1 /* -*- buffer-read-only: t -*- vi: set ro: 2 * 3 * This program is free software; you can redistribute it and/or modify 4 * it under the terms of the GNU General Public License version 2 only, 5 * as published by the Free Software Foundation. 6 * 7 * Lustre is distributed in the hope that it will be useful, but 8 * WITHOUT ANY WARRANTY; without even the implied warranty of 9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 10 * See the GNU General Public License for more details. 11 * 12 * You should have received a copy of the GNU General Public License along 13 * with this program. If not, see <http://www.gnu.org/licenses/>. 14 */ 15 /** 16 * \file lustre_dlm_flags.h 17 * The flags and collections of flags (masks) for \see struct ldlm_lock. 18 * 19 * \addtogroup LDLM Lustre Distributed Lock Manager 20 * @{ 21 * 22 * \name flags 23 * The flags and collections of flags (masks) for \see struct ldlm_lock. 24 * @{ 25 */ 26 #ifndef LDLM_ALL_FLAGS_MASK 27 28 /** l_flags bits marked as "all_flags" bits */ 29 #define LDLM_FL_ALL_FLAGS_MASK 0x00FFFFFFC08F932FULL 30 31 /** l_flags bits marked as "ast" bits */ 32 #define LDLM_FL_AST_MASK 0x0000000080008000ULL 33 34 /** l_flags bits marked as "blocked" bits */ 35 #define LDLM_FL_BLOCKED_MASK 0x000000000000000EULL 36 37 /** l_flags bits marked as "gone" bits */ 38 #define LDLM_FL_GONE_MASK 0x0006004000000000ULL 39 40 /** l_flags bits marked as "hide_lock" bits */ 41 #define LDLM_FL_HIDE_LOCK_MASK 0x0000206400000000ULL 42 43 /** l_flags bits marked as "inherit" bits */ 44 #define LDLM_FL_INHERIT_MASK 0x0000000000800000ULL 45 46 /** l_flags bits marked as "local_only" bits */ 47 #define LDLM_FL_LOCAL_ONLY_MASK 0x00FFFFFF00000000ULL 48 49 /** l_flags bits marked as "on_wire" bits */ 50 #define LDLM_FL_ON_WIRE_MASK 0x00000000C08F932FULL 51 52 /** extent, mode, or resource changed */ 53 #define LDLM_FL_LOCK_CHANGED 0x0000000000000001ULL /* bit 0 */ 54 #define ldlm_is_lock_changed(_l) LDLM_TEST_FLAG((_l), 1ULL << 0) 55 #define ldlm_set_lock_changed(_l) LDLM_SET_FLAG((_l), 1ULL << 0) 56 #define ldlm_clear_lock_changed(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 0) 57 58 /** 59 * Server placed lock on granted list, or a recovering client wants the 60 * lock added to the granted list, no questions asked. */ 61 #define LDLM_FL_BLOCK_GRANTED 0x0000000000000002ULL /* bit 1 */ 62 #define ldlm_is_block_granted(_l) LDLM_TEST_FLAG((_l), 1ULL << 1) 63 #define ldlm_set_block_granted(_l) LDLM_SET_FLAG((_l), 1ULL << 1) 64 #define ldlm_clear_block_granted(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 1) 65 66 /** 67 * Server placed lock on conv list, or a recovering client wants the lock 68 * added to the conv list, no questions asked. */ 69 #define LDLM_FL_BLOCK_CONV 0x0000000000000004ULL /* bit 2 */ 70 #define ldlm_is_block_conv(_l) LDLM_TEST_FLAG((_l), 1ULL << 2) 71 #define ldlm_set_block_conv(_l) LDLM_SET_FLAG((_l), 1ULL << 2) 72 #define ldlm_clear_block_conv(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 2) 73 74 /** 75 * Server placed lock on wait list, or a recovering client wants the lock 76 * added to the wait list, no questions asked. */ 77 #define LDLM_FL_BLOCK_WAIT 0x0000000000000008ULL /* bit 3 */ 78 #define ldlm_is_block_wait(_l) LDLM_TEST_FLAG((_l), 1ULL << 3) 79 #define ldlm_set_block_wait(_l) LDLM_SET_FLAG((_l), 1ULL << 3) 80 #define ldlm_clear_block_wait(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 3) 81 82 /** blocking or cancel packet was queued for sending. */ 83 #define LDLM_FL_AST_SENT 0x0000000000000020ULL /* bit 5 */ 84 #define ldlm_is_ast_sent(_l) LDLM_TEST_FLAG((_l), 1ULL << 5) 85 #define ldlm_set_ast_sent(_l) LDLM_SET_FLAG((_l), 1ULL << 5) 86 #define ldlm_clear_ast_sent(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 5) 87 88 /** 89 * Lock is being replayed. This could probably be implied by the fact that 90 * one of BLOCK_{GRANTED,CONV,WAIT} is set, but that is pretty dangerous. */ 91 #define LDLM_FL_REPLAY 0x0000000000000100ULL /* bit 8 */ 92 #define ldlm_is_replay(_l) LDLM_TEST_FLAG((_l), 1ULL << 8) 93 #define ldlm_set_replay(_l) LDLM_SET_FLAG((_l), 1ULL << 8) 94 #define ldlm_clear_replay(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 8) 95 96 /** Don't grant lock, just do intent. */ 97 #define LDLM_FL_INTENT_ONLY 0x0000000000000200ULL /* bit 9 */ 98 #define ldlm_is_intent_only(_l) LDLM_TEST_FLAG((_l), 1ULL << 9) 99 #define ldlm_set_intent_only(_l) LDLM_SET_FLAG((_l), 1ULL << 9) 100 #define ldlm_clear_intent_only(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 9) 101 102 /** lock request has intent */ 103 #define LDLM_FL_HAS_INTENT 0x0000000000001000ULL /* bit 12 */ 104 #define ldlm_is_has_intent(_l) LDLM_TEST_FLAG((_l), 1ULL << 12) 105 #define ldlm_set_has_intent(_l) LDLM_SET_FLAG((_l), 1ULL << 12) 106 #define ldlm_clear_has_intent(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 12) 107 108 /** flock deadlock detected */ 109 #define LDLM_FL_FLOCK_DEADLOCK 0x0000000000008000ULL /* bit 15 */ 110 #define ldlm_is_flock_deadlock(_l) LDLM_TEST_FLAG((_l), 1ULL << 15) 111 #define ldlm_set_flock_deadlock(_l) LDLM_SET_FLAG((_l), 1ULL << 15) 112 #define ldlm_clear_flock_deadlock(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 15) 113 114 /** discard (no writeback) on cancel */ 115 #define LDLM_FL_DISCARD_DATA 0x0000000000010000ULL /* bit 16 */ 116 #define ldlm_is_discard_data(_l) LDLM_TEST_FLAG((_l), 1ULL << 16) 117 #define ldlm_set_discard_data(_l) LDLM_SET_FLAG((_l), 1ULL << 16) 118 #define ldlm_clear_discard_data(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 16) 119 120 /** Blocked by group lock - wait indefinitely */ 121 #define LDLM_FL_NO_TIMEOUT 0x0000000000020000ULL /* bit 17 */ 122 #define ldlm_is_no_timeout(_l) LDLM_TEST_FLAG((_l), 1ULL << 17) 123 #define ldlm_set_no_timeout(_l) LDLM_SET_FLAG((_l), 1ULL << 17) 124 #define ldlm_clear_no_timeout(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 17) 125 126 /** 127 * Server told not to wait if blocked. For AGL, OST will not send glimpse 128 * callback. */ 129 #define LDLM_FL_BLOCK_NOWAIT 0x0000000000040000ULL /* bit 18 */ 130 #define ldlm_is_block_nowait(_l) LDLM_TEST_FLAG((_l), 1ULL << 18) 131 #define ldlm_set_block_nowait(_l) LDLM_SET_FLAG((_l), 1ULL << 18) 132 #define ldlm_clear_block_nowait(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 18) 133 134 /** return blocking lock */ 135 #define LDLM_FL_TEST_LOCK 0x0000000000080000ULL /* bit 19 */ 136 #define ldlm_is_test_lock(_l) LDLM_TEST_FLAG((_l), 1ULL << 19) 137 #define ldlm_set_test_lock(_l) LDLM_SET_FLAG((_l), 1ULL << 19) 138 #define ldlm_clear_test_lock(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 19) 139 140 /** 141 * Immediately cancel such locks when they block some other locks. Send 142 * cancel notification to original lock holder, but expect no reply. This 143 * is for clients (like liblustre) that cannot be expected to reliably 144 * response to blocking AST. */ 145 #define LDLM_FL_CANCEL_ON_BLOCK 0x0000000000800000ULL /* bit 23 */ 146 #define ldlm_is_cancel_on_block(_l) LDLM_TEST_FLAG((_l), 1ULL << 23) 147 #define ldlm_set_cancel_on_block(_l) LDLM_SET_FLAG((_l), 1ULL << 23) 148 #define ldlm_clear_cancel_on_block(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 23) 149 150 /** 151 * measure lock contention and return -EUSERS if locking contention is high */ 152 #define LDLM_FL_DENY_ON_CONTENTION 0x0000000040000000ULL /* bit 30 */ 153 #define ldlm_is_deny_on_contention(_l) LDLM_TEST_FLAG((_l), 1ULL << 30) 154 #define ldlm_set_deny_on_contention(_l) LDLM_SET_FLAG((_l), 1ULL << 30) 155 #define ldlm_clear_deny_on_contention(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 30) 156 157 /** 158 * These are flags that are mapped into the flags and ASTs of blocking 159 * locks Add FL_DISCARD to blocking ASTs */ 160 #define LDLM_FL_AST_DISCARD_DATA 0x0000000080000000ULL /* bit 31 */ 161 #define ldlm_is_ast_discard_data(_l) LDLM_TEST_FLAG((_l), 1ULL << 31) 162 #define ldlm_set_ast_discard_data(_l) LDLM_SET_FLAG((_l), 1ULL << 31) 163 #define ldlm_clear_ast_discard_data(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 31) 164 165 /** 166 * Used for marking lock as a target for -EINTR while cp_ast sleep emulation 167 * + race with upcoming bl_ast. */ 168 #define LDLM_FL_FAIL_LOC 0x0000000100000000ULL /* bit 32 */ 169 #define ldlm_is_fail_loc(_l) LDLM_TEST_FLAG((_l), 1ULL << 32) 170 #define ldlm_set_fail_loc(_l) LDLM_SET_FLAG((_l), 1ULL << 32) 171 #define ldlm_clear_fail_loc(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 32) 172 173 /** 174 * Used while processing the unused list to know that we have already 175 * handled this lock and decided to skip it. */ 176 #define LDLM_FL_SKIPPED 0x0000000200000000ULL /* bit 33 */ 177 #define ldlm_is_skipped(_l) LDLM_TEST_FLAG((_l), 1ULL << 33) 178 #define ldlm_set_skipped(_l) LDLM_SET_FLAG((_l), 1ULL << 33) 179 #define ldlm_clear_skipped(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 33) 180 181 /** this lock is being destroyed */ 182 #define LDLM_FL_CBPENDING 0x0000000400000000ULL /* bit 34 */ 183 #define ldlm_is_cbpending(_l) LDLM_TEST_FLAG((_l), 1ULL << 34) 184 #define ldlm_set_cbpending(_l) LDLM_SET_FLAG((_l), 1ULL << 34) 185 #define ldlm_clear_cbpending(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 34) 186 187 /** not a real flag, not saved in lock */ 188 #define LDLM_FL_WAIT_NOREPROC 0x0000000800000000ULL /* bit 35 */ 189 #define ldlm_is_wait_noreproc(_l) LDLM_TEST_FLAG((_l), 1ULL << 35) 190 #define ldlm_set_wait_noreproc(_l) LDLM_SET_FLAG((_l), 1ULL << 35) 191 #define ldlm_clear_wait_noreproc(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 35) 192 193 /** cancellation callback already run */ 194 #define LDLM_FL_CANCEL 0x0000001000000000ULL /* bit 36 */ 195 #define ldlm_is_cancel(_l) LDLM_TEST_FLAG((_l), 1ULL << 36) 196 #define ldlm_set_cancel(_l) LDLM_SET_FLAG((_l), 1ULL << 36) 197 #define ldlm_clear_cancel(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 36) 198 199 /** whatever it might mean */ 200 #define LDLM_FL_LOCAL_ONLY 0x0000002000000000ULL /* bit 37 */ 201 #define ldlm_is_local_only(_l) LDLM_TEST_FLAG((_l), 1ULL << 37) 202 #define ldlm_set_local_only(_l) LDLM_SET_FLAG((_l), 1ULL << 37) 203 #define ldlm_clear_local_only(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 37) 204 205 /** don't run the cancel callback under ldlm_cli_cancel_unused */ 206 #define LDLM_FL_FAILED 0x0000004000000000ULL /* bit 38 */ 207 #define ldlm_is_failed(_l) LDLM_TEST_FLAG((_l), 1ULL << 38) 208 #define ldlm_set_failed(_l) LDLM_SET_FLAG((_l), 1ULL << 38) 209 #define ldlm_clear_failed(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 38) 210 211 /** lock cancel has already been sent */ 212 #define LDLM_FL_CANCELING 0x0000008000000000ULL /* bit 39 */ 213 #define ldlm_is_canceling(_l) LDLM_TEST_FLAG((_l), 1ULL << 39) 214 #define ldlm_set_canceling(_l) LDLM_SET_FLAG((_l), 1ULL << 39) 215 #define ldlm_clear_canceling(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 39) 216 217 /** local lock (ie, no srv/cli split) */ 218 #define LDLM_FL_LOCAL 0x0000010000000000ULL /* bit 40 */ 219 #define ldlm_is_local(_l) LDLM_TEST_FLAG((_l), 1ULL << 40) 220 #define ldlm_set_local(_l) LDLM_SET_FLAG((_l), 1ULL << 40) 221 #define ldlm_clear_local(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 40) 222 223 /** 224 * XXX FIXME: This is being added to b_size as a low-risk fix to the 225 * fact that the LVB filling happens _after_ the lock has been granted, 226 * so another thread can match it before the LVB has been updated. As a 227 * dirty hack, we set LDLM_FL_LVB_READY only after we've done the LVB poop. 228 * this is only needed on LOV/OSC now, where LVB is actually used and 229 * callers must set it in input flags. 230 * 231 * The proper fix is to do the granting inside of the completion AST, 232 * which can be replaced with a LVB-aware wrapping function for OSC locks. 233 * That change is pretty high-risk, though, and would need a lot more 234 * testing. */ 235 #define LDLM_FL_LVB_READY 0x0000020000000000ULL /* bit 41 */ 236 #define ldlm_is_lvb_ready(_l) LDLM_TEST_FLAG((_l), 1ULL << 41) 237 #define ldlm_set_lvb_ready(_l) LDLM_SET_FLAG((_l), 1ULL << 41) 238 #define ldlm_clear_lvb_ready(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 41) 239 240 /** 241 * A lock contributes to the known minimum size (KMS) calculation until it 242 * has finished the part of its cancellation that performs write back on its 243 * dirty pages. It can remain on the granted list during this whole time. 244 * Threads racing to update the KMS after performing their writeback need 245 * to know to exclude each other's locks from the calculation as they walk 246 * the granted list. */ 247 #define LDLM_FL_KMS_IGNORE 0x0000040000000000ULL /* bit 42 */ 248 #define ldlm_is_kms_ignore(_l) LDLM_TEST_FLAG((_l), 1ULL << 42) 249 #define ldlm_set_kms_ignore(_l) LDLM_SET_FLAG((_l), 1ULL << 42) 250 #define ldlm_clear_kms_ignore(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 42) 251 252 /** completion AST to be executed */ 253 #define LDLM_FL_CP_REQD 0x0000080000000000ULL /* bit 43 */ 254 #define ldlm_is_cp_reqd(_l) LDLM_TEST_FLAG((_l), 1ULL << 43) 255 #define ldlm_set_cp_reqd(_l) LDLM_SET_FLAG((_l), 1ULL << 43) 256 #define ldlm_clear_cp_reqd(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 43) 257 258 /** cleanup_resource has already handled the lock */ 259 #define LDLM_FL_CLEANED 0x0000100000000000ULL /* bit 44 */ 260 #define ldlm_is_cleaned(_l) LDLM_TEST_FLAG((_l), 1ULL << 44) 261 #define ldlm_set_cleaned(_l) LDLM_SET_FLAG((_l), 1ULL << 44) 262 #define ldlm_clear_cleaned(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 44) 263 264 /** 265 * optimization hint: LDLM can run blocking callback from current context 266 * w/o involving separate thread. in order to decrease cs rate */ 267 #define LDLM_FL_ATOMIC_CB 0x0000200000000000ULL /* bit 45 */ 268 #define ldlm_is_atomic_cb(_l) LDLM_TEST_FLAG((_l), 1ULL << 45) 269 #define ldlm_set_atomic_cb(_l) LDLM_SET_FLAG((_l), 1ULL << 45) 270 #define ldlm_clear_atomic_cb(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 45) 271 272 /** 273 * It may happen that a client initiates two operations, e.g. unlink and 274 * mkdir, such that the server sends a blocking AST for conflicting locks 275 * to this client for the first operation, whereas the second operation 276 * has canceled this lock and is waiting for rpc_lock which is taken by 277 * the first operation. LDLM_FL_BL_AST is set by ldlm_callback_handler() in 278 * the lock to prevent the Early Lock Cancel (ELC) code from cancelling it. 279 * 280 * LDLM_FL_BL_DONE is to be set by ldlm_cancel_callback() when lock cache is 281 * dropped to let ldlm_callback_handler() return EINVAL to the server. It 282 * is used when ELC RPC is already prepared and is waiting for rpc_lock, 283 * too late to send a separate CANCEL RPC. */ 284 #define LDLM_FL_BL_AST 0x0000400000000000ULL /* bit 46 */ 285 #define ldlm_is_bl_ast(_l) LDLM_TEST_FLAG((_l), 1ULL << 46) 286 #define ldlm_set_bl_ast(_l) LDLM_SET_FLAG((_l), 1ULL << 46) 287 #define ldlm_clear_bl_ast(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 46) 288 289 /** whatever it might mean */ 290 #define LDLM_FL_BL_DONE 0x0000800000000000ULL /* bit 47 */ 291 #define ldlm_is_bl_done(_l) LDLM_TEST_FLAG((_l), 1ULL << 47) 292 #define ldlm_set_bl_done(_l) LDLM_SET_FLAG((_l), 1ULL << 47) 293 #define ldlm_clear_bl_done(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 47) 294 295 /** 296 * Don't put lock into the LRU list, so that it is not canceled due 297 * to aging. Used by MGC locks, they are cancelled only at unmount or 298 * by callback. */ 299 #define LDLM_FL_NO_LRU 0x0001000000000000ULL /* bit 48 */ 300 #define ldlm_is_no_lru(_l) LDLM_TEST_FLAG((_l), 1ULL << 48) 301 #define ldlm_set_no_lru(_l) LDLM_SET_FLAG((_l), 1ULL << 48) 302 #define ldlm_clear_no_lru(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 48) 303 304 /** 305 * Set for locks that failed and where the server has been notified. 306 * 307 * Protected by lock and resource locks. */ 308 #define LDLM_FL_FAIL_NOTIFIED 0x0002000000000000ULL /* bit 49 */ 309 #define ldlm_is_fail_notified(_l) LDLM_TEST_FLAG((_l), 1ULL << 49) 310 #define ldlm_set_fail_notified(_l) LDLM_SET_FLAG((_l), 1ULL << 49) 311 #define ldlm_clear_fail_notified(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 49) 312 313 /** 314 * Set for locks that were removed from class hash table and will 315 * be destroyed when last reference to them is released. Set by 316 * ldlm_lock_destroy_internal(). 317 * 318 * Protected by lock and resource locks. */ 319 #define LDLM_FL_DESTROYED 0x0004000000000000ULL /* bit 50 */ 320 #define ldlm_is_destroyed(_l) LDLM_TEST_FLAG((_l), 1ULL << 50) 321 #define ldlm_set_destroyed(_l) LDLM_SET_FLAG((_l), 1ULL << 50) 322 #define ldlm_clear_destroyed(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 50) 323 324 /** flag whether this is a server namespace lock */ 325 #define LDLM_FL_SERVER_LOCK 0x0008000000000000ULL /* bit 51 */ 326 #define ldlm_is_server_lock(_l) LDLM_TEST_FLAG((_l), 1ULL << 51) 327 #define ldlm_set_server_lock(_l) LDLM_SET_FLAG((_l), 1ULL << 51) 328 #define ldlm_clear_server_lock(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 51) 329 330 /** 331 * It's set in lock_res_and_lock() and unset in unlock_res_and_lock(). 332 * 333 * NB: compared with check_res_locked(), checking this bit is cheaper. 334 * Also, spin_is_locked() is deprecated for kernel code; one reason is 335 * because it works only for SMP so user needs to add extra macros like 336 * LASSERT_SPIN_LOCKED for uniprocessor kernels. */ 337 #define LDLM_FL_RES_LOCKED 0x0010000000000000ULL /* bit 52 */ 338 #define ldlm_is_res_locked(_l) LDLM_TEST_FLAG((_l), 1ULL << 52) 339 #define ldlm_set_res_locked(_l) LDLM_SET_FLAG((_l), 1ULL << 52) 340 #define ldlm_clear_res_locked(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 52) 341 342 /** 343 * It's set once we call ldlm_add_waiting_lock_res_locked() to start the 344 * lock-timeout timer and it will never be reset. 345 * 346 * Protected by lock and resource locks. */ 347 #define LDLM_FL_WAITED 0x0020000000000000ULL /* bit 53 */ 348 #define ldlm_is_waited(_l) LDLM_TEST_FLAG((_l), 1ULL << 53) 349 #define ldlm_set_waited(_l) LDLM_SET_FLAG((_l), 1ULL << 53) 350 #define ldlm_clear_waited(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 53) 351 352 /** Flag whether this is a server namespace lock. */ 353 #define LDLM_FL_NS_SRV 0x0040000000000000ULL /* bit 54 */ 354 #define ldlm_is_ns_srv(_l) LDLM_TEST_FLAG((_l), 1ULL << 54) 355 #define ldlm_set_ns_srv(_l) LDLM_SET_FLAG((_l), 1ULL << 54) 356 #define ldlm_clear_ns_srv(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 54) 357 358 /** Flag whether this lock can be reused. Used by exclusive open. */ 359 #define LDLM_FL_EXCL 0x0080000000000000ULL /* bit 55 */ 360 #define ldlm_is_excl(_l) LDLM_TEST_FLAG((_l), 1ULL << 55) 361 #define ldlm_set_excl(_l) LDLM_SET_FLAG((_l), 1ULL << 55) 362 #define ldlm_clear_excl(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 55) 363 364 /** test for ldlm_lock flag bit set */ 365 #define LDLM_TEST_FLAG(_l, _b) (((_l)->l_flags & (_b)) != 0) 366 367 /** set a ldlm_lock flag bit */ 368 #define LDLM_SET_FLAG(_l, _b) (((_l)->l_flags |= (_b)) 369 370 /** clear a ldlm_lock flag bit */ 371 #define LDLM_CLEAR_FLAG(_l, _b) (((_l)->l_flags &= ~(_b)) 372 373 /** Mask of flags inherited from parent lock when doing intents. */ 374 #define LDLM_INHERIT_FLAGS LDLM_FL_INHERIT_MASK 375 376 /** Mask of Flags sent in AST lock_flags to map into the receiving lock. */ 377 #define LDLM_AST_FLAGS LDLM_FL_AST_MASK 378 379 /** @} subgroup */ 380 /** @} group */ 381 #ifdef WIRESHARK_COMPILE 382 static int hf_lustre_ldlm_fl_lock_changed = -1; 383 static int hf_lustre_ldlm_fl_block_granted = -1; 384 static int hf_lustre_ldlm_fl_block_conv = -1; 385 static int hf_lustre_ldlm_fl_block_wait = -1; 386 static int hf_lustre_ldlm_fl_ast_sent = -1; 387 static int hf_lustre_ldlm_fl_replay = -1; 388 static int hf_lustre_ldlm_fl_intent_only = -1; 389 static int hf_lustre_ldlm_fl_has_intent = -1; 390 static int hf_lustre_ldlm_fl_flock_deadlock = -1; 391 static int hf_lustre_ldlm_fl_discard_data = -1; 392 static int hf_lustre_ldlm_fl_no_timeout = -1; 393 static int hf_lustre_ldlm_fl_block_nowait = -1; 394 static int hf_lustre_ldlm_fl_test_lock = -1; 395 static int hf_lustre_ldlm_fl_cancel_on_block = -1; 396 static int hf_lustre_ldlm_fl_deny_on_contention = -1; 397 static int hf_lustre_ldlm_fl_ast_discard_data = -1; 398 static int hf_lustre_ldlm_fl_fail_loc = -1; 399 static int hf_lustre_ldlm_fl_skipped = -1; 400 static int hf_lustre_ldlm_fl_cbpending = -1; 401 static int hf_lustre_ldlm_fl_wait_noreproc = -1; 402 static int hf_lustre_ldlm_fl_cancel = -1; 403 static int hf_lustre_ldlm_fl_local_only = -1; 404 static int hf_lustre_ldlm_fl_failed = -1; 405 static int hf_lustre_ldlm_fl_canceling = -1; 406 static int hf_lustre_ldlm_fl_local = -1; 407 static int hf_lustre_ldlm_fl_lvb_ready = -1; 408 static int hf_lustre_ldlm_fl_kms_ignore = -1; 409 static int hf_lustre_ldlm_fl_cp_reqd = -1; 410 static int hf_lustre_ldlm_fl_cleaned = -1; 411 static int hf_lustre_ldlm_fl_atomic_cb = -1; 412 static int hf_lustre_ldlm_fl_bl_ast = -1; 413 static int hf_lustre_ldlm_fl_bl_done = -1; 414 static int hf_lustre_ldlm_fl_no_lru = -1; 415 static int hf_lustre_ldlm_fl_fail_notified = -1; 416 static int hf_lustre_ldlm_fl_destroyed = -1; 417 static int hf_lustre_ldlm_fl_server_lock = -1; 418 static int hf_lustre_ldlm_fl_res_locked = -1; 419 static int hf_lustre_ldlm_fl_waited = -1; 420 static int hf_lustre_ldlm_fl_ns_srv = -1; 421 static int hf_lustre_ldlm_fl_excl = -1; 422 423 const value_string lustre_ldlm_flags_vals[] = { 424 {LDLM_FL_LOCK_CHANGED, "LDLM_FL_LOCK_CHANGED"}, 425 {LDLM_FL_BLOCK_GRANTED, "LDLM_FL_BLOCK_GRANTED"}, 426 {LDLM_FL_BLOCK_CONV, "LDLM_FL_BLOCK_CONV"}, 427 {LDLM_FL_BLOCK_WAIT, "LDLM_FL_BLOCK_WAIT"}, 428 {LDLM_FL_AST_SENT, "LDLM_FL_AST_SENT"}, 429 {LDLM_FL_REPLAY, "LDLM_FL_REPLAY"}, 430 {LDLM_FL_INTENT_ONLY, "LDLM_FL_INTENT_ONLY"}, 431 {LDLM_FL_HAS_INTENT, "LDLM_FL_HAS_INTENT"}, 432 {LDLM_FL_FLOCK_DEADLOCK, "LDLM_FL_FLOCK_DEADLOCK"}, 433 {LDLM_FL_DISCARD_DATA, "LDLM_FL_DISCARD_DATA"}, 434 {LDLM_FL_NO_TIMEOUT, "LDLM_FL_NO_TIMEOUT"}, 435 {LDLM_FL_BLOCK_NOWAIT, "LDLM_FL_BLOCK_NOWAIT"}, 436 {LDLM_FL_TEST_LOCK, "LDLM_FL_TEST_LOCK"}, 437 {LDLM_FL_CANCEL_ON_BLOCK, "LDLM_FL_CANCEL_ON_BLOCK"}, 438 {LDLM_FL_DENY_ON_CONTENTION, "LDLM_FL_DENY_ON_CONTENTION"}, 439 {LDLM_FL_AST_DISCARD_DATA, "LDLM_FL_AST_DISCARD_DATA"}, 440 {LDLM_FL_FAIL_LOC, "LDLM_FL_FAIL_LOC"}, 441 {LDLM_FL_SKIPPED, "LDLM_FL_SKIPPED"}, 442 {LDLM_FL_CBPENDING, "LDLM_FL_CBPENDING"}, 443 {LDLM_FL_WAIT_NOREPROC, "LDLM_FL_WAIT_NOREPROC"}, 444 {LDLM_FL_CANCEL, "LDLM_FL_CANCEL"}, 445 {LDLM_FL_LOCAL_ONLY, "LDLM_FL_LOCAL_ONLY"}, 446 {LDLM_FL_FAILED, "LDLM_FL_FAILED"}, 447 {LDLM_FL_CANCELING, "LDLM_FL_CANCELING"}, 448 {LDLM_FL_LOCAL, "LDLM_FL_LOCAL"}, 449 {LDLM_FL_LVB_READY, "LDLM_FL_LVB_READY"}, 450 {LDLM_FL_KMS_IGNORE, "LDLM_FL_KMS_IGNORE"}, 451 {LDLM_FL_CP_REQD, "LDLM_FL_CP_REQD"}, 452 {LDLM_FL_CLEANED, "LDLM_FL_CLEANED"}, 453 {LDLM_FL_ATOMIC_CB, "LDLM_FL_ATOMIC_CB"}, 454 {LDLM_FL_BL_AST, "LDLM_FL_BL_AST"}, 455 {LDLM_FL_BL_DONE, "LDLM_FL_BL_DONE"}, 456 {LDLM_FL_NO_LRU, "LDLM_FL_NO_LRU"}, 457 {LDLM_FL_FAIL_NOTIFIED, "LDLM_FL_FAIL_NOTIFIED"}, 458 {LDLM_FL_DESTROYED, "LDLM_FL_DESTROYED"}, 459 {LDLM_FL_SERVER_LOCK, "LDLM_FL_SERVER_LOCK"}, 460 {LDLM_FL_RES_LOCKED, "LDLM_FL_RES_LOCKED"}, 461 {LDLM_FL_WAITED, "LDLM_FL_WAITED"}, 462 {LDLM_FL_NS_SRV, "LDLM_FL_NS_SRV"}, 463 {LDLM_FL_EXCL, "LDLM_FL_EXCL"}, 464 { 0, NULL } 465 }; 466 #endif /* WIRESHARK_COMPILE */ 467 #endif /* LDLM_ALL_FLAGS_MASK */ 468