platform:alarmtimer )ˆÄÅ „i—ÝsÿÇ?÷)/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_NFS_XDR_H #define _LINUX_NFS_XDR_H #include #include /* * 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) #define NFS_BITMASK_SZ 3 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 { __u64 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 timespec64 atime; struct timespec64 mtime; struct timespec64 ctime; struct timespec64 btime; __u64 change_attr; /* NFSv4 change attribute */ __u64 pre_change_attr;/* pre-op NFSv4 change attribute */ __u64 pre_size; /* pre_op_attr.size */ struct timespec64 pre_mtime; /* pre_op_attr.mtime */ struct timespec64 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 */ struct nfs4_label *label; }; #define NFS_ATTR_FATTR_TYPE BIT_ULL(0) #define NFS_ATTR_FATTR_MODE BIT_ULL(1) #define NFS_ATTR_FATTR_NLINK BIT_ULL(2) #define NFS_ATTR_FATTR_OWNER BIT_ULL(3) #define NFS_ATTR_FATTR_GROUP BIT_ULL(4) #define NFS_ATTR_FATTR_RDEV BIT_ULL(5) #define NFS_ATTR_FATTR_SIZE BIT_ULL(6) #define NFS_ATTR_FATTR_PRESIZE BIT_ULL(7) #define NFS_ATTR_FATTR_BLOCKS_USED BIT_ULL(8) #define NFS_ATTR_FATTR_SPACE_USED BIT_ULL(9) #define NFS_ATTR_FATTR_FSID BIT_ULL(10) #define NFS_ATTR_FATTR_FILEID BIT_ULL(11) #define NFS_ATTR_FATTR_ATIME BIT_ULL(12) #define NFS_ATTR_FATTR_MTIME BIT_ULL(13) #define NFS_ATTR_FATTR_CTIME BIT_ULL(14) #define NFS_ATTR_FATTR_PREMTIME BIT_ULL(15) #define NFS_ATTR_FATTR_PRECTIME BIT_ULL(16) #define NFS_ATTR_FATTR_CHANGE BIT_ULL(17) #define NFS_ATTR_FATTR_PRECHANGE BIT_ULL(18) #define NFS_ATTR_FATTR_V4_LOCATIONS BIT_ULL(19) #define NFS_ATTR_FATTR_V4_REFERRAL BIT_ULL(20) #define NFS_ATTR_FATTR_MOUNTPOINT BIT_ULL(21) #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID BIT_ULL(22) #define NFS_ATTR_FATTR_OWNER_NAME BIT_ULL(23) #define NFS_ATTR_FATTR_GROUP_NAME BIT_ULL(24) #define NFS_ATTR_FATTR_V4_SECURITY_LABEL BIT_ULL(25) #define NFS_ATTR_FATTR_BTIME BIT_ULL(26) #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_BTIME \ | 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