1 // SPDX-License-Identifier: GPL-2.0
4 #include "disk_groups.h"
7 #include "sb-members.h"
10 #define x(t, n, ...) [n] = #t,
11 static const char * const bch2_iops_measurements[] = {
12 BCH_IOPS_MEASUREMENTS()
16 char * const bch2_member_error_strs[] = {
17 BCH_MEMBER_ERROR_TYPES()
22 /* Code for bch_sb_field_members_v1: */
24 struct bch_member *bch2_members_v2_get_mut(struct bch_sb *sb, int i)
26 return __bch2_members_v2_get_mut(bch2_sb_field_get(sb, members_v2), i);
29 static struct bch_member members_v2_get(struct bch_sb_field_members_v2 *mi, int i)
31 struct bch_member ret, *p = __bch2_members_v2_get_mut(mi, i);
32 memset(&ret, 0, sizeof(ret));
33 memcpy(&ret, p, min_t(size_t, le16_to_cpu(mi->member_bytes), sizeof(ret)));
37 static struct bch_member *members_v1_get_mut(struct bch_sb_field_members_v1 *mi, int i)
39 return (void *) mi->_members + (i * BCH_MEMBER_V1_BYTES);
42 static struct bch_member members_v1_get(struct bch_sb_field_members_v1 *mi, int i)
44 struct bch_member ret, *p = members_v1_get_mut(mi, i);
45 memset(&ret, 0, sizeof(ret));
46 memcpy(&ret, p, min_t(size_t, BCH_MEMBER_V1_BYTES, sizeof(ret)));
50 struct bch_member bch2_sb_member_get(struct bch_sb *sb, int i)
52 struct bch_sb_field_members_v2 *mi2 = bch2_sb_field_get(sb, members_v2);
54 return members_v2_get(mi2, i);
55 struct bch_sb_field_members_v1 *mi1 = bch2_sb_field_get(sb, members_v1);
56 return members_v1_get(mi1, i);
59 static int sb_members_v2_resize_entries(struct bch_fs *c)
61 struct bch_sb_field_members_v2 *mi = bch2_sb_field_get(c->disk_sb.sb, members_v2);
63 if (le16_to_cpu(mi->member_bytes) < sizeof(struct bch_member)) {
64 unsigned u64s = DIV_ROUND_UP((sizeof(*mi) + sizeof(mi->_members[0]) *
65 c->disk_sb.sb->nr_devices), 8);
67 mi = bch2_sb_field_resize(&c->disk_sb, members_v2, u64s);
69 return -BCH_ERR_ENOSPC_sb_members_v2;
71 for (int i = c->disk_sb.sb->nr_devices - 1; i >= 0; --i) {
72 void *dst = (void *) mi->_members + (i * sizeof(struct bch_member));
73 memmove(dst, __bch2_members_v2_get_mut(mi, i), le16_to_cpu(mi->member_bytes));
74 memset(dst + le16_to_cpu(mi->member_bytes),
75 0, (sizeof(struct bch_member) - le16_to_cpu(mi->member_bytes)));
77 mi->member_bytes = cpu_to_le16(sizeof(struct bch_member));
82 int bch2_sb_members_v2_init(struct bch_fs *c)
84 struct bch_sb_field_members_v1 *mi1;
85 struct bch_sb_field_members_v2 *mi2;
87 if (!bch2_sb_field_get(c->disk_sb.sb, members_v2)) {
88 mi2 = bch2_sb_field_resize(&c->disk_sb, members_v2,
89 DIV_ROUND_UP(sizeof(*mi2) +
90 sizeof(struct bch_member) * c->sb.nr_devices,
92 mi1 = bch2_sb_field_get(c->disk_sb.sb, members_v1);
93 memcpy(&mi2->_members[0], &mi1->_members[0],
94 BCH_MEMBER_V1_BYTES * c->sb.nr_devices);
95 memset(&mi2->pad[0], 0, sizeof(mi2->pad));
96 mi2->member_bytes = cpu_to_le16(BCH_MEMBER_V1_BYTES);
99 return sb_members_v2_resize_entries(c);
102 int bch2_sb_members_cpy_v2_v1(struct bch_sb_handle *disk_sb)
104 struct bch_sb_field_members_v1 *mi1;
105 struct bch_sb_field_members_v2 *mi2;
107 mi1 = bch2_sb_field_resize(disk_sb, members_v1,
108 DIV_ROUND_UP(sizeof(*mi1) + BCH_MEMBER_V1_BYTES *
109 disk_sb->sb->nr_devices, sizeof(u64)));
111 return -BCH_ERR_ENOSPC_sb_members;
113 mi2 = bch2_sb_field_get(disk_sb->sb, members_v2);
115 for (unsigned i = 0; i < disk_sb->sb->nr_devices; i++)
116 memcpy(members_v1_get_mut(mi1, i), __bch2_members_v2_get_mut(mi2, i), BCH_MEMBER_V1_BYTES);
121 static int validate_member(struct printbuf *err,
126 if (le64_to_cpu(m.nbuckets) > LONG_MAX) {
127 prt_printf(err, "device %u: too many buckets (got %llu, max %lu)",
128 i, le64_to_cpu(m.nbuckets), LONG_MAX);
129 return -BCH_ERR_invalid_sb_members;
132 if (le64_to_cpu(m.nbuckets) -
133 le16_to_cpu(m.first_bucket) < BCH_MIN_NR_NBUCKETS) {
134 prt_printf(err, "device %u: not enough buckets (got %llu, max %u)",
135 i, le64_to_cpu(m.nbuckets), BCH_MIN_NR_NBUCKETS);
136 return -BCH_ERR_invalid_sb_members;
139 if (le16_to_cpu(m.bucket_size) <
140 le16_to_cpu(sb->block_size)) {
141 prt_printf(err, "device %u: bucket size %u smaller than block size %u",
142 i, le16_to_cpu(m.bucket_size), le16_to_cpu(sb->block_size));
143 return -BCH_ERR_invalid_sb_members;
146 if (le16_to_cpu(m.bucket_size) <
147 BCH_SB_BTREE_NODE_SIZE(sb)) {
148 prt_printf(err, "device %u: bucket size %u smaller than btree node size %llu",
149 i, le16_to_cpu(m.bucket_size), BCH_SB_BTREE_NODE_SIZE(sb));
150 return -BCH_ERR_invalid_sb_members;
156 static void member_to_text(struct printbuf *out,
158 struct bch_sb_field_disk_groups *gi,
162 unsigned data_have = bch2_sb_dev_has_data(sb, i);
163 u64 bucket_size = le16_to_cpu(m.bucket_size);
164 u64 device_size = le64_to_cpu(m.nbuckets) * bucket_size;
166 if (!bch2_member_exists(&m))
169 prt_printf(out, "Device:");
171 prt_printf(out, "%u", i);
174 printbuf_indent_add(out, 2);
176 prt_printf(out, "Label:");
178 if (BCH_MEMBER_GROUP(&m)) {
179 unsigned idx = BCH_MEMBER_GROUP(&m) - 1;
181 if (idx < disk_groups_nr(gi))
182 prt_printf(out, "%s (%u)",
183 gi->entries[idx].label, idx);
185 prt_printf(out, "(bad disk labels section)");
187 prt_printf(out, "(none)");
191 prt_printf(out, "UUID:");
193 pr_uuid(out, m.uuid.b);
196 prt_printf(out, "Size:");
198 prt_units_u64(out, device_size << 9);
201 for (unsigned i = 0; i < BCH_MEMBER_ERROR_NR; i++) {
202 prt_printf(out, "%s errors:", bch2_member_error_strs[i]);
204 prt_u64(out, le64_to_cpu(m.errors[i]));
208 for (unsigned i = 0; i < BCH_IOPS_NR; i++) {
209 prt_printf(out, "%s iops:", bch2_iops_measurements[i]);
211 prt_printf(out, "%u", le32_to_cpu(m.iops[i]));
215 prt_printf(out, "Bucket size:");
217 prt_units_u64(out, bucket_size << 9);
220 prt_printf(out, "First bucket:");
222 prt_printf(out, "%u", le16_to_cpu(m.first_bucket));
225 prt_printf(out, "Buckets:");
227 prt_printf(out, "%llu", le64_to_cpu(m.nbuckets));
230 prt_printf(out, "Last mount:");
233 bch2_prt_datetime(out, le64_to_cpu(m.last_mount));
235 prt_printf(out, "(never)");
238 prt_printf(out, "State:");
240 prt_printf(out, "%s",
241 BCH_MEMBER_STATE(&m) < BCH_MEMBER_STATE_NR
242 ? bch2_member_states[BCH_MEMBER_STATE(&m)]
246 prt_printf(out, "Data allowed:");
248 if (BCH_MEMBER_DATA_ALLOWED(&m))
249 prt_bitflags(out, bch2_data_types, BCH_MEMBER_DATA_ALLOWED(&m));
251 prt_printf(out, "(none)");
254 prt_printf(out, "Has data:");
257 prt_bitflags(out, bch2_data_types, data_have);
259 prt_printf(out, "(none)");
262 prt_printf(out, "Discard:");
264 prt_printf(out, "%llu", BCH_MEMBER_DISCARD(&m));
267 prt_printf(out, "Freespace initialized:");
269 prt_printf(out, "%llu", BCH_MEMBER_FREESPACE_INITIALIZED(&m));
272 printbuf_indent_sub(out, 2);
275 static int bch2_sb_members_v1_validate(struct bch_sb *sb,
276 struct bch_sb_field *f,
277 struct printbuf *err)
279 struct bch_sb_field_members_v1 *mi = field_to_type(f, members_v1);
282 if ((void *) members_v1_get_mut(mi, sb->nr_devices) > vstruct_end(&mi->field)) {
283 prt_printf(err, "too many devices for section size");
284 return -BCH_ERR_invalid_sb_members;
287 for (i = 0; i < sb->nr_devices; i++) {
288 struct bch_member m = members_v1_get(mi, i);
290 int ret = validate_member(err, m, sb, i);
298 static void bch2_sb_members_v1_to_text(struct printbuf *out, struct bch_sb *sb,
299 struct bch_sb_field *f)
301 struct bch_sb_field_members_v1 *mi = field_to_type(f, members_v1);
302 struct bch_sb_field_disk_groups *gi = bch2_sb_field_get(sb, disk_groups);
305 for (i = 0; i < sb->nr_devices; i++)
306 member_to_text(out, members_v1_get(mi, i), gi, sb, i);
309 const struct bch_sb_field_ops bch_sb_field_ops_members_v1 = {
310 .validate = bch2_sb_members_v1_validate,
311 .to_text = bch2_sb_members_v1_to_text,
314 static void bch2_sb_members_v2_to_text(struct printbuf *out, struct bch_sb *sb,
315 struct bch_sb_field *f)
317 struct bch_sb_field_members_v2 *mi = field_to_type(f, members_v2);
318 struct bch_sb_field_disk_groups *gi = bch2_sb_field_get(sb, disk_groups);
321 for (i = 0; i < sb->nr_devices; i++)
322 member_to_text(out, members_v2_get(mi, i), gi, sb, i);
325 static int bch2_sb_members_v2_validate(struct bch_sb *sb,
326 struct bch_sb_field *f,
327 struct printbuf *err)
329 struct bch_sb_field_members_v2 *mi = field_to_type(f, members_v2);
330 size_t mi_bytes = (void *) __bch2_members_v2_get_mut(mi, sb->nr_devices) -
333 if (mi_bytes > vstruct_bytes(&mi->field)) {
334 prt_printf(err, "section too small (%zu > %zu)",
335 mi_bytes, vstruct_bytes(&mi->field));
336 return -BCH_ERR_invalid_sb_members;
339 for (unsigned i = 0; i < sb->nr_devices; i++) {
340 int ret = validate_member(err, members_v2_get(mi, i), sb, i);
348 const struct bch_sb_field_ops bch_sb_field_ops_members_v2 = {
349 .validate = bch2_sb_members_v2_validate,
350 .to_text = bch2_sb_members_v2_to_text,
353 void bch2_sb_members_from_cpu(struct bch_fs *c)
355 struct bch_sb_field_members_v2 *mi = bch2_sb_field_get(c->disk_sb.sb, members_v2);
360 for_each_member_device_rcu(ca, c, i, NULL) {
361 struct bch_member *m = __bch2_members_v2_get_mut(mi, i);
363 for (e = 0; e < BCH_MEMBER_ERROR_NR; e++)
364 m->errors[e] = cpu_to_le64(atomic64_read(&ca->errors[e]));
369 void bch2_dev_io_errors_to_text(struct printbuf *out, struct bch_dev *ca)
371 struct bch_fs *c = ca->fs;
374 mutex_lock(&ca->fs->sb_lock);
375 m = bch2_sb_member_get(c->disk_sb.sb, ca->dev_idx);
376 mutex_unlock(&ca->fs->sb_lock);
378 printbuf_tabstop_push(out, 12);
380 prt_str(out, "IO errors since filesystem creation");
383 printbuf_indent_add(out, 2);
384 for (unsigned i = 0; i < BCH_MEMBER_ERROR_NR; i++) {
385 prt_printf(out, "%s:", bch2_member_error_strs[i]);
387 prt_u64(out, atomic64_read(&ca->errors[i]));
390 printbuf_indent_sub(out, 2);
392 prt_str(out, "IO errors since ");
393 bch2_pr_time_units(out, (ktime_get_real_seconds() - le64_to_cpu(m.errors_reset_time)) * NSEC_PER_SEC);
394 prt_str(out, " ago");
397 printbuf_indent_add(out, 2);
398 for (unsigned i = 0; i < BCH_MEMBER_ERROR_NR; i++) {
399 prt_printf(out, "%s:", bch2_member_error_strs[i]);
401 prt_u64(out, atomic64_read(&ca->errors[i]) - le64_to_cpu(m.errors_at_reset[i]));
404 printbuf_indent_sub(out, 2);
407 void bch2_dev_errors_reset(struct bch_dev *ca)
409 struct bch_fs *c = ca->fs;
410 struct bch_member *m;
412 mutex_lock(&c->sb_lock);
413 m = bch2_members_v2_get_mut(c->disk_sb.sb, ca->dev_idx);
414 for (unsigned i = 0; i < ARRAY_SIZE(m->errors_at_reset); i++)
415 m->errors_at_reset[i] = cpu_to_le64(atomic64_read(&ca->errors[i]));
416 m->errors_reset_time = ktime_get_real_seconds();
419 mutex_unlock(&c->sb_lock);