Lines Matching +full:mode +full:- +full:recovery
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.
20 #include "recovery.h"
26 * gfs2_update_stats - Update time based stats
52 s64 delta = sample - s->stats[index]; in gfs2_update_stats()
53 s->stats[index] += (delta >> 3); in gfs2_update_stats()
55 s->stats[index] += (s64)(abs(delta) - s->stats[index]) >> 2; in gfs2_update_stats()
59 * gfs2_update_reply_times - Update locking statistics
62 * This assumes that gl->gl_dstamp has been set earlier.
72 * TRY_1CB flags are set are classified as non-blocking. All
78 const unsigned gltype = gl->gl_name.ln_type; in gfs2_update_reply_times()
79 unsigned index = test_bit(GLF_BLOCKING, &gl->gl_flags) ? in gfs2_update_reply_times()
84 rtt = ktime_to_ns(ktime_sub(ktime_get_real(), gl->gl_dstamp)); in gfs2_update_reply_times()
85 lks = this_cpu_ptr(gl->gl_name.ln_sbd->sd_lkstats); in gfs2_update_reply_times()
86 gfs2_update_stats(&gl->gl_stats, index, rtt); /* Local */ in gfs2_update_reply_times()
87 gfs2_update_stats(&lks->lkstats[gltype], index, rtt); /* Global */ in gfs2_update_reply_times()
94 * gfs2_update_request_times - Update locking statistics
97 * The irt (lock inter-request times) measures the average time
105 const unsigned gltype = gl->gl_name.ln_type; in gfs2_update_request_times()
110 dstamp = gl->gl_dstamp; in gfs2_update_request_times()
111 gl->gl_dstamp = ktime_get_real(); in gfs2_update_request_times()
112 irt = ktime_to_ns(ktime_sub(gl->gl_dstamp, dstamp)); in gfs2_update_request_times()
113 lks = this_cpu_ptr(gl->gl_name.ln_sbd->sd_lkstats); in gfs2_update_request_times()
114 gfs2_update_stats(&gl->gl_stats, GFS2_LKS_SIRT, irt); /* Local */ in gfs2_update_request_times()
115 gfs2_update_stats(&lks->lkstats[gltype], GFS2_LKS_SIRT, irt); /* Global */ in gfs2_update_request_times()
122 unsigned ret = gl->gl_state; in gdlm_ast()
125 if (__lockref_is_dead(&gl->gl_lockref) && in gdlm_ast()
126 gl->gl_lksb.sb_status != -DLM_EUNLOCK) in gdlm_ast()
130 BUG_ON(gl->gl_lksb.sb_flags & DLM_SBF_DEMOTED); in gdlm_ast()
132 if ((gl->gl_lksb.sb_flags & DLM_SBF_VALNOTVALID) && gl->gl_lksb.sb_lvbptr) in gdlm_ast()
133 memset(gl->gl_lksb.sb_lvbptr, 0, GDLM_LVB_SIZE); in gdlm_ast()
135 switch (gl->gl_lksb.sb_status) { in gdlm_ast()
136 case -DLM_EUNLOCK: /* Unlocked, so glock can be freed */ in gdlm_ast()
137 if (gl->gl_ops->go_free) in gdlm_ast()
138 gl->gl_ops->go_free(gl); in gdlm_ast()
141 case -DLM_ECANCEL: /* Cancel while getting lock */ in gdlm_ast()
144 case -EAGAIN: /* Try lock fails */ in gdlm_ast()
145 case -EDEADLK: /* Deadlock detected */ in gdlm_ast()
147 case -ETIMEDOUT: /* Canceled due to timeout */ in gdlm_ast()
156 ret = gl->gl_req; in gdlm_ast()
157 if (gl->gl_lksb.sb_flags & DLM_SBF_ALTMODE) { in gdlm_ast()
158 if (gl->gl_req == LM_ST_SHARED) in gdlm_ast()
160 else if (gl->gl_req == LM_ST_DEFERRED) in gdlm_ast()
166 set_bit(GLF_INITIAL, &gl->gl_flags); in gdlm_ast()
170 if (!test_bit(GLF_INITIAL, &gl->gl_flags)) in gdlm_ast()
171 gl->gl_lksb.sb_lkid = 0; in gdlm_ast()
175 static void gdlm_bast(void *arg, int mode) in gdlm_bast() argument
179 if (__lockref_is_dead(&gl->gl_lockref)) in gdlm_bast()
182 switch (mode) { in gdlm_bast()
193 fs_err(gl->gl_name.ln_sbd, "unknown bast mode %d\n", mode); in gdlm_bast()
198 /* convert gfs lock-state to dlm lock-mode */
214 return -1; in make_mode()
222 if (gl->gl_lksb.sb_lvbptr) in make_flags()
242 if (gl->gl_lksb.sb_lkid != 0) { in make_flags()
244 if (test_bit(GLF_BLOCKING, &gl->gl_flags)) in make_flags()
255 *c-- = hex_asc[value & 0x0f]; in gfs2_reverse_hex()
263 struct lm_lockstruct *ls = &gl->gl_name.ln_sbd->sd_lockstruct; in gdlm_lock()
269 req = make_mode(gl->gl_name.ln_sbd, req_state); in gdlm_lock()
273 if (gl->gl_lksb.sb_lkid) { in gdlm_lock()
276 memset(strname, ' ', GDLM_STRNAME_BYTES - 1); in gdlm_lock()
277 strname[GDLM_STRNAME_BYTES - 1] = '\0'; in gdlm_lock()
278 gfs2_reverse_hex(strname + 7, gl->gl_name.ln_type); in gdlm_lock()
279 gfs2_reverse_hex(strname + 23, gl->gl_name.ln_number); in gdlm_lock()
280 gl->gl_dstamp = ktime_get_real(); in gdlm_lock()
287 error = dlm_lock(ls->ls_dlm, req, &gl->gl_lksb, lkf, strname, in gdlm_lock()
288 GDLM_STRNAME_BYTES - 1, 0, gdlm_ast, gl, gdlm_bast); in gdlm_lock()
289 if (error == -EBUSY) { in gdlm_lock()
298 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd; in gdlm_put_lock()
299 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gdlm_put_lock()
302 BUG_ON(!__lockref_is_dead(&gl->gl_lockref)); in gdlm_put_lock()
304 if (gl->gl_lksb.sb_lkid == 0) { in gdlm_put_lock()
309 clear_bit(GLF_BLOCKING, &gl->gl_flags); in gdlm_put_lock()
315 if (test_bit(DFL_UNMOUNT, &ls->ls_recover_flags)) { in gdlm_put_lock()
321 if (test_bit(SDF_SKIP_DLM_UNLOCK, &sdp->sd_flags) && in gdlm_put_lock()
322 !gl->gl_lksb.sb_lvbptr) { in gdlm_put_lock()
328 error = dlm_unlock(ls->ls_dlm, gl->gl_lksb.sb_lkid, DLM_LKF_VALBLK, in gdlm_put_lock()
330 if (error == -EBUSY) { in gdlm_put_lock()
337 gl->gl_name.ln_type, in gdlm_put_lock()
338 (unsigned long long)gl->gl_name.ln_number, error); in gdlm_put_lock()
344 struct lm_lockstruct *ls = &gl->gl_name.ln_sbd->sd_lockstruct; in gdlm_cancel()
345 dlm_unlock(ls->ls_dlm, gl->gl_lksb.sb_lkid, DLM_LKF_CANCEL, NULL, gl); in gdlm_cancel()
349 * dlm/gfs2 recovery coordination using dlm_recover callbacks
353 * 2. dlm_controld blocks dlm-kernel locking activity
354 * 3. dlm_controld within dlm-kernel notifies gfs2 (recover_prep)
355 * 4. dlm_controld starts and finishes its own user level recovery
356 * 5. dlm_controld starts dlm-kernel dlm_recoverd to do kernel recovery
358 * 7. dlm_recoverd does its own lock recovery
359 * 8. dlm_recoverd unblocks dlm-kernel locking activity
364 * 13. gfs2_recover provides recovery results to gfs2_control (recovery_result)
368 * - failures during recovery
383 * - more specific gfs2 steps in sequence above
395 * - parallel recovery steps across all nodes
409 * - is there a problem with clearing an lvb bit that should be set
410 * and missing a journal recovery?
421 * require recovery, because the mount in step 4 could not have
425 * and returning. The mount in step 4 waits until the recovery in
428 * - special case of first mounter: first node to mount the fs
431 * and recover any that need recovery before other nodes are allowed
441 * The mounted_lock is demoted to PR when first recovery is done, so
445 * mounter is doing first mount recovery of all journals.
446 * A mounting node needs to acquire control_lock in EX mode before
448 * the first mount recovery, blocking mounts from other nodes, then demotes
456 * do first mounter recovery
457 * mounted_lock EX->PR
458 * control_lock EX->NL, write lvb generation
461 * control_lock EX/NOQUEUE success (if fail -EAGAIN, retry)
462 * mounted_lock EX/NOQUEUE fail -EAGAIN (expected due to other mounters PR)
465 * control_lock EX->NL
468 * - mount during recovery
470 * If a node mounts while others are doing recovery (not first mounter),
479 * - control_lock lvb format
485 * GDLM_LVB_SIZE-8 bytes of jid bit map. If bit N is set, it indicates
486 * that jid N needs recovery.
495 memcpy(lvb_bits, ls->ls_control_lvb, GDLM_LVB_SIZE); in control_lvb_read()
504 memcpy(ls->ls_control_lvb, lvb_bits, GDLM_LVB_SIZE); in control_lvb_write()
506 memcpy(ls->ls_control_lvb, &gen, sizeof(__le32)); in control_lvb_write()
512 GDLM_LVB_SIZE - JID_BITMAP_OFFSET); in all_jid_bits_clear()
518 complete(&ls->ls_sync_wait); in sync_wait_cb()
523 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in sync_unlock()
526 error = dlm_unlock(ls->ls_dlm, lksb->sb_lkid, 0, lksb, ls); in sync_unlock()
529 name, lksb->sb_lkid, error); in sync_unlock()
533 wait_for_completion(&ls->ls_sync_wait); in sync_unlock()
535 if (lksb->sb_status != -DLM_EUNLOCK) { in sync_unlock()
537 name, lksb->sb_lkid, lksb->sb_status); in sync_unlock()
538 return -1; in sync_unlock()
543 static int sync_lock(struct gfs2_sbd *sdp, int mode, uint32_t flags, in sync_lock() argument
546 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in sync_lock()
553 error = dlm_lock(ls->ls_dlm, mode, lksb, flags, in sync_lock()
554 strname, GDLM_STRNAME_BYTES - 1, in sync_lock()
557 fs_err(sdp, "%s lkid %x flags %x mode %d error %d\n", in sync_lock()
558 name, lksb->sb_lkid, flags, mode, error); in sync_lock()
562 wait_for_completion(&ls->ls_sync_wait); in sync_lock()
564 status = lksb->sb_status; in sync_lock()
566 if (status && status != -EAGAIN) { in sync_lock()
567 fs_err(sdp, "%s lkid %x flags %x mode %d status %d\n", in sync_lock()
568 name, lksb->sb_lkid, flags, mode, status); in sync_lock()
576 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in mounted_unlock()
577 return sync_unlock(sdp, &ls->ls_mounted_lksb, "mounted_lock"); in mounted_unlock()
580 static int mounted_lock(struct gfs2_sbd *sdp, int mode, uint32_t flags) in mounted_lock() argument
582 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in mounted_lock()
583 return sync_lock(sdp, mode, flags, GFS2_MOUNTED_LOCK, in mounted_lock()
584 &ls->ls_mounted_lksb, "mounted_lock"); in mounted_lock()
589 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in control_unlock()
590 return sync_unlock(sdp, &ls->ls_control_lksb, "control_lock"); in control_unlock()
593 static int control_lock(struct gfs2_sbd *sdp, int mode, uint32_t flags) in control_lock() argument
595 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in control_lock()
596 return sync_lock(sdp, mode, flags, GFS2_CONTROL_LOCK, in control_lock()
597 &ls->ls_control_lksb, "control_lock"); in control_lock()
601 * remote_withdraw - react to a node withdrawing from the file system
609 list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) { in remote_withdraw()
610 if (jd->jd_jid == sdp->sd_lockstruct.ls_jid) in remote_withdraw()
625 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gfs2_control_func()
633 if (test_bit(SDF_REMOTE_WITHDRAW, &sdp->sd_flags)) { in gfs2_control_func()
635 clear_bit(SDF_REMOTE_WITHDRAW, &sdp->sd_flags); in gfs2_control_func()
639 spin_lock(&ls->ls_recover_spin); in gfs2_control_func()
645 * FIRST_MOUNT means this node is doing first mounter recovery, in gfs2_control_func()
646 * for which recovery control is handled by in gfs2_control_func()
649 if (!test_bit(DFL_MOUNT_DONE, &ls->ls_recover_flags) || in gfs2_control_func()
650 test_bit(DFL_FIRST_MOUNT, &ls->ls_recover_flags)) { in gfs2_control_func()
651 spin_unlock(&ls->ls_recover_spin); in gfs2_control_func()
654 block_gen = ls->ls_recover_block; in gfs2_control_func()
655 start_gen = ls->ls_recover_start; in gfs2_control_func()
656 spin_unlock(&ls->ls_recover_spin); in gfs2_control_func()
661 * dlm recovery is in progress and dlm locking is blocked. in gfs2_control_func()
670 * dlm_recoverd adds to recover_submit[] jids needing recovery in gfs2_control_func()
671 * gfs2_recover adds to recover_result[] journal recovery results in gfs2_control_func()
677 * the journal recovery is SUCCESS in gfs2_control_func()
686 control_lvb_read(ls, &lvb_gen, ls->ls_lvb_bits); in gfs2_control_func()
688 spin_lock(&ls->ls_recover_spin); in gfs2_control_func()
689 if (block_gen != ls->ls_recover_block || in gfs2_control_func()
690 start_gen != ls->ls_recover_start) { in gfs2_control_func()
692 start_gen, block_gen, ls->ls_recover_block); in gfs2_control_func()
693 spin_unlock(&ls->ls_recover_spin); in gfs2_control_func()
698 recover_size = ls->ls_recover_size; in gfs2_control_func()
705 * in succession. Only the first will really do recovery, in gfs2_control_func()
707 * recovery. So, another node may have already recovered in gfs2_control_func()
711 if (ls->ls_recover_result[i] != LM_RD_SUCCESS) in gfs2_control_func()
714 ls->ls_recover_result[i] = 0; in gfs2_control_func()
716 if (!test_bit_le(i, ls->ls_lvb_bits + JID_BITMAP_OFFSET)) in gfs2_control_func()
719 __clear_bit_le(i, ls->ls_lvb_bits + JID_BITMAP_OFFSET); in gfs2_control_func()
729 if (!ls->ls_recover_submit[i]) in gfs2_control_func()
731 if (ls->ls_recover_submit[i] < lvb_gen) in gfs2_control_func()
732 ls->ls_recover_submit[i] = 0; in gfs2_control_func()
739 if (!ls->ls_recover_submit[i]) in gfs2_control_func()
741 if (ls->ls_recover_submit[i] < start_gen) { in gfs2_control_func()
742 ls->ls_recover_submit[i] = 0; in gfs2_control_func()
743 __set_bit_le(i, ls->ls_lvb_bits + JID_BITMAP_OFFSET); in gfs2_control_func()
754 spin_unlock(&ls->ls_recover_spin); in gfs2_control_func()
757 control_lvb_write(ls, start_gen, ls->ls_lvb_bits); in gfs2_control_func()
771 * and clear a jid bit in the lvb if the recovery is a success. in gfs2_control_func()
777 if (test_bit_le(i, ls->ls_lvb_bits + JID_BITMAP_OFFSET)) { in gfs2_control_func()
788 * No more jid bits set in lvb, all recovery is done, unblock locks in gfs2_control_func()
793 spin_lock(&ls->ls_recover_spin); in gfs2_control_func()
794 if (ls->ls_recover_block == block_gen && in gfs2_control_func()
795 ls->ls_recover_start == start_gen) { in gfs2_control_func()
796 clear_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); in gfs2_control_func()
797 spin_unlock(&ls->ls_recover_spin); in gfs2_control_func()
802 start_gen, block_gen, ls->ls_recover_block); in gfs2_control_func()
803 spin_unlock(&ls->ls_recover_spin); in gfs2_control_func()
809 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in control_mount()
815 memset(&ls->ls_mounted_lksb, 0, sizeof(struct dlm_lksb)); in control_mount()
816 memset(&ls->ls_control_lksb, 0, sizeof(struct dlm_lksb)); in control_mount()
817 memset(&ls->ls_control_lvb, 0, GDLM_LVB_SIZE); in control_mount()
818 ls->ls_control_lksb.sb_lvbptr = ls->ls_control_lvb; in control_mount()
819 init_completion(&ls->ls_sync_wait); in control_mount()
821 set_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); in control_mount()
839 error = -EINTR; in control_mount()
856 * Other nodes need to do some work in dlm recovery and gfs2_control in control_mount()
870 if (error == -EAGAIN) { in control_mount()
879 * we cannot do the first-mount responsibility it implies: recovery. in control_mount()
881 if (sdp->sd_args.ar_spectator) in control_mount()
888 } else if (error != -EAGAIN) { in control_mount()
898 /* not even -EAGAIN should happen here */ in control_mount()
912 * lvb_gen will be non-zero. in control_mount()
915 control_lvb_read(ls, &lvb_gen, ls->ls_lvb_bits); in control_mount()
920 error = -EINVAL; in control_mount()
925 /* first mounter, keep both EX while doing first recovery */ in control_mount()
926 spin_lock(&ls->ls_recover_spin); in control_mount()
927 clear_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); in control_mount()
928 set_bit(DFL_MOUNT_DONE, &ls->ls_recover_flags); in control_mount()
929 set_bit(DFL_FIRST_MOUNT, &ls->ls_recover_flags); in control_mount()
930 spin_unlock(&ls->ls_recover_spin); in control_mount()
945 if (!all_jid_bits_clear(ls->ls_lvb_bits)) { in control_mount()
946 /* journals need recovery, wait until all are clear */ in control_mount()
947 fs_info(sdp, "control_mount wait for journal recovery\n"); in control_mount()
951 spin_lock(&ls->ls_recover_spin); in control_mount()
952 block_gen = ls->ls_recover_block; in control_mount()
953 start_gen = ls->ls_recover_start; in control_mount()
954 mount_gen = ls->ls_recover_mount; in control_mount()
958 generation, which might include new recovery bits set */ in control_mount()
959 if (sdp->sd_args.ar_spectator) { in control_mount()
960 fs_info(sdp, "Recovery is required. Waiting for a " in control_mount()
961 "non-spectator to mount.\n"); in control_mount()
962 spin_unlock(&ls->ls_recover_spin); in control_mount()
968 ls->ls_recover_flags); in control_mount()
969 spin_unlock(&ls->ls_recover_spin); in control_mount()
976 latest recovery generation */ in control_mount()
979 lvb_gen, ls->ls_recover_flags); in control_mount()
980 spin_unlock(&ls->ls_recover_spin); in control_mount()
985 /* dlm recovery in progress, wait for it to finish */ in control_mount()
988 lvb_gen, ls->ls_recover_flags); in control_mount()
989 spin_unlock(&ls->ls_recover_spin); in control_mount()
993 clear_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); in control_mount()
994 set_bit(DFL_MOUNT_DONE, &ls->ls_recover_flags); in control_mount()
995 memset(ls->ls_recover_submit, 0, ls->ls_recover_size*sizeof(uint32_t)); in control_mount()
996 memset(ls->ls_recover_result, 0, ls->ls_recover_size*sizeof(uint32_t)); in control_mount()
997 spin_unlock(&ls->ls_recover_spin); in control_mount()
1008 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in control_first_done()
1013 spin_lock(&ls->ls_recover_spin); in control_first_done()
1014 start_gen = ls->ls_recover_start; in control_first_done()
1015 block_gen = ls->ls_recover_block; in control_first_done()
1017 if (test_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags) || in control_first_done()
1018 !test_bit(DFL_MOUNT_DONE, &ls->ls_recover_flags) || in control_first_done()
1019 !test_bit(DFL_FIRST_MOUNT, &ls->ls_recover_flags)) { in control_first_done()
1022 start_gen, block_gen, ls->ls_recover_flags); in control_first_done()
1023 spin_unlock(&ls->ls_recover_spin); in control_first_done()
1025 return -1; in control_first_done()
1030 * Wait for the end of a dlm recovery cycle to switch from in control_first_done()
1031 * first mounter recovery. We can ignore any recover_slot in control_first_done()
1034 * have not fully mounted, so they don't need recovery. in control_first_done()
1036 spin_unlock(&ls->ls_recover_spin); in control_first_done()
1039 wait_on_bit(&ls->ls_recover_flags, DFL_DLM_RECOVERY, in control_first_done()
1044 clear_bit(DFL_FIRST_MOUNT, &ls->ls_recover_flags); in control_first_done()
1045 set_bit(DFL_FIRST_MOUNT_DONE, &ls->ls_recover_flags); in control_first_done()
1046 memset(ls->ls_recover_submit, 0, ls->ls_recover_size*sizeof(uint32_t)); in control_first_done()
1047 memset(ls->ls_recover_result, 0, ls->ls_recover_size*sizeof(uint32_t)); in control_first_done()
1048 spin_unlock(&ls->ls_recover_spin); in control_first_done()
1050 memset(ls->ls_lvb_bits, 0, GDLM_LVB_SIZE); in control_first_done()
1051 control_lvb_write(ls, start_gen, ls->ls_lvb_bits); in control_first_done()
1067 * gfs2 jids start at 0, so jid = slot - 1)
1075 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in set_recover_size()
1081 if (!ls->ls_lvb_bits) { in set_recover_size()
1082 ls->ls_lvb_bits = kzalloc(GDLM_LVB_SIZE, GFP_NOFS); in set_recover_size()
1083 if (!ls->ls_lvb_bits) in set_recover_size()
1084 return -ENOMEM; in set_recover_size()
1089 if (max_jid < slots[i].slot - 1) in set_recover_size()
1090 max_jid = slots[i].slot - 1; in set_recover_size()
1093 old_size = ls->ls_recover_size; in set_recover_size()
1105 return -ENOMEM; in set_recover_size()
1108 spin_lock(&ls->ls_recover_spin); in set_recover_size()
1109 memcpy(submit, ls->ls_recover_submit, old_size * sizeof(uint32_t)); in set_recover_size()
1110 memcpy(result, ls->ls_recover_result, old_size * sizeof(uint32_t)); in set_recover_size()
1111 kfree(ls->ls_recover_submit); in set_recover_size()
1112 kfree(ls->ls_recover_result); in set_recover_size()
1113 ls->ls_recover_submit = submit; in set_recover_size()
1114 ls->ls_recover_result = result; in set_recover_size()
1115 ls->ls_recover_size = new_size; in set_recover_size()
1116 spin_unlock(&ls->ls_recover_spin); in set_recover_size()
1122 kfree(ls->ls_lvb_bits); in free_recover_size()
1123 kfree(ls->ls_recover_submit); in free_recover_size()
1124 kfree(ls->ls_recover_result); in free_recover_size()
1125 ls->ls_recover_submit = NULL; in free_recover_size()
1126 ls->ls_recover_result = NULL; in free_recover_size()
1127 ls->ls_recover_size = 0; in free_recover_size()
1128 ls->ls_lvb_bits = NULL; in free_recover_size()
1131 /* dlm calls before it does lock recovery */
1136 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gdlm_recover_prep()
1142 spin_lock(&ls->ls_recover_spin); in gdlm_recover_prep()
1143 ls->ls_recover_block = ls->ls_recover_start; in gdlm_recover_prep()
1144 set_bit(DFL_DLM_RECOVERY, &ls->ls_recover_flags); in gdlm_recover_prep()
1146 if (!test_bit(DFL_MOUNT_DONE, &ls->ls_recover_flags) || in gdlm_recover_prep()
1147 test_bit(DFL_FIRST_MOUNT, &ls->ls_recover_flags)) { in gdlm_recover_prep()
1148 spin_unlock(&ls->ls_recover_spin); in gdlm_recover_prep()
1151 set_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); in gdlm_recover_prep()
1152 spin_unlock(&ls->ls_recover_spin); in gdlm_recover_prep()
1161 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gdlm_recover_slot()
1162 int jid = slot->slot - 1; in gdlm_recover_slot()
1169 spin_lock(&ls->ls_recover_spin); in gdlm_recover_slot()
1170 if (ls->ls_recover_size < jid + 1) { in gdlm_recover_slot()
1172 jid, ls->ls_recover_block, ls->ls_recover_size); in gdlm_recover_slot()
1173 spin_unlock(&ls->ls_recover_spin); in gdlm_recover_slot()
1177 if (ls->ls_recover_submit[jid]) { in gdlm_recover_slot()
1179 jid, ls->ls_recover_block, ls->ls_recover_submit[jid]); in gdlm_recover_slot()
1181 ls->ls_recover_submit[jid] = ls->ls_recover_block; in gdlm_recover_slot()
1182 spin_unlock(&ls->ls_recover_spin); in gdlm_recover_slot()
1185 /* dlm calls after recover_slot and after it completes lock recovery */
1191 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gdlm_recover_done()
1200 spin_lock(&ls->ls_recover_spin); in gdlm_recover_done()
1201 ls->ls_recover_start = generation; in gdlm_recover_done()
1203 if (!ls->ls_recover_mount) { in gdlm_recover_done()
1204 ls->ls_recover_mount = generation; in gdlm_recover_done()
1205 ls->ls_jid = our_slot - 1; in gdlm_recover_done()
1208 if (!test_bit(DFL_UNMOUNT, &ls->ls_recover_flags)) in gdlm_recover_done()
1209 queue_delayed_work(gfs2_control_wq, &sdp->sd_control_work, 0); in gdlm_recover_done()
1211 clear_bit(DFL_DLM_RECOVERY, &ls->ls_recover_flags); in gdlm_recover_done()
1213 wake_up_bit(&ls->ls_recover_flags, DFL_DLM_RECOVERY); in gdlm_recover_done()
1214 spin_unlock(&ls->ls_recover_spin); in gdlm_recover_done()
1217 /* gfs2_recover thread has a journal recovery result */
1222 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gdlm_recovery_result()
1229 if (test_bit(DFL_NO_DLM_OPS, &ls->ls_recover_flags)) in gdlm_recovery_result()
1232 /* don't care about the recovery of own journal during mount */ in gdlm_recovery_result()
1233 if (jid == ls->ls_jid) in gdlm_recovery_result()
1236 spin_lock(&ls->ls_recover_spin); in gdlm_recovery_result()
1237 if (test_bit(DFL_FIRST_MOUNT, &ls->ls_recover_flags)) { in gdlm_recovery_result()
1238 spin_unlock(&ls->ls_recover_spin); in gdlm_recovery_result()
1241 if (ls->ls_recover_size < jid + 1) { in gdlm_recovery_result()
1243 jid, ls->ls_recover_size); in gdlm_recovery_result()
1244 spin_unlock(&ls->ls_recover_spin); in gdlm_recovery_result()
1251 ls->ls_recover_result[jid] = result; in gdlm_recovery_result()
1257 if (!test_bit(DFL_UNMOUNT, &ls->ls_recover_flags)) in gdlm_recovery_result()
1258 queue_delayed_work(gfs2_control_wq, &sdp->sd_control_work, in gdlm_recovery_result()
1260 spin_unlock(&ls->ls_recover_spin); in gdlm_recovery_result()
1271 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gdlm_mount()
1281 INIT_DELAYED_WORK(&sdp->sd_control_work, gfs2_control_func); in gdlm_mount()
1282 spin_lock_init(&ls->ls_recover_spin); in gdlm_mount()
1283 ls->ls_recover_flags = 0; in gdlm_mount()
1284 ls->ls_recover_mount = 0; in gdlm_mount()
1285 ls->ls_recover_start = 0; in gdlm_mount()
1286 ls->ls_recover_block = 0; in gdlm_mount()
1287 ls->ls_recover_size = 0; in gdlm_mount()
1288 ls->ls_recover_submit = NULL; in gdlm_mount()
1289 ls->ls_recover_result = NULL; in gdlm_mount()
1290 ls->ls_lvb_bits = NULL; in gdlm_mount()
1303 error = -EINVAL; in gdlm_mount()
1307 memcpy(cluster, table, strlen(table) - strlen(fsname)); in gdlm_mount()
1318 &ls->ls_dlm); in gdlm_mount()
1331 set_bit(DFL_NO_DLM_OPS, &ls->ls_recover_flags); in gdlm_mount()
1335 if (!test_bit(SDF_NOJOURNALID, &sdp->sd_flags)) { in gdlm_mount()
1337 error = -EINVAL; in gdlm_mount()
1352 ls->ls_first = !!test_bit(DFL_FIRST_MOUNT, &ls->ls_recover_flags); in gdlm_mount()
1353 clear_bit(SDF_NOJOURNALID, &sdp->sd_flags); in gdlm_mount()
1355 wake_up_bit(&sdp->sd_flags, SDF_NOJOURNALID); in gdlm_mount()
1359 dlm_release_lockspace(ls->ls_dlm, 2); in gdlm_mount()
1368 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gdlm_first_done()
1371 if (test_bit(DFL_NO_DLM_OPS, &ls->ls_recover_flags)) in gdlm_first_done()
1381 struct lm_lockstruct *ls = &sdp->sd_lockstruct; in gdlm_unmount()
1383 if (test_bit(DFL_NO_DLM_OPS, &ls->ls_recover_flags)) in gdlm_unmount()
1388 spin_lock(&ls->ls_recover_spin); in gdlm_unmount()
1389 set_bit(DFL_UNMOUNT, &ls->ls_recover_flags); in gdlm_unmount()
1390 spin_unlock(&ls->ls_recover_spin); in gdlm_unmount()
1391 flush_delayed_work(&sdp->sd_control_work); in gdlm_unmount()
1393 /* mounted_lock and control_lock will be purged in dlm recovery */ in gdlm_unmount()
1395 if (ls->ls_dlm) { in gdlm_unmount()
1396 dlm_release_lockspace(ls->ls_dlm, 2); in gdlm_unmount()
1397 ls->ls_dlm = NULL; in gdlm_unmount()