| /* -*- buffer-read-only: t -*- vi: set ro: |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 only, |
| * as published by the Free Software Foundation. |
| * |
| * Lustre is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| * See the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| /** |
| * \file lustre_dlm_flags.h |
| * The flags and collections of flags (masks) for \see struct ldlm_lock. |
| * |
| * \addtogroup LDLM Lustre Distributed Lock Manager |
| * @{ |
| * |
| * \name flags |
| * The flags and collections of flags (masks) for \see struct ldlm_lock. |
| * @{ |
| */ |
| #ifndef LDLM_ALL_FLAGS_MASK |
| |
| /** l_flags bits marked as "all_flags" bits */ |
| #define LDLM_FL_ALL_FLAGS_MASK 0x00FFFFFFC08F932FULL |
| |
| /** extent, mode, or resource changed */ |
| #define LDLM_FL_LOCK_CHANGED 0x0000000000000001ULL /* bit 0 */ |
| #define ldlm_is_lock_changed(_l) LDLM_TEST_FLAG((_l), 1ULL << 0) |
| #define ldlm_set_lock_changed(_l) LDLM_SET_FLAG((_l), 1ULL << 0) |
| #define ldlm_clear_lock_changed(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 0) |
| |
| /** |
| * Server placed lock on granted list, or a recovering client wants the |
| * lock added to the granted list, no questions asked. |
| */ |
| #define LDLM_FL_BLOCK_GRANTED 0x0000000000000002ULL /* bit 1 */ |
| #define ldlm_is_block_granted(_l) LDLM_TEST_FLAG((_l), 1ULL << 1) |
| #define ldlm_set_block_granted(_l) LDLM_SET_FLAG((_l), 1ULL << 1) |
| #define ldlm_clear_block_granted(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 1) |
| |
| /** |
| * Server placed lock on conv list, or a recovering client wants the lock |
| * added to the conv list, no questions asked. |
| */ |
| #define LDLM_FL_BLOCK_CONV 0x0000000000000004ULL /* bit 2 */ |
| #define ldlm_is_block_conv(_l) LDLM_TEST_FLAG((_l), 1ULL << 2) |
| #define ldlm_set_block_conv(_l) LDLM_SET_FLAG((_l), 1ULL << 2) |
| #define ldlm_clear_block_conv(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 2) |
| |
| /** |
| * Server placed lock on wait list, or a recovering client wants the lock |
| * added to the wait list, no questions asked. |
| */ |
| #define LDLM_FL_BLOCK_WAIT 0x0000000000000008ULL /* bit 3 */ |
| #define ldlm_is_block_wait(_l) LDLM_TEST_FLAG((_l), 1ULL << 3) |
| #define ldlm_set_block_wait(_l) LDLM_SET_FLAG((_l), 1ULL << 3) |
| #define ldlm_clear_block_wait(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 3) |
| |
| /** blocking or cancel packet was queued for sending. */ |
| #define LDLM_FL_AST_SENT 0x0000000000000020ULL /* bit 5 */ |
| #define ldlm_is_ast_sent(_l) LDLM_TEST_FLAG((_l), 1ULL << 5) |
| #define ldlm_set_ast_sent(_l) LDLM_SET_FLAG((_l), 1ULL << 5) |
| #define ldlm_clear_ast_sent(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 5) |
| |
| /** |
| * Lock is being replayed. This could probably be implied by the fact that |
| * one of BLOCK_{GRANTED,CONV,WAIT} is set, but that is pretty dangerous. |
| */ |
| #define LDLM_FL_REPLAY 0x0000000000000100ULL /* bit 8 */ |
| #define ldlm_is_replay(_l) LDLM_TEST_FLAG((_l), 1ULL << 8) |
| #define ldlm_set_replay(_l) LDLM_SET_FLAG((_l), 1ULL << 8) |
| #define ldlm_clear_replay(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 8) |
| |
| /** Don't grant lock, just do intent. */ |
| #define LDLM_FL_INTENT_ONLY 0x0000000000000200ULL /* bit 9 */ |
| #define ldlm_is_intent_only(_l) LDLM_TEST_FLAG((_l), 1ULL << 9) |
| #define ldlm_set_intent_only(_l) LDLM_SET_FLAG((_l), 1ULL << 9) |
| #define ldlm_clear_intent_only(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 9) |
| |
| /** lock request has intent */ |
| #define LDLM_FL_HAS_INTENT 0x0000000000001000ULL /* bit 12 */ |
| #define ldlm_is_has_intent(_l) LDLM_TEST_FLAG((_l), 1ULL << 12) |
| #define ldlm_set_has_intent(_l) LDLM_SET_FLAG((_l), 1ULL << 12) |
| #define ldlm_clear_has_intent(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 12) |
| |
| /** flock deadlock detected */ |
| #define LDLM_FL_FLOCK_DEADLOCK 0x0000000000008000ULL /* bit 15 */ |
| #define ldlm_is_flock_deadlock(_l) LDLM_TEST_FLAG((_l), 1ULL << 15) |
| #define ldlm_set_flock_deadlock(_l) LDLM_SET_FLAG((_l), 1ULL << 15) |
| #define ldlm_clear_flock_deadlock(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 15) |
| |
| /** discard (no writeback) on cancel */ |
| #define LDLM_FL_DISCARD_DATA 0x0000000000010000ULL /* bit 16 */ |
| #define ldlm_is_discard_data(_l) LDLM_TEST_FLAG((_l), 1ULL << 16) |
| #define ldlm_set_discard_data(_l) LDLM_SET_FLAG((_l), 1ULL << 16) |
| #define ldlm_clear_discard_data(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 16) |
| |
| /** Blocked by group lock - wait indefinitely */ |
| #define LDLM_FL_NO_TIMEOUT 0x0000000000020000ULL /* bit 17 */ |
| #define ldlm_is_no_timeout(_l) LDLM_TEST_FLAG((_l), 1ULL << 17) |
| #define ldlm_set_no_timeout(_l) LDLM_SET_FLAG((_l), 1ULL << 17) |
| #define ldlm_clear_no_timeout(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 17) |
| |
| /** |
| * Server told not to wait if blocked. For AGL, OST will not send glimpse |
| * callback. |
| */ |
| #define LDLM_FL_BLOCK_NOWAIT 0x0000000000040000ULL /* bit 18 */ |
| #define ldlm_is_block_nowait(_l) LDLM_TEST_FLAG((_l), 1ULL << 18) |
| #define ldlm_set_block_nowait(_l) LDLM_SET_FLAG((_l), 1ULL << 18) |
| #define ldlm_clear_block_nowait(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 18) |
| |
| /** return blocking lock */ |
| #define LDLM_FL_TEST_LOCK 0x0000000000080000ULL /* bit 19 */ |
| #define ldlm_is_test_lock(_l) LDLM_TEST_FLAG((_l), 1ULL << 19) |
| #define ldlm_set_test_lock(_l) LDLM_SET_FLAG((_l), 1ULL << 19) |
| #define ldlm_clear_test_lock(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 19) |
| |
| /** |
| * Immediately cancel such locks when they block some other locks. Send |
| * cancel notification to original lock holder, but expect no reply. This |
| * is for clients (like liblustre) that cannot be expected to reliably |
| * response to blocking AST. |
| */ |
| #define LDLM_FL_CANCEL_ON_BLOCK 0x0000000000800000ULL /* bit 23 */ |
| #define ldlm_is_cancel_on_block(_l) LDLM_TEST_FLAG((_l), 1ULL << 23) |
| #define ldlm_set_cancel_on_block(_l) LDLM_SET_FLAG((_l), 1ULL << 23) |
| #define ldlm_clear_cancel_on_block(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 23) |
| |
| /** |
| * measure lock contention and return -EUSERS if locking contention is high */ |
| #define LDLM_FL_DENY_ON_CONTENTION 0x0000000040000000ULL /* bit 30 */ |
| #define ldlm_is_deny_on_contention(_l) LDLM_TEST_FLAG((_l), 1ULL << 30) |
| #define ldlm_set_deny_on_contention(_l) LDLM_SET_FLAG((_l), 1ULL << 30) |
| #define ldlm_clear_deny_on_contention(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 30) |
| |
| /** |
| * These are flags that are mapped into the flags and ASTs of blocking |
| * locks Add FL_DISCARD to blocking ASTs */ |
| #define LDLM_FL_AST_DISCARD_DATA 0x0000000080000000ULL /* bit 31 */ |
| #define ldlm_is_ast_discard_data(_l) LDLM_TEST_FLAG((_l), 1ULL << 31) |
| #define ldlm_set_ast_discard_data(_l) LDLM_SET_FLAG((_l), 1ULL << 31) |
| #define ldlm_clear_ast_discard_data(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 31) |
| |
| /** |
| * Used for marking lock as a target for -EINTR while cp_ast sleep emulation |
| * + race with upcoming bl_ast. |
| */ |
| #define LDLM_FL_FAIL_LOC 0x0000000100000000ULL /* bit 32 */ |
| #define ldlm_is_fail_loc(_l) LDLM_TEST_FLAG((_l), 1ULL << 32) |
| #define ldlm_set_fail_loc(_l) LDLM_SET_FLAG((_l), 1ULL << 32) |
| #define ldlm_clear_fail_loc(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 32) |
| |
| /** |
| * Used while processing the unused list to know that we have already |
| * handled this lock and decided to skip it. |
| */ |
| #define LDLM_FL_SKIPPED 0x0000000200000000ULL /* bit 33 */ |
| #define ldlm_is_skipped(_l) LDLM_TEST_FLAG((_l), 1ULL << 33) |
| #define ldlm_set_skipped(_l) LDLM_SET_FLAG((_l), 1ULL << 33) |
| #define ldlm_clear_skipped(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 33) |
| |
| /** this lock is being destroyed */ |
| #define LDLM_FL_CBPENDING 0x0000000400000000ULL /* bit 34 */ |
| #define ldlm_is_cbpending(_l) LDLM_TEST_FLAG((_l), 1ULL << 34) |
| #define ldlm_set_cbpending(_l) LDLM_SET_FLAG((_l), 1ULL << 34) |
| #define ldlm_clear_cbpending(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 34) |
| |
| /** not a real flag, not saved in lock */ |
| #define LDLM_FL_WAIT_NOREPROC 0x0000000800000000ULL /* bit 35 */ |
| #define ldlm_is_wait_noreproc(_l) LDLM_TEST_FLAG((_l), 1ULL << 35) |
| #define ldlm_set_wait_noreproc(_l) LDLM_SET_FLAG((_l), 1ULL << 35) |
| #define ldlm_clear_wait_noreproc(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 35) |
| |
| /** cancellation callback already run */ |
| #define LDLM_FL_CANCEL 0x0000001000000000ULL /* bit 36 */ |
| #define ldlm_is_cancel(_l) LDLM_TEST_FLAG((_l), 1ULL << 36) |
| #define ldlm_set_cancel(_l) LDLM_SET_FLAG((_l), 1ULL << 36) |
| #define ldlm_clear_cancel(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 36) |
| |
| /** whatever it might mean -- never transmitted? */ |
| #define LDLM_FL_LOCAL_ONLY 0x0000002000000000ULL /* bit 37 */ |
| #define ldlm_is_local_only(_l) LDLM_TEST_FLAG((_l), 1ULL << 37) |
| #define ldlm_set_local_only(_l) LDLM_SET_FLAG((_l), 1ULL << 37) |
| #define ldlm_clear_local_only(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 37) |
| |
| /** don't run the cancel callback under ldlm_cli_cancel_unused */ |
| #define LDLM_FL_FAILED 0x0000004000000000ULL /* bit 38 */ |
| #define ldlm_is_failed(_l) LDLM_TEST_FLAG((_l), 1ULL << 38) |
| #define ldlm_set_failed(_l) LDLM_SET_FLAG((_l), 1ULL << 38) |
| #define ldlm_clear_failed(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 38) |
| |
| /** lock cancel has already been sent */ |
| #define LDLM_FL_CANCELING 0x0000008000000000ULL /* bit 39 */ |
| #define ldlm_is_canceling(_l) LDLM_TEST_FLAG((_l), 1ULL << 39) |
| #define ldlm_set_canceling(_l) LDLM_SET_FLAG((_l), 1ULL << 39) |
| #define ldlm_clear_canceling(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 39) |
| |
| /** local lock (ie, no srv/cli split) */ |
| #define LDLM_FL_LOCAL 0x0000010000000000ULL /* bit 40 */ |
| #define ldlm_is_local(_l) LDLM_TEST_FLAG((_l), 1ULL << 40) |
| #define ldlm_set_local(_l) LDLM_SET_FLAG((_l), 1ULL << 40) |
| #define ldlm_clear_local(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 40) |
| |
| /** |
| * XXX FIXME: This is being added to b_size as a low-risk fix to the |
| * fact that the LVB filling happens _after_ the lock has been granted, |
| * so another thread can match it before the LVB has been updated. As a |
| * dirty hack, we set LDLM_FL_LVB_READY only after we've done the LVB poop. |
| * this is only needed on LOV/OSC now, where LVB is actually used and |
| * callers must set it in input flags. |
| * |
| * The proper fix is to do the granting inside of the completion AST, |
| * which can be replaced with a LVB-aware wrapping function for OSC locks. |
| * That change is pretty high-risk, though, and would need a lot more |
| * testing. |
| */ |
| #define LDLM_FL_LVB_READY 0x0000020000000000ULL /* bit 41 */ |
| #define ldlm_is_lvb_ready(_l) LDLM_TEST_FLAG((_l), 1ULL << 41) |
| #define ldlm_set_lvb_ready(_l) LDLM_SET_FLAG((_l), 1ULL << 41) |
| #define ldlm_clear_lvb_ready(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 41) |
| |
| /** |
| * A lock contributes to the known minimum size (KMS) calculation until it |
| * has finished the part of its cancellation that performs write back on its |
| * dirty pages. It can remain on the granted list during this whole time. |
| * Threads racing to update the KMS after performing their writeback need |
| * to know to exclude each other's locks from the calculation as they walk |
| * the granted list. |
| */ |
| #define LDLM_FL_KMS_IGNORE 0x0000040000000000ULL /* bit 42 */ |
| #define ldlm_is_kms_ignore(_l) LDLM_TEST_FLAG((_l), 1ULL << 42) |
| #define ldlm_set_kms_ignore(_l) LDLM_SET_FLAG((_l), 1ULL << 42) |
| #define ldlm_clear_kms_ignore(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 42) |
| |
| /** completion AST to be executed */ |
| #define LDLM_FL_CP_REQD 0x0000080000000000ULL /* bit 43 */ |
| #define ldlm_is_cp_reqd(_l) LDLM_TEST_FLAG((_l), 1ULL << 43) |
| #define ldlm_set_cp_reqd(_l) LDLM_SET_FLAG((_l), 1ULL << 43) |
| #define ldlm_clear_cp_reqd(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 43) |
| |
| /** cleanup_resource has already handled the lock */ |
| #define LDLM_FL_CLEANED 0x0000100000000000ULL /* bit 44 */ |
| #define ldlm_is_cleaned(_l) LDLM_TEST_FLAG((_l), 1ULL << 44) |
| #define ldlm_set_cleaned(_l) LDLM_SET_FLAG((_l), 1ULL << 44) |
| #define ldlm_clear_cleaned(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 44) |
| |
| /** |
| * optimization hint: LDLM can run blocking callback from current context |
| * w/o involving separate thread. in order to decrease cs rate |
| */ |
| #define LDLM_FL_ATOMIC_CB 0x0000200000000000ULL /* bit 45 */ |
| #define ldlm_is_atomic_cb(_l) LDLM_TEST_FLAG((_l), 1ULL << 45) |
| #define ldlm_set_atomic_cb(_l) LDLM_SET_FLAG((_l), 1ULL << 45) |
| #define ldlm_clear_atomic_cb(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 45) |
| |
| /** |
| * It may happen that a client initiates two operations, e.g. unlink and |
| * mkdir, such that the server sends a blocking AST for conflicting locks |
| * to this client for the first operation, whereas the second operation |
| * has canceled this lock and is waiting for rpc_lock which is taken by |
| * the first operation. LDLM_FL_BL_AST is set by ldlm_callback_handler() in |
| * the lock to prevent the Early Lock Cancel (ELC) code from cancelling it. |
| */ |
| #define LDLM_FL_BL_AST 0x0000400000000000ULL /* bit 46 */ |
| #define ldlm_is_bl_ast(_l) LDLM_TEST_FLAG((_l), 1ULL << 46) |
| #define ldlm_set_bl_ast(_l) LDLM_SET_FLAG((_l), 1ULL << 46) |
| #define ldlm_clear_bl_ast(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 46) |
| |
| /** |
| * Set by ldlm_cancel_callback() when lock cache is dropped to let |
| * ldlm_callback_handler() return EINVAL to the server. It is used when |
| * ELC RPC is already prepared and is waiting for rpc_lock, too late to |
| * send a separate CANCEL RPC. |
| */ |
| #define LDLM_FL_BL_DONE 0x0000800000000000ULL /* bit 47 */ |
| #define ldlm_is_bl_done(_l) LDLM_TEST_FLAG((_l), 1ULL << 47) |
| #define ldlm_set_bl_done(_l) LDLM_SET_FLAG((_l), 1ULL << 47) |
| #define ldlm_clear_bl_done(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 47) |
| |
| /** |
| * Don't put lock into the LRU list, so that it is not canceled due |
| * to aging. Used by MGC locks, they are cancelled only at unmount or |
| * by callback. |
| */ |
| #define LDLM_FL_NO_LRU 0x0001000000000000ULL /* bit 48 */ |
| #define ldlm_is_no_lru(_l) LDLM_TEST_FLAG((_l), 1ULL << 48) |
| #define ldlm_set_no_lru(_l) LDLM_SET_FLAG((_l), 1ULL << 48) |
| #define ldlm_clear_no_lru(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 48) |
| |
| /** |
| * Set for locks that failed and where the server has been notified. |
| * |
| * Protected by lock and resource locks. |
| */ |
| #define LDLM_FL_FAIL_NOTIFIED 0x0002000000000000ULL /* bit 49 */ |
| #define ldlm_is_fail_notified(_l) LDLM_TEST_FLAG((_l), 1ULL << 49) |
| #define ldlm_set_fail_notified(_l) LDLM_SET_FLAG((_l), 1ULL << 49) |
| #define ldlm_clear_fail_notified(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 49) |
| |
| /** |
| * Set for locks that were removed from class hash table and will |
| * be destroyed when last reference to them is released. Set by |
| * ldlm_lock_destroy_internal(). |
| * |
| * Protected by lock and resource locks. |
| */ |
| #define LDLM_FL_DESTROYED 0x0004000000000000ULL /* bit 50 */ |
| #define ldlm_is_destroyed(_l) LDLM_TEST_FLAG((_l), 1ULL << 50) |
| #define ldlm_set_destroyed(_l) LDLM_SET_FLAG((_l), 1ULL << 50) |
| #define ldlm_clear_destroyed(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 50) |
| |
| /** flag whether this is a server namespace lock */ |
| #define LDLM_FL_SERVER_LOCK 0x0008000000000000ULL /* bit 51 */ |
| #define ldlm_is_server_lock(_l) LDLM_TEST_FLAG((_l), 1ULL << 51) |
| #define ldlm_set_server_lock(_l) LDLM_SET_FLAG((_l), 1ULL << 51) |
| #define ldlm_clear_server_lock(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 51) |
| |
| /** |
| * It's set in lock_res_and_lock() and unset in unlock_res_and_lock(). |
| * |
| * NB: compared with check_res_locked(), checking this bit is cheaper. |
| * Also, spin_is_locked() is deprecated for kernel code; one reason is |
| * because it works only for SMP so user needs to add extra macros like |
| * LASSERT_SPIN_LOCKED for uniprocessor kernels. |
| */ |
| #define LDLM_FL_RES_LOCKED 0x0010000000000000ULL /* bit 52 */ |
| #define ldlm_is_res_locked(_l) LDLM_TEST_FLAG((_l), 1ULL << 52) |
| #define ldlm_set_res_locked(_l) LDLM_SET_FLAG((_l), 1ULL << 52) |
| #define ldlm_clear_res_locked(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 52) |
| |
| /** |
| * It's set once we call ldlm_add_waiting_lock_res_locked() to start the |
| * lock-timeout timer and it will never be reset. |
| * |
| * Protected by lock and resource locks. |
| */ |
| #define LDLM_FL_WAITED 0x0020000000000000ULL /* bit 53 */ |
| #define ldlm_is_waited(_l) LDLM_TEST_FLAG((_l), 1ULL << 53) |
| #define ldlm_set_waited(_l) LDLM_SET_FLAG((_l), 1ULL << 53) |
| #define ldlm_clear_waited(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 53) |
| |
| /** Flag whether this is a server namespace lock. */ |
| #define LDLM_FL_NS_SRV 0x0040000000000000ULL /* bit 54 */ |
| #define ldlm_is_ns_srv(_l) LDLM_TEST_FLAG((_l), 1ULL << 54) |
| #define ldlm_set_ns_srv(_l) LDLM_SET_FLAG((_l), 1ULL << 54) |
| #define ldlm_clear_ns_srv(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 54) |
| |
| /** Flag whether this lock can be reused. Used by exclusive open. */ |
| #define LDLM_FL_EXCL 0x0080000000000000ULL /* bit 55 */ |
| #define ldlm_is_excl(_l) LDLM_TEST_FLAG((_l), 1ULL << 55) |
| #define ldlm_set_excl(_l) LDLM_SET_FLAG((_l), 1ULL << 55) |
| #define ldlm_clear_excl(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 55) |
| |
| /** l_flags bits marked as "ast" bits */ |
| #define LDLM_FL_AST_MASK (LDLM_FL_FLOCK_DEADLOCK |\ |
| LDLM_FL_AST_DISCARD_DATA) |
| |
| /** l_flags bits marked as "blocked" bits */ |
| #define LDLM_FL_BLOCKED_MASK (LDLM_FL_BLOCK_GRANTED |\ |
| LDLM_FL_BLOCK_CONV |\ |
| LDLM_FL_BLOCK_WAIT) |
| |
| /** l_flags bits marked as "gone" bits */ |
| #define LDLM_FL_GONE_MASK (LDLM_FL_DESTROYED |\ |
| LDLM_FL_FAILED) |
| |
| /** l_flags bits marked as "inherit" bits */ |
| /* Flags inherited from wire on enqueue/reply between client/server. */ |
| /* NO_TIMEOUT flag to force ldlm_lock_match() to wait with no timeout. */ |
| /* TEST_LOCK flag to not let TEST lock to be granted. */ |
| #define LDLM_FL_INHERIT_MASK (LDLM_FL_CANCEL_ON_BLOCK |\ |
| LDLM_FL_NO_TIMEOUT |\ |
| LDLM_FL_TEST_LOCK) |
| |
| /** test for ldlm_lock flag bit set */ |
| #define LDLM_TEST_FLAG(_l, _b) (((_l)->l_flags & (_b)) != 0) |
| |
| /** multi-bit test: are any of mask bits set? */ |
| #define LDLM_HAVE_MASK(_l, _m) ((_l)->l_flags & LDLM_FL_##_m##_MASK) |
| |
| /** set a ldlm_lock flag bit */ |
| #define LDLM_SET_FLAG(_l, _b) ((_l)->l_flags |= (_b)) |
| |
| /** clear a ldlm_lock flag bit */ |
| #define LDLM_CLEAR_FLAG(_l, _b) ((_l)->l_flags &= ~(_b)) |
| |
| /** @} subgroup */ |
| /** @} group */ |
| |
| #endif /* LDLM_ALL_FLAGS_MASK */ |
