/* -*- buffer-read-only: t -*- vi: set ro:
*
- * DO NOT EDIT THIS FILE (lustre_dlm_flags.h)
+ * 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.
*
- * It has been AutoGen-ed
- * From the definitions lustre_dlm_flags.def
- * and the template file lustre_dlm_flags.tpl
- *
- * lustre is free software: you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * lustre is distributed in the hope that it will be useful, but
+ * 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.
/**
* \file lustre_dlm_flags.h
* The flags and collections of flags (masks) for \see struct ldlm_lock.
- * This file is derived from flag definitions in lustre_dlm_flags.def.
- * The format is defined in the lustre_dlm_flags.tpl template file.
*
* \addtogroup LDLM Lustre Distributed Lock Manager
* @{
#ifndef LDLM_ALL_FLAGS_MASK
/** l_flags bits marked as "all_flags" bits */
-#define LDLM_FL_ALL_FLAGS_MASK 0x007FFFFFC08F132FULL
-
-/** l_flags bits marked as "ast" bits */
-#define LDLM_FL_AST_MASK 0x0000000080000000ULL
-
-/** l_flags bits marked as "blocked" bits */
-#define LDLM_FL_BLOCKED_MASK 0x000000000000000EULL
-
-/** l_flags bits marked as "gone" bits */
-#define LDLM_FL_GONE_MASK 0x0006004000000000ULL
-
-/** l_flags bits marked as "hide_lock" bits */
-#define LDLM_FL_HIDE_LOCK_MASK 0x0000206400000000ULL
-
-/** l_flags bits marked as "inherit" bits */
-#define LDLM_FL_INHERIT_MASK 0x0000000000800000ULL
-
-/** l_flags bits marked as "local_only" bits */
-#define LDLM_FL_LOCAL_ONLY_MASK 0x007FFFFF00000000ULL
-
-/** l_flags bits marked as "on_wire" bits */
-#define LDLM_FL_ON_WIRE_MASK 0x00000000C08F132FULL
+#define LDLM_FL_ALL_FLAGS_MASK 0x00FFFFFFC08F932FULL
/** extent, mode, or resource changed */
#define LDLM_FL_LOCK_CHANGED 0x0000000000000001ULL // bit 0
#define ldlm_set_block_wait(_l) LDLM_SET_FLAG(( _l), 1ULL << 3)
#define ldlm_clear_block_wait(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 3)
+/**
+ * Lock request is speculative/asynchronous, and cannot wait for any reason.
+ * Fail the lock request if any blocking locks are encountered.
+ * */
+#define LDLM_FL_SPECULATIVE 0x0000000000000010ULL /* bit 4 */
+#define ldlm_is_speculative(_l) LDLM_TEST_FLAG((_l), 1ULL << 4)
+#define ldlm_set_speculative(_l) LDLM_SET_FLAG((_l), 1ULL << 4)
+#define ldlm_clear_specualtive_(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 4)
+
/** 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_has_intent(_l) LDLM_SET_FLAG(( _l), 1ULL << 12)
#define ldlm_clear_has_intent(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 12)
-/** discard (no writeback) on cancel */
+/** 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 (PW locks) or page retention (PR locks)) 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_set_test_lock(_l) LDLM_SET_FLAG(( _l), 1ULL << 19)
#define ldlm_clear_test_lock(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 19)
+/** match lock only */
+#define LDLM_FL_MATCH_LOCK 0x0000000000100000ULL // bit 20
+
/**
* Immediatelly cancel such locks when they block some other locks. Send
* cancel notification to original lock holder, but expect no reply. This
#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)
+/** Flag whether a lock is enqueued from a distributed transaction, and the
+ * requesting lock mode is PW/EX, if so, it will check compatibility with COS
+ * locks, and different from original COS semantic, transactions from the same
+ * client is also treated as lock conflict. */
+#define LDLM_FL_COS_INCOMPAT 0x0000000001000000ULL /* bit 24 */
+#define ldlm_is_cos_incompat(_l) LDLM_TEST_FLAG((_l), 1ULL << 24)
+#define ldlm_set_cos_incompat(_l) LDLM_SET_FLAG((_l), 1ULL << 24)
+#define ldlm_clear_cos_incompat(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 24)
+
+/**
+ * Part of original lockahead implementation, OBD_CONNECT_LOCKAHEAD_OLD.
+ * Reserved temporarily to allow those implementations to keep working.
+ * Will be removed after 2.12 release.
+ * */
+#define LDLM_FL_LOCKAHEAD_OLD_RESERVED 0x0000000010000000ULL /* bit 28 */
+#define ldlm_is_do_not_expand_io(_l) LDLM_TEST_FLAG((_l), 1ULL << 28)
+#define ldlm_set_do_not_expand_io(_l) LDLM_SET_FLAG((_l), 1ULL << 28)
+#define ldlm_clear_do_not_expand_io(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 28)
+
+/**
+ * Do not expand this lock. Grant it only on the extent requested.
+ * Used for manually requested locks from the client (LU_LADVISE_LOCKAHEAD).
+ * */
+#define LDLM_FL_NO_EXPANSION 0x0000000020000000ULL /* bit 29 */
+#define ldlm_is_do_not_expand(_l) LDLM_TEST_FLAG((_l), 1ULL << 29)
+#define ldlm_set_do_not_expand(_l) LDLM_SET_FLAG((_l), 1ULL << 29)
+#define ldlm_clear_do_not_expand(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 29)
+
/**
* measure lock contention and return -EUSERS if locking contention is high */
#define LDLM_FL_DENY_ON_CONTENTION 0x0000000040000000ULL // bit 30
#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 */
+/** 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)
* 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.
- *
- * LDLM_FL_BL_DONE is to be 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. */
+ * 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)
-/** whatever it might mean */
+/**
+ * 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_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)
+
+/** Flag whether a lock is found on server for re-sent RPC. */
+#define LDLM_FL_RESENT 0x0100000000000000ULL // bit 56
+
+/** Flag whether Commit-on-Sharing is enabled, if LDLM_FL_COS_INCOMPAT is set
+ * this flag may not be set because once the former is set this flag won't be
+ * checked, and for cross-MDT lock COS_INCOMPAT is always set but ast handle is
+ * in ldlm context which doesn't know whether COS is enabled or not. */
+#define LDLM_FL_COS_ENABLED 0x0200000000000000ULL /* bit 57 */
+#define ldlm_is_cos_enabled(_l) LDLM_TEST_FLAG((_l), 1ULL << 57)
+#define ldlm_set_cos_enabled(_l) LDLM_SET_FLAG((_l), 1ULL << 57)
+
+/** 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.
+ * CANCEL_ON_BLOCK so server will not grant if a blocking lock is found
+ * NO_TIMEOUT flag to force ldlm_lock_match() to wait with no timeout.
+ * TEST_LOCK flag to not let TEST lock to be granted.
+ * NO_EXPANSION to tell server not to expand extent of lock request */
+#define LDLM_FL_INHERIT_MASK (LDLM_FL_CANCEL_ON_BLOCK |\
+ LDLM_FL_NO_TIMEOUT |\
+ LDLM_FL_TEST_LOCK |\
+ LDLM_FL_NO_EXPANSION)
+
+/** flags returned in @flags parameter on ldlm_lock_enqueue,
+ * to be re-constructed on re-send */
+#define LDLM_FL_SRV_ENQ_MASK (LDLM_FL_LOCK_CHANGED |\
+ LDLM_FL_BLOCKED_MASK |\
+ LDLM_FL_NO_TIMEOUT)
+
/** test for ldlm_lock flag bit set */
-#define LDLM_TEST_FLAG(_l, _b) (((_l)->l_flags & (_b)) != 0)
+#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) != 0)
/** set a ldlm_lock flag bit */
-#define LDLM_SET_FLAG(_l, _b) (((_l)->l_flags |= (_b))
+#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))
-
-/** Mask of flags inherited from parent lock when doing intents. */
-#define LDLM_INHERIT_FLAGS LDLM_FL_INHERIT_MASK
-
-/** Mask of Flags sent in AST lock_flags to map into the receiving lock. */
-#define LDLM_AST_FLAGS LDLM_FL_AST_MASK
+#define LDLM_CLEAR_FLAG(_l, _b) ((_l)->l_flags &= ~(_b))
/** @} subgroup */
/** @} group */
-#ifdef WIRESHARK_COMPILE
-static int hf_lustre_ldlm_fl_lock_changed = -1;
-static int hf_lustre_ldlm_fl_block_granted = -1;
-static int hf_lustre_ldlm_fl_block_conv = -1;
-static int hf_lustre_ldlm_fl_block_wait = -1;
-static int hf_lustre_ldlm_fl_ast_sent = -1;
-static int hf_lustre_ldlm_fl_replay = -1;
-static int hf_lustre_ldlm_fl_intent_only = -1;
-static int hf_lustre_ldlm_fl_has_intent = -1;
-static int hf_lustre_ldlm_fl_discard_data = -1;
-static int hf_lustre_ldlm_fl_no_timeout = -1;
-static int hf_lustre_ldlm_fl_block_nowait = -1;
-static int hf_lustre_ldlm_fl_test_lock = -1;
-static int hf_lustre_ldlm_fl_cancel_on_block = -1;
-static int hf_lustre_ldlm_fl_deny_on_contention = -1;
-static int hf_lustre_ldlm_fl_ast_discard_data = -1;
-static int hf_lustre_ldlm_fl_fail_loc = -1;
-static int hf_lustre_ldlm_fl_skipped = -1;
-static int hf_lustre_ldlm_fl_cbpending = -1;
-static int hf_lustre_ldlm_fl_wait_noreproc = -1;
-static int hf_lustre_ldlm_fl_cancel = -1;
-static int hf_lustre_ldlm_fl_local_only = -1;
-static int hf_lustre_ldlm_fl_failed = -1;
-static int hf_lustre_ldlm_fl_canceling = -1;
-static int hf_lustre_ldlm_fl_local = -1;
-static int hf_lustre_ldlm_fl_lvb_ready = -1;
-static int hf_lustre_ldlm_fl_kms_ignore = -1;
-static int hf_lustre_ldlm_fl_cp_reqd = -1;
-static int hf_lustre_ldlm_fl_cleaned = -1;
-static int hf_lustre_ldlm_fl_atomic_cb = -1;
-static int hf_lustre_ldlm_fl_bl_ast = -1;
-static int hf_lustre_ldlm_fl_bl_done = -1;
-static int hf_lustre_ldlm_fl_no_lru = -1;
-static int hf_lustre_ldlm_fl_fail_notified = -1;
-static int hf_lustre_ldlm_fl_destroyed = -1;
-static int hf_lustre_ldlm_fl_server_lock = -1;
-static int hf_lustre_ldlm_fl_res_locked = -1;
-static int hf_lustre_ldlm_fl_waited = -1;
-static int hf_lustre_ldlm_fl_ns_srv = -1;
-
-const value_string lustre_ldlm_flags_vals[] = {
- {LDLM_FL_LOCK_CHANGED, "LDLM_FL_LOCK_CHANGED"},
- {LDLM_FL_BLOCK_GRANTED, "LDLM_FL_BLOCK_GRANTED"},
- {LDLM_FL_BLOCK_CONV, "LDLM_FL_BLOCK_CONV"},
- {LDLM_FL_BLOCK_WAIT, "LDLM_FL_BLOCK_WAIT"},
- {LDLM_FL_AST_SENT, "LDLM_FL_AST_SENT"},
- {LDLM_FL_REPLAY, "LDLM_FL_REPLAY"},
- {LDLM_FL_INTENT_ONLY, "LDLM_FL_INTENT_ONLY"},
- {LDLM_FL_HAS_INTENT, "LDLM_FL_HAS_INTENT"},
- {LDLM_FL_DISCARD_DATA, "LDLM_FL_DISCARD_DATA"},
- {LDLM_FL_NO_TIMEOUT, "LDLM_FL_NO_TIMEOUT"},
- {LDLM_FL_BLOCK_NOWAIT, "LDLM_FL_BLOCK_NOWAIT"},
- {LDLM_FL_TEST_LOCK, "LDLM_FL_TEST_LOCK"},
- {LDLM_FL_CANCEL_ON_BLOCK, "LDLM_FL_CANCEL_ON_BLOCK"},
- {LDLM_FL_DENY_ON_CONTENTION, "LDLM_FL_DENY_ON_CONTENTION"},
- {LDLM_FL_AST_DISCARD_DATA, "LDLM_FL_AST_DISCARD_DATA"},
- {LDLM_FL_FAIL_LOC, "LDLM_FL_FAIL_LOC"},
- {LDLM_FL_SKIPPED, "LDLM_FL_SKIPPED"},
- {LDLM_FL_CBPENDING, "LDLM_FL_CBPENDING"},
- {LDLM_FL_WAIT_NOREPROC, "LDLM_FL_WAIT_NOREPROC"},
- {LDLM_FL_CANCEL, "LDLM_FL_CANCEL"},
- {LDLM_FL_LOCAL_ONLY, "LDLM_FL_LOCAL_ONLY"},
- {LDLM_FL_FAILED, "LDLM_FL_FAILED"},
- {LDLM_FL_CANCELING, "LDLM_FL_CANCELING"},
- {LDLM_FL_LOCAL, "LDLM_FL_LOCAL"},
- {LDLM_FL_LVB_READY, "LDLM_FL_LVB_READY"},
- {LDLM_FL_KMS_IGNORE, "LDLM_FL_KMS_IGNORE"},
- {LDLM_FL_CP_REQD, "LDLM_FL_CP_REQD"},
- {LDLM_FL_CLEANED, "LDLM_FL_CLEANED"},
- {LDLM_FL_ATOMIC_CB, "LDLM_FL_ATOMIC_CB"},
- {LDLM_FL_BL_AST, "LDLM_FL_BL_AST"},
- {LDLM_FL_BL_DONE, "LDLM_FL_BL_DONE"},
- {LDLM_FL_NO_LRU, "LDLM_FL_NO_LRU"},
- {LDLM_FL_FAIL_NOTIFIED, "LDLM_FL_FAIL_NOTIFIED"},
- {LDLM_FL_DESTROYED, "LDLM_FL_DESTROYED"},
- {LDLM_FL_SERVER_LOCK, "LDLM_FL_SERVER_LOCK"},
- {LDLM_FL_RES_LOCKED, "LDLM_FL_RES_LOCKED"},
- {LDLM_FL_WAITED, "LDLM_FL_WAITED"},
- {LDLM_FL_NS_SRV, "LDLM_FL_NS_SRV"},
- { 0, NULL }
-};
-#endif /* WIRESHARK_COMPILE */
#endif /* LDLM_ALL_FLAGS_MASK */
+
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