct file *);
|
|
int (*lock)(struct file *, int, struct file_lock *);
|
|
void (*clear_acl_cache)(struct inode *);
|
|
};
|
|
|
|
/*
|
|
* 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 struct nfs_rpc_ops nfs_v2_clientops;
|
|
extern struct nfs_rpc_ops nfs_v3_clientops;
|
|
extern struct nfs_rpc_ops nfs_v4_clientops;
|
|
extern struct rpc_version nfs_version2;
|
|
extern struct rpc_version nfs_version3;
|
|
extern struct rpc_version nfs_version4;
|
|
|
|
#endif
|