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1efb473f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | /* | |
22 | * Copyright (c) 2011, Lawrence Livermore National Security, LLC. | |
23 | */ | |
24 | ||
25 | #ifndef _SYS_ZPL_H | |
26 | #define _SYS_ZPL_H | |
27 | ||
28 | #include <sys/vfs.h> | |
7268e1be | 29 | #include <linux/vfs_compat.h> |
777d4af8 | 30 | #include <linux/xattr_compat.h> |
7b3e34ba | 31 | #include <linux/dcache_compat.h> |
055656d4 | 32 | #include <linux/exportfs.h> |
dde471ef | 33 | #include <linux/writeback.h> |
cb2d1901 | 34 | #include <linux/falloc.h> |
e3dc14b8 | 35 | #include <linux/task_io_accounting_ops.h> |
1efb473f BB |
36 | |
37 | /* zpl_inode.c */ | |
ebe7e575 | 38 | extern void zpl_vap_init(vattr_t *vap, struct inode *dir, |
7b3e34ba | 39 | zpl_umode_t mode, cred_t *cr); |
ebe7e575 | 40 | |
1efb473f BB |
41 | extern const struct inode_operations zpl_inode_operations; |
42 | extern const struct inode_operations zpl_dir_inode_operations; | |
43 | extern const struct inode_operations zpl_symlink_inode_operations; | |
44 | extern const struct inode_operations zpl_special_inode_operations; | |
7b3e34ba | 45 | extern dentry_operations_t zpl_dentry_operations; |
1efb473f BB |
46 | |
47 | /* zpl_file.c */ | |
48 | extern ssize_t zpl_read_common(struct inode *ip, const char *buf, | |
49 | size_t len, loff_t pos, uio_seg_t segment, int flags, cred_t *cr); | |
50 | extern ssize_t zpl_write_common(struct inode *ip, const char *buf, | |
51 | size_t len, loff_t pos, uio_seg_t segment, int flags, cred_t *cr); | |
cb2d1901 ED |
52 | extern long zpl_fallocate_common(struct inode *ip, int mode, |
53 | loff_t offset, loff_t len); | |
1efb473f BB |
54 | |
55 | extern const struct address_space_operations zpl_address_space_operations; | |
56 | extern const struct file_operations zpl_file_operations; | |
57 | extern const struct file_operations zpl_dir_file_operations; | |
58 | ||
59 | /* zpl_super.c */ | |
ab26409d BB |
60 | extern void zpl_prune_sbs(int64_t bytes_to_scan, void *private); |
61 | ||
1efb473f BB |
62 | typedef struct zpl_mount_data { |
63 | const char *z_osname; /* Dataset name */ | |
64 | void *z_data; /* Mount options string */ | |
1efb473f BB |
65 | } zpl_mount_data_t; |
66 | ||
67 | extern const struct super_operations zpl_super_operations; | |
055656d4 | 68 | extern const struct export_operations zpl_export_operations; |
1efb473f BB |
69 | extern struct file_system_type zpl_fs_type; |
70 | ||
71 | /* zpl_xattr.c */ | |
72 | extern ssize_t zpl_xattr_list(struct dentry *dentry, char *buf, size_t size); | |
5c03efc3 BB |
73 | extern int zpl_xattr_security_init(struct inode *ip, struct inode *dip, |
74 | const struct qstr *qstr); | |
b695c34e | 75 | #if defined(CONFIG_FS_POSIX_ACL) |
023699cd MM |
76 | extern int zpl_set_acl(struct inode *ip, int type, struct posix_acl *acl); |
77 | extern struct posix_acl *zpl_get_acl(struct inode *ip, int type); | |
78 | #if !defined(HAVE_GET_ACL) | |
79 | #if defined(HAVE_CHECK_ACL_WITH_FLAGS) | |
d1d7e268 | 80 | extern int zpl_check_acl(struct inode *inode, int mask, unsigned int flags); |
023699cd MM |
81 | #elif defined(HAVE_CHECK_ACL) |
82 | extern int zpl_check_acl(struct inode *inode, int mask); | |
83 | #elif defined(HAVE_PERMISSION_WITH_NAMEIDATA) | |
84 | extern int zpl_permission(struct inode *ip, int mask, struct nameidata *nd); | |
85 | #elif defined(HAVE_PERMISSION) | |
86 | extern int zpl_permission(struct inode *ip, int mask); | |
87 | #endif /* HAVE_CHECK_ACL | HAVE_PERMISSION */ | |
88 | #endif /* HAVE_GET_ACL */ | |
89 | ||
90 | extern int zpl_init_acl(struct inode *ip, struct inode *dir); | |
91 | extern int zpl_chmod_acl(struct inode *ip); | |
b695c34e MM |
92 | #else |
93 | static inline int | |
94 | zpl_init_acl(struct inode *ip, struct inode *dir) | |
95 | { | |
96 | return (0); | |
97 | } | |
98 | ||
99 | static inline int | |
100 | zpl_chmod_acl(struct inode *ip) | |
101 | { | |
102 | return (0); | |
103 | } | |
104 | #endif /* CONFIG_FS_POSIX_ACL */ | |
1efb473f | 105 | |
777d4af8 | 106 | extern xattr_handler_t *zpl_xattr_handlers[]; |
1efb473f | 107 | |
ebe7e575 BB |
108 | /* zpl_ctldir.c */ |
109 | extern const struct file_operations zpl_fops_root; | |
110 | extern const struct inode_operations zpl_ops_root; | |
111 | ||
112 | extern const struct file_operations zpl_fops_snapdir; | |
113 | extern const struct inode_operations zpl_ops_snapdir; | |
114 | #ifdef HAVE_AUTOMOUNT | |
115 | extern const struct dentry_operations zpl_dops_snapdirs; | |
116 | #else | |
117 | extern const struct inode_operations zpl_ops_snapdirs; | |
118 | #endif /* HAVE_AUTOMOUNT */ | |
119 | ||
120 | extern const struct file_operations zpl_fops_shares; | |
121 | extern const struct inode_operations zpl_ops_shares; | |
122 | ||
0f37d0c8 RY |
123 | #ifdef HAVE_VFS_ITERATE |
124 | ||
d1d7e268 | 125 | #define DIR_CONTEXT_INIT(_dirent, _actor, _pos) { \ |
0f37d0c8 RY |
126 | .actor = _actor, \ |
127 | .pos = _pos, \ | |
128 | } | |
129 | ||
130 | #else | |
131 | ||
132 | typedef struct dir_context { | |
133 | void *dirent; | |
134 | const filldir_t actor; | |
135 | loff_t pos; | |
136 | } dir_context_t; | |
137 | ||
d1d7e268 | 138 | #define DIR_CONTEXT_INIT(_dirent, _actor, _pos) { \ |
0f37d0c8 RY |
139 | .dirent = _dirent, \ |
140 | .actor = _actor, \ | |
141 | .pos = _pos, \ | |
142 | } | |
143 | ||
144 | static inline bool | |
145 | dir_emit(struct dir_context *ctx, const char *name, int namelen, | |
146 | uint64_t ino, unsigned type) | |
147 | { | |
d1d7e268 MK |
148 | return (ctx->actor(ctx->dirent, name, namelen, ctx->pos, ino, type) |
149 | == 0); | |
0f37d0c8 RY |
150 | } |
151 | ||
152 | static inline bool | |
153 | dir_emit_dot(struct file *file, struct dir_context *ctx) | |
154 | { | |
d1d7e268 MK |
155 | return (ctx->actor(ctx->dirent, ".", 1, ctx->pos, |
156 | file->f_path.dentry->d_inode->i_ino, DT_DIR) == 0); | |
0f37d0c8 RY |
157 | } |
158 | ||
159 | static inline bool | |
160 | dir_emit_dotdot(struct file *file, struct dir_context *ctx) | |
161 | { | |
d1d7e268 MK |
162 | return (ctx->actor(ctx->dirent, "..", 2, ctx->pos, |
163 | parent_ino(file->f_path.dentry), DT_DIR) == 0); | |
0f37d0c8 RY |
164 | } |
165 | ||
166 | static inline bool | |
167 | dir_emit_dots(struct file *file, struct dir_context *ctx) | |
168 | { | |
169 | if (ctx->pos == 0) { | |
170 | if (!dir_emit_dot(file, ctx)) | |
d1d7e268 | 171 | return (false); |
0f37d0c8 RY |
172 | ctx->pos = 1; |
173 | } | |
174 | if (ctx->pos == 1) { | |
175 | if (!dir_emit_dotdot(file, ctx)) | |
d1d7e268 | 176 | return (false); |
0f37d0c8 RY |
177 | ctx->pos = 2; |
178 | } | |
d1d7e268 | 179 | return (true); |
0f37d0c8 RY |
180 | } |
181 | #endif /* HAVE_VFS_ITERATE */ | |
182 | ||
1efb473f | 183 | #endif /* _SYS_ZPL_H */ |