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