From 23fa18eaa71266feff7ba8d83022d9e1cc83c65a Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:42:03 +0000
Subject: [PATCH] disable pwm7
---
kernel/fs/gfs2/lock_dlm.c | 75 +++++++++++++++++++++++++++++++------
1 files changed, 62 insertions(+), 13 deletions(-)
diff --git a/kernel/fs/gfs2/lock_dlm.c b/kernel/fs/gfs2/lock_dlm.c
index 9e90e42..5564aa8 100644
--- a/kernel/fs/gfs2/lock_dlm.c
+++ b/kernel/fs/gfs2/lock_dlm.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
* Copyright 2004-2011 Red Hat, Inc.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -19,6 +16,8 @@
#include "incore.h"
#include "glock.h"
+#include "glops.h"
+#include "recovery.h"
#include "util.h"
#include "sys.h"
#include "trace_gfs2.h"
@@ -127,6 +126,8 @@
switch (gl->gl_lksb.sb_status) {
case -DLM_EUNLOCK: /* Unlocked, so glock can be freed */
+ if (gl->gl_ops->go_free)
+ gl->gl_ops->go_free(gl);
gfs2_glock_free(gl);
return;
case -DLM_ECANCEL: /* Cancel while getting lock */
@@ -178,14 +179,14 @@
gfs2_glock_cb(gl, LM_ST_SHARED);
break;
default:
- pr_err("unknown bast mode %d\n", mode);
+ fs_err(gl->gl_name.ln_sbd, "unknown bast mode %d\n", mode);
BUG();
}
}
/* convert gfs lock-state to dlm lock-mode */
-static int make_mode(const unsigned int lmstate)
+static int make_mode(struct gfs2_sbd *sdp, const unsigned int lmstate)
{
switch (lmstate) {
case LM_ST_UNLOCKED:
@@ -197,7 +198,7 @@
case LM_ST_SHARED:
return DLM_LOCK_PR;
}
- pr_err("unknown LM state %d\n", lmstate);
+ fs_err(sdp, "unknown LM state %d\n", lmstate);
BUG();
return -1;
}
@@ -258,7 +259,7 @@
u32 lkf;
char strname[GDLM_STRNAME_BYTES] = "";
- req = make_mode(req_state);
+ req = make_mode(gl->gl_name.ln_sbd, req_state);
lkf = make_flags(gl, flags, req);
gfs2_glstats_inc(gl, GFS2_LKS_DCOUNT);
gfs2_sbstats_inc(gl, GFS2_LKS_DCOUNT);
@@ -311,7 +312,7 @@
error = dlm_unlock(ls->ls_dlm, gl->gl_lksb.sb_lkid, DLM_LKF_VALBLK,
NULL, gl);
if (error) {
- pr_err("gdlm_unlock %x,%llx err=%d\n",
+ fs_err(sdp, "gdlm_unlock %x,%llx err=%d\n",
gl->gl_name.ln_type,
(unsigned long long)gl->gl_name.ln_number, error);
return;
@@ -327,6 +328,7 @@
/*
* dlm/gfs2 recovery coordination using dlm_recover callbacks
*
+ * 0. gfs2 checks for another cluster node withdraw, needing journal replay
* 1. dlm_controld sees lockspace members change
* 2. dlm_controld blocks dlm-kernel locking activity
* 3. dlm_controld within dlm-kernel notifies gfs2 (recover_prep)
@@ -575,6 +577,28 @@
&ls->ls_control_lksb, "control_lock");
}
+/**
+ * remote_withdraw - react to a node withdrawing from the file system
+ * @sdp: The superblock
+ */
+static void remote_withdraw(struct gfs2_sbd *sdp)
+{
+ struct gfs2_jdesc *jd;
+ int ret = 0, count = 0;
+
+ list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
+ if (jd->jd_jid == sdp->sd_lockstruct.ls_jid)
+ continue;
+ ret = gfs2_recover_journal(jd, true);
+ if (ret)
+ break;
+ count++;
+ }
+
+ /* Now drop the additional reference we acquired */
+ fs_err(sdp, "Journals checked: %d, ret = %d.\n", count, ret);
+}
+
static void gfs2_control_func(struct work_struct *work)
{
struct gfs2_sbd *sdp = container_of(work, struct gfs2_sbd, sd_control_work.work);
@@ -584,6 +608,13 @@
int write_lvb = 0;
int recover_size;
int i, error;
+
+ /* First check for other nodes that may have done a withdraw. */
+ if (test_bit(SDF_REMOTE_WITHDRAW, &sdp->sd_flags)) {
+ remote_withdraw(sdp);
+ clear_bit(SDF_REMOTE_WITHDRAW, &sdp->sd_flags);
+ return;
+ }
spin_lock(&ls->ls_recover_spin);
/*
@@ -1039,11 +1070,11 @@
}
old_size = ls->ls_recover_size;
-
- if (old_size >= max_jid + 1)
+ new_size = old_size;
+ while (new_size < max_jid + 1)
+ new_size += RECOVER_SIZE_INC;
+ if (new_size == old_size)
return 0;
-
- new_size = old_size + RECOVER_SIZE_INC;
submit = kcalloc(new_size, sizeof(uint32_t), GFP_NOFS);
result = kcalloc(new_size, sizeof(uint32_t), GFP_NOFS);
@@ -1083,6 +1114,10 @@
struct gfs2_sbd *sdp = arg;
struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+ if (gfs2_withdrawn(sdp)) {
+ fs_err(sdp, "recover_prep ignored due to withdraw.\n");
+ return;
+ }
spin_lock(&ls->ls_recover_spin);
ls->ls_recover_block = ls->ls_recover_start;
set_bit(DFL_DLM_RECOVERY, &ls->ls_recover_flags);
@@ -1105,6 +1140,11 @@
struct lm_lockstruct *ls = &sdp->sd_lockstruct;
int jid = slot->slot - 1;
+ if (gfs2_withdrawn(sdp)) {
+ fs_err(sdp, "recover_slot jid %d ignored due to withdraw.\n",
+ jid);
+ return;
+ }
spin_lock(&ls->ls_recover_spin);
if (ls->ls_recover_size < jid + 1) {
fs_err(sdp, "recover_slot jid %d gen %u short size %d\n",
@@ -1129,6 +1169,10 @@
struct gfs2_sbd *sdp = arg;
struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+ if (gfs2_withdrawn(sdp)) {
+ fs_err(sdp, "recover_done ignored due to withdraw.\n");
+ return;
+ }
/* ensure the ls jid arrays are large enough */
set_recover_size(sdp, slots, num_slots);
@@ -1156,6 +1200,11 @@
{
struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+ if (gfs2_withdrawn(sdp)) {
+ fs_err(sdp, "recovery_result jid %d ignored due to withdraw.\n",
+ jid);
+ return;
+ }
if (test_bit(DFL_NO_DLM_OPS, &ls->ls_recover_flags))
return;
--
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