/* -*- 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 0x00FFFFFFC08F932FULL
-
-/** l_flags bits marked as "ast" bits */
-#define LDLM_FL_AST_MASK 0x0000000080008000ULL
-
-/** 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 "inherit" bits */
-#define LDLM_FL_INHERIT_MASK 0x0000000000800000ULL
-
-/** l_flags bits marked as "off_wire" bits */
-#define LDLM_FL_OFF_WIRE_MASK 0x00FFFFFF00000000ULL
-
-/** l_flags bits marked as "on_wire" bits */
-#define LDLM_FL_ON_WIRE_MASK 0x00000000C08F932FULL
+#define LDLM_FL_ALL_FLAGS_MASK 0x00FFFFFFC28F932FULL
/** extent, mode, or resource changed */
#define LDLM_FL_LOCK_CHANGED 0x0000000000000001ULL // bit 0
/**
* Server placed lock on conv list, or a recovering client wants the lock
- * added to the conv list, no questions asked. */
+ * added to the conv list, no questions asked. (obsoleted) */
#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_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_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 */
+/** 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)
+
+/*
+ * Flag indicates that lock is being converted (downgraded) during the blocking
+ * AST instead of cancelling. Used for IBITS locks now and drops conflicting
+ * bits only keepeing other.
+ */
+#define LDLM_FL_CONVERTING 0x0000000002000000ULL /* bit 25 */
+#define ldlm_is_converting(_l) LDLM_TEST_FLAG((_l), 1ULL << 25)
+#define ldlm_set_converting(_l) LDLM_SET_FLAG((_l), 1ULL << 25)
+#define ldlm_clear_converting(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 25)
+
+/**
+ * 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_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_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)
+
+/**
+ * This flags means to use non-delay RPC to send dlm request RPC.
+ */
+#define LDLM_FL_NDELAY 0x0400000000000000ULL /* bit 58 */
+#define ldlm_is_ndelay(_l) LDLM_TEST_FLAG((_l), 1ULL << 58)
+#define ldlm_set_ndelay(_l) LDLM_SET_FLAG((_l), 1ULL << 58)
+
+/**
+ * LVB from this lock is cached in osc object
+ */
+#define LDLM_FL_LVB_CACHED 0x0800000000000000ULL /* bit 59 */
+#define ldlm_is_lvb_cached(_l) LDLM_TEST_FLAG((_l), 1ULL << 59)
+#define ldlm_set_lvb_cached(_l) LDLM_SET_FLAG((_l), 1ULL << 59)
+#define ldlm_clear_lvb_cached(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 59)
+
+/** l_flags bits marked as "ast" bits */
+#define LDLM_FL_AST_MASK (LDLM_FL_FLOCK_DEADLOCK |\
+ LDLM_FL_DISCARD_DATA)
+
+/** l_flags bits marked as "blocked" bits */
+#define LDLM_FL_BLOCKED_MASK (LDLM_FL_BLOCK_GRANTED |\
+ 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)
git://git.whamcloud.com / fs / lustre-release.git / blobdiff