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777d4af8 BB |
1 | dnl # |
2 | dnl # 2.6.35 API change, | |
3 | dnl # The 'struct xattr_handler' was constified in the generic | |
4 | dnl # super_block structure. | |
5 | dnl # | |
6 | AC_DEFUN([ZFS_AC_KERNEL_CONST_XATTR_HANDLER], | |
7 | [AC_MSG_CHECKING([whether super_block uses const struct xattr_hander]) | |
8 | ZFS_LINUX_TRY_COMPILE([ | |
9 | #include <linux/fs.h> | |
10 | #include <linux/xattr.h> | |
11 | ||
12 | const struct xattr_handler xattr_test_handler = { | |
13 | .prefix = "test", | |
14 | .get = NULL, | |
15 | .set = NULL, | |
16 | }; | |
17 | ||
18 | const struct xattr_handler *xattr_handlers[] = { | |
19 | &xattr_test_handler, | |
20 | }; | |
777d4af8 | 21 | |
b83e3e48 RY |
22 | const struct super_block sb __attribute__ ((unused)) = { |
23 | .s_xattr = xattr_handlers, | |
24 | }; | |
25 | ],[ | |
777d4af8 BB |
26 | ],[ |
27 | AC_MSG_RESULT([yes]) | |
28 | AC_DEFINE(HAVE_CONST_XATTR_HANDLER, 1, | |
29 | [super_block uses const struct xattr_hander]) | |
30 | ],[ | |
31 | AC_MSG_RESULT([no]) | |
32 | ]) | |
33 | ]) | |
f9637c6c BB |
34 | |
35 | dnl # | |
36 | dnl # 2.6.33 API change, | |
37 | dnl # The xattr_hander->get() callback was changed to take a dentry | |
38 | dnl # instead of an inode, and a handler_flags argument was added. | |
39 | dnl # | |
61d482f7 CC |
40 | dnl # 4.4 API change, |
41 | dnl # The xattr_hander->get() callback was changed to take a xattr_handler, | |
42 | dnl # and handler_flags argument was removed and should be accessed by | |
43 | dnl # handler->flags. | |
44 | dnl # | |
f9637c6c BB |
45 | AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_GET], [ |
46 | AC_MSG_CHECKING([whether xattr_handler->get() wants dentry]) | |
47 | ZFS_LINUX_TRY_COMPILE([ | |
48 | #include <linux/xattr.h> | |
f9637c6c | 49 | |
b83e3e48 RY |
50 | int get(struct dentry *dentry, const char *name, |
51 | void *buffer, size_t size, int handler_flags) { return 0; } | |
52 | static const struct xattr_handler | |
53 | xops __attribute__ ((unused)) = { | |
54 | .get = get, | |
55 | }; | |
56 | ],[ | |
f9637c6c BB |
57 | ],[ |
58 | AC_MSG_RESULT(yes) | |
59 | AC_DEFINE(HAVE_DENTRY_XATTR_GET, 1, | |
60 | [xattr_handler->get() wants dentry]) | |
61 | ],[ | |
62 | AC_MSG_RESULT(no) | |
61d482f7 CC |
63 | AC_MSG_CHECKING([whether xattr_handler->get() wants xattr_handler]) |
64 | ZFS_LINUX_TRY_COMPILE([ | |
65 | #include <linux/xattr.h> | |
66 | ||
67 | int get(const struct xattr_handler *handler, struct dentry *dentry, | |
68 | const char *name, void *buffer, size_t size) { return 0; } | |
69 | static const struct xattr_handler | |
70 | xops __attribute__ ((unused)) = { | |
71 | .get = get, | |
72 | }; | |
73 | ],[ | |
74 | ],[ | |
75 | AC_MSG_RESULT(yes) | |
76 | AC_DEFINE(HAVE_HANDLER_XATTR_GET, 1, | |
77 | [xattr_handler->get() wants xattr_handler]) | |
78 | ],[ | |
79 | AC_MSG_RESULT(no) | |
80 | ]) | |
f9637c6c BB |
81 | ]) |
82 | ]) | |
83 | ||
84 | dnl # | |
85 | dnl # 2.6.33 API change, | |
86 | dnl # The xattr_hander->set() callback was changed to take a dentry | |
87 | dnl # instead of an inode, and a handler_flags argument was added. | |
88 | dnl # | |
61d482f7 CC |
89 | dnl # 4.4 API change, |
90 | dnl # The xattr_hander->set() callback was changed to take a xattr_handler, | |
91 | dnl # and handler_flags argument was removed and should be accessed by | |
92 | dnl # handler->flags. | |
93 | dnl # | |
f9637c6c BB |
94 | AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_SET], [ |
95 | AC_MSG_CHECKING([whether xattr_handler->set() wants dentry]) | |
96 | ZFS_LINUX_TRY_COMPILE([ | |
97 | #include <linux/xattr.h> | |
f9637c6c | 98 | |
b83e3e48 RY |
99 | int set(struct dentry *dentry, const char *name, |
100 | const void *buffer, size_t size, int flags, | |
101 | int handler_flags) { return 0; } | |
102 | static const struct xattr_handler | |
103 | xops __attribute__ ((unused)) = { | |
104 | .set = set, | |
105 | }; | |
106 | ],[ | |
f9637c6c BB |
107 | ],[ |
108 | AC_MSG_RESULT(yes) | |
109 | AC_DEFINE(HAVE_DENTRY_XATTR_SET, 1, | |
110 | [xattr_handler->set() wants dentry]) | |
111 | ],[ | |
112 | AC_MSG_RESULT(no) | |
61d482f7 CC |
113 | AC_MSG_CHECKING([whether xattr_handler->set() wants xattr_handler]) |
114 | ZFS_LINUX_TRY_COMPILE([ | |
115 | #include <linux/xattr.h> | |
116 | ||
117 | int set(const struct xattr_handler *handler, struct dentry *dentry, | |
118 | const char *name, const void *buffer, size_t size, int flags) { return 0; } | |
119 | static const struct xattr_handler | |
120 | xops __attribute__ ((unused)) = { | |
121 | .set = set, | |
122 | }; | |
123 | ],[ | |
124 | ],[ | |
125 | AC_MSG_RESULT(yes) | |
126 | AC_DEFINE(HAVE_HANDLER_XATTR_SET, 1, | |
127 | [xattr_handler->set() wants xattr_handler]) | |
128 | ],[ | |
129 | AC_MSG_RESULT(no) | |
130 | ]) | |
f9637c6c BB |
131 | ]) |
132 | ]) | |
023699cd MM |
133 | |
134 | dnl # | |
135 | dnl # 2.6.33 API change, | |
136 | dnl # The xattr_hander->list() callback was changed to take a dentry | |
137 | dnl # instead of an inode, and a handler_flags argument was added. | |
138 | dnl # | |
61d482f7 CC |
139 | dnl # 4.4 API change, |
140 | dnl # The xattr_hander->list() callback was changed to take a xattr_handler, | |
141 | dnl # and handler_flags argument was removed and should be accessed by | |
142 | dnl # handler->flags. | |
143 | dnl # | |
023699cd MM |
144 | AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_LIST], [ |
145 | AC_MSG_CHECKING([whether xattr_handler->list() wants dentry]) | |
146 | ZFS_LINUX_TRY_COMPILE([ | |
147 | #include <linux/xattr.h> | |
148 | ||
149 | size_t list(struct dentry *dentry, char *list, size_t list_size, | |
150 | const char *name, size_t name_len, int handler_flags) | |
151 | { return 0; } | |
152 | static const struct xattr_handler | |
153 | xops __attribute__ ((unused)) = { | |
154 | .list = list, | |
155 | }; | |
156 | ],[ | |
157 | ],[ | |
158 | AC_MSG_RESULT(yes) | |
159 | AC_DEFINE(HAVE_DENTRY_XATTR_LIST, 1, | |
160 | [xattr_handler->list() wants dentry]) | |
161 | ],[ | |
162 | AC_MSG_RESULT(no) | |
61d482f7 CC |
163 | AC_MSG_CHECKING([whether xattr_handler->list() wants xattr_handler]) |
164 | ZFS_LINUX_TRY_COMPILE([ | |
165 | #include <linux/xattr.h> | |
166 | ||
167 | size_t list(const struct xattr_handler *handler, struct dentry *dentry, | |
168 | char *list, size_t list_size, const char *name, size_t name_len) { return 0; } | |
169 | static const struct xattr_handler | |
170 | xops __attribute__ ((unused)) = { | |
171 | .list = list, | |
172 | }; | |
173 | ],[ | |
174 | ],[ | |
175 | AC_MSG_RESULT(yes) | |
176 | AC_DEFINE(HAVE_HANDLER_XATTR_LIST, 1, | |
177 | [xattr_handler->list() wants xattr_handler]) | |
178 | ],[ | |
179 | AC_MSG_RESULT(no) | |
180 | ]) | |
023699cd MM |
181 | ]) |
182 | ]) | |
183 | ||
184 | dnl # | |
185 | dnl # 3.7 API change, | |
186 | dnl # The posix_acl_{from,to}_xattr functions gained a new | |
187 | dnl # parameter: user_ns | |
188 | dnl # | |
189 | AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_FROM_XATTR_USERNS], [ | |
190 | AC_MSG_CHECKING([whether posix_acl_from_xattr() needs user_ns]) | |
191 | ZFS_LINUX_TRY_COMPILE([ | |
192 | #include <linux/cred.h> | |
193 | #include <linux/fs.h> | |
194 | #include <linux/posix_acl_xattr.h> | |
195 | ],[ | |
196 | posix_acl_from_xattr(&init_user_ns, NULL, 0); | |
197 | ],[ | |
198 | AC_MSG_RESULT(yes) | |
199 | AC_DEFINE(HAVE_POSIX_ACL_FROM_XATTR_USERNS, 1, | |
200 | [posix_acl_from_xattr() needs user_ns]) | |
201 | ],[ | |
202 | AC_MSG_RESULT(no) | |
203 | ]) | |
204 | ]) | |
205 |