1dnl # 2dnl # Check if posix_acl_release can be used from a ZFS_META_LICENSED 3dnl # module. The is_owner_or_cap macro was replaced by 4dnl # inode_owner_or_capable 5dnl # 6AC_DEFUN([ZFS_AC_KERNEL_SRC_POSIX_ACL_RELEASE], [ 7 ZFS_LINUX_TEST_SRC([posix_acl_release], [ 8 #include <linux/cred.h> 9 #include <linux/fs.h> 10 #include <linux/posix_acl.h> 11 ], [ 12 struct posix_acl *tmp = posix_acl_alloc(1, 0); 13 posix_acl_release(tmp); 14 ], [], [ZFS_META_LICENSE]) 15]) 16 17AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_RELEASE], [ 18 AC_MSG_CHECKING([whether posix_acl_release() is available]) 19 ZFS_LINUX_TEST_RESULT([posix_acl_release], [ 20 AC_MSG_RESULT(yes) 21 AC_DEFINE(HAVE_POSIX_ACL_RELEASE, 1, 22 [posix_acl_release() is available]) 23 24 AC_MSG_CHECKING([whether posix_acl_release() is GPL-only]) 25 ZFS_LINUX_TEST_RESULT([posix_acl_release_license], [ 26 AC_MSG_RESULT(no) 27 ],[ 28 AC_MSG_RESULT(yes) 29 AC_DEFINE(HAVE_POSIX_ACL_RELEASE_GPL_ONLY, 1, 30 [posix_acl_release() is GPL-only]) 31 ]) 32 ],[ 33 AC_MSG_RESULT(no) 34 ]) 35]) 36 37dnl # 38dnl # 3.14 API change, 39dnl # set_cached_acl() and forget_cached_acl() changed from inline to 40dnl # EXPORT_SYMBOL. In the former case, they may not be usable because of 41dnl # posix_acl_release. In the latter case, we can always use them. 42dnl # 43AC_DEFUN([ZFS_AC_KERNEL_SRC_SET_CACHED_ACL_USABLE], [ 44 ZFS_LINUX_TEST_SRC([set_cached_acl], [ 45 #include <linux/cred.h> 46 #include <linux/fs.h> 47 #include <linux/posix_acl.h> 48 ], [ 49 struct inode *ip = NULL; 50 struct posix_acl *acl = posix_acl_alloc(1, 0); 51 set_cached_acl(ip, ACL_TYPE_ACCESS, acl); 52 forget_cached_acl(ip, ACL_TYPE_ACCESS); 53 ], [], [ZFS_META_LICENSE]) 54]) 55 56AC_DEFUN([ZFS_AC_KERNEL_SET_CACHED_ACL_USABLE], [ 57 AC_MSG_CHECKING([whether set_cached_acl() is usable]) 58 ZFS_LINUX_TEST_RESULT([set_cached_acl_license], [ 59 AC_MSG_RESULT(yes) 60 AC_DEFINE(HAVE_SET_CACHED_ACL_USABLE, 1, 61 [set_cached_acl() is usable]) 62 ],[ 63 AC_MSG_RESULT(no) 64 ]) 65]) 66 67dnl # 68dnl # 3.1 API change, 69dnl # posix_acl_chmod() was added as the preferred interface. 70dnl # 71dnl # 3.14 API change, 72dnl # posix_acl_chmod() was changed to __posix_acl_chmod() 73dnl # 74AC_DEFUN([ZFS_AC_KERNEL_SRC_POSIX_ACL_CHMOD], [ 75 ZFS_LINUX_TEST_SRC([posix_acl_chmod], [ 76 #include <linux/fs.h> 77 #include <linux/posix_acl.h> 78 ],[ 79 posix_acl_chmod(NULL, 0, 0) 80 ]) 81 82 ZFS_LINUX_TEST_SRC([__posix_acl_chmod], [ 83 #include <linux/fs.h> 84 #include <linux/posix_acl.h> 85 ],[ 86 __posix_acl_chmod(NULL, 0, 0) 87 ]) 88]) 89 90AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_CHMOD], [ 91 AC_MSG_CHECKING([whether __posix_acl_chmod exists]) 92 ZFS_LINUX_TEST_RESULT([__posix_acl_chmod], [ 93 AC_MSG_RESULT(yes) 94 AC_DEFINE(HAVE___POSIX_ACL_CHMOD, 1, 95 [__posix_acl_chmod() exists]) 96 ],[ 97 AC_MSG_RESULT(no) 98 99 AC_MSG_CHECKING([whether posix_acl_chmod exists]) 100 ZFS_LINUX_TEST_RESULT([posix_acl_chmod], [ 101 AC_MSG_RESULT(yes) 102 AC_DEFINE(HAVE_POSIX_ACL_CHMOD, 1, 103 [posix_acl_chmod() exists]) 104 ],[ 105 ZFS_LINUX_TEST_ERROR([posix_acl_chmod()]) 106 ]) 107 ]) 108]) 109 110dnl # 111dnl # 3.1 API change, 112dnl # posix_acl_equiv_mode now wants an umode_t instead of a mode_t 113dnl # 114AC_DEFUN([ZFS_AC_KERNEL_SRC_POSIX_ACL_EQUIV_MODE_WANTS_UMODE_T], [ 115 ZFS_LINUX_TEST_SRC([posix_acl_equiv_mode], [ 116 #include <linux/fs.h> 117 #include <linux/posix_acl.h> 118 ],[ 119 umode_t tmp; 120 posix_acl_equiv_mode(NULL, &tmp); 121 ]) 122]) 123 124AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_EQUIV_MODE_WANTS_UMODE_T], [ 125 AC_MSG_CHECKING([whether posix_acl_equiv_mode() wants umode_t]) 126 ZFS_LINUX_TEST_RESULT([posix_acl_equiv_mode], [ 127 AC_MSG_RESULT(yes) 128 ],[ 129 ZFS_LINUX_TEST_ERROR([posix_acl_equiv_mode()]) 130 ]) 131]) 132 133dnl # 134dnl # 4.8 API change, 135dnl # The function posix_acl_valid now must be passed a namespace. 136dnl # 137AC_DEFUN([ZFS_AC_KERNEL_SRC_POSIX_ACL_VALID_WITH_NS], [ 138 ZFS_LINUX_TEST_SRC([posix_acl_valid_with_ns], [ 139 #include <linux/fs.h> 140 #include <linux/posix_acl.h> 141 ],[ 142 struct user_namespace *user_ns = NULL; 143 const struct posix_acl *acl = NULL; 144 int error; 145 146 error = posix_acl_valid(user_ns, acl); 147 ]) 148]) 149 150AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_VALID_WITH_NS], [ 151 AC_MSG_CHECKING([whether posix_acl_valid() wants user namespace]) 152 ZFS_LINUX_TEST_RESULT([posix_acl_valid_with_ns], [ 153 AC_MSG_RESULT(yes) 154 AC_DEFINE(HAVE_POSIX_ACL_VALID_WITH_NS, 1, 155 [posix_acl_valid() wants user namespace]) 156 ],[ 157 AC_MSG_RESULT(no) 158 ]) 159]) 160 161dnl # 162dnl # 3.1 API change, 163dnl # Check if inode_operations contains the function get_acl 164dnl # 165dnl # 5.15 API change, 166dnl # Added the bool rcu argument to get_acl for rcu path walk. 167dnl # 168dnl # 6.2 API change, 169dnl # get_acl() was renamed to get_inode_acl() 170dnl # 171AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_GET_ACL], [ 172 ZFS_LINUX_TEST_SRC([inode_operations_get_acl], [ 173 #include <linux/fs.h> 174 175 struct posix_acl *get_acl_fn(struct inode *inode, int type) 176 { return NULL; } 177 178 static const struct inode_operations 179 iops __attribute__ ((unused)) = { 180 .get_acl = get_acl_fn, 181 }; 182 ],[]) 183 184 ZFS_LINUX_TEST_SRC([inode_operations_get_acl_rcu], [ 185 #include <linux/fs.h> 186 187 struct posix_acl *get_acl_fn(struct inode *inode, int type, 188 bool rcu) { return NULL; } 189 190 static const struct inode_operations 191 iops __attribute__ ((unused)) = { 192 .get_acl = get_acl_fn, 193 }; 194 ],[]) 195 196 ZFS_LINUX_TEST_SRC([inode_operations_get_inode_acl], [ 197 #include <linux/fs.h> 198 199 struct posix_acl *get_inode_acl_fn(struct inode *inode, int type, 200 bool rcu) { return NULL; } 201 202 static const struct inode_operations 203 iops __attribute__ ((unused)) = { 204 .get_inode_acl = get_inode_acl_fn, 205 }; 206 ],[]) 207]) 208 209AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_GET_ACL], [ 210 AC_MSG_CHECKING([whether iops->get_acl() exists]) 211 ZFS_LINUX_TEST_RESULT([inode_operations_get_acl], [ 212 AC_MSG_RESULT(yes) 213 AC_DEFINE(HAVE_GET_ACL, 1, [iops->get_acl() exists]) 214 ],[ 215 ZFS_LINUX_TEST_RESULT([inode_operations_get_acl_rcu], [ 216 AC_MSG_RESULT(yes) 217 AC_DEFINE(HAVE_GET_ACL_RCU, 1, [iops->get_acl() takes rcu]) 218 ],[ 219 ZFS_LINUX_TEST_RESULT([inode_operations_get_inode_acl], [ 220 AC_MSG_RESULT(yes) 221 AC_DEFINE(HAVE_GET_INODE_ACL, 1, [has iops->get_inode_acl()]) 222 ],[ 223 ZFS_LINUX_TEST_ERROR([iops->get_acl() or iops->get_inode_acl()]) 224 ]) 225 ]) 226 ]) 227]) 228 229dnl # 230dnl # 3.14 API change, 231dnl # Check if inode_operations contains the function set_acl 232dnl # 233dnl # 5.12 API change, 234dnl # set_acl() added a user_namespace* parameter first 235dnl # 236dnl # 6.2 API change, 237dnl # set_acl() second paramter changed to a struct dentry * 238dnl # 239dnl # 6.3 API change, 240dnl # set_acl() first parameter changed to struct mnt_idmap * 241dnl # 242AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_SET_ACL], [ 243 ZFS_LINUX_TEST_SRC([inode_operations_set_acl_mnt_idmap_dentry], [ 244 #include <linux/fs.h> 245 246 int set_acl_fn(struct mnt_idmap *idmap, 247 struct dentry *dent, struct posix_acl *acl, 248 int type) { return 0; } 249 250 static const struct inode_operations 251 iops __attribute__ ((unused)) = { 252 .set_acl = set_acl_fn, 253 }; 254 ],[]) 255 ZFS_LINUX_TEST_SRC([inode_operations_set_acl_userns_dentry], [ 256 #include <linux/fs.h> 257 258 int set_acl_fn(struct user_namespace *userns, 259 struct dentry *dent, struct posix_acl *acl, 260 int type) { return 0; } 261 262 static const struct inode_operations 263 iops __attribute__ ((unused)) = { 264 .set_acl = set_acl_fn, 265 }; 266 ],[]) 267 ZFS_LINUX_TEST_SRC([inode_operations_set_acl_userns], [ 268 #include <linux/fs.h> 269 270 int set_acl_fn(struct user_namespace *userns, 271 struct inode *inode, struct posix_acl *acl, 272 int type) { return 0; } 273 274 static const struct inode_operations 275 iops __attribute__ ((unused)) = { 276 .set_acl = set_acl_fn, 277 }; 278 ],[]) 279 ZFS_LINUX_TEST_SRC([inode_operations_set_acl], [ 280 #include <linux/fs.h> 281 282 int set_acl_fn(struct inode *inode, struct posix_acl *acl, 283 int type) { return 0; } 284 285 static const struct inode_operations 286 iops __attribute__ ((unused)) = { 287 .set_acl = set_acl_fn, 288 }; 289 ],[]) 290]) 291 292AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_SET_ACL], [ 293 AC_MSG_CHECKING([whether iops->set_acl() exists]) 294 ZFS_LINUX_TEST_RESULT([inode_operations_set_acl_userns], [ 295 AC_MSG_RESULT(yes) 296 AC_DEFINE(HAVE_SET_ACL, 1, [iops->set_acl() exists]) 297 AC_DEFINE(HAVE_SET_ACL_USERNS, 1, [iops->set_acl() takes 4 args]) 298 ],[ 299 ZFS_LINUX_TEST_RESULT([inode_operations_set_acl_mnt_idmap_dentry], [ 300 AC_MSG_RESULT(yes) 301 AC_DEFINE(HAVE_SET_ACL, 1, [iops->set_acl() exists]) 302 AC_DEFINE(HAVE_SET_ACL_IDMAP_DENTRY, 1, 303 [iops->set_acl() takes 4 args, arg1 is struct mnt_idmap *]) 304 ],[ 305 ZFS_LINUX_TEST_RESULT([inode_operations_set_acl_userns_dentry], [ 306 AC_MSG_RESULT(yes) 307 AC_DEFINE(HAVE_SET_ACL, 1, [iops->set_acl() exists]) 308 AC_DEFINE(HAVE_SET_ACL_USERNS_DENTRY_ARG2, 1, 309 [iops->set_acl() takes 4 args, arg2 is struct dentry *]) 310 ],[ 311 ZFS_LINUX_TEST_RESULT([inode_operations_set_acl], [ 312 AC_MSG_RESULT(yes) 313 AC_DEFINE(HAVE_SET_ACL, 1, [iops->set_acl() exists, takes 3 args]) 314 ],[ 315 ZFS_LINUX_REQUIRE_API([i_op->set_acl()], [3.14]) 316 ]) 317 ]) 318 ]) 319 ]) 320]) 321 322dnl # 323dnl # 4.7 API change, 324dnl # The kernel get_acl will now check cache before calling i_op->get_acl and 325dnl # do set_cached_acl after that, so i_op->get_acl don't need to do that 326dnl # anymore. 327dnl # 328AC_DEFUN([ZFS_AC_KERNEL_SRC_GET_ACL_HANDLE_CACHE], [ 329 ZFS_LINUX_TEST_SRC([get_acl_handle_cache], [ 330 #include <linux/fs.h> 331 ],[ 332 void *sentinel __attribute__ ((unused)) = 333 uncached_acl_sentinel(NULL); 334 ]) 335]) 336 337AC_DEFUN([ZFS_AC_KERNEL_GET_ACL_HANDLE_CACHE], [ 338 AC_MSG_CHECKING([whether uncached_acl_sentinel() exists]) 339 ZFS_LINUX_TEST_RESULT([get_acl_handle_cache], [ 340 AC_MSG_RESULT(yes) 341 AC_DEFINE(HAVE_KERNEL_GET_ACL_HANDLE_CACHE, 1, 342 [uncached_acl_sentinel() exists]) 343 ],[ 344 AC_MSG_RESULT(no) 345 ]) 346]) 347 348dnl # 349dnl # 4.16 kernel: check if struct posix_acl acl.a_refcount is a refcount_t. 350dnl # It's an atomic_t on older kernels. 351dnl # 352AC_DEFUN([ZFS_AC_KERNEL_SRC_ACL_HAS_REFCOUNT], [ 353 ZFS_LINUX_TEST_SRC([acl_refcount], [ 354 #include <linux/backing-dev.h> 355 #include <linux/refcount.h> 356 #include <linux/posix_acl.h> 357 ],[ 358 struct posix_acl acl; 359 refcount_t *r __attribute__ ((unused)) = &acl.a_refcount; 360 ]) 361]) 362 363AC_DEFUN([ZFS_AC_KERNEL_ACL_HAS_REFCOUNT], [ 364 AC_MSG_CHECKING([whether posix_acl has refcount_t]) 365 ZFS_LINUX_TEST_RESULT([acl_refcount], [ 366 AC_MSG_RESULT(yes) 367 AC_DEFINE(HAVE_ACL_REFCOUNT, 1, [posix_acl has refcount_t]) 368 ],[ 369 AC_MSG_RESULT(no) 370 ]) 371]) 372 373AC_DEFUN([ZFS_AC_KERNEL_SRC_ACL], [ 374 ZFS_AC_KERNEL_SRC_POSIX_ACL_RELEASE 375 ZFS_AC_KERNEL_SRC_SET_CACHED_ACL_USABLE 376 ZFS_AC_KERNEL_SRC_POSIX_ACL_CHMOD 377 ZFS_AC_KERNEL_SRC_POSIX_ACL_EQUIV_MODE_WANTS_UMODE_T 378 ZFS_AC_KERNEL_SRC_POSIX_ACL_VALID_WITH_NS 379 ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_GET_ACL 380 ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_SET_ACL 381 ZFS_AC_KERNEL_SRC_GET_ACL_HANDLE_CACHE 382 ZFS_AC_KERNEL_SRC_ACL_HAS_REFCOUNT 383]) 384 385AC_DEFUN([ZFS_AC_KERNEL_ACL], [ 386 ZFS_AC_KERNEL_POSIX_ACL_RELEASE 387 ZFS_AC_KERNEL_SET_CACHED_ACL_USABLE 388 ZFS_AC_KERNEL_POSIX_ACL_CHMOD 389 ZFS_AC_KERNEL_POSIX_ACL_EQUIV_MODE_WANTS_UMODE_T 390 ZFS_AC_KERNEL_POSIX_ACL_VALID_WITH_NS 391 ZFS_AC_KERNEL_INODE_OPERATIONS_GET_ACL 392 ZFS_AC_KERNEL_INODE_OPERATIONS_SET_ACL 393 ZFS_AC_KERNEL_GET_ACL_HANDLE_CACHE 394 ZFS_AC_KERNEL_ACL_HAS_REFCOUNT 395]) 396