Lines Matching +full:first +full:- +full:generation
1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
4 * Copyright 2004-2011 Red Hat, Inc.
26 * gfs2_update_stats - Update time based stats
49 s64 delta = sample - s->stats[index]; in gfs2_update_stats()
50 s->stats[index] += (delta >> 3); in gfs2_update_stats()
52 s->stats[index] += (s64)(abs(delta) - s->stats[index]) >> 2; in gfs2_update_stats()
56 * gfs2_update_reply_times - Update locking statistics
59 * This assumes that gl->gl_dstamp has been set earlier.
69 * TRY_1CB flags are set are classified as non-blocking. All
75 const unsigned gltype = gl->gl_name.ln_type; in gfs2_update_reply_times()
76 unsigned index = test_bit(GLF_BLOCKING, &gl->gl_flags) ? in gfs2_update_reply_times()
81 rtt = ktime_to_ns(ktime_sub(ktime_get_real(), gl->gl_dstamp)); in gfs2_update_reply_times()
82 lks = this_cpu_ptr(gl->gl_name.ln_sbd->sd_lkstats); in gfs2_update_reply_times()
83 gfs2_update_stats(&gl->gl_stats, index, rtt); /* Local */ in gfs2_update_reply_times()
84 gfs2_update_stats(&lks->lkstats[gltype], index, rtt); /* Global */ in gfs2_update_reply_times()
91 * gfs2_update_request_times - Update locking statistics
94 * The irt (lock inter-request times) measures the average time
102 const unsigned gltype = gl->gl_name.ln_type; in gfs2_update_request_times()
107 dstamp = gl->gl_dstamp; in gfs2_update_request_times()
108 gl->gl_dstamp = ktime_get_real(); in gfs2_update_request_times()
109 irt = ktime_to_ns(ktime_sub(gl->gl_dstamp, dstamp)); in gfs2_update_request_times()
110 lks = this_cpu_ptr(gl->gl_name.ln_sbd->sd_lkstats); in gfs2_update_request_times()
111 gfs2_update_stats(&gl->gl_stats, GFS2_LKS_SIRT, irt); /* Local */ in gfs2_update_request_times()
112 gfs2_update_stats(&lks->lkstats[gltype], GFS2_LKS_SIRT, irt); /* Global */ in gfs2_update_request_times()
119 unsigned ret = gl->gl_state; in gdlm_ast()
122 BUG_ON(gl->gl_lksb.sb_flags & DLM_SBF_DEMOTED); in gdlm_ast()
124 if ((gl->gl_lksb.sb_flags & DLM_SBF_VALNOTVALID) && gl->gl_lksb.sb_lvbptr) in gdlm_ast()
125 memset(gl->gl_lksb.sb_lvbptr, 0, GDLM_LVB_SIZE); in gdlm_ast()
127 switch (gl->gl_lksb.sb_status) { in gdlm_ast()
128 case -DLM_EUNLOCK: /* Unlocked, so glock can be freed */ in gdlm_ast()
129 if (gl->gl_ops->go_free) in gdlm_ast()
130 gl->gl_ops->go_free(gl); in gdlm_ast()
133 case -DLM_ECANCEL: /* Cancel while getting lock */ in gdlm_ast()
136 case -EAGAIN: /* Try lock fails */ in gdlm_ast()
137 case -EDEADLK: /* Deadlock detected */ in gdlm_ast()
139 case -ETIMEDOUT: /* Canceled due to timeout */ in gdlm_ast()
148 ret = gl->gl_req; in gdlm_ast()
149 if (gl->gl_lksb.sb_flags & DLM_SBF_ALTMODE) { in gdlm_ast()
150 if (gl->gl_req == LM_ST_SHARED) in gdlm_ast()
152 else if (gl->gl_req == LM_ST_DEFERRED) in gdlm_ast()
158 set_bit(GLF_INITIAL, &gl->gl_flags); in gdlm_ast()
162 if (!test_bit(GLF_INITIAL, &gl->gl_flags)) in gdlm_ast()
163 gl->gl_lksb.sb_lkid = 0; in gdlm_ast()
182 fs_err(gl->gl_name.ln_sbd, "unknown bast mode %d\n", mode); in gdlm_bast()
187 /* convert gfs lock-state to dlm lock-mode */
203 return -1; in make_mode()
211 if (gl->gl_lksb.sb_lvbptr) in make_flags()
236 if (gl->gl_lksb.sb_lkid != 0) { in make_flags()
238 if (test_bit(GLF_BLOCKING, &gl->gl_flags)) in make_flags()
249 *c-- = hex_asc[value & 0x0f]; in gfs2_reverse_hex()
257 struct lm_lockstruct *ls = &gl->gl_name.ln_sbd->sd_lockstruct; in gdlm_lock()
262 req = make_mode(gl->gl_name.ln_sbd, req_state); in gdlm_lock()
266 if (gl->gl_lksb.sb_lkid) { in gdlm_lock()
269 memset(strname, ' ', GDLM_STRNAME_BYTES - 1); in gdlm_lock()
270 strname[GDLM_STRNAME_BYTES - 1] = '\0'; in gdlm_lock()
271 gfs2_reverse_hex(strname + 7, gl->gl_name.ln_type); in gdlm_lock()
272 gfs2_reverse_hex(strname + 23, gl->gl_name.ln_number); in gdlm_lock()
273 gl->gl_dstamp = ktime_get_real(); in gdlm_lock()
279 return dlm_lock(ls->ls_dlm, req, &gl->gl_lksb, lkf, strname, in gdlm_lock()
280 GDLM_STRNAME_BYTES - 1, 0, gdlm_ast, gl, gdlm_bast); in gdlm_lock()
285 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd; in gdlm_put_lock()
286 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gdlm_put_lock()
289 if (gl->gl_lksb.sb_lkid == 0) { in gdlm_put_lock()
294 clear_bit(GLF_BLOCKING, &gl->gl_flags); in gdlm_put_lock()
300 if (test_bit(DFL_UNMOUNT, &ls->ls_recover_flags)) { in gdlm_put_lock()
306 if (test_bit(SDF_SKIP_DLM_UNLOCK, &sdp->sd_flags) && in gdlm_put_lock()
307 !gl->gl_lksb.sb_lvbptr) { in gdlm_put_lock()
312 error = dlm_unlock(ls->ls_dlm, gl->gl_lksb.sb_lkid, DLM_LKF_VALBLK, in gdlm_put_lock()
316 gl->gl_name.ln_type, in gdlm_put_lock()
317 (unsigned long long)gl->gl_name.ln_number, error); in gdlm_put_lock()
324 struct lm_lockstruct *ls = &gl->gl_name.ln_sbd->sd_lockstruct; in gdlm_cancel()
325 dlm_unlock(ls->ls_dlm, gl->gl_lksb.sb_lkid, DLM_LKF_CANCEL, NULL, gl); in gdlm_cancel()
333 * 2. dlm_controld blocks dlm-kernel locking activity
334 * 3. dlm_controld within dlm-kernel notifies gfs2 (recover_prep)
336 * 5. dlm_controld starts dlm-kernel dlm_recoverd to do kernel recovery
339 * 8. dlm_recoverd unblocks dlm-kernel locking activity
340 * 9. dlm_recoverd notifies gfs2 when done (recover_done with new generation)
341 * 10. gfs2_control updates control_lock lvb with new generation and jid bits
348 * - failures during recovery
356 * recover_done() provides a new lockspace generation number each time it
357 * is called (step 9). This generation number is saved as recover_start.
363 * - more specific gfs2 steps in sequence above
367 * 9. recover_done sets recover_start = new generation number
375 * - parallel recovery steps across all nodes
377 * All nodes attempt to update the control_lock lvb with the new generation
378 * number and jid bits, but only the first to get the control_lock EX will
380 * generation number.)
384 * . One node gets control_lock first and writes the lvb, others see it's done
389 * - is there a problem with clearing an lvb bit that should be set
404 * for the latest lockspace generation before ever unblocking locks
408 * - special case of first mounter: first node to mount the fs
410 * The first node to mount a gfs2 fs needs to check all the journals
413 * for the first mounter to be done before taking locks on the fs
416 * 1. The mounted_lock tells a node it's the first to mount the fs.
420 * other mounted nodes (no PR locks exist), and it is the first mounter.
421 * The mounted_lock is demoted to PR when first recovery is done, so
424 * 2. The control_lock blocks others in control_mount() while the first
425 * mounter is doing first mount recovery of all journals.
427 * it can proceed. The first mounter holds control_lock in EX while doing
428 * the first mount recovery, blocking mounts from other nodes, then demotes
432 * first mounter:
435 * set first=1
436 * do first mounter recovery
437 * mounted_lock EX->PR
438 * control_lock EX->NL, write lvb generation
441 * control_lock EX/NOQUEUE success (if fail -EAGAIN, retry)
442 * mounted_lock EX/NOQUEUE fail -EAGAIN (expected due to other mounters PR)
444 * read lvb generation
445 * control_lock EX->NL
446 * set first=0
448 * - mount during recovery
450 * If a node mounts while others are doing recovery (not first mounter),
456 * steps above until the lvb generation number is >= its mount generation
459 * - control_lock lvb format
461 * 4 bytes generation number: the latest dlm lockspace generation number
463 * to reflect all slot failures through that generation.
465 * GDLM_LVB_SIZE-8 bytes of jid bit map. If bit N is set, it indicates
469 #define JID_BITMAP_OFFSET 8 /* 4 byte generation number + 4 byte unused */
475 memcpy(lvb_bits, ls->ls_control_lvb, GDLM_LVB_SIZE); in control_lvb_read()
484 memcpy(ls->ls_control_lvb, lvb_bits, GDLM_LVB_SIZE); in control_lvb_write()
486 memcpy(ls->ls_control_lvb, &gen, sizeof(__le32)); in control_lvb_write()
492 GDLM_LVB_SIZE - JID_BITMAP_OFFSET); in all_jid_bits_clear()
498 complete(&ls->ls_sync_wait); in sync_wait_cb()
503 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in sync_unlock()
506 error = dlm_unlock(ls->ls_dlm, lksb->sb_lkid, 0, lksb, ls); in sync_unlock()
509 name, lksb->sb_lkid, error); in sync_unlock()
513 wait_for_completion(&ls->ls_sync_wait); in sync_unlock()
515 if (lksb->sb_status != -DLM_EUNLOCK) { in sync_unlock()
517 name, lksb->sb_lkid, lksb->sb_status); in sync_unlock()
518 return -1; in sync_unlock()
526 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in sync_lock()
533 error = dlm_lock(ls->ls_dlm, mode, lksb, flags, in sync_lock()
534 strname, GDLM_STRNAME_BYTES - 1, in sync_lock()
538 name, lksb->sb_lkid, flags, mode, error); in sync_lock()
542 wait_for_completion(&ls->ls_sync_wait); in sync_lock()
544 status = lksb->sb_status; in sync_lock()
546 if (status && status != -EAGAIN) { in sync_lock()
548 name, lksb->sb_lkid, flags, mode, status); in sync_lock()
556 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in mounted_unlock()
557 return sync_unlock(sdp, &ls->ls_mounted_lksb, "mounted_lock"); in mounted_unlock()
562 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in mounted_lock()
564 &ls->ls_mounted_lksb, "mounted_lock"); in mounted_lock()
569 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in control_unlock()
570 return sync_unlock(sdp, &ls->ls_control_lksb, "control_lock"); in control_unlock()
575 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in control_lock()
577 &ls->ls_control_lksb, "control_lock"); in control_lock()
581 * remote_withdraw - react to a node withdrawing from the file system
589 list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) { in remote_withdraw()
590 if (jd->jd_jid == sdp->sd_lockstruct.ls_jid) in remote_withdraw()
605 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gfs2_control_func()
612 /* First check for other nodes that may have done a withdraw. */ in gfs2_control_func()
613 if (test_bit(SDF_REMOTE_WITHDRAW, &sdp->sd_flags)) { in gfs2_control_func()
615 clear_bit(SDF_REMOTE_WITHDRAW, &sdp->sd_flags); in gfs2_control_func()
619 spin_lock(&ls->ls_recover_spin); in gfs2_control_func()
625 * FIRST_MOUNT means this node is doing first mounter recovery, in gfs2_control_func()
629 if (!test_bit(DFL_MOUNT_DONE, &ls->ls_recover_flags) || in gfs2_control_func()
630 test_bit(DFL_FIRST_MOUNT, &ls->ls_recover_flags)) { in gfs2_control_func()
631 spin_unlock(&ls->ls_recover_spin); in gfs2_control_func()
634 block_gen = ls->ls_recover_block; in gfs2_control_func()
635 start_gen = ls->ls_recover_start; in gfs2_control_func()
636 spin_unlock(&ls->ls_recover_spin); in gfs2_control_func()
654 * yet been updated for the generation of the failure in gfs2_control_func()
666 control_lvb_read(ls, &lvb_gen, ls->ls_lvb_bits); in gfs2_control_func()
668 spin_lock(&ls->ls_recover_spin); in gfs2_control_func()
669 if (block_gen != ls->ls_recover_block || in gfs2_control_func()
670 start_gen != ls->ls_recover_start) { in gfs2_control_func()
671 fs_info(sdp, "recover generation %u block1 %u %u\n", in gfs2_control_func()
672 start_gen, block_gen, ls->ls_recover_block); in gfs2_control_func()
673 spin_unlock(&ls->ls_recover_spin); in gfs2_control_func()
678 recover_size = ls->ls_recover_size; in gfs2_control_func()
685 * in succession. Only the first will really do recovery, in gfs2_control_func()
691 if (ls->ls_recover_result[i] != LM_RD_SUCCESS) in gfs2_control_func()
694 ls->ls_recover_result[i] = 0; in gfs2_control_func()
696 if (!test_bit_le(i, ls->ls_lvb_bits + JID_BITMAP_OFFSET)) in gfs2_control_func()
699 __clear_bit_le(i, ls->ls_lvb_bits + JID_BITMAP_OFFSET); in gfs2_control_func()
709 if (!ls->ls_recover_submit[i]) in gfs2_control_func()
711 if (ls->ls_recover_submit[i] < lvb_gen) in gfs2_control_func()
712 ls->ls_recover_submit[i] = 0; in gfs2_control_func()
719 if (!ls->ls_recover_submit[i]) in gfs2_control_func()
721 if (ls->ls_recover_submit[i] < start_gen) { in gfs2_control_func()
722 ls->ls_recover_submit[i] = 0; in gfs2_control_func()
723 __set_bit_le(i, ls->ls_lvb_bits + JID_BITMAP_OFFSET); in gfs2_control_func()
727 latest generation to the lvb */ in gfs2_control_func()
734 spin_unlock(&ls->ls_recover_spin); in gfs2_control_func()
737 control_lvb_write(ls, start_gen, ls->ls_lvb_bits); in gfs2_control_func()
757 if (test_bit_le(i, ls->ls_lvb_bits + JID_BITMAP_OFFSET)) { in gfs2_control_func()
758 fs_info(sdp, "recover generation %u jid %d\n", in gfs2_control_func()
773 spin_lock(&ls->ls_recover_spin); in gfs2_control_func()
774 if (ls->ls_recover_block == block_gen && in gfs2_control_func()
775 ls->ls_recover_start == start_gen) { in gfs2_control_func()
776 clear_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); in gfs2_control_func()
777 spin_unlock(&ls->ls_recover_spin); in gfs2_control_func()
778 fs_info(sdp, "recover generation %u done\n", start_gen); in gfs2_control_func()
781 fs_info(sdp, "recover generation %u block2 %u %u\n", in gfs2_control_func()
782 start_gen, block_gen, ls->ls_recover_block); in gfs2_control_func()
783 spin_unlock(&ls->ls_recover_spin); in gfs2_control_func()
789 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in control_mount()
795 memset(&ls->ls_mounted_lksb, 0, sizeof(struct dlm_lksb)); in control_mount()
796 memset(&ls->ls_control_lksb, 0, sizeof(struct dlm_lksb)); in control_mount()
797 memset(&ls->ls_control_lvb, 0, GDLM_LVB_SIZE); in control_mount()
798 ls->ls_control_lksb.sb_lvbptr = ls->ls_control_lvb; in control_mount()
799 init_completion(&ls->ls_sync_wait); in control_mount()
801 set_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); in control_mount()
819 error = -EINTR; in control_mount()
850 if (error == -EAGAIN) { in control_mount()
859 * we cannot do the first-mount responsibility it implies: recovery. in control_mount()
861 if (sdp->sd_args.ar_spectator) in control_mount()
868 } else if (error != -EAGAIN) { in control_mount()
878 /* not even -EAGAIN should happen here */ in control_mount()
885 * If we got both locks above in EX, then we're the first mounter. in control_mount()
887 * updated by other mounted nodes to reflect our mount generation. in control_mount()
889 * In simple first mounter cases, first mounter will see zero lvb_gen, in control_mount()
892 * lvb_gen will be non-zero. in control_mount()
895 control_lvb_read(ls, &lvb_gen, ls->ls_lvb_bits); in control_mount()
900 error = -EINVAL; in control_mount()
905 /* first mounter, keep both EX while doing first recovery */ in control_mount()
906 spin_lock(&ls->ls_recover_spin); in control_mount()
907 clear_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); in control_mount()
908 set_bit(DFL_MOUNT_DONE, &ls->ls_recover_flags); in control_mount()
909 set_bit(DFL_FIRST_MOUNT, &ls->ls_recover_flags); in control_mount()
910 spin_unlock(&ls->ls_recover_spin); in control_mount()
911 fs_info(sdp, "first mounter control generation %u\n", lvb_gen); in control_mount()
920 * We are not first mounter, now we need to wait for the control_lock in control_mount()
921 * lvb generation to be >= the generation from our first recover_done in control_mount()
925 if (!all_jid_bits_clear(ls->ls_lvb_bits)) { in control_mount()
931 spin_lock(&ls->ls_recover_spin); in control_mount()
932 block_gen = ls->ls_recover_block; in control_mount()
933 start_gen = ls->ls_recover_start; in control_mount()
934 mount_gen = ls->ls_recover_mount; in control_mount()
938 generation, which might include new recovery bits set */ in control_mount()
939 if (sdp->sd_args.ar_spectator) { in control_mount()
941 "non-spectator to mount.\n"); in control_mount()
947 ls->ls_recover_flags); in control_mount()
949 spin_unlock(&ls->ls_recover_spin); in control_mount()
955 latest recovery generation */ in control_mount()
958 lvb_gen, ls->ls_recover_flags); in control_mount()
959 spin_unlock(&ls->ls_recover_spin); in control_mount()
967 lvb_gen, ls->ls_recover_flags); in control_mount()
968 spin_unlock(&ls->ls_recover_spin); in control_mount()
972 clear_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); in control_mount()
973 set_bit(DFL_MOUNT_DONE, &ls->ls_recover_flags); in control_mount()
974 memset(ls->ls_recover_submit, 0, ls->ls_recover_size*sizeof(uint32_t)); in control_mount()
975 memset(ls->ls_recover_result, 0, ls->ls_recover_size*sizeof(uint32_t)); in control_mount()
976 spin_unlock(&ls->ls_recover_spin); in control_mount()
987 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in control_first_done()
992 spin_lock(&ls->ls_recover_spin); in control_first_done()
993 start_gen = ls->ls_recover_start; in control_first_done()
994 block_gen = ls->ls_recover_block; in control_first_done()
996 if (test_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags) || in control_first_done()
997 !test_bit(DFL_MOUNT_DONE, &ls->ls_recover_flags) || in control_first_done()
998 !test_bit(DFL_FIRST_MOUNT, &ls->ls_recover_flags)) { in control_first_done()
1001 start_gen, block_gen, ls->ls_recover_flags); in control_first_done()
1002 spin_unlock(&ls->ls_recover_spin); in control_first_done()
1004 return -1; in control_first_done()
1010 * first mounter recovery. We can ignore any recover_slot in control_first_done()
1012 * because we are still the first mounter and any failed nodes in control_first_done()
1015 spin_unlock(&ls->ls_recover_spin); in control_first_done()
1018 wait_on_bit(&ls->ls_recover_flags, DFL_DLM_RECOVERY, in control_first_done()
1023 clear_bit(DFL_FIRST_MOUNT, &ls->ls_recover_flags); in control_first_done()
1024 set_bit(DFL_FIRST_MOUNT_DONE, &ls->ls_recover_flags); in control_first_done()
1025 memset(ls->ls_recover_submit, 0, ls->ls_recover_size*sizeof(uint32_t)); in control_first_done()
1026 memset(ls->ls_recover_result, 0, ls->ls_recover_size*sizeof(uint32_t)); in control_first_done()
1027 spin_unlock(&ls->ls_recover_spin); in control_first_done()
1029 memset(ls->ls_lvb_bits, 0, GDLM_LVB_SIZE); in control_first_done()
1030 control_lvb_write(ls, start_gen, ls->ls_lvb_bits); in control_first_done()
1046 * gfs2 jids start at 0, so jid = slot - 1)
1054 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in set_recover_size()
1060 if (!ls->ls_lvb_bits) { in set_recover_size()
1061 ls->ls_lvb_bits = kzalloc(GDLM_LVB_SIZE, GFP_NOFS); in set_recover_size()
1062 if (!ls->ls_lvb_bits) in set_recover_size()
1063 return -ENOMEM; in set_recover_size()
1068 if (max_jid < slots[i].slot - 1) in set_recover_size()
1069 max_jid = slots[i].slot - 1; in set_recover_size()
1072 old_size = ls->ls_recover_size; in set_recover_size()
1084 return -ENOMEM; in set_recover_size()
1087 spin_lock(&ls->ls_recover_spin); in set_recover_size()
1088 memcpy(submit, ls->ls_recover_submit, old_size * sizeof(uint32_t)); in set_recover_size()
1089 memcpy(result, ls->ls_recover_result, old_size * sizeof(uint32_t)); in set_recover_size()
1090 kfree(ls->ls_recover_submit); in set_recover_size()
1091 kfree(ls->ls_recover_result); in set_recover_size()
1092 ls->ls_recover_submit = submit; in set_recover_size()
1093 ls->ls_recover_result = result; in set_recover_size()
1094 ls->ls_recover_size = new_size; in set_recover_size()
1095 spin_unlock(&ls->ls_recover_spin); in set_recover_size()
1101 kfree(ls->ls_lvb_bits); in free_recover_size()
1102 kfree(ls->ls_recover_submit); in free_recover_size()
1103 kfree(ls->ls_recover_result); in free_recover_size()
1104 ls->ls_recover_submit = NULL; in free_recover_size()
1105 ls->ls_recover_result = NULL; in free_recover_size()
1106 ls->ls_recover_size = 0; in free_recover_size()
1107 ls->ls_lvb_bits = NULL; in free_recover_size()
1115 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gdlm_recover_prep()
1121 spin_lock(&ls->ls_recover_spin); in gdlm_recover_prep()
1122 ls->ls_recover_block = ls->ls_recover_start; in gdlm_recover_prep()
1123 set_bit(DFL_DLM_RECOVERY, &ls->ls_recover_flags); in gdlm_recover_prep()
1125 if (!test_bit(DFL_MOUNT_DONE, &ls->ls_recover_flags) || in gdlm_recover_prep()
1126 test_bit(DFL_FIRST_MOUNT, &ls->ls_recover_flags)) { in gdlm_recover_prep()
1127 spin_unlock(&ls->ls_recover_spin); in gdlm_recover_prep()
1130 set_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); in gdlm_recover_prep()
1131 spin_unlock(&ls->ls_recover_spin); in gdlm_recover_prep()
1140 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gdlm_recover_slot()
1141 int jid = slot->slot - 1; in gdlm_recover_slot()
1148 spin_lock(&ls->ls_recover_spin); in gdlm_recover_slot()
1149 if (ls->ls_recover_size < jid + 1) { in gdlm_recover_slot()
1151 jid, ls->ls_recover_block, ls->ls_recover_size); in gdlm_recover_slot()
1152 spin_unlock(&ls->ls_recover_spin); in gdlm_recover_slot()
1156 if (ls->ls_recover_submit[jid]) { in gdlm_recover_slot()
1158 jid, ls->ls_recover_block, ls->ls_recover_submit[jid]); in gdlm_recover_slot()
1160 ls->ls_recover_submit[jid] = ls->ls_recover_block; in gdlm_recover_slot()
1161 spin_unlock(&ls->ls_recover_spin); in gdlm_recover_slot()
1167 int our_slot, uint32_t generation) in gdlm_recover_done() argument
1170 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gdlm_recover_done()
1179 spin_lock(&ls->ls_recover_spin); in gdlm_recover_done()
1180 ls->ls_recover_start = generation; in gdlm_recover_done()
1182 if (!ls->ls_recover_mount) { in gdlm_recover_done()
1183 ls->ls_recover_mount = generation; in gdlm_recover_done()
1184 ls->ls_jid = our_slot - 1; in gdlm_recover_done()
1187 if (!test_bit(DFL_UNMOUNT, &ls->ls_recover_flags)) in gdlm_recover_done()
1188 queue_delayed_work(gfs2_control_wq, &sdp->sd_control_work, 0); in gdlm_recover_done()
1190 clear_bit(DFL_DLM_RECOVERY, &ls->ls_recover_flags); in gdlm_recover_done()
1192 wake_up_bit(&ls->ls_recover_flags, DFL_DLM_RECOVERY); in gdlm_recover_done()
1193 spin_unlock(&ls->ls_recover_spin); in gdlm_recover_done()
1201 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gdlm_recovery_result()
1208 if (test_bit(DFL_NO_DLM_OPS, &ls->ls_recover_flags)) in gdlm_recovery_result()
1212 if (jid == ls->ls_jid) in gdlm_recovery_result()
1215 spin_lock(&ls->ls_recover_spin); in gdlm_recovery_result()
1216 if (test_bit(DFL_FIRST_MOUNT, &ls->ls_recover_flags)) { in gdlm_recovery_result()
1217 spin_unlock(&ls->ls_recover_spin); in gdlm_recovery_result()
1220 if (ls->ls_recover_size < jid + 1) { in gdlm_recovery_result()
1222 jid, ls->ls_recover_size); in gdlm_recovery_result()
1223 spin_unlock(&ls->ls_recover_spin); in gdlm_recovery_result()
1230 ls->ls_recover_result[jid] = result; in gdlm_recovery_result()
1236 if (!test_bit(DFL_UNMOUNT, &ls->ls_recover_flags)) in gdlm_recovery_result()
1237 queue_delayed_work(gfs2_control_wq, &sdp->sd_control_work, in gdlm_recovery_result()
1239 spin_unlock(&ls->ls_recover_spin); in gdlm_recovery_result()
1250 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gdlm_mount()
1260 INIT_DELAYED_WORK(&sdp->sd_control_work, gfs2_control_func); in gdlm_mount()
1261 spin_lock_init(&ls->ls_recover_spin); in gdlm_mount()
1262 ls->ls_recover_flags = 0; in gdlm_mount()
1263 ls->ls_recover_mount = 0; in gdlm_mount()
1264 ls->ls_recover_start = 0; in gdlm_mount()
1265 ls->ls_recover_block = 0; in gdlm_mount()
1266 ls->ls_recover_size = 0; in gdlm_mount()
1267 ls->ls_recover_submit = NULL; in gdlm_mount()
1268 ls->ls_recover_result = NULL; in gdlm_mount()
1269 ls->ls_lvb_bits = NULL; in gdlm_mount()
1282 error = -EINVAL; in gdlm_mount()
1286 memcpy(cluster, table, strlen(table) - strlen(fsname)); in gdlm_mount()
1297 &ls->ls_dlm); in gdlm_mount()
1310 set_bit(DFL_NO_DLM_OPS, &ls->ls_recover_flags); in gdlm_mount()
1314 if (!test_bit(SDF_NOJOURNALID, &sdp->sd_flags)) { in gdlm_mount()
1316 error = -EINVAL; in gdlm_mount()
1321 * control_mount() uses control_lock to determine first mounter, in gdlm_mount()
1331 ls->ls_first = !!test_bit(DFL_FIRST_MOUNT, &ls->ls_recover_flags); in gdlm_mount()
1332 clear_bit(SDF_NOJOURNALID, &sdp->sd_flags); in gdlm_mount()
1334 wake_up_bit(&sdp->sd_flags, SDF_NOJOURNALID); in gdlm_mount()
1338 dlm_release_lockspace(ls->ls_dlm, 2); in gdlm_mount()
1347 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gdlm_first_done()
1350 if (test_bit(DFL_NO_DLM_OPS, &ls->ls_recover_flags)) in gdlm_first_done()
1360 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gdlm_unmount()
1362 if (test_bit(DFL_NO_DLM_OPS, &ls->ls_recover_flags)) in gdlm_unmount()
1367 spin_lock(&ls->ls_recover_spin); in gdlm_unmount()
1368 set_bit(DFL_UNMOUNT, &ls->ls_recover_flags); in gdlm_unmount()
1369 spin_unlock(&ls->ls_recover_spin); in gdlm_unmount()
1370 flush_delayed_work(&sdp->sd_control_work); in gdlm_unmount()
1374 if (ls->ls_dlm) { in gdlm_unmount()
1375 dlm_release_lockspace(ls->ls_dlm, 2); in gdlm_unmount()
1376 ls->ls_dlm = NULL; in gdlm_unmount()
1385 { Opt_first, "first=%d"},