drivers/staging/lustre/lustre/include/lustre_dlm_flags.h

   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 */