1 /* -*- buffer-read-only: t -*- vi: set ro:
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.
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.
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/>.
16 * \file lustre_dlm_flags.h
17 * The flags and collections of flags (masks) for \see struct ldlm_lock.
19 * \addtogroup LDLM Lustre Distributed Lock Manager
23 * The flags and collections of flags (masks) for \see struct ldlm_lock.
26 #ifndef LDLM_ALL_FLAGS_MASK
28 /** l_flags bits marked as "all_flags" bits */
29 #define LDLM_FL_ALL_FLAGS_MASK 0x00FFFFFFC28F932FULL
31 /** extent, mode, or resource changed */
32 #define LDLM_FL_LOCK_CHANGED 0x0000000000000001ULL // bit 0
33 #define ldlm_is_lock_changed(_l) LDLM_TEST_FLAG((_l), 1ULL << 0)
34 #define ldlm_set_lock_changed(_l) LDLM_SET_FLAG((_l), 1ULL << 0)
35 #define ldlm_clear_lock_changed(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 0)
38 * Server placed lock on granted list, or a recovering client wants the
39 * lock added to the granted list, no questions asked.
41 #define LDLM_FL_BLOCK_GRANTED 0x0000000000000002ULL // bit 1
42 #define ldlm_is_block_granted(_l) LDLM_TEST_FLAG((_l), 1ULL << 1)
43 #define ldlm_set_block_granted(_l) LDLM_SET_FLAG((_l), 1ULL << 1)
44 #define ldlm_clear_block_granted(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 1)
47 * Server placed lock on conv list, or a recovering client wants the lock
48 * added to the conv list, no questions asked. (obsoleted)
50 #define LDLM_FL_BLOCK_CONV 0x0000000000000004ULL // bit 2
51 #define ldlm_is_block_conv(_l) LDLM_TEST_FLAG((_l), 1ULL << 2)
52 #define ldlm_set_block_conv(_l) LDLM_SET_FLAG((_l), 1ULL << 2)
53 #define ldlm_clear_block_conv(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 2)
56 * Server placed lock on wait list, or a recovering client wants the lock
57 * added to the wait list, no questions asked.
59 #define LDLM_FL_BLOCK_WAIT 0x0000000000000008ULL // bit 3
60 #define ldlm_is_block_wait(_l) LDLM_TEST_FLAG((_l), 1ULL << 3)
61 #define ldlm_set_block_wait(_l) LDLM_SET_FLAG((_l), 1ULL << 3)
62 #define ldlm_clear_block_wait(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 3)
65 * Lock request is speculative/asynchronous, and cannot wait for any reason.
66 * Fail the lock request if any blocking locks are encountered.
68 #define LDLM_FL_SPECULATIVE 0x0000000000000010ULL /* bit 4 */
69 #define ldlm_is_speculative(_l) LDLM_TEST_FLAG((_l), 1ULL << 4)
70 #define ldlm_set_speculative(_l) LDLM_SET_FLAG((_l), 1ULL << 4)
71 #define ldlm_clear_specualtive_(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 4)
73 /** blocking or cancel packet was queued for sending. */
74 #define LDLM_FL_AST_SENT 0x0000000000000020ULL // bit 5
75 #define ldlm_is_ast_sent(_l) LDLM_TEST_FLAG((_l), 1ULL << 5)
76 #define ldlm_set_ast_sent(_l) LDLM_SET_FLAG((_l), 1ULL << 5)
77 #define ldlm_clear_ast_sent(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 5)
80 * Lock is being replayed. This could probably be implied by the fact that
81 * one of BLOCK_{GRANTED,CONV,WAIT} is set, but that is pretty dangerous.
83 #define LDLM_FL_REPLAY 0x0000000000000100ULL // bit 8
84 #define ldlm_is_replay(_l) LDLM_TEST_FLAG((_l), 1ULL << 8)
85 #define ldlm_set_replay(_l) LDLM_SET_FLAG((_l), 1ULL << 8)
86 #define ldlm_clear_replay(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 8)
88 /** Don't grant lock, just do intent. */
89 #define LDLM_FL_INTENT_ONLY 0x0000000000000200ULL // bit 9
90 #define ldlm_is_intent_only(_l) LDLM_TEST_FLAG((_l), 1ULL << 9)
91 #define ldlm_set_intent_only(_l) LDLM_SET_FLAG((_l), 1ULL << 9)
92 #define ldlm_clear_intent_only(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 9)
94 /** lock request has intent */
95 #define LDLM_FL_HAS_INTENT 0x0000000000001000ULL // bit 12
96 #define ldlm_is_has_intent(_l) LDLM_TEST_FLAG((_l), 1ULL << 12)
97 #define ldlm_set_has_intent(_l) LDLM_SET_FLAG((_l), 1ULL << 12)
98 #define ldlm_clear_has_intent(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 12)
100 /** flock deadlock detected */
101 #define LDLM_FL_FLOCK_DEADLOCK 0x0000000000008000ULL // bit 15
102 #define ldlm_is_flock_deadlock(_l) LDLM_TEST_FLAG((_l), 1ULL << 15)
103 #define ldlm_set_flock_deadlock(_l) LDLM_SET_FLAG((_l), 1ULL << 15)
104 #define ldlm_clear_flock_deadlock(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 15)
106 /** discard (no writeback (PW locks) or page retention (PR locks)) on cancel */
107 #define LDLM_FL_DISCARD_DATA 0x0000000000010000ULL // bit 16
108 #define ldlm_is_discard_data(_l) LDLM_TEST_FLAG((_l), 1ULL << 16)
109 #define ldlm_set_discard_data(_l) LDLM_SET_FLAG((_l), 1ULL << 16)
110 #define ldlm_clear_discard_data(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 16)
112 /** Blocked by group lock - wait indefinitely */
113 #define LDLM_FL_NO_TIMEOUT 0x0000000000020000ULL // bit 17
114 #define ldlm_is_no_timeout(_l) LDLM_TEST_FLAG((_l), 1ULL << 17)
115 #define ldlm_set_no_timeout(_l) LDLM_SET_FLAG((_l), 1ULL << 17)
116 #define ldlm_clear_no_timeout(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 17)
119 * Server told not to wait if blocked. For AGL, OST will not send glimpse
122 #define LDLM_FL_BLOCK_NOWAIT 0x0000000000040000ULL // bit 18
123 #define ldlm_is_block_nowait(_l) LDLM_TEST_FLAG((_l), 1ULL << 18)
124 #define ldlm_set_block_nowait(_l) LDLM_SET_FLAG((_l), 1ULL << 18)
125 #define ldlm_clear_block_nowait(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 18)
127 /** return blocking lock */
128 #define LDLM_FL_TEST_LOCK 0x0000000000080000ULL // bit 19
129 #define ldlm_is_test_lock(_l) LDLM_TEST_FLAG((_l), 1ULL << 19)
130 #define ldlm_set_test_lock(_l) LDLM_SET_FLAG((_l), 1ULL << 19)
131 #define ldlm_clear_test_lock(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 19)
133 /** match lock only */
134 #define LDLM_FL_MATCH_LOCK 0x0000000000100000ULL // bit 20
137 * Immediatelly cancel such locks when they block some other locks. Send
138 * cancel notification to original lock holder, but expect no reply. This
139 * is for clients (like liblustre) that cannot be expected to reliably
140 * response to blocking AST.
142 #define LDLM_FL_CANCEL_ON_BLOCK 0x0000000000800000ULL // bit 23
143 #define ldlm_is_cancel_on_block(_l) LDLM_TEST_FLAG((_l), 1ULL << 23)
144 #define ldlm_set_cancel_on_block(_l) LDLM_SET_FLAG((_l), 1ULL << 23)
145 #define ldlm_clear_cancel_on_block(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 23)
148 * Flag indicates that lock is being converted (downgraded) during the blocking
149 * AST instead of cancelling. Used for IBITS locks now and drops conflicting
150 * bits only keepeing other.
152 #define LDLM_FL_CONVERTING 0x0000000002000000ULL /* bit 25 */
153 #define ldlm_is_converting(_l) LDLM_TEST_FLAG((_l), 1ULL << 25)
154 #define ldlm_set_converting(_l) LDLM_SET_FLAG((_l), 1ULL << 25)
155 #define ldlm_clear_converting(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 25)
158 * Do not expand this lock. Grant it only on the extent requested.
159 * Used for manually requested locks from the client (LU_LADVISE_LOCKAHEAD).
161 #define LDLM_FL_NO_EXPANSION 0x0000000020000000ULL /* bit 29 */
162 #define ldlm_is_do_not_expand(_l) LDLM_TEST_FLAG((_l), 1ULL << 29)
163 #define ldlm_set_do_not_expand(_l) LDLM_SET_FLAG((_l), 1ULL << 29)
164 #define ldlm_clear_do_not_expand(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 29)
166 /* measure lock contention and return -EUSERS if locking contention is high */
167 #define LDLM_FL_DENY_ON_CONTENTION 0x0000000040000000ULL // bit 30
168 #define ldlm_is_deny_on_contention(_l) LDLM_TEST_FLAG((_l), 1ULL << 30)
169 #define ldlm_set_deny_on_contention(_l) LDLM_SET_FLAG((_l), 1ULL << 30)
170 #define ldlm_clear_deny_on_contention(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 30)
173 * These are flags that are mapped into the flags and ASTs of blocking
174 * locks Add FL_DISCARD to blocking ASTs
176 #define LDLM_FL_AST_DISCARD_DATA 0x0000000080000000ULL // bit 31
177 #define ldlm_is_ast_discard_data(_l) LDLM_TEST_FLAG((_l), 1ULL << 31)
178 #define ldlm_set_ast_discard_data(_l) LDLM_SET_FLAG((_l), 1ULL << 31)
179 #define ldlm_clear_ast_discard_data(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 31)
182 * Used for marking lock as a target for -EINTR while cp_ast sleep emulation
183 * + race with upcoming bl_ast.
185 #define LDLM_FL_FAIL_LOC 0x0000000100000000ULL // bit 32
186 #define ldlm_is_fail_loc(_l) LDLM_TEST_FLAG((_l), 1ULL << 32)
187 #define ldlm_set_fail_loc(_l) LDLM_SET_FLAG((_l), 1ULL << 32)
188 #define ldlm_clear_fail_loc(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 32)
190 /** this lock is being destroyed */
191 #define LDLM_FL_CBPENDING 0x0000000400000000ULL // bit 34
192 #define ldlm_is_cbpending(_l) LDLM_TEST_FLAG((_l), 1ULL << 34)
193 #define ldlm_set_cbpending(_l) LDLM_SET_FLAG((_l), 1ULL << 34)
194 #define ldlm_clear_cbpending(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 34)
196 /** not a real flag, not saved in lock */
197 #define LDLM_FL_WAIT_NOREPROC 0x0000000800000000ULL // bit 35
198 #define ldlm_is_wait_noreproc(_l) LDLM_TEST_FLAG((_l), 1ULL << 35)
199 #define ldlm_set_wait_noreproc(_l) LDLM_SET_FLAG((_l), 1ULL << 35)
200 #define ldlm_clear_wait_noreproc(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 35)
202 /** cancellation callback already run */
203 #define LDLM_FL_CANCEL 0x0000001000000000ULL // bit 36
204 #define ldlm_is_cancel(_l) LDLM_TEST_FLAG((_l), 1ULL << 36)
205 #define ldlm_set_cancel(_l) LDLM_SET_FLAG((_l), 1ULL << 36)
206 #define ldlm_clear_cancel(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 36)
208 /** whatever it might mean -- never transmitted? */
209 #define LDLM_FL_LOCAL_ONLY 0x0000002000000000ULL // bit 37
210 #define ldlm_is_local_only(_l) LDLM_TEST_FLAG((_l), 1ULL << 37)
211 #define ldlm_set_local_only(_l) LDLM_SET_FLAG((_l), 1ULL << 37)
212 #define ldlm_clear_local_only(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 37)
214 /** don't run the cancel callback under ldlm_cli_cancel_unused */
215 #define LDLM_FL_FAILED 0x0000004000000000ULL // bit 38
216 #define ldlm_is_failed(_l) LDLM_TEST_FLAG((_l), 1ULL << 38)
217 #define ldlm_set_failed(_l) LDLM_SET_FLAG((_l), 1ULL << 38)
218 #define ldlm_clear_failed(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 38)
220 /** lock cancel has already been sent */
221 #define LDLM_FL_CANCELING 0x0000008000000000ULL // bit 39
222 #define ldlm_is_canceling(_l) LDLM_TEST_FLAG((_l), 1ULL << 39)
223 #define ldlm_set_canceling(_l) LDLM_SET_FLAG((_l), 1ULL << 39)
224 #define ldlm_clear_canceling(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 39)
226 /** local lock (ie, no srv/cli split) */
227 #define LDLM_FL_LOCAL 0x0000010000000000ULL // bit 40
228 #define ldlm_is_local(_l) LDLM_TEST_FLAG((_l), 1ULL << 40)
229 #define ldlm_set_local(_l) LDLM_SET_FLAG((_l), 1ULL << 40)
230 #define ldlm_clear_local(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 40)
233 * XXX FIXME: This is being added to b_size as a low-risk fix to the
234 * fact that the LVB filling happens _after_ the lock has been granted,
235 * so another thread can match it before the LVB has been updated. As a
236 * dirty hack, we set LDLM_FL_LVB_READY only after we've done the LVB poop.
237 * this is only needed on LOV/OSC now, where LVB is actually used and
238 * callers must set it in input flags.
240 * The proper fix is to do the granting inside of the completion AST,
241 * which can be replaced with a LVB-aware wrapping function for OSC locks.
242 * That change is pretty high-risk, though, and would need a lot more
245 #define LDLM_FL_LVB_READY 0x0000020000000000ULL // bit 41
246 #define ldlm_is_lvb_ready(_l) LDLM_TEST_FLAG((_l), 1ULL << 41)
247 #define ldlm_set_lvb_ready(_l) LDLM_SET_FLAG((_l), 1ULL << 41)
248 #define ldlm_clear_lvb_ready(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 41)
251 * A lock contributes to the known minimum size (KMS) calculation until it
252 * has finished the part of its cancelation that performs write back on its
253 * dirty pages. It can remain on the granted list during this whole time.
254 * Threads racing to update the KMS after performing their writeback need
255 * to know to exclude each other's locks from the calculation as they walk
258 #define LDLM_FL_KMS_IGNORE 0x0000040000000000ULL // bit 42
259 #define ldlm_is_kms_ignore(_l) LDLM_TEST_FLAG((_l), 1ULL << 42)
260 #define ldlm_set_kms_ignore(_l) LDLM_SET_FLAG((_l), 1ULL << 42)
261 #define ldlm_clear_kms_ignore(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 42)
263 /** completion AST to be executed */
264 #define LDLM_FL_CP_REQD 0x0000080000000000ULL // bit 43
265 #define ldlm_is_cp_reqd(_l) LDLM_TEST_FLAG((_l), 1ULL << 43)
266 #define ldlm_set_cp_reqd(_l) LDLM_SET_FLAG((_l), 1ULL << 43)
267 #define ldlm_clear_cp_reqd(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 43)
269 /** cleanup_resource has already handled the lock */
270 #define LDLM_FL_CLEANED 0x0000100000000000ULL // bit 44
271 #define ldlm_is_cleaned(_l) LDLM_TEST_FLAG((_l), 1ULL << 44)
272 #define ldlm_set_cleaned(_l) LDLM_SET_FLAG((_l), 1ULL << 44)
273 #define ldlm_clear_cleaned(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 44)
276 * optimization hint: LDLM can run blocking callback from current context
277 * w/o involving separate thread. in order to decrease cs rate
279 #define LDLM_FL_ATOMIC_CB 0x0000200000000000ULL // bit 45
280 #define ldlm_is_atomic_cb(_l) LDLM_TEST_FLAG((_l), 1ULL << 45)
281 #define ldlm_set_atomic_cb(_l) LDLM_SET_FLAG((_l), 1ULL << 45)
282 #define ldlm_clear_atomic_cb(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 45)
285 * It may happen that a client initiates two operations, e.g. unlink and
286 * mkdir, such that the server sends a blocking AST for conflicting locks
287 * to this client for the first operation, whereas the second operation
288 * has canceled this lock and is waiting for rpc_lock which is taken by
289 * the first operation. LDLM_FL_BL_AST is set by ldlm_callback_handler() in
290 * the lock to prevent the Early Lock Cancel (ELC) code from cancelling it.
292 #define LDLM_FL_BL_AST 0x0000400000000000ULL // bit 46
293 #define ldlm_is_bl_ast(_l) LDLM_TEST_FLAG((_l), 1ULL << 46)
294 #define ldlm_set_bl_ast(_l) LDLM_SET_FLAG((_l), 1ULL << 46)
295 #define ldlm_clear_bl_ast(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 46)
298 * Set by ldlm_cancel_callback() when lock cache is dropped to let
299 * ldlm_callback_handler() return EINVAL to the server. It is used when
300 * ELC RPC is already prepared and is waiting for rpc_lock, too late to
301 * send a separate CANCEL RPC.
303 #define LDLM_FL_BL_DONE 0x0000800000000000ULL // bit 47
304 #define ldlm_is_bl_done(_l) LDLM_TEST_FLAG((_l), 1ULL << 47)
305 #define ldlm_set_bl_done(_l) LDLM_SET_FLAG((_l), 1ULL << 47)
306 #define ldlm_clear_bl_done(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 47)
309 * Don't put lock into the LRU list, so that it is not canceled due
310 * to aging. Used by MGC locks, they are cancelled only at unmount or
313 #define LDLM_FL_NO_LRU 0x0001000000000000ULL // bit 48
314 #define ldlm_is_no_lru(_l) LDLM_TEST_FLAG((_l), 1ULL << 48)
315 #define ldlm_set_no_lru(_l) LDLM_SET_FLAG((_l), 1ULL << 48)
316 #define ldlm_clear_no_lru(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 48)
319 * Set for locks that failed and where the server has been notified.
320 * Protected by lock and resource locks.
322 #define LDLM_FL_FAIL_NOTIFIED 0x0002000000000000ULL // bit 49
323 #define ldlm_is_fail_notified(_l) LDLM_TEST_FLAG((_l), 1ULL << 49)
324 #define ldlm_set_fail_notified(_l) LDLM_SET_FLAG((_l), 1ULL << 49)
325 #define ldlm_clear_fail_notified(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 49)
328 * Set for locks that were removed from class hash table and will
329 * be destroyed when last reference to them is released. Set by
330 * ldlm_lock_destroy_internal().
332 * Protected by lock and resource locks.
334 #define LDLM_FL_DESTROYED 0x0004000000000000ULL // bit 50
335 #define ldlm_is_destroyed(_l) LDLM_TEST_FLAG((_l), 1ULL << 50)
336 #define ldlm_set_destroyed(_l) LDLM_SET_FLAG((_l), 1ULL << 50)
337 #define ldlm_clear_destroyed(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 50)
340 * It's set in lock_res_and_lock() and unset in unlock_res_and_lock().
342 * NB: compared with check_res_locked(), checking this bit is cheaper.
343 * Also, spin_is_locked() is deprecated for kernel code; one reason is
344 * because it works only for SMP so user needs to add extra macros like
345 * LASSERT_SPIN_LOCKED for uniprocessor kernels.
347 #define LDLM_FL_RES_LOCKED 0x0010000000000000ULL // bit 52
348 #define ldlm_is_res_locked(_l) LDLM_TEST_FLAG((_l), 1ULL << 52)
349 #define ldlm_set_res_locked(_l) LDLM_SET_FLAG((_l), 1ULL << 52)
350 #define ldlm_clear_res_locked(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 52)
353 * It's set once we call ldlm_add_waiting_lock_res_locked() to start the
354 * lock-timeout timer and it will never be reset.
355 * Protected by lock and resource locks.
357 #define LDLM_FL_WAITED 0x0020000000000000ULL // bit 53
358 #define ldlm_is_waited(_l) LDLM_TEST_FLAG((_l), 1ULL << 53)
359 #define ldlm_set_waited(_l) LDLM_SET_FLAG((_l), 1ULL << 53)
360 #define ldlm_clear_waited(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 53)
362 /** Flag whether this is a server namespace lock. */
363 #define LDLM_FL_NS_SRV 0x0040000000000000ULL // bit 54
364 #define ldlm_is_ns_srv(_l) LDLM_TEST_FLAG((_l), 1ULL << 54)
365 #define ldlm_set_ns_srv(_l) LDLM_SET_FLAG((_l), 1ULL << 54)
366 #define ldlm_clear_ns_srv(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 54)
368 /** Flag whether this lock can be reused. Used by exclusive open. */
369 #define LDLM_FL_EXCL 0x0080000000000000ULL // bit 55
370 #define ldlm_is_excl(_l) LDLM_TEST_FLAG((_l), 1ULL << 55)
371 #define ldlm_set_excl(_l) LDLM_SET_FLAG((_l), 1ULL << 55)
372 #define ldlm_clear_excl(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 55)
374 /** Flag whether a lock is found on server for re-sent RPC. */
375 #define LDLM_FL_RESENT 0x0100000000000000ULL // bit 56
378 * This flags means to use non-delay RPC to send dlm request RPC.
380 #define LDLM_FL_NDELAY 0x0400000000000000ULL /* bit 58 */
381 #define ldlm_is_ndelay(_l) LDLM_TEST_FLAG((_l), 1ULL << 58)
382 #define ldlm_set_ndelay(_l) LDLM_SET_FLAG((_l), 1ULL << 58)
384 /* LVB from this lock is cached in osc object */
385 #define LDLM_FL_LVB_CACHED 0x0800000000000000ULL /* bit 59 */
386 #define ldlm_is_lvb_cached(_l) LDLM_TEST_FLAG((_l), 1ULL << 59)
387 #define ldlm_set_lvb_cached(_l) LDLM_SET_FLAG((_l), 1ULL << 59)
388 #define ldlm_clear_lvb_cached(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 59)
390 /** l_flags bits marked as "ast" bits */
391 #define LDLM_FL_AST_MASK (LDLM_FL_FLOCK_DEADLOCK |\
392 LDLM_FL_DISCARD_DATA)
394 /** l_flags bits marked as "blocked" bits */
395 #define LDLM_FL_BLOCKED_MASK (LDLM_FL_BLOCK_GRANTED |\
398 /** l_flags bits marked as "gone" bits */
399 #define LDLM_FL_GONE_MASK (LDLM_FL_DESTROYED |\
402 /** l_flags bits marked as "inherit" bits
403 * Flags inherited from wire on enqueue/reply between client/server.
404 * CANCEL_ON_BLOCK so server will not grant if a blocking lock is found
405 * NO_TIMEOUT flag to force ldlm_lock_match() to wait with no timeout.
406 * TEST_LOCK flag to not let TEST lock to be granted.
407 * NO_EXPANSION to tell server not to expand extent of lock request
409 #define LDLM_FL_INHERIT_MASK (LDLM_FL_CANCEL_ON_BLOCK |\
410 LDLM_FL_NO_TIMEOUT |\
412 LDLM_FL_NO_EXPANSION)
414 /** flags returned in @flags parameter on ldlm_lock_enqueue,
415 * to be re-constructed on re-send
417 #define LDLM_FL_SRV_ENQ_MASK (LDLM_FL_LOCK_CHANGED |\
418 LDLM_FL_BLOCKED_MASK |\
421 /** test for ldlm_lock flag bit set */
422 #define LDLM_TEST_FLAG(_l, _b) (((_l)->l_flags & (_b)) != 0)
424 /** multi-bit test: are any of mask bits set? */
425 #define LDLM_HAVE_MASK(_l, _m) (((_l)->l_flags & LDLM_FL_##_m##_MASK) != 0)
427 /** set a ldlm_lock flag bit */
428 #define LDLM_SET_FLAG(_l, _b) ((_l)->l_flags |= (_b))
430 /** clear a ldlm_lock flag bit */
431 #define LDLM_CLEAR_FLAG(_l, _b) ((_l)->l_flags &= ~(_b))
435 #endif /* LDLM_ALL_FLAGS_MASK */