/* * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. * Copyright (C) 2007 The Regents of the University of California. * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). * Written by Brian Behlendorf . * UCRL-CODE-235197 * * This file is part of the SPL, Solaris Porting Layer. * For details, see . * * The SPL is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * The SPL is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. * * You should have received a copy of the GNU General Public License along * with the SPL. If not, see . */ #ifndef _SPL_VNODE_H #define _SPL_VNODE_H #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* * Prior to linux-2.6.33 only O_DSYNC semantics were implemented and * they used the O_SYNC flag. As of linux-2.6.33 the this behavior * was properly split in to O_SYNC and O_DSYNC respectively. */ #ifndef O_DSYNC #define O_DSYNC O_SYNC #endif #define FREAD 1 #define FWRITE 2 #define FCREAT O_CREAT #define FTRUNC O_TRUNC #define FOFFMAX O_LARGEFILE #define FSYNC O_SYNC #define FDSYNC O_DSYNC #define FRSYNC O_SYNC #define FEXCL O_EXCL #define FDIRECT O_DIRECT #define FAPPEND O_APPEND #define FNODSYNC 0x10000 /* fsync pseudo flag */ #define FNOFOLLOW 0x20000 /* don't follow symlinks */ #define F_FREESP 11 /* Free file space */ /* * The vnode AT_ flags are mapped to the Linux ATTR_* flags. * This allows them to be used safely with an iattr structure. * The AT_XVATTR flag has been added and mapped to the upper * bit range to avoid conflicting with the standard Linux set. */ #undef AT_UID #undef AT_GID #define AT_MODE ATTR_MODE #define AT_UID ATTR_UID #define AT_GID ATTR_GID #define AT_SIZE ATTR_SIZE #define AT_ATIME ATTR_ATIME #define AT_MTIME ATTR_MTIME #define AT_CTIME ATTR_CTIME #define ATTR_XVATTR (1U << 31) #define AT_XVATTR ATTR_XVATTR #define ATTR_IATTR_MASK (ATTR_MODE | ATTR_UID | ATTR_GID | ATTR_SIZE | \ ATTR_ATIME | ATTR_MTIME | ATTR_CTIME | ATTR_FILE) #define CRCREAT 0x01 #define RMFILE 0x02 #define B_INVAL 0x01 #define B_TRUNC 0x02 #define LOOKUP_DIR 0x01 #define LOOKUP_XATTR 0x02 #define CREATE_XATTR_DIR 0x04 #define ATTR_NOACLCHECK 0x20 typedef enum vtype { VNON = 0, VREG = 1, VDIR = 2, VBLK = 3, VCHR = 4, VLNK = 5, VFIFO = 6, VDOOR = 7, VPROC = 8, VSOCK = 9, VPORT = 10, VBAD = 11 } vtype_t; typedef struct vattr { enum vtype va_type; /* vnode type */ uint32_t va_mask; /* attribute bit-mask */ ushort_t va_mode; /* acc mode */ uid_t va_uid; /* owner uid */ gid_t va_gid; /* owner gid */ long va_fsid; /* fs id */ long va_nodeid; /* node # */ uint32_t va_nlink; /* # links */ uint64_t va_size; /* file size */ struct timespec va_atime; /* last acc */ struct timespec va_mtime; /* last mod */ struct timespec va_ctime; /* last chg */ dev_t va_rdev; /* dev */ uint64_t va_nblocks; /* space used */ uint32_t va_blksize; /* block size */ uint32_t va_seq; /* sequence */ struct dentry *va_dentry; /* dentry to wire */ } vattr_t; typedef struct vnode { struct file *v_file; kmutex_t v_lock; /* protects vnode fields */ uint_t v_flag; /* vnode flags (see below) */ uint_t v_count; /* reference count */ void *v_data; /* private data for fs */ struct vfs *v_vfsp; /* ptr to containing VFS */ struct stdata *v_stream; /* associated stream */ enum vtype v_type; /* vnode type */ dev_t v_rdev; /* device (VCHR, VBLK) */ gfp_t v_gfp_mask; /* original mapping gfp mask */ } vnode_t; typedef struct vn_file { int f_fd; /* linux fd for lookup */ struct task_struct *f_task; /* linux task this fd belongs to */ struct file *f_file; /* linux file struct */ atomic_t f_ref; /* ref count */ kmutex_t f_lock; /* struct lock */ loff_t f_offset; /* offset */ vnode_t *f_vnode; /* vnode */ struct list_head f_list; /* list referenced file_t's */ } file_t; extern vnode_t *vn_alloc(int flag); void vn_free(vnode_t *vp); extern vtype_t vn_mode_to_vtype(mode_t); extern mode_t vn_vtype_to_mode(vtype_t); extern int vn_open(const char *path, uio_seg_t seg, int flags, int mode, vnode_t **vpp, int x1, void *x2); extern int vn_openat(const char *path, uio_seg_t seg, int flags, int mode, vnode_t **vpp, int x1, void *x2, vnode_t *vp, int fd); extern int vn_rdwr(uio_rw_t uio, vnode_t *vp, void *addr, ssize_t len, offset_t off, uio_seg_t seg, int x1, rlim64_t x2, void *x3, ssize_t *residp); extern int vn_close(vnode_t *vp, int flags, int x1, int x2, void *x3, void *x4); extern int vn_seek(vnode_t *vp, offset_t o, offset_t *op, void *ct); extern int vn_getattr(vnode_t *vp, vattr_t *vap, int flags, void *x3, void *x4); extern int vn_fsync(vnode_t *vp, int flags, void *x3, void *x4); extern int vn_space(vnode_t *vp, int cmd, struct flock *bfp, int flag, offset_t offset, void *x6, void *x7); extern file_t *vn_getf(int fd); extern void vn_releasef(int fd); extern void vn_areleasef(int fd, uf_info_t *fip); extern int vn_set_pwd(const char *filename); int spl_vn_init(void); void spl_vn_fini(void); #define VOP_CLOSE vn_close #define VOP_SEEK vn_seek #define VOP_GETATTR vn_getattr #define VOP_FSYNC vn_fsync #define VOP_SPACE vn_space #define VOP_PUTPAGE(vp, o, s, f, x1, x2) ((void)0) #define vn_is_readonly(vp) 0 #define getf vn_getf #define releasef vn_releasef #define areleasef vn_areleasef extern vnode_t *rootdir; #endif /* SPL_VNODE_H */