diff options
Diffstat (limited to 'fs/ocfs2/cluster/heartbeat.c')
| -rw-r--r-- | fs/ocfs2/cluster/heartbeat.c | 475 |
1 files changed, 178 insertions, 297 deletions
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index f3c20b279eb2..724350925aff 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -1,24 +1,9 @@ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +// SPDX-License-Identifier: GPL-2.0-or-later +/* * Copyright (C) 2004, 2005 Oracle. All rights reserved. - * - * This program 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 2 of the License, or (at your option) any later version. - * - * This program 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. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 021110-1307, USA. */ +#include "linux/kstrtox.h" #include <linux/kernel.h> #include <linux/sched.h> #include <linux/jiffies.h> @@ -106,10 +91,6 @@ static struct o2hb_debug_buf *o2hb_db_failedregions; #define O2HB_DEBUG_REGION_PINNED "pinned" static struct dentry *o2hb_debug_dir; -static struct dentry *o2hb_debug_livenodes; -static struct dentry *o2hb_debug_liveregions; -static struct dentry *o2hb_debug_quorumregions; -static struct dentry *o2hb_debug_failedregions; static LIST_HEAD(o2hb_all_regions); @@ -119,8 +100,6 @@ static struct o2hb_callback { static struct o2hb_callback *hbcall_from_type(enum o2hb_callback_type type); -#define O2HB_DEFAULT_BLOCK_BITS 9 - enum o2hb_heartbeat_modes { O2HB_HEARTBEAT_LOCAL = 0, O2HB_HEARTBEAT_GLOBAL, @@ -235,7 +214,7 @@ struct o2hb_region { unsigned int hr_num_pages; struct page **hr_slot_data; - struct block_device *hr_bdev; + struct file *hr_bdev_file; struct o2hb_disk_slot *hr_slots; /* live node map of this region */ @@ -243,10 +222,6 @@ struct o2hb_region { unsigned int hr_region_num; struct dentry *hr_debug_dir; - struct dentry *hr_debug_livenodes; - struct dentry *hr_debug_regnum; - struct dentry *hr_debug_elapsed_time; - struct dentry *hr_debug_pinned; struct o2hb_debug_buf *hr_db_livenodes; struct o2hb_debug_buf *hr_db_regnum; struct o2hb_debug_buf *hr_db_elapsed_time; @@ -261,8 +236,6 @@ struct o2hb_region { * (hr_steady_iterations == 0) within hr_unsteady_iterations */ atomic_t hr_unsteady_iterations; - char hr_dev_name[BDEVNAME_SIZE]; - unsigned int hr_timeout_ms; /* randomized as the region goes up and down so that a node @@ -289,6 +262,11 @@ struct o2hb_region { int hr_last_hb_status; }; +static inline struct block_device *reg_bdev(struct o2hb_region *reg) +{ + return reg->hr_bdev_file ? file_bdev(reg->hr_bdev_file) : NULL; +} + struct o2hb_bio_wait_ctxt { atomic_t wc_num_reqs; struct completion wc_io_complete; @@ -313,8 +291,8 @@ static void o2hb_write_timeout(struct work_struct *work) container_of(work, struct o2hb_region, hr_write_timeout_work.work); - mlog(ML_ERROR, "Heartbeat write timeout to device %s after %u " - "milliseconds\n", reg->hr_dev_name, + mlog(ML_ERROR, "Heartbeat write timeout to device %pg after %u " + "milliseconds\n", reg_bdev(reg), jiffies_to_msecs(jiffies - reg->hr_last_timeout_start)); if (o2hb_global_heartbeat_active()) { @@ -363,7 +341,7 @@ static void o2hb_arm_timeout(struct o2hb_region *reg) /* negotiate timeout must be less than write timeout. */ schedule_delayed_work(®->hr_nego_timeout_work, msecs_to_jiffies(O2HB_NEGO_TIMEOUT_MS)); - memset(reg->hr_nego_node_bitmap, 0, sizeof(reg->hr_nego_node_bitmap)); + bitmap_zero(reg->hr_nego_node_bitmap, O2NM_MAX_NODES); } static void o2hb_disarm_timeout(struct o2hb_region *reg) @@ -403,19 +381,19 @@ static void o2hb_nego_timeout(struct work_struct *work) if (reg->hr_last_hb_status) return; - o2hb_fill_node_map(live_node_bitmap, sizeof(live_node_bitmap)); + o2hb_fill_node_map(live_node_bitmap, O2NM_MAX_NODES); /* lowest node as master node to make negotiate decision. */ - master_node = find_next_bit(live_node_bitmap, O2NM_MAX_NODES, 0); + master_node = find_first_bit(live_node_bitmap, O2NM_MAX_NODES); if (master_node == o2nm_this_node()) { if (!test_bit(master_node, reg->hr_nego_node_bitmap)) { - printk(KERN_NOTICE "o2hb: node %d hb write hung for %ds on region %s (%s).\n", + printk(KERN_NOTICE "o2hb: node %d hb write hung for %ds on region %s (%pg).\n", o2nm_this_node(), O2HB_NEGO_TIMEOUT_MS/1000, - config_item_name(®->hr_item), reg->hr_dev_name); + config_item_name(®->hr_item), reg_bdev(reg)); set_bit(master_node, reg->hr_nego_node_bitmap); } - if (memcmp(reg->hr_nego_node_bitmap, live_node_bitmap, - sizeof(reg->hr_nego_node_bitmap))) { + if (!bitmap_equal(reg->hr_nego_node_bitmap, live_node_bitmap, + O2NM_MAX_NODES)) { /* check negotiate bitmap every second to do timeout * approve decision. */ @@ -425,8 +403,9 @@ static void o2hb_nego_timeout(struct work_struct *work) return; } - printk(KERN_NOTICE "o2hb: all nodes hb write hung, maybe region %s (%s) is down.\n", - config_item_name(®->hr_item), reg->hr_dev_name); + printk(KERN_NOTICE "o2hb: all nodes hb write hung, maybe region %s (%pg) is down.\n", + config_item_name(®->hr_item), + reg_bdev(reg)); /* approve negotiate timeout request. */ o2hb_arm_timeout(reg); @@ -445,9 +424,9 @@ static void o2hb_nego_timeout(struct work_struct *work) } } else { /* negotiate timeout with master node. */ - printk(KERN_NOTICE "o2hb: node %d hb write hung for %ds on region %s (%s), negotiate timeout with node %d.\n", + printk(KERN_NOTICE "o2hb: node %d hb write hung for %ds on region %s (%pg), negotiate timeout with node %d.\n", o2nm_this_node(), O2HB_NEGO_TIMEOUT_MS/1000, config_item_name(®->hr_item), - reg->hr_dev_name, master_node); + reg_bdev(reg), master_node); ret = o2hb_send_nego_msg(reg->hr_key, O2HB_NEGO_TIMEOUT_MSG, master_node); if (ret) @@ -463,8 +442,9 @@ static int o2hb_nego_timeout_handler(struct o2net_msg *msg, u32 len, void *data, struct o2hb_nego_msg *nego_msg; nego_msg = (struct o2hb_nego_msg *)msg->buf; - printk(KERN_NOTICE "o2hb: receive negotiate timeout message from node %d on region %s (%s).\n", - nego_msg->node_num, config_item_name(®->hr_item), reg->hr_dev_name); + printk(KERN_NOTICE "o2hb: receive negotiate timeout message from node %d on region %s (%pg).\n", + nego_msg->node_num, config_item_name(®->hr_item), + reg_bdev(reg)); if (nego_msg->node_num < O2NM_MAX_NODES) set_bit(nego_msg->node_num, reg->hr_nego_node_bitmap); else @@ -478,8 +458,8 @@ static int o2hb_nego_approve_handler(struct o2net_msg *msg, u32 len, void *data, { struct o2hb_region *reg = data; - printk(KERN_NOTICE "o2hb: negotiate timeout approved by master node on region %s (%s).\n", - config_item_name(®->hr_item), reg->hr_dev_name); + printk(KERN_NOTICE "o2hb: negotiate timeout approved by master node on region %s (%pg).\n", + config_item_name(®->hr_item), reg_bdev(reg)); o2hb_arm_timeout(reg); return 0; } @@ -529,8 +509,7 @@ static void o2hb_bio_end_io(struct bio *bio) static struct bio *o2hb_setup_one_bio(struct o2hb_region *reg, struct o2hb_bio_wait_ctxt *wc, unsigned int *current_slot, - unsigned int max_slots, int op, - int op_flags) + unsigned int max_slots, blk_opf_t opf) { int len, current_page; unsigned int vec_len, vec_start; @@ -544,7 +523,7 @@ static struct bio *o2hb_setup_one_bio(struct o2hb_region *reg, * GFP_KERNEL that the local node can get fenced. It would be * nicest if we could pre-allocate these bios and avoid this * all together. */ - bio = bio_alloc(GFP_ATOMIC, 16); + bio = bio_alloc(reg_bdev(reg), 16, opf, GFP_ATOMIC); if (!bio) { mlog(ML_ERROR, "Could not alloc slots BIO!\n"); bio = ERR_PTR(-ENOMEM); @@ -553,10 +532,8 @@ static struct bio *o2hb_setup_one_bio(struct o2hb_region *reg, /* Must put everything in 512 byte sectors for the bio... */ bio->bi_iter.bi_sector = (reg->hr_start_block + cs) << (bits - 9); - bio_set_dev(bio, reg->hr_bdev); bio->bi_private = wc; bio->bi_end_io = o2hb_bio_end_io; - bio_set_op_attrs(bio, op, op_flags); vec_start = (cs << bits) % PAGE_SIZE; while(cs < max_slots) { @@ -594,7 +571,7 @@ static int o2hb_read_slots(struct o2hb_region *reg, while(current_slot < max_slots) { bio = o2hb_setup_one_bio(reg, &wc, ¤t_slot, max_slots, - REQ_OP_READ, 0); + REQ_OP_READ); if (IS_ERR(bio)) { status = PTR_ERR(bio); mlog_errno(status); @@ -626,8 +603,8 @@ static int o2hb_issue_node_write(struct o2hb_region *reg, slot = o2nm_this_node(); - bio = o2hb_setup_one_bio(reg, write_wc, &slot, slot+1, REQ_OP_WRITE, - REQ_SYNC); + bio = o2hb_setup_one_bio(reg, write_wc, &slot, slot+1, + REQ_OP_WRITE | REQ_SYNC); if (IS_ERR(bio)) { status = PTR_ERR(bio); mlog_errno(status); @@ -717,8 +694,8 @@ static int o2hb_check_own_slot(struct o2hb_region *reg) else errstr = ERRSTR3; - mlog(ML_ERROR, "%s (%s): expected(%u:0x%llx, 0x%llx), " - "ondisk(%u:0x%llx, 0x%llx)\n", errstr, reg->hr_dev_name, + mlog(ML_ERROR, "%s (%pg): expected(%u:0x%llx, 0x%llx), " + "ondisk(%u:0x%llx, 0x%llx)\n", errstr, reg_bdev(reg), slot->ds_node_num, (unsigned long long)slot->ds_last_generation, (unsigned long long)slot->ds_last_time, hb_block->hb_node, (unsigned long long)le64_to_cpu(hb_block->hb_generation), @@ -887,12 +864,12 @@ static void o2hb_set_quorum_device(struct o2hb_region *reg) * live nodes heartbeat on it. In other words, the region has been * added to all nodes. */ - if (memcmp(reg->hr_live_node_bitmap, o2hb_live_node_bitmap, - sizeof(o2hb_live_node_bitmap))) + if (!bitmap_equal(reg->hr_live_node_bitmap, o2hb_live_node_bitmap, + O2NM_MAX_NODES)) goto unlock; - printk(KERN_NOTICE "o2hb: Region %s (%s) is now a quorum device\n", - config_item_name(®->hr_item), reg->hr_dev_name); + printk(KERN_NOTICE "o2hb: Region %s (%pg) is now a quorum device\n", + config_item_name(®->hr_item), reg_bdev(reg)); set_bit(reg->hr_region_num, o2hb_quorum_region_bitmap); @@ -950,8 +927,8 @@ static int o2hb_check_slot(struct o2hb_region *reg, /* The node is live but pushed out a bad crc. We * consider it a transient miss but don't populate any * other values as they may be junk. */ - mlog(ML_ERROR, "Node %d has written a bad crc to %s\n", - slot->ds_node_num, reg->hr_dev_name); + mlog(ML_ERROR, "Node %d has written a bad crc to %pg\n", + slot->ds_node_num, reg_bdev(reg)); o2hb_dump_slot(hb_block); slot->ds_equal_samples++; @@ -1030,12 +1007,12 @@ fire_callbacks: slot_dead_ms = le32_to_cpu(hb_block->hb_dead_ms); if (slot_dead_ms && slot_dead_ms != dead_ms) { /* TODO: Perhaps we can fail the region here. */ - mlog(ML_ERROR, "Node %d on device %s has a dead count " + mlog(ML_ERROR, "Node %d on device %pg has a dead count " "of %u ms, but our count is %u ms.\n" "Please double check your configuration values " "for 'O2CB_HEARTBEAT_THRESHOLD'\n", - slot->ds_node_num, reg->hr_dev_name, slot_dead_ms, - dead_ms); + slot->ds_node_num, reg_bdev(reg), + slot_dead_ms, dead_ms); } goto out; } @@ -1044,7 +1021,7 @@ fire_callbacks: if (list_empty(&slot->ds_live_item)) goto out; - /* live nodes only go dead after enough consequtive missed + /* live nodes only go dead after enough consecutive missed * samples.. reset the missed counter whenever we see * activity */ if (slot->ds_equal_samples >= o2hb_dead_threshold || gen_changed) { @@ -1118,7 +1095,7 @@ static int o2hb_do_disk_heartbeat(struct o2hb_region *reg) * If a node is not configured but is in the livemap, we still need * to read the slot so as to be able to remove it from the livemap. */ - o2hb_fill_node_map(live_node_bitmap, sizeof(live_node_bitmap)); + o2hb_fill_node_map(live_node_bitmap, O2NM_MAX_NODES); i = -1; while ((i = find_next_bit(live_node_bitmap, O2NM_MAX_NODES, i + 1)) < O2NM_MAX_NODES) { @@ -1173,8 +1150,8 @@ static int o2hb_do_disk_heartbeat(struct o2hb_region *reg) /* Do not re-arm the write timeout on I/O error - we * can't be sure that the new block ever made it to * disk */ - mlog(ML_ERROR, "Write error %d on device \"%s\"\n", - write_wc.wc_error, reg->hr_dev_name); + mlog(ML_ERROR, "Write error %d on device \"%pg\"\n", + write_wc.wc_error, reg_bdev(reg)); ret = write_wc.wc_error; goto bail; } @@ -1198,9 +1175,9 @@ bail: if (atomic_read(®->hr_steady_iterations) != 0) { if (atomic_dec_and_test(®->hr_unsteady_iterations)) { printk(KERN_NOTICE "o2hb: Unable to stabilize " - "heartbeart on region %s (%s)\n", + "heartbeat on region %s (%pg)\n", config_item_name(®->hr_item), - reg->hr_dev_name); + reg_bdev(reg)); atomic_set(®->hr_steady_iterations, 0); reg->hr_aborted_start = 1; wake_up(&o2hb_steady_queue); @@ -1331,7 +1308,7 @@ static int o2hb_debug_open(struct inode *inode, struct file *file) case O2HB_DB_TYPE_REGION_NUMBER: reg = (struct o2hb_region *)db->db_data; - out += snprintf(buf + out, PAGE_SIZE - out, "%d\n", + out += scnprintf(buf + out, PAGE_SIZE - out, "%d\n", reg->hr_region_num); goto done; @@ -1341,12 +1318,12 @@ static int o2hb_debug_open(struct inode *inode, struct file *file) /* If 0, it has never been set before */ if (lts) lts = jiffies_to_msecs(jiffies - lts); - out += snprintf(buf + out, PAGE_SIZE - out, "%lu\n", lts); + out += scnprintf(buf + out, PAGE_SIZE - out, "%lu\n", lts); goto done; case O2HB_DB_TYPE_REGION_PINNED: reg = (struct o2hb_region *)db->db_data; - out += snprintf(buf + out, PAGE_SIZE - out, "%u\n", + out += scnprintf(buf + out, PAGE_SIZE - out, "%u\n", !!reg->hr_item_pinned); goto done; @@ -1355,8 +1332,8 @@ static int o2hb_debug_open(struct inode *inode, struct file *file) } while ((i = find_next_bit(map, db->db_len, i + 1)) < db->db_len) - out += snprintf(buf + out, PAGE_SIZE - out, "%d ", i); - out += snprintf(buf + out, PAGE_SIZE - out, "\n"); + out += scnprintf(buf + out, PAGE_SIZE - out, "%d ", i); + out += scnprintf(buf + out, PAGE_SIZE - out, "\n"); done: i_size_write(inode, out); @@ -1405,107 +1382,60 @@ static const struct file_operations o2hb_debug_fops = { void o2hb_exit(void) { - debugfs_remove(o2hb_debug_failedregions); - debugfs_remove(o2hb_debug_quorumregions); - debugfs_remove(o2hb_debug_liveregions); - debugfs_remove(o2hb_debug_livenodes); - debugfs_remove(o2hb_debug_dir); + debugfs_remove_recursive(o2hb_debug_dir); kfree(o2hb_db_livenodes); kfree(o2hb_db_liveregions); kfree(o2hb_db_quorumregions); kfree(o2hb_db_failedregions); } -static struct dentry *o2hb_debug_create(const char *name, struct dentry *dir, - struct o2hb_debug_buf **db, int db_len, - int type, int size, int len, void *data) +static void o2hb_debug_create(const char *name, struct dentry *dir, + struct o2hb_debug_buf **db, int db_len, int type, + int size, int len, void *data) { *db = kmalloc(db_len, GFP_KERNEL); if (!*db) - return NULL; + return; (*db)->db_type = type; (*db)->db_size = size; (*db)->db_len = len; (*db)->db_data = data; - return debugfs_create_file(name, S_IFREG|S_IRUSR, dir, *db, - &o2hb_debug_fops); + debugfs_create_file(name, S_IFREG|S_IRUSR, dir, *db, &o2hb_debug_fops); } -static int o2hb_debug_init(void) +static void o2hb_debug_init(void) { - int ret = -ENOMEM; - o2hb_debug_dir = debugfs_create_dir(O2HB_DEBUG_DIR, NULL); - if (!o2hb_debug_dir) { - mlog_errno(ret); - goto bail; - } - - o2hb_debug_livenodes = o2hb_debug_create(O2HB_DEBUG_LIVENODES, - o2hb_debug_dir, - &o2hb_db_livenodes, - sizeof(*o2hb_db_livenodes), - O2HB_DB_TYPE_LIVENODES, - sizeof(o2hb_live_node_bitmap), - O2NM_MAX_NODES, - o2hb_live_node_bitmap); - if (!o2hb_debug_livenodes) { - mlog_errno(ret); - goto bail; - } - - o2hb_debug_liveregions = o2hb_debug_create(O2HB_DEBUG_LIVEREGIONS, - o2hb_debug_dir, - &o2hb_db_liveregions, - sizeof(*o2hb_db_liveregions), - O2HB_DB_TYPE_LIVEREGIONS, - sizeof(o2hb_live_region_bitmap), - O2NM_MAX_REGIONS, - o2hb_live_region_bitmap); - if (!o2hb_debug_liveregions) { - mlog_errno(ret); - goto bail; - } - o2hb_debug_quorumregions = - o2hb_debug_create(O2HB_DEBUG_QUORUMREGIONS, - o2hb_debug_dir, - &o2hb_db_quorumregions, - sizeof(*o2hb_db_quorumregions), - O2HB_DB_TYPE_QUORUMREGIONS, - sizeof(o2hb_quorum_region_bitmap), - O2NM_MAX_REGIONS, - o2hb_quorum_region_bitmap); - if (!o2hb_debug_quorumregions) { - mlog_errno(ret); - goto bail; - } + o2hb_debug_create(O2HB_DEBUG_LIVENODES, o2hb_debug_dir, + &o2hb_db_livenodes, sizeof(*o2hb_db_livenodes), + O2HB_DB_TYPE_LIVENODES, sizeof(o2hb_live_node_bitmap), + O2NM_MAX_NODES, o2hb_live_node_bitmap); - o2hb_debug_failedregions = - o2hb_debug_create(O2HB_DEBUG_FAILEDREGIONS, - o2hb_debug_dir, - &o2hb_db_failedregions, - sizeof(*o2hb_db_failedregions), - O2HB_DB_TYPE_FAILEDREGIONS, - sizeof(o2hb_failed_region_bitmap), - O2NM_MAX_REGIONS, - o2hb_failed_region_bitmap); - if (!o2hb_debug_failedregions) { - mlog_errno(ret); - goto bail; - } + o2hb_debug_create(O2HB_DEBUG_LIVEREGIONS, o2hb_debug_dir, + &o2hb_db_liveregions, sizeof(*o2hb_db_liveregions), + O2HB_DB_TYPE_LIVEREGIONS, + sizeof(o2hb_live_region_bitmap), O2NM_MAX_REGIONS, + o2hb_live_region_bitmap); - ret = 0; -bail: - if (ret) - o2hb_exit(); + o2hb_debug_create(O2HB_DEBUG_QUORUMREGIONS, o2hb_debug_dir, + &o2hb_db_quorumregions, + sizeof(*o2hb_db_quorumregions), + O2HB_DB_TYPE_QUORUMREGIONS, + sizeof(o2hb_quorum_region_bitmap), O2NM_MAX_REGIONS, + o2hb_quorum_region_bitmap); - return ret; + o2hb_debug_create(O2HB_DEBUG_FAILEDREGIONS, o2hb_debug_dir, + &o2hb_db_failedregions, + sizeof(*o2hb_db_failedregions), + O2HB_DB_TYPE_FAILEDREGIONS, + sizeof(o2hb_failed_region_bitmap), O2NM_MAX_REGIONS, + o2hb_failed_region_bitmap); } -int o2hb_init(void) +void o2hb_init(void) { int i; @@ -1515,38 +1445,34 @@ int o2hb_init(void) for (i = 0; i < ARRAY_SIZE(o2hb_live_slots); i++) INIT_LIST_HEAD(&o2hb_live_slots[i]); - INIT_LIST_HEAD(&o2hb_node_events); - - memset(o2hb_live_node_bitmap, 0, sizeof(o2hb_live_node_bitmap)); - memset(o2hb_region_bitmap, 0, sizeof(o2hb_region_bitmap)); - memset(o2hb_live_region_bitmap, 0, sizeof(o2hb_live_region_bitmap)); - memset(o2hb_quorum_region_bitmap, 0, sizeof(o2hb_quorum_region_bitmap)); - memset(o2hb_failed_region_bitmap, 0, sizeof(o2hb_failed_region_bitmap)); + bitmap_zero(o2hb_live_node_bitmap, O2NM_MAX_NODES); + bitmap_zero(o2hb_region_bitmap, O2NM_MAX_REGIONS); + bitmap_zero(o2hb_live_region_bitmap, O2NM_MAX_REGIONS); + bitmap_zero(o2hb_quorum_region_bitmap, O2NM_MAX_REGIONS); + bitmap_zero(o2hb_failed_region_bitmap, O2NM_MAX_REGIONS); o2hb_dependent_users = 0; - return o2hb_debug_init(); + o2hb_debug_init(); } /* if we're already in a callback then we're already serialized by the sem */ static void o2hb_fill_node_map_from_callback(unsigned long *map, - unsigned bytes) + unsigned int bits) { - BUG_ON(bytes < (BITS_TO_LONGS(O2NM_MAX_NODES) * sizeof(unsigned long))); - - memcpy(map, &o2hb_live_node_bitmap, bytes); + bitmap_copy(map, o2hb_live_node_bitmap, bits); } /* * get a map of all nodes that are heartbeating in any regions */ -void o2hb_fill_node_map(unsigned long *map, unsigned bytes) +void o2hb_fill_node_map(unsigned long *map, unsigned int bits) { /* callers want to serialize this map and callbacks so that they * can trust that they don't miss nodes coming to the party */ down_read(&o2hb_callback_sem); spin_lock(&o2hb_live_lock); - o2hb_fill_node_map_from_callback(map, bytes); + o2hb_fill_node_map_from_callback(map, bits); spin_unlock(&o2hb_live_lock); up_read(&o2hb_callback_sem); } @@ -1571,7 +1497,7 @@ static void o2hb_region_release(struct config_item *item) struct page *page; struct o2hb_region *reg = to_o2hb_region(item); - mlog(ML_HEARTBEAT, "hb region release (%s)\n", reg->hr_dev_name); + mlog(ML_HEARTBEAT, "hb region release (%pg)\n", reg_bdev(reg)); kfree(reg->hr_tmp_block); @@ -1584,16 +1510,12 @@ static void o2hb_region_release(struct config_item *item) kfree(reg->hr_slot_data); } - if (reg->hr_bdev) - blkdev_put(reg->hr_bdev, FMODE_READ|FMODE_WRITE); + if (reg->hr_bdev_file) + fput(reg->hr_bdev_file); kfree(reg->hr_slots); - debugfs_remove(reg->hr_debug_livenodes); - debugfs_remove(reg->hr_debug_regnum); - debugfs_remove(reg->hr_debug_elapsed_time); - debugfs_remove(reg->hr_debug_pinned); - debugfs_remove(reg->hr_debug_dir); + debugfs_remove_recursive(reg->hr_debug_dir); kfree(reg->hr_db_livenodes); kfree(reg->hr_db_regnum); kfree(reg->hr_db_elapsed_time); @@ -1614,10 +1536,11 @@ static int o2hb_read_block_input(struct o2hb_region *reg, { unsigned long bytes; char *p = (char *)page; + int ret; - bytes = simple_strtoul(p, &p, 0); - if (!p || (*p && (*p != '\n'))) - return -EINVAL; + ret = kstrtoul(p, 0, &bytes); + if (ret) + return ret; /* Heartbeat and fs min / max block sizes are the same. */ if (bytes > 4096 || bytes < 512) @@ -1648,7 +1571,7 @@ static ssize_t o2hb_region_block_bytes_store(struct config_item *item, unsigned long block_bytes; unsigned int block_bits; - if (reg->hr_bdev) + if (reg->hr_bdev_file) return -EINVAL; status = o2hb_read_block_input(reg, page, &block_bytes, @@ -1675,12 +1598,13 @@ static ssize_t o2hb_region_start_block_store(struct config_item *item, struct o2hb_region *reg = to_o2hb_region(item); unsigned long long tmp; char *p = (char *)page; + ssize_t ret; - if (reg->hr_bdev) + if (reg->hr_bdev_file) return -EINVAL; - tmp = simple_strtoull(p, &p, 0); - if (!p || (*p && (*p != '\n'))) + ret = kstrtoull(p, 0, &tmp); + if (ret) return -EINVAL; reg->hr_start_block = tmp; @@ -1700,13 +1624,14 @@ static ssize_t o2hb_region_blocks_store(struct config_item *item, struct o2hb_region *reg = to_o2hb_region(item); unsigned long tmp; char *p = (char *)page; + int ret; - if (reg->hr_bdev) + if (reg->hr_bdev_file) return -EINVAL; - tmp = simple_strtoul(p, &p, 0); - if (!p || (*p && (*p != '\n'))) - return -EINVAL; + ret = kstrtoul(p, 0, &tmp); + if (ret) + return ret; if (tmp > O2NM_MAX_NODES || tmp == 0) return -ERANGE; @@ -1720,8 +1645,8 @@ static ssize_t o2hb_region_dev_show(struct config_item *item, char *page) { unsigned int ret = 0; - if (to_o2hb_region(item)->hr_bdev) - ret = sprintf(page, "%s\n", to_o2hb_region(item)->hr_dev_name); + if (to_o2hb_region(item)->hr_bdev_file) + ret = sprintf(page, "%pg\n", reg_bdev(to_o2hb_region(item))); return ret; } @@ -1830,7 +1755,10 @@ out: return ret; } -/* this is acting as commit; we set up all of hr_bdev and hr_task or nothing */ +/* + * this is acting as commit; we set up all of hr_bdev_file and hr_task or + * nothing + */ static ssize_t o2hb_region_dev_store(struct config_item *item, const char *page, size_t count) @@ -1840,52 +1768,44 @@ static ssize_t o2hb_region_dev_store(struct config_item *item, long fd; int sectsize; char *p = (char *)page; - struct fd f; - struct inode *inode; ssize_t ret = -EINVAL; int live_threshold; - if (reg->hr_bdev) - goto out; + if (reg->hr_bdev_file) + return -EINVAL; /* We can't heartbeat without having had our node number * configured yet. */ if (o2nm_this_node() == O2NM_MAX_NODES) - goto out; + return -EINVAL; - fd = simple_strtol(p, &p, 0); - if (!p || (*p && (*p != '\n'))) - goto out; + ret = kstrtol(p, 0, &fd); + if (ret < 0) + return -EINVAL; if (fd < 0 || fd >= INT_MAX) - goto out; + return -EINVAL; - f = fdget(fd); - if (f.file == NULL) - goto out; + CLASS(fd, f)(fd); + if (fd_empty(f)) + return -EINVAL; if (reg->hr_blocks == 0 || reg->hr_start_block == 0 || reg->hr_block_bytes == 0) - goto out2; - - inode = igrab(f.file->f_mapping->host); - if (inode == NULL) - goto out2; + return -EINVAL; - if (!S_ISBLK(inode->i_mode)) - goto out3; + if (!S_ISBLK(fd_file(f)->f_mapping->host->i_mode)) + return -EINVAL; - reg->hr_bdev = I_BDEV(f.file->f_mapping->host); - ret = blkdev_get(reg->hr_bdev, FMODE_WRITE | FMODE_READ, NULL); - if (ret) { - reg->hr_bdev = NULL; - goto out3; + reg->hr_bdev_file = bdev_file_open_by_dev(fd_file(f)->f_mapping->host->i_rdev, + BLK_OPEN_WRITE | BLK_OPEN_READ, NULL, NULL); + if (IS_ERR(reg->hr_bdev_file)) { + ret = PTR_ERR(reg->hr_bdev_file); + reg->hr_bdev_file = NULL; + return ret; } - inode = NULL; - - bdevname(reg->hr_bdev, reg->hr_dev_name); - sectsize = bdev_logical_block_size(reg->hr_bdev); + sectsize = bdev_logical_block_size(reg_bdev(reg)); if (sectsize != reg->hr_block_bytes) { mlog(ML_ERROR, "blocksize %u incorrect for device, expected %d", @@ -1980,19 +1900,13 @@ static ssize_t o2hb_region_dev_store(struct config_item *item, ret = -EIO; if (hb_task && o2hb_global_heartbeat_active()) - printk(KERN_NOTICE "o2hb: Heartbeat started on region %s (%s)\n", - config_item_name(®->hr_item), reg->hr_dev_name); + printk(KERN_NOTICE "o2hb: Heartbeat started on region %s (%pg)\n", + config_item_name(®->hr_item), reg_bdev(reg)); out3: - iput(inode); -out2: - fdput(f); -out: if (ret < 0) { - if (reg->hr_bdev) { - blkdev_put(reg->hr_bdev, FMODE_READ|FMODE_WRITE); - reg->hr_bdev = NULL; - } + fput(reg->hr_bdev_file); + reg->hr_bdev_file = NULL; } return ret; } @@ -2052,69 +1966,33 @@ static struct o2hb_heartbeat_group *to_o2hb_heartbeat_group(struct config_group : NULL; } -static int o2hb_debug_region_init(struct o2hb_region *reg, struct dentry *dir) +static void o2hb_debug_region_init(struct o2hb_region *reg, + struct dentry *parent) { - int ret = -ENOMEM; + struct dentry *dir; - reg->hr_debug_dir = - debugfs_create_dir(config_item_name(®->hr_item), dir); - if (!reg->hr_debug_dir) { - mlog_errno(ret); - goto bail; - } + dir = debugfs_create_dir(config_item_name(®->hr_item), parent); + reg->hr_debug_dir = dir; - reg->hr_debug_livenodes = - o2hb_debug_create(O2HB_DEBUG_LIVENODES, - reg->hr_debug_dir, - &(reg->hr_db_livenodes), - sizeof(*(reg->hr_db_livenodes)), - O2HB_DB_TYPE_REGION_LIVENODES, - sizeof(reg->hr_live_node_bitmap), - O2NM_MAX_NODES, reg); - if (!reg->hr_debug_livenodes) { - mlog_errno(ret); - goto bail; - } + o2hb_debug_create(O2HB_DEBUG_LIVENODES, dir, &(reg->hr_db_livenodes), + sizeof(*(reg->hr_db_livenodes)), + O2HB_DB_TYPE_REGION_LIVENODES, + sizeof(reg->hr_live_node_bitmap), O2NM_MAX_NODES, + reg); - reg->hr_debug_regnum = - o2hb_debug_create(O2HB_DEBUG_REGION_NUMBER, - reg->hr_debug_dir, - &(reg->hr_db_regnum), - sizeof(*(reg->hr_db_regnum)), - O2HB_DB_TYPE_REGION_NUMBER, - 0, O2NM_MAX_NODES, reg); - if (!reg->hr_debug_regnum) { - mlog_errno(ret); - goto bail; - } + o2hb_debug_create(O2HB_DEBUG_REGION_NUMBER, dir, &(reg->hr_db_regnum), + sizeof(*(reg->hr_db_regnum)), + O2HB_DB_TYPE_REGION_NUMBER, 0, O2NM_MAX_NODES, reg); - reg->hr_debug_elapsed_time = - o2hb_debug_create(O2HB_DEBUG_REGION_ELAPSED_TIME, - reg->hr_debug_dir, - &(reg->hr_db_elapsed_time), - sizeof(*(reg->hr_db_elapsed_time)), - O2HB_DB_TYPE_REGION_ELAPSED_TIME, - 0, 0, reg); - if (!reg->hr_debug_elapsed_time) { - mlog_errno(ret); - goto bail; - } + o2hb_debug_create(O2HB_DEBUG_REGION_ELAPSED_TIME, dir, + &(reg->hr_db_elapsed_time), + sizeof(*(reg->hr_db_elapsed_time)), + O2HB_DB_TYPE_REGION_ELAPSED_TIME, 0, 0, reg); - reg->hr_debug_pinned = - o2hb_debug_create(O2HB_DEBUG_REGION_PINNED, - reg->hr_debug_dir, - &(reg->hr_db_pinned), - sizeof(*(reg->hr_db_pinned)), - O2HB_DB_TYPE_REGION_PINNED, - 0, 0, reg); - if (!reg->hr_debug_pinned) { - mlog_errno(ret); - goto bail; - } + o2hb_debug_create(O2HB_DEBUG_REGION_PINNED, dir, &(reg->hr_db_pinned), + sizeof(*(reg->hr_db_pinned)), + O2HB_DB_TYPE_REGION_PINNED, 0, 0, reg); - ret = 0; -bail: - return ret; } static struct config_item *o2hb_heartbeat_group_make_item(struct config_group *group, @@ -2161,7 +2039,7 @@ static struct config_item *o2hb_heartbeat_group_make_item(struct config_group *g o2hb_nego_timeout_handler, reg, NULL, ®->hr_handler_list); if (ret) - goto free; + goto remove_item; ret = o2net_register_handler(O2HB_NEGO_APPROVE_MSG, reg->hr_key, sizeof(struct o2hb_nego_msg), @@ -2170,16 +2048,18 @@ static struct config_item *o2hb_heartbeat_group_make_item(struct config_group *g if (ret) goto unregister_handler; - ret = o2hb_debug_region_init(reg, o2hb_debug_dir); - if (ret) { - config_item_put(®->hr_item); - goto unregister_handler; - } + o2hb_debug_region_init(reg, o2hb_debug_dir); return ®->hr_item; unregister_handler: o2net_unregister_handler_list(®->hr_handler_list); +remove_item: + spin_lock(&o2hb_live_lock); + list_del(®->hr_all_item); + if (o2hb_global_heartbeat_active()) + clear_bit(reg->hr_region_num, o2hb_region_bitmap); + spin_unlock(&o2hb_live_lock); free: kfree(reg); return ERR_PTR(ret); @@ -2210,10 +2090,10 @@ static void o2hb_heartbeat_group_drop_item(struct config_group *group, quorum_region = 1; clear_bit(reg->hr_region_num, o2hb_quorum_region_bitmap); spin_unlock(&o2hb_live_lock); - printk(KERN_NOTICE "o2hb: Heartbeat %s on region %s (%s)\n", + printk(KERN_NOTICE "o2hb: Heartbeat %s on region %s (%pg)\n", ((atomic_read(®->hr_steady_iterations) == 0) ? "stopped" : "start aborted"), config_item_name(item), - reg->hr_dev_name); + reg_bdev(reg)); } /* @@ -2259,10 +2139,11 @@ static ssize_t o2hb_heartbeat_group_dead_threshold_store(struct config_item *ite { unsigned long tmp; char *p = (char *)page; + int ret; - tmp = simple_strtoul(p, &p, 10); - if (!p || (*p && (*p != '\n'))) - return -EINVAL; + ret = kstrtoul(p, 10, &tmp); + if (ret) + return ret; /* this will validate ranges for us. */ o2hb_dead_threshold_set((unsigned int) tmp); @@ -2587,7 +2468,7 @@ int o2hb_check_node_heartbeating_no_sem(u8 node_num) unsigned long testing_map[BITS_TO_LONGS(O2NM_MAX_NODES)]; spin_lock(&o2hb_live_lock); - o2hb_fill_node_map_from_callback(testing_map, sizeof(testing_map)); + o2hb_fill_node_map_from_callback(testing_map, O2NM_MAX_NODES); spin_unlock(&o2hb_live_lock); if (!test_bit(node_num, testing_map)) { mlog(ML_HEARTBEAT, @@ -2604,7 +2485,7 @@ int o2hb_check_node_heartbeating_from_callback(u8 node_num) { unsigned long testing_map[BITS_TO_LONGS(O2NM_MAX_NODES)]; - o2hb_fill_node_map_from_callback(testing_map, sizeof(testing_map)); + o2hb_fill_node_map_from_callback(testing_map, O2NM_MAX_NODES); if (!test_bit(node_num, testing_map)) { mlog(ML_HEARTBEAT, "node (%u) does not have heartbeating enabled.\n", |