Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 1 | /* |
| 2 | drbd_proc.c |
| 3 | |
| 4 | This file is part of DRBD by Philipp Reisner and Lars Ellenberg. |
| 5 | |
| 6 | Copyright (C) 2001-2008, LINBIT Information Technologies GmbH. |
| 7 | Copyright (C) 1999-2008, Philipp Reisner <philipp.reisner@linbit.com>. |
| 8 | Copyright (C) 2002-2008, Lars Ellenberg <lars.ellenberg@linbit.com>. |
| 9 | |
| 10 | drbd is free software; you can redistribute it and/or modify |
| 11 | it under the terms of the GNU General Public License as published by |
| 12 | the Free Software Foundation; either version 2, or (at your option) |
| 13 | any later version. |
| 14 | |
| 15 | drbd is distributed in the hope that it will be useful, |
| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | GNU General Public License for more details. |
| 19 | |
| 20 | You should have received a copy of the GNU General Public License |
| 21 | along with drbd; see the file COPYING. If not, write to |
| 22 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| 23 | |
| 24 | */ |
| 25 | |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 26 | #include <linux/module.h> |
| 27 | |
Fabian Frederick | 7e5fec3 | 2016-06-14 00:26:35 +0200 | [diff] [blame] | 28 | #include <linux/uaccess.h> |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 29 | #include <linux/fs.h> |
| 30 | #include <linux/file.h> |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 31 | #include <linux/proc_fs.h> |
| 32 | #include <linux/seq_file.h> |
| 33 | #include <linux/drbd.h> |
| 34 | #include "drbd_int.h" |
| 35 | |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 36 | struct proc_dir_entry *drbd_proc; |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 37 | |
Rashika Kheria | fbe0d91 | 2013-12-19 15:04:47 +0530 | [diff] [blame] | 38 | static void seq_printf_with_thousands_grouping(struct seq_file *seq, long v) |
Lars Ellenberg | 439d595 | 2010-11-05 09:52:46 +0100 | [diff] [blame] | 39 | { |
| 40 | /* v is in kB/sec. We don't expect TiByte/sec yet. */ |
| 41 | if (unlikely(v >= 1000000)) { |
| 42 | /* cool: > GiByte/s */ |
| 43 | seq_printf(seq, "%ld,", v / 1000000); |
Lars Ellenberg | fc251d5 | 2011-06-03 21:13:17 +0200 | [diff] [blame] | 44 | v %= 1000000; |
Lars Ellenberg | 439d595 | 2010-11-05 09:52:46 +0100 | [diff] [blame] | 45 | seq_printf(seq, "%03ld,%03ld", v/1000, v % 1000); |
| 46 | } else if (likely(v >= 1000)) |
| 47 | seq_printf(seq, "%ld,%03ld", v/1000, v % 1000); |
| 48 | else |
| 49 | seq_printf(seq, "%ld", v); |
| 50 | } |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 51 | |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 52 | static void drbd_get_syncer_progress(struct drbd_device *device, |
| 53 | union drbd_dev_state state, unsigned long *rs_total, |
| 54 | unsigned long *bits_left, unsigned int *per_mil_done) |
| 55 | { |
| 56 | /* this is to break it at compile time when we change that, in case we |
| 57 | * want to support more than (1<<32) bits on a 32bit arch. */ |
| 58 | typecheck(unsigned long, device->rs_total); |
| 59 | *rs_total = device->rs_total; |
| 60 | |
| 61 | /* note: both rs_total and rs_left are in bits, i.e. in |
| 62 | * units of BM_BLOCK_SIZE. |
| 63 | * for the percentage, we don't care. */ |
| 64 | |
| 65 | if (state.conn == C_VERIFY_S || state.conn == C_VERIFY_T) |
| 66 | *bits_left = device->ov_left; |
| 67 | else |
| 68 | *bits_left = drbd_bm_total_weight(device) - device->rs_failed; |
| 69 | /* >> 10 to prevent overflow, |
| 70 | * +1 to prevent division by zero */ |
| 71 | if (*bits_left > *rs_total) { |
| 72 | /* D'oh. Maybe a logic bug somewhere. More likely just a race |
| 73 | * between state change and reset of rs_total. |
| 74 | */ |
| 75 | *bits_left = *rs_total; |
| 76 | *per_mil_done = *rs_total ? 0 : 1000; |
| 77 | } else { |
| 78 | /* Make sure the division happens in long context. |
| 79 | * We allow up to one petabyte storage right now, |
| 80 | * at a granularity of 4k per bit that is 2**38 bits. |
| 81 | * After shift right and multiplication by 1000, |
| 82 | * this should still fit easily into a 32bit long, |
| 83 | * so we don't need a 64bit division on 32bit arch. |
| 84 | * Note: currently we don't support such large bitmaps on 32bit |
| 85 | * arch anyways, but no harm done to be prepared for it here. |
| 86 | */ |
| 87 | unsigned int shift = *rs_total > UINT_MAX ? 16 : 10; |
| 88 | unsigned long left = *bits_left >> shift; |
| 89 | unsigned long total = 1UL + (*rs_total >> shift); |
| 90 | unsigned long tmp = 1000UL - left * 1000UL/total; |
| 91 | *per_mil_done = tmp; |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 96 | /*lge |
| 97 | * progress bars shamelessly adapted from driver/md/md.c |
| 98 | * output looks like |
| 99 | * [=====>..............] 33.5% (23456/123456) |
| 100 | * finish: 2:20:20 speed: 6,345 (6,456) K/sec |
| 101 | */ |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 102 | static void drbd_syncer_progress(struct drbd_device *device, struct seq_file *seq, |
| 103 | union drbd_dev_state state) |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 104 | { |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 105 | unsigned long db, dt, dbdt, rt, rs_total, rs_left; |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 106 | unsigned int res; |
| 107 | int i, x, y; |
Lars Ellenberg | 1d7734a | 2010-08-11 21:21:50 +0200 | [diff] [blame] | 108 | int stalled = 0; |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 109 | |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 110 | drbd_get_syncer_progress(device, state, &rs_total, &rs_left, &res); |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 111 | |
| 112 | x = res/50; |
| 113 | y = 20-x; |
Fabian Frederick | 7e5fec3 | 2016-06-14 00:26:35 +0200 | [diff] [blame] | 114 | seq_puts(seq, "\t["); |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 115 | for (i = 1; i < x; i++) |
Fabian Frederick | 7e5fec3 | 2016-06-14 00:26:35 +0200 | [diff] [blame] | 116 | seq_putc(seq, '='); |
| 117 | seq_putc(seq, '>'); |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 118 | for (i = 0; i < y; i++) |
Markus Elfring | 427fd2b | 2017-08-29 10:20:42 +0200 | [diff] [blame] | 119 | seq_putc(seq, '.'); |
Fabian Frederick | 7e5fec3 | 2016-06-14 00:26:35 +0200 | [diff] [blame] | 120 | seq_puts(seq, "] "); |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 121 | |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 122 | if (state.conn == C_VERIFY_S || state.conn == C_VERIFY_T) |
Fabian Frederick | 7e5fec3 | 2016-06-14 00:26:35 +0200 | [diff] [blame] | 123 | seq_puts(seq, "verified:"); |
Lars Ellenberg | 5f9915b | 2010-11-09 14:15:24 +0100 | [diff] [blame] | 124 | else |
Fabian Frederick | 7e5fec3 | 2016-06-14 00:26:35 +0200 | [diff] [blame] | 125 | seq_puts(seq, "sync'ed:"); |
Lars Ellenberg | 5f9915b | 2010-11-09 14:15:24 +0100 | [diff] [blame] | 126 | seq_printf(seq, "%3u.%u%% ", res / 10, res % 10); |
| 127 | |
Lars Ellenberg | 4b0715f | 2010-12-14 15:13:04 +0100 | [diff] [blame] | 128 | /* if more than a few GB, display in MB */ |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 129 | if (rs_total > (4UL << (30 - BM_BLOCK_SHIFT))) |
Lars Ellenberg | 4b0715f | 2010-12-14 15:13:04 +0100 | [diff] [blame] | 130 | seq_printf(seq, "(%lu/%lu)M", |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 131 | (unsigned long) Bit2KB(rs_left >> 10), |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 132 | (unsigned long) Bit2KB(rs_total >> 10)); |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 133 | else |
Philipp Reisner | 590001c | 2014-09-11 14:29:13 +0200 | [diff] [blame] | 134 | seq_printf(seq, "(%lu/%lu)K", |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 135 | (unsigned long) Bit2KB(rs_left), |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 136 | (unsigned long) Bit2KB(rs_total)); |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 137 | |
Fabian Frederick | 7e5fec3 | 2016-06-14 00:26:35 +0200 | [diff] [blame] | 138 | seq_puts(seq, "\n\t"); |
Philipp Reisner | 590001c | 2014-09-11 14:29:13 +0200 | [diff] [blame] | 139 | |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 140 | /* see drivers/md/md.c |
| 141 | * We do not want to overflow, so the order of operands and |
| 142 | * the * 100 / 100 trick are important. We do a +1 to be |
| 143 | * safe against division by zero. We only estimate anyway. |
| 144 | * |
| 145 | * dt: time from mark until now |
| 146 | * db: blocks written from mark until now |
| 147 | * rt: remaining time |
| 148 | */ |
Lars Ellenberg | 1d7734a | 2010-08-11 21:21:50 +0200 | [diff] [blame] | 149 | /* Rolling marks. last_mark+1 may just now be modified. last_mark+2 is |
| 150 | * at least (DRBD_SYNC_MARKS-2)*DRBD_SYNC_MARK_STEP old, and has at |
| 151 | * least DRBD_SYNC_MARK_STEP time before it will be modified. */ |
Lars Ellenberg | 439d595 | 2010-11-05 09:52:46 +0100 | [diff] [blame] | 152 | /* ------------------------ ~18s average ------------------------ */ |
Andreas Gruenbacher | b30ab79 | 2011-07-03 13:26:43 +0200 | [diff] [blame] | 153 | i = (device->rs_last_mark + 2) % DRBD_SYNC_MARKS; |
| 154 | dt = (jiffies - device->rs_mark_time[i]) / HZ; |
Lars Ellenberg | 9ae4726 | 2014-04-28 18:43:16 +0200 | [diff] [blame] | 155 | if (dt > 180) |
Lars Ellenberg | 1d7734a | 2010-08-11 21:21:50 +0200 | [diff] [blame] | 156 | stalled = 1; |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 157 | |
| 158 | if (!dt) |
| 159 | dt++; |
Andreas Gruenbacher | b30ab79 | 2011-07-03 13:26:43 +0200 | [diff] [blame] | 160 | db = device->rs_mark_left[i] - rs_left; |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 161 | rt = (dt * (rs_left / (db/100+1)))/100; /* seconds */ |
| 162 | |
| 163 | seq_printf(seq, "finish: %lu:%02lu:%02lu", |
| 164 | rt / 3600, (rt % 3600) / 60, rt % 60); |
| 165 | |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 166 | dbdt = Bit2KB(db/dt); |
Fabian Frederick | 7e5fec3 | 2016-06-14 00:26:35 +0200 | [diff] [blame] | 167 | seq_puts(seq, " speed: "); |
Lars Ellenberg | 439d595 | 2010-11-05 09:52:46 +0100 | [diff] [blame] | 168 | seq_printf_with_thousands_grouping(seq, dbdt); |
Fabian Frederick | 7e5fec3 | 2016-06-14 00:26:35 +0200 | [diff] [blame] | 169 | seq_puts(seq, " ("); |
Lars Ellenberg | 439d595 | 2010-11-05 09:52:46 +0100 | [diff] [blame] | 170 | /* ------------------------- ~3s average ------------------------ */ |
Roland Kammerer | 183ece3 | 2017-08-29 10:20:46 +0200 | [diff] [blame] | 171 | if (drbd_proc_details >= 1) { |
Lars Ellenberg | 439d595 | 2010-11-05 09:52:46 +0100 | [diff] [blame] | 172 | /* this is what drbd_rs_should_slow_down() uses */ |
Andreas Gruenbacher | b30ab79 | 2011-07-03 13:26:43 +0200 | [diff] [blame] | 173 | i = (device->rs_last_mark + DRBD_SYNC_MARKS-1) % DRBD_SYNC_MARKS; |
| 174 | dt = (jiffies - device->rs_mark_time[i]) / HZ; |
Lars Ellenberg | 439d595 | 2010-11-05 09:52:46 +0100 | [diff] [blame] | 175 | if (!dt) |
| 176 | dt++; |
Andreas Gruenbacher | b30ab79 | 2011-07-03 13:26:43 +0200 | [diff] [blame] | 177 | db = device->rs_mark_left[i] - rs_left; |
Lars Ellenberg | 439d595 | 2010-11-05 09:52:46 +0100 | [diff] [blame] | 178 | dbdt = Bit2KB(db/dt); |
| 179 | seq_printf_with_thousands_grouping(seq, dbdt); |
Fabian Frederick | 7e5fec3 | 2016-06-14 00:26:35 +0200 | [diff] [blame] | 180 | seq_puts(seq, " -- "); |
Lars Ellenberg | 439d595 | 2010-11-05 09:52:46 +0100 | [diff] [blame] | 181 | } |
| 182 | |
| 183 | /* --------------------- long term average ---------------------- */ |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 184 | /* mean speed since syncer started |
| 185 | * we do account for PausedSync periods */ |
Andreas Gruenbacher | b30ab79 | 2011-07-03 13:26:43 +0200 | [diff] [blame] | 186 | dt = (jiffies - device->rs_start - device->rs_paused) / HZ; |
Dan Carpenter | 2265769 | 2010-08-12 00:38:45 +0200 | [diff] [blame] | 187 | if (dt == 0) |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 188 | dt = 1; |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 189 | db = rs_total - rs_left; |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 190 | dbdt = Bit2KB(db/dt); |
Lars Ellenberg | 439d595 | 2010-11-05 09:52:46 +0100 | [diff] [blame] | 191 | seq_printf_with_thousands_grouping(seq, dbdt); |
Fabian Frederick | 7e5fec3 | 2016-06-14 00:26:35 +0200 | [diff] [blame] | 192 | seq_putc(seq, ')'); |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 193 | |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 194 | if (state.conn == C_SYNC_TARGET || |
| 195 | state.conn == C_VERIFY_S) { |
Fabian Frederick | 7e5fec3 | 2016-06-14 00:26:35 +0200 | [diff] [blame] | 196 | seq_puts(seq, " want: "); |
Andreas Gruenbacher | b30ab79 | 2011-07-03 13:26:43 +0200 | [diff] [blame] | 197 | seq_printf_with_thousands_grouping(seq, device->c_sync_rate); |
Lars Ellenberg | 1d7734a | 2010-08-11 21:21:50 +0200 | [diff] [blame] | 198 | } |
| 199 | seq_printf(seq, " K/sec%s\n", stalled ? " (stalled)" : ""); |
Lars Ellenberg | 5f9915b | 2010-11-09 14:15:24 +0100 | [diff] [blame] | 200 | |
Roland Kammerer | 183ece3 | 2017-08-29 10:20:46 +0200 | [diff] [blame] | 201 | if (drbd_proc_details >= 1) { |
Lars Ellenberg | 5f9915b | 2010-11-09 14:15:24 +0100 | [diff] [blame] | 202 | /* 64 bit: |
| 203 | * we convert to sectors in the display below. */ |
Andreas Gruenbacher | b30ab79 | 2011-07-03 13:26:43 +0200 | [diff] [blame] | 204 | unsigned long bm_bits = drbd_bm_bits(device); |
Lars Ellenberg | 4896e8c | 2010-11-11 22:41:04 +0100 | [diff] [blame] | 205 | unsigned long bit_pos; |
Lars Ellenberg | 58ffa58 | 2012-07-26 14:09:49 +0200 | [diff] [blame] | 206 | unsigned long long stop_sector = 0; |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 207 | if (state.conn == C_VERIFY_S || |
| 208 | state.conn == C_VERIFY_T) { |
Andreas Gruenbacher | b30ab79 | 2011-07-03 13:26:43 +0200 | [diff] [blame] | 209 | bit_pos = bm_bits - device->ov_left; |
| 210 | if (verify_can_do_stop_sector(device)) |
| 211 | stop_sector = device->ov_stop_sector; |
Lars Ellenberg | 58ffa58 | 2012-07-26 14:09:49 +0200 | [diff] [blame] | 212 | } else |
Andreas Gruenbacher | b30ab79 | 2011-07-03 13:26:43 +0200 | [diff] [blame] | 213 | bit_pos = device->bm_resync_fo; |
Lars Ellenberg | 5f9915b | 2010-11-09 14:15:24 +0100 | [diff] [blame] | 214 | /* Total sectors may be slightly off for oddly |
| 215 | * sized devices. So what. */ |
| 216 | seq_printf(seq, |
Lars Ellenberg | 58ffa58 | 2012-07-26 14:09:49 +0200 | [diff] [blame] | 217 | "\t%3d%% sector pos: %llu/%llu", |
Lars Ellenberg | 5f9915b | 2010-11-09 14:15:24 +0100 | [diff] [blame] | 218 | (int)(bit_pos / (bm_bits/100+1)), |
Lars Ellenberg | 4896e8c | 2010-11-11 22:41:04 +0100 | [diff] [blame] | 219 | (unsigned long long)bit_pos * BM_SECT_PER_BIT, |
| 220 | (unsigned long long)bm_bits * BM_SECT_PER_BIT); |
Lars Ellenberg | 58ffa58 | 2012-07-26 14:09:49 +0200 | [diff] [blame] | 221 | if (stop_sector != 0 && stop_sector != ULLONG_MAX) |
| 222 | seq_printf(seq, " stop sector: %llu", stop_sector); |
Fabian Frederick | 7e5fec3 | 2016-06-14 00:26:35 +0200 | [diff] [blame] | 223 | seq_putc(seq, '\n'); |
Lars Ellenberg | 5f9915b | 2010-11-09 14:15:24 +0100 | [diff] [blame] | 224 | } |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 225 | } |
| 226 | |
Christoph Hellwig | 004fd11 | 2018-04-11 16:46:11 +0200 | [diff] [blame] | 227 | int drbd_seq_show(struct seq_file *seq, void *v) |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 228 | { |
Philipp Reisner | 81a5d60 | 2011-02-22 19:53:16 -0500 | [diff] [blame] | 229 | int i, prev_i = -1; |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 230 | const char *sn; |
Andreas Gruenbacher | b30ab79 | 2011-07-03 13:26:43 +0200 | [diff] [blame] | 231 | struct drbd_device *device; |
Philipp Reisner | 44ed167 | 2011-04-19 17:10:19 +0200 | [diff] [blame] | 232 | struct net_conf *nc; |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 233 | union drbd_dev_state state; |
Philipp Reisner | 44ed167 | 2011-04-19 17:10:19 +0200 | [diff] [blame] | 234 | char wp; |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 235 | |
| 236 | static char write_ordering_chars[] = { |
Andreas Gruenbacher | f6ba863 | 2014-08-13 18:33:55 +0200 | [diff] [blame] | 237 | [WO_NONE] = 'n', |
| 238 | [WO_DRAIN_IO] = 'd', |
| 239 | [WO_BDEV_FLUSH] = 'f', |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 240 | }; |
| 241 | |
| 242 | seq_printf(seq, "version: " REL_VERSION " (api:%d/proto:%d-%d)\n%s\n", |
| 243 | API_VERSION, PRO_VERSION_MIN, PRO_VERSION_MAX, drbd_buildtag()); |
| 244 | |
| 245 | /* |
| 246 | cs .. connection state |
| 247 | ro .. node role (local/remote) |
| 248 | ds .. disk state (local/remote) |
| 249 | protocol |
| 250 | various flags |
| 251 | ns .. network send |
| 252 | nr .. network receive |
| 253 | dw .. disk write |
| 254 | dr .. disk read |
| 255 | al .. activity log write count |
| 256 | bm .. bitmap update write count |
| 257 | pe .. pending (waiting for ack or data reply) |
| 258 | ua .. unack'd (still need to send ack or data reply) |
| 259 | ap .. application requests accepted, but not yet completed |
| 260 | ep .. number of epochs currently "on the fly", P_BARRIER_ACK pending |
| 261 | wo .. write ordering mode currently in use |
| 262 | oos .. known out-of-sync kB |
| 263 | */ |
| 264 | |
Philipp Reisner | c141ebd | 2011-05-05 16:13:10 +0200 | [diff] [blame] | 265 | rcu_read_lock(); |
Andreas Gruenbacher | 05a10ec | 2011-06-07 22:54:17 +0200 | [diff] [blame] | 266 | idr_for_each_entry(&drbd_devices, device, i) { |
Philipp Reisner | 81a5d60 | 2011-02-22 19:53:16 -0500 | [diff] [blame] | 267 | if (prev_i != i - 1) |
Fabian Frederick | 7e5fec3 | 2016-06-14 00:26:35 +0200 | [diff] [blame] | 268 | seq_putc(seq, '\n'); |
Philipp Reisner | 81a5d60 | 2011-02-22 19:53:16 -0500 | [diff] [blame] | 269 | prev_i = i; |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 270 | |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 271 | state = device->state; |
| 272 | sn = drbd_conn_str(state.conn); |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 273 | |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 274 | if (state.conn == C_STANDALONE && |
| 275 | state.disk == D_DISKLESS && |
| 276 | state.role == R_SECONDARY) { |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 277 | seq_printf(seq, "%2d: cs:Unconfigured\n", i); |
| 278 | } else { |
Andreas Gruenbacher | b30ab79 | 2011-07-03 13:26:43 +0200 | [diff] [blame] | 279 | /* reset device->congestion_reason */ |
Jan Kara | dc3b17c | 2017-02-02 15:56:50 +0100 | [diff] [blame] | 280 | bdi_rw_congested(device->rq_queue->backing_dev_info); |
Lars Ellenberg | 8a94317 | 2012-07-30 09:09:36 +0200 | [diff] [blame] | 281 | |
Andreas Gruenbacher | a6b32bc | 2011-05-31 14:33:49 +0200 | [diff] [blame] | 282 | nc = rcu_dereference(first_peer_device(device)->connection->net_conf); |
Philipp Reisner | 44ed167 | 2011-04-19 17:10:19 +0200 | [diff] [blame] | 283 | wp = nc ? nc->wire_protocol - DRBD_PROT_A + 'A' : ' '; |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 284 | seq_printf(seq, |
Philipp Reisner | 0778286 | 2010-08-31 12:00:50 +0200 | [diff] [blame] | 285 | "%2d: cs:%s ro:%s/%s ds:%s/%s %c %c%c%c%c%c%c\n" |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 286 | " ns:%u nr:%u dw:%u dr:%u al:%u bm:%u " |
| 287 | "lo:%d pe:%d ua:%d ap:%d ep:%d wo:%c", |
| 288 | i, sn, |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 289 | drbd_role_str(state.role), |
| 290 | drbd_role_str(state.peer), |
| 291 | drbd_disk_str(state.disk), |
| 292 | drbd_disk_str(state.pdsk), |
Philipp Reisner | 44ed167 | 2011-04-19 17:10:19 +0200 | [diff] [blame] | 293 | wp, |
Andreas Gruenbacher | b30ab79 | 2011-07-03 13:26:43 +0200 | [diff] [blame] | 294 | drbd_suspended(device) ? 's' : 'r', |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 295 | state.aftr_isp ? 'a' : '-', |
| 296 | state.peer_isp ? 'p' : '-', |
| 297 | state.user_isp ? 'u' : '-', |
Andreas Gruenbacher | b30ab79 | 2011-07-03 13:26:43 +0200 | [diff] [blame] | 298 | device->congestion_reason ?: '-', |
| 299 | test_bit(AL_SUSPENDED, &device->flags) ? 's' : '-', |
| 300 | device->send_cnt/2, |
| 301 | device->recv_cnt/2, |
| 302 | device->writ_cnt/2, |
| 303 | device->read_cnt/2, |
| 304 | device->al_writ_cnt, |
| 305 | device->bm_writ_cnt, |
| 306 | atomic_read(&device->local_cnt), |
| 307 | atomic_read(&device->ap_pending_cnt) + |
| 308 | atomic_read(&device->rs_pending_cnt), |
| 309 | atomic_read(&device->unacked_cnt), |
| 310 | atomic_read(&device->ap_bio_cnt), |
Andreas Gruenbacher | a6b32bc | 2011-05-31 14:33:49 +0200 | [diff] [blame] | 311 | first_peer_device(device)->connection->epochs, |
Philipp Reisner | e952658 | 2013-11-22 15:53:41 +0100 | [diff] [blame] | 312 | write_ordering_chars[device->resource->write_ordering] |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 313 | ); |
Lars Ellenberg | 18edc0b | 2010-11-09 14:12:10 +0100 | [diff] [blame] | 314 | seq_printf(seq, " oos:%llu\n", |
| 315 | Bit2KB((unsigned long long) |
Andreas Gruenbacher | b30ab79 | 2011-07-03 13:26:43 +0200 | [diff] [blame] | 316 | drbd_bm_total_weight(device))); |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 317 | } |
Lars Ellenberg | a5655da | 2014-03-11 13:47:55 +0100 | [diff] [blame] | 318 | if (state.conn == C_SYNC_SOURCE || |
| 319 | state.conn == C_SYNC_TARGET || |
| 320 | state.conn == C_VERIFY_S || |
| 321 | state.conn == C_VERIFY_T) |
| 322 | drbd_syncer_progress(device, seq, state); |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 323 | |
Roland Kammerer | 183ece3 | 2017-08-29 10:20:46 +0200 | [diff] [blame] | 324 | if (drbd_proc_details >= 1 && get_ldev_if_state(device, D_FAILED)) { |
Andreas Gruenbacher | b30ab79 | 2011-07-03 13:26:43 +0200 | [diff] [blame] | 325 | lc_seq_printf_stats(seq, device->resync); |
| 326 | lc_seq_printf_stats(seq, device->act_log); |
| 327 | put_ldev(device); |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 328 | } |
Lars Ellenberg | ad3fee7 | 2013-12-20 11:22:13 +0100 | [diff] [blame] | 329 | |
Roland Kammerer | 183ece3 | 2017-08-29 10:20:46 +0200 | [diff] [blame] | 330 | if (drbd_proc_details >= 2) |
Lars Ellenberg | ad3fee7 | 2013-12-20 11:22:13 +0100 | [diff] [blame] | 331 | seq_printf(seq, "\tblocked on activity log: %d\n", atomic_read(&device->ap_actlog_cnt)); |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 332 | } |
Philipp Reisner | c141ebd | 2011-05-05 16:13:10 +0200 | [diff] [blame] | 333 | rcu_read_unlock(); |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 334 | |
| 335 | return 0; |
| 336 | } |