[thirdparty/linux.git] / fs / bcachefs / sb-members.c

// SPDX-License-Identifier: GPL-2.0

#include "bcachefs.h"
#include "disk_groups.h"
#include "opts.h"
#include "replicas.h"
#include "sb-members.h"
#include "super-io.h"

#define x(t, n, ...) [n] = #t,
static const char * const bch2_iops_measurements[] = {
	BCH_IOPS_MEASUREMENTS()
	NULL
};

char * const bch2_member_error_strs[] = {
	BCH_MEMBER_ERROR_TYPES()
	NULL
};
#undef x

/* Code for bch_sb_field_members_v1: */

static struct bch_member *members_v2_get_mut(struct bch_sb_field_members_v2 *mi, int i)
{
	return (void *) mi->_members + (i * le16_to_cpu(mi->member_bytes));
}

struct bch_member *bch2_members_v2_get_mut(struct bch_sb *sb, int i)
{
	return members_v2_get_mut(bch2_sb_field_get(sb, members_v2), i);
}

static struct bch_member members_v2_get(struct bch_sb_field_members_v2 *mi, int i)
{
	struct bch_member ret, *p = members_v2_get_mut(mi, i);
	memset(&ret, 0, sizeof(ret));
	memcpy(&ret, p, min_t(size_t, le16_to_cpu(mi->member_bytes), sizeof(ret)));
	return ret;
}

static struct bch_member *members_v1_get_mut(struct bch_sb_field_members_v1 *mi, int i)
{
	return (void *) mi->_members + (i * BCH_MEMBER_V1_BYTES);
}

static struct bch_member members_v1_get(struct bch_sb_field_members_v1 *mi, int i)
{
	struct bch_member ret, *p = members_v1_get_mut(mi, i);
	memset(&ret, 0, sizeof(ret));
	memcpy(&ret, p, min_t(size_t, BCH_MEMBER_V1_BYTES, sizeof(ret)));
	return ret;
}

struct bch_member bch2_sb_member_get(struct bch_sb *sb, int i)
{
	struct bch_sb_field_members_v2 *mi2 = bch2_sb_field_get(sb, members_v2);
	if (mi2)
		return members_v2_get(mi2, i);
	struct bch_sb_field_members_v1 *mi1 = bch2_sb_field_get(sb, members_v1);
	return members_v1_get(mi1, i);
}

static int sb_members_v2_resize_entries(struct bch_fs *c)
{
	struct bch_sb_field_members_v2 *mi = bch2_sb_field_get(c->disk_sb.sb, members_v2);

	if (le16_to_cpu(mi->member_bytes) < sizeof(struct bch_member)) {
		unsigned u64s = DIV_ROUND_UP((sizeof(*mi) + sizeof(mi->_members[0]) *
					      c->disk_sb.sb->nr_devices), 8);

		mi = bch2_sb_field_resize(&c->disk_sb, members_v2, u64s);
		if (!mi)
			return -BCH_ERR_ENOSPC_sb_members_v2;

		for (int i = c->disk_sb.sb->nr_devices - 1; i >= 0; --i) {
			void *dst = (void *) mi->_members + (i * sizeof(struct bch_member));
			memmove(dst, members_v2_get_mut(mi, i), le16_to_cpu(mi->member_bytes));
			memset(dst + le16_to_cpu(mi->member_bytes),
			       0, (sizeof(struct bch_member) - le16_to_cpu(mi->member_bytes)));
		}
		mi->member_bytes = cpu_to_le16(sizeof(struct bch_member));
	}
	return 0;
}

int bch2_sb_members_v2_init(struct bch_fs *c)
{
	struct bch_sb_field_members_v1 *mi1;
	struct bch_sb_field_members_v2 *mi2;

	if (!bch2_sb_field_get(c->disk_sb.sb, members_v2)) {
		mi2 = bch2_sb_field_resize(&c->disk_sb, members_v2,
				DIV_ROUND_UP(sizeof(*mi2) +
					     sizeof(struct bch_member) * c->sb.nr_devices,
					     sizeof(u64)));
		mi1 = bch2_sb_field_get(c->disk_sb.sb, members_v1);
		memcpy(&mi2->_members[0], &mi1->_members[0],
		       BCH_MEMBER_V1_BYTES * c->sb.nr_devices);
		memset(&mi2->pad[0], 0, sizeof(mi2->pad));
		mi2->member_bytes = cpu_to_le16(BCH_MEMBER_V1_BYTES);
	}

	return sb_members_v2_resize_entries(c);
}

int bch2_sb_members_cpy_v2_v1(struct bch_sb_handle *disk_sb)
{
	struct bch_sb_field_members_v1 *mi1;
	struct bch_sb_field_members_v2 *mi2;

	mi1 = bch2_sb_field_resize(disk_sb, members_v1,
			DIV_ROUND_UP(sizeof(*mi1) + BCH_MEMBER_V1_BYTES *
				     disk_sb->sb->nr_devices, sizeof(u64)));
	if (!mi1)
		return -BCH_ERR_ENOSPC_sb_members;

	mi2 = bch2_sb_field_get(disk_sb->sb, members_v2);

	for (unsigned i = 0; i < disk_sb->sb->nr_devices; i++)
		memcpy(members_v1_get_mut(mi1, i), members_v2_get_mut(mi2, i), BCH_MEMBER_V1_BYTES);

	return 0;
}

static int validate_member(struct printbuf *err,
			   struct bch_member m,
			   struct bch_sb *sb,
			   int i)
{
	if (le64_to_cpu(m.nbuckets) > LONG_MAX) {
		prt_printf(err, "device %u: too many buckets (got %llu, max %lu)",
			   i, le64_to_cpu(m.nbuckets), LONG_MAX);
		return -BCH_ERR_invalid_sb_members;
	}

	if (le64_to_cpu(m.nbuckets) -
	    le16_to_cpu(m.first_bucket) < BCH_MIN_NR_NBUCKETS) {
		prt_printf(err, "device %u: not enough buckets (got %llu, max %u)",
			   i, le64_to_cpu(m.nbuckets), BCH_MIN_NR_NBUCKETS);
		return -BCH_ERR_invalid_sb_members;
	}

	if (le16_to_cpu(m.bucket_size) <
	    le16_to_cpu(sb->block_size)) {
		prt_printf(err, "device %u: bucket size %u smaller than block size %u",
			   i, le16_to_cpu(m.bucket_size), le16_to_cpu(sb->block_size));
		return -BCH_ERR_invalid_sb_members;
	}

	if (le16_to_cpu(m.bucket_size) <
	    BCH_SB_BTREE_NODE_SIZE(sb)) {
		prt_printf(err, "device %u: bucket size %u smaller than btree node size %llu",
			   i, le16_to_cpu(m.bucket_size), BCH_SB_BTREE_NODE_SIZE(sb));
		return -BCH_ERR_invalid_sb_members;
	}

	return 0;
}

static void member_to_text(struct printbuf *out,
			   struct bch_member m,
			   struct bch_sb_field_disk_groups *gi,
			   struct bch_sb *sb,
			   int i)
{
	unsigned data_have = bch2_sb_dev_has_data(sb, i);
	u64 bucket_size = le16_to_cpu(m.bucket_size);
	u64 device_size = le64_to_cpu(m.nbuckets) * bucket_size;

	if (!bch2_member_exists(&m))
		return;

	prt_printf(out, "Device:");
	prt_tab(out);
	prt_printf(out, "%u", i);
	prt_newline(out);

	printbuf_indent_add(out, 2);

	prt_printf(out, "Label:");
	prt_tab(out);
	if (BCH_MEMBER_GROUP(&m)) {
		unsigned idx = BCH_MEMBER_GROUP(&m) - 1;

		if (idx < disk_groups_nr(gi))
			prt_printf(out, "%s (%u)",
				   gi->entries[idx].label, idx);
		else
			prt_printf(out, "(bad disk labels section)");
	} else {
		prt_printf(out, "(none)");
	}
	prt_newline(out);

	prt_printf(out, "UUID:");
	prt_tab(out);
	pr_uuid(out, m.uuid.b);
	prt_newline(out);

	prt_printf(out, "Size:");
	prt_tab(out);
	prt_units_u64(out, device_size << 9);
	prt_newline(out);

	for (unsigned i = 0; i < BCH_MEMBER_ERROR_NR; i++) {
		prt_printf(out, "%s errors:", bch2_member_error_strs[i]);
		prt_tab(out);
		prt_u64(out, le64_to_cpu(m.errors[i]));
		prt_newline(out);
	}

	for (unsigned i = 0; i < BCH_IOPS_NR; i++) {
		prt_printf(out, "%s iops:", bch2_iops_measurements[i]);
		prt_tab(out);
		prt_printf(out, "%u", le32_to_cpu(m.iops[i]));
		prt_newline(out);
	}

	prt_printf(out, "Bucket size:");
	prt_tab(out);
	prt_units_u64(out, bucket_size << 9);
	prt_newline(out);

	prt_printf(out, "First bucket:");
	prt_tab(out);
	prt_printf(out, "%u", le16_to_cpu(m.first_bucket));
	prt_newline(out);

	prt_printf(out, "Buckets:");
	prt_tab(out);
	prt_printf(out, "%llu", le64_to_cpu(m.nbuckets));
	prt_newline(out);

	prt_printf(out, "Last mount:");
	prt_tab(out);
	if (m.last_mount)
		bch2_prt_datetime(out, le64_to_cpu(m.last_mount));
	else
		prt_printf(out, "(never)");
	prt_newline(out);

	prt_printf(out, "State:");
	prt_tab(out);
	prt_printf(out, "%s",
		   BCH_MEMBER_STATE(&m) < BCH_MEMBER_STATE_NR
		   ? bch2_member_states[BCH_MEMBER_STATE(&m)]
		   : "unknown");
	prt_newline(out);

	prt_printf(out, "Data allowed:");
	prt_tab(out);
	if (BCH_MEMBER_DATA_ALLOWED(&m))
		prt_bitflags(out, bch2_data_types, BCH_MEMBER_DATA_ALLOWED(&m));
	else
		prt_printf(out, "(none)");
	prt_newline(out);

	prt_printf(out, "Has data:");
	prt_tab(out);
	if (data_have)
		prt_bitflags(out, bch2_data_types, data_have);
	else
		prt_printf(out, "(none)");
	prt_newline(out);

	prt_printf(out, "Discard:");
	prt_tab(out);
	prt_printf(out, "%llu", BCH_MEMBER_DISCARD(&m));
	prt_newline(out);

	prt_printf(out, "Freespace initialized:");
	prt_tab(out);
	prt_printf(out, "%llu", BCH_MEMBER_FREESPACE_INITIALIZED(&m));
	prt_newline(out);

	printbuf_indent_sub(out, 2);
}

static int bch2_sb_members_v1_validate(struct bch_sb *sb,
				    struct bch_sb_field *f,
				    struct printbuf *err)
{
	struct bch_sb_field_members_v1 *mi = field_to_type(f, members_v1);
	unsigned i;

	if ((void *) members_v1_get_mut(mi, sb->nr_devices) > vstruct_end(&mi->field)) {
		prt_printf(err, "too many devices for section size");
		return -BCH_ERR_invalid_sb_members;
	}

	for (i = 0; i < sb->nr_devices; i++) {
		struct bch_member m = members_v1_get(mi, i);

		int ret = validate_member(err, m, sb, i);
		if (ret)
			return ret;
	}

	return 0;
}

static void bch2_sb_members_v1_to_text(struct printbuf *out, struct bch_sb *sb,
				       struct bch_sb_field *f)
{
	struct bch_sb_field_members_v1 *mi = field_to_type(f, members_v1);
	struct bch_sb_field_disk_groups *gi = bch2_sb_field_get(sb, disk_groups);
	unsigned i;

	for (i = 0; i < sb->nr_devices; i++)
		member_to_text(out, members_v1_get(mi, i), gi, sb, i);
}

const struct bch_sb_field_ops bch_sb_field_ops_members_v1 = {
	.validate	= bch2_sb_members_v1_validate,
	.to_text	= bch2_sb_members_v1_to_text,
};

static void bch2_sb_members_v2_to_text(struct printbuf *out, struct bch_sb *sb,
				       struct bch_sb_field *f)
{
	struct bch_sb_field_members_v2 *mi = field_to_type(f, members_v2);
	struct bch_sb_field_disk_groups *gi = bch2_sb_field_get(sb, disk_groups);
	unsigned i;

	for (i = 0; i < sb->nr_devices; i++)
		member_to_text(out, members_v2_get(mi, i), gi, sb, i);
}

static int bch2_sb_members_v2_validate(struct bch_sb *sb,
				       struct bch_sb_field *f,
				       struct printbuf *err)
{
	struct bch_sb_field_members_v2 *mi = field_to_type(f, members_v2);
	size_t mi_bytes = (void *) members_v2_get_mut(mi, sb->nr_devices) -
		(void *) mi;

	if (mi_bytes > vstruct_bytes(&mi->field)) {
		prt_printf(err, "section too small (%zu > %zu)",
			   mi_bytes, vstruct_bytes(&mi->field));
		return -BCH_ERR_invalid_sb_members;
	}

	for (unsigned i = 0; i < sb->nr_devices; i++) {
		int ret = validate_member(err, members_v2_get(mi, i), sb, i);
		if (ret)
			return ret;
	}

	return 0;
}

const struct bch_sb_field_ops bch_sb_field_ops_members_v2 = {
	.validate	= bch2_sb_members_v2_validate,
	.to_text	= bch2_sb_members_v2_to_text,
};

void bch2_sb_members_from_cpu(struct bch_fs *c)
{
	struct bch_sb_field_members_v2 *mi = bch2_sb_field_get(c->disk_sb.sb, members_v2);
	struct bch_dev *ca;
	unsigned i, e;

	rcu_read_lock();
	for_each_member_device_rcu(ca, c, i, NULL) {
		struct bch_member *m = members_v2_get_mut(mi, i);

		for (e = 0; e < BCH_MEMBER_ERROR_NR; e++)
			m->errors[e] = cpu_to_le64(atomic64_read(&ca->errors[e]));
	}
	rcu_read_unlock();
}

void bch2_dev_io_errors_to_text(struct printbuf *out, struct bch_dev *ca)
{
	struct bch_fs *c = ca->fs;
	struct bch_member m;

	mutex_lock(&ca->fs->sb_lock);
	m = bch2_sb_member_get(c->disk_sb.sb, ca->dev_idx);
	mutex_unlock(&ca->fs->sb_lock);

	printbuf_tabstop_push(out, 12);

	prt_str(out, "IO errors since filesystem creation");
	prt_newline(out);

	printbuf_indent_add(out, 2);
	for (unsigned i = 0; i < BCH_MEMBER_ERROR_NR; i++) {
		prt_printf(out, "%s:", bch2_member_error_strs[i]);
		prt_tab(out);
		prt_u64(out, atomic64_read(&ca->errors[i]));
		prt_newline(out);
	}
	printbuf_indent_sub(out, 2);

	prt_str(out, "IO errors since ");
	bch2_pr_time_units(out, (ktime_get_real_seconds() - le64_to_cpu(m.errors_reset_time)) * NSEC_PER_SEC);
	prt_str(out, " ago");
	prt_newline(out);

	printbuf_indent_add(out, 2);
	for (unsigned i = 0; i < BCH_MEMBER_ERROR_NR; i++) {
		prt_printf(out, "%s:", bch2_member_error_strs[i]);
		prt_tab(out);
		prt_u64(out, atomic64_read(&ca->errors[i]) - le64_to_cpu(m.errors_at_reset[i]));
		prt_newline(out);
	}
	printbuf_indent_sub(out, 2);
}

void bch2_dev_errors_reset(struct bch_dev *ca)
{
	struct bch_fs *c = ca->fs;
	struct bch_member *m;

	mutex_lock(&c->sb_lock);
	m = bch2_members_v2_get_mut(c->disk_sb.sb, ca->dev_idx);
	for (unsigned i = 0; i < ARRAY_SIZE(m->errors_at_reset); i++)
		m->errors_at_reset[i] = cpu_to_le64(atomic64_read(&ca->errors[i]));
	m->errors_reset_time = ktime_get_real_seconds();

	bch2_write_super(c);
	mutex_unlock(&c->sb_lock);
}
Commit	Line	Data
fb8e5b4c KO	1	// SPDX-License-Identifier: GPL-2.0
	2
	3	#include "bcachefs.h"
	4	#include "disk_groups.h"
40f7914e	5	#include "opts.h"
fb8e5b4c KO	6	#include "replicas.h"
	7	#include "sb-members.h"
	8	#include "super-io.h"
	9
94119eeb KO	10	#define x(t, n, ...) [n] = #t,
	11	static const char * const bch2_iops_measurements[] = {
	12	BCH_IOPS_MEASUREMENTS()
	13	NULL
	14	};
	15
	16	char * const bch2_member_error_strs[] = {
	17	BCH_MEMBER_ERROR_TYPES()
	18	NULL
	19	};
	20	#undef x
	21
9af26120	22	/* Code for bch_sb_field_members_v1: */
3f7b9713 HS	23
	24	static struct bch_member members_v2_get_mut(struct bch_sb_field_members_v2 mi, int i)
	25	{
	26	return (void ) mi->_members + (i le16_to_cpu(mi->member_bytes));
	27	}
	28
	29	struct bch_member bch2_members_v2_get_mut(struct bch_sb sb, int i)
	30	{
4637429e	31	return members_v2_get_mut(bch2_sb_field_get(sb, members_v2), i);
3f7b9713 HS	32	}
	33
	34	static struct bch_member members_v2_get(struct bch_sb_field_members_v2 *mi, int i)
	35	{
	36	struct bch_member ret, *p = members_v2_get_mut(mi, i);
	37	memset(&ret, 0, sizeof(ret));
	38	memcpy(&ret, p, min_t(size_t, le16_to_cpu(mi->member_bytes), sizeof(ret)));
	39	return ret;
	40	}
	41
9af26120	42	static struct bch_member members_v1_get_mut(struct bch_sb_field_members_v1 mi, int i)
1241df58	43	{
3f7b9713	44	return (void ) mi->_members + (i BCH_MEMBER_V1_BYTES);
1241df58 HS	45	}
1241df58 HS	46
9af26120	47	static struct bch_member members_v1_get(struct bch_sb_field_members_v1 *mi, int i)
1241df58 HS	48	{
	49	struct bch_member ret, *p = members_v1_get_mut(mi, i);
	50	memset(&ret, 0, sizeof(ret));
5c1ab40e KO	51	memcpy(&ret, p, min_t(size_t, BCH_MEMBER_V1_BYTES, sizeof(ret)));
5c1ab40e KO	52	return ret;
1241df58 HS	53	}
	54
	55	struct bch_member bch2_sb_member_get(struct bch_sb *sb, int i)
	56	{
4637429e	57	struct bch_sb_field_members_v2 *mi2 = bch2_sb_field_get(sb, members_v2);
3f7b9713 HS	58	if (mi2)
3f7b9713 HS	59	return members_v2_get(mi2, i);
4637429e	60	struct bch_sb_field_members_v1 *mi1 = bch2_sb_field_get(sb, members_v1);
1241df58 HS	61	return members_v1_get(mi1, i);
1241df58 HS	62	}
fb8e5b4c	63
3f7b9713 HS	64	static int sb_members_v2_resize_entries(struct bch_fs *c)
3f7b9713 HS	65	{
4637429e	66	struct bch_sb_field_members_v2 *mi = bch2_sb_field_get(c->disk_sb.sb, members_v2);
3f7b9713 HS	67
	68	if (le16_to_cpu(mi->member_bytes) < sizeof(struct bch_member)) {
	69	unsigned u64s = DIV_ROUND_UP((sizeof(mi) + sizeof(mi->_members[0])
	70	c->disk_sb.sb->nr_devices), 8);
	71
4637429e	72	mi = bch2_sb_field_resize(&c->disk_sb, members_v2, u64s);
3f7b9713 HS	73	if (!mi)
	74	return -BCH_ERR_ENOSPC_sb_members_v2;
	75
	76	for (int i = c->disk_sb.sb->nr_devices - 1; i >= 0; --i) {
	77	void dst = (void ) mi->_members + (i * sizeof(struct bch_member));
	78	memmove(dst, members_v2_get_mut(mi, i), le16_to_cpu(mi->member_bytes));
	79	memset(dst + le16_to_cpu(mi->member_bytes),
	80	0, (sizeof(struct bch_member) - le16_to_cpu(mi->member_bytes)));
	81	}
	82	mi->member_bytes = cpu_to_le16(sizeof(struct bch_member));
	83	}
	84	return 0;
	85	}
	86
f5d26fa3	87	int bch2_sb_members_v2_init(struct bch_fs *c)
3f7b9713	88	{
9af26120	89	struct bch_sb_field_members_v1 *mi1;
3f7b9713 HS	90	struct bch_sb_field_members_v2 *mi2;
3f7b9713 HS	91
4637429e KO	92	if (!bch2_sb_field_get(c->disk_sb.sb, members_v2)) {
4637429e KO	93	mi2 = bch2_sb_field_resize(&c->disk_sb, members_v2,
3f7b9713 HS	94	DIV_ROUND_UP(sizeof(*mi2) +
	95	sizeof(struct bch_member) * c->sb.nr_devices,
	96	sizeof(u64)));
4637429e	97	mi1 = bch2_sb_field_get(c->disk_sb.sb, members_v1);
3f7b9713 HS	98	memcpy(&mi2->_members[0], &mi1->_members[0],
	99	BCH_MEMBER_V1_BYTES * c->sb.nr_devices);
	100	memset(&mi2->pad[0], 0, sizeof(mi2->pad));
	101	mi2->member_bytes = cpu_to_le16(BCH_MEMBER_V1_BYTES);
	102	}
	103
	104	return sb_members_v2_resize_entries(c);
	105	}
	106
94119eeb	107	int bch2_sb_members_cpy_v2_v1(struct bch_sb_handle *disk_sb)
3f7b9713	108	{
9af26120	109	struct bch_sb_field_members_v1 *mi1;
3f7b9713 HS	110	struct bch_sb_field_members_v2 *mi2;
3f7b9713 HS	111
4637429e	112	mi1 = bch2_sb_field_resize(disk_sb, members_v1,
3f7b9713 HS	113	DIV_ROUND_UP(sizeof(mi1) + BCH_MEMBER_V1_BYTES
	114	disk_sb->sb->nr_devices, sizeof(u64)));
	115	if (!mi1)
	116	return -BCH_ERR_ENOSPC_sb_members;
	117
4637429e	118	mi2 = bch2_sb_field_get(disk_sb->sb, members_v2);
3f7b9713 HS	119
	120	for (unsigned i = 0; i < disk_sb->sb->nr_devices; i++)
	121	memcpy(members_v1_get_mut(mi1, i), members_v2_get_mut(mi2, i), BCH_MEMBER_V1_BYTES);
	122
	123	return 0;
	124	}
	125
	126	static int validate_member(struct printbuf *err,
	127	struct bch_member m,
	128	struct bch_sb *sb,
	129	int i)
	130	{
	131	if (le64_to_cpu(m.nbuckets) > LONG_MAX) {
	132	prt_printf(err, "device %u: too many buckets (got %llu, max %lu)",
	133	i, le64_to_cpu(m.nbuckets), LONG_MAX);
	134	return -BCH_ERR_invalid_sb_members;
	135	}
	136
	137	if (le64_to_cpu(m.nbuckets) -
	138	le16_to_cpu(m.first_bucket) < BCH_MIN_NR_NBUCKETS) {
	139	prt_printf(err, "device %u: not enough buckets (got %llu, max %u)",
	140	i, le64_to_cpu(m.nbuckets), BCH_MIN_NR_NBUCKETS);
	141	return -BCH_ERR_invalid_sb_members;
	142	}
	143
	144	if (le16_to_cpu(m.bucket_size) <
	145	le16_to_cpu(sb->block_size)) {
	146	prt_printf(err, "device %u: bucket size %u smaller than block size %u",
	147	i, le16_to_cpu(m.bucket_size), le16_to_cpu(sb->block_size));
	148	return -BCH_ERR_invalid_sb_members;
	149	}
	150
	151	if (le16_to_cpu(m.bucket_size) <
	152	BCH_SB_BTREE_NODE_SIZE(sb)) {
	153	prt_printf(err, "device %u: bucket size %u smaller than btree node size %llu",
	154	i, le16_to_cpu(m.bucket_size), BCH_SB_BTREE_NODE_SIZE(sb));
	155	return -BCH_ERR_invalid_sb_members;
	156	}
	157
	158	return 0;
	159	}
	160
	161	static void member_to_text(struct printbuf *out,
	162	struct bch_member m,
	163	struct bch_sb_field_disk_groups *gi,
	164	struct bch_sb *sb,
	165	int i)
	166	{
	167	unsigned data_have = bch2_sb_dev_has_data(sb, i);
	168	u64 bucket_size = le16_to_cpu(m.bucket_size);
	169	u64 device_size = le64_to_cpu(m.nbuckets) * bucket_size;
	170
dc7a15fb KO	171	if (!bch2_member_exists(&m))
	172	return;
	173
3f7b9713 HS	174	prt_printf(out, "Device:");
	175	prt_tab(out);
	176	prt_printf(out, "%u", i);
	177	prt_newline(out);
	178
	179	printbuf_indent_add(out, 2);
	180
94119eeb KO	181	prt_printf(out, "Label:");
	182	prt_tab(out);
	183	if (BCH_MEMBER_GROUP(&m)) {
	184	unsigned idx = BCH_MEMBER_GROUP(&m) - 1;
	185
	186	if (idx < disk_groups_nr(gi))
	187	prt_printf(out, "%s (%u)",
	188	gi->entries[idx].label, idx);
	189	else
	190	prt_printf(out, "(bad disk labels section)");
	191	} else {
	192	prt_printf(out, "(none)");
	193	}
	194	prt_newline(out);
	195
3f7b9713 HS	196	prt_printf(out, "UUID:");
	197	prt_tab(out);
	198	pr_uuid(out, m.uuid.b);
	199	prt_newline(out);
	200
	201	prt_printf(out, "Size:");
	202	prt_tab(out);
	203	prt_units_u64(out, device_size << 9);
	204	prt_newline(out);
	205
94119eeb KO	206	for (unsigned i = 0; i < BCH_MEMBER_ERROR_NR; i++) {
	207	prt_printf(out, "%s errors:", bch2_member_error_strs[i]);
	208	prt_tab(out);
	209	prt_u64(out, le64_to_cpu(m.errors[i]));
	210	prt_newline(out);
	211	}
	212
40f7914e HS	213	for (unsigned i = 0; i < BCH_IOPS_NR; i++) {
	214	prt_printf(out, "%s iops:", bch2_iops_measurements[i]);
	215	prt_tab(out);
	216	prt_printf(out, "%u", le32_to_cpu(m.iops[i]));
	217	prt_newline(out);
	218	}
	219
3f7b9713 HS	220	prt_printf(out, "Bucket size:");
	221	prt_tab(out);
	222	prt_units_u64(out, bucket_size << 9);
	223	prt_newline(out);
	224
	225	prt_printf(out, "First bucket:");
	226	prt_tab(out);
	227	prt_printf(out, "%u", le16_to_cpu(m.first_bucket));
	228	prt_newline(out);
	229
	230	prt_printf(out, "Buckets:");
	231	prt_tab(out);
	232	prt_printf(out, "%llu", le64_to_cpu(m.nbuckets));
	233	prt_newline(out);
	234
	235	prt_printf(out, "Last mount:");
	236	prt_tab(out);
	237	if (m.last_mount)
59154f2c	238	bch2_prt_datetime(out, le64_to_cpu(m.last_mount));
3f7b9713 HS	239	else
	240	prt_printf(out, "(never)");
	241	prt_newline(out);
	242
	243	prt_printf(out, "State:");
	244	prt_tab(out);
	245	prt_printf(out, "%s",
	246	BCH_MEMBER_STATE(&m) < BCH_MEMBER_STATE_NR
	247	? bch2_member_states[BCH_MEMBER_STATE(&m)]
	248	: "unknown");
	249	prt_newline(out);
	250
3f7b9713 HS	251	prt_printf(out, "Data allowed:");
	252	prt_tab(out);
	253	if (BCH_MEMBER_DATA_ALLOWED(&m))
	254	prt_bitflags(out, bch2_data_types, BCH_MEMBER_DATA_ALLOWED(&m));
	255	else
	256	prt_printf(out, "(none)");
	257	prt_newline(out);
	258
	259	prt_printf(out, "Has data:");
	260	prt_tab(out);
	261	if (data_have)
	262	prt_bitflags(out, bch2_data_types, data_have);
	263	else
	264	prt_printf(out, "(none)");
	265	prt_newline(out);
	266
	267	prt_printf(out, "Discard:");
	268	prt_tab(out);
	269	prt_printf(out, "%llu", BCH_MEMBER_DISCARD(&m));
	270	prt_newline(out);
	271
	272	prt_printf(out, "Freespace initialized:");
	273	prt_tab(out);
	274	prt_printf(out, "%llu", BCH_MEMBER_FREESPACE_INITIALIZED(&m));
	275	prt_newline(out);
	276
	277	printbuf_indent_sub(out, 2);
	278	}
	279
	280	static int bch2_sb_members_v1_validate(struct bch_sb *sb,
fb8e5b4c KO	281	struct bch_sb_field *f,
	282	struct printbuf *err)
	283	{
9af26120	284	struct bch_sb_field_members_v1 *mi = field_to_type(f, members_v1);
fb8e5b4c KO	285	unsigned i;
fb8e5b4c KO	286
5c1ab40e	287	if ((void *) members_v1_get_mut(mi, sb->nr_devices) > vstruct_end(&mi->field)) {
fb8e5b4c KO	288	prt_printf(err, "too many devices for section size");
	289	return -BCH_ERR_invalid_sb_members;
	290	}
	291
	292	for (i = 0; i < sb->nr_devices; i++) {
3f7b9713	293	struct bch_member m = members_v1_get(mi, i);
fb8e5b4c	294
3f7b9713 HS	295	int ret = validate_member(err, m, sb, i);
	296	if (ret)
	297	return ret;
fb8e5b4c KO	298	}
	299
	300	return 0;
	301	}
	302
3f7b9713 HS	303	static void bch2_sb_members_v1_to_text(struct printbuf out, struct bch_sb sb,
3f7b9713 HS	304	struct bch_sb_field *f)
fb8e5b4c	305	{
9af26120	306	struct bch_sb_field_members_v1 *mi = field_to_type(f, members_v1);
4637429e	307	struct bch_sb_field_disk_groups *gi = bch2_sb_field_get(sb, disk_groups);
fb8e5b4c KO	308	unsigned i;
fb8e5b4c KO	309
dc7a15fb KO	310	for (i = 0; i < sb->nr_devices; i++)
dc7a15fb KO	311	member_to_text(out, members_v1_get(mi, i), gi, sb, i);
3f7b9713	312	}
fb8e5b4c	313
9af26120	314	const struct bch_sb_field_ops bch_sb_field_ops_members_v1 = {
3f7b9713 HS	315	.validate = bch2_sb_members_v1_validate,
	316	.to_text = bch2_sb_members_v1_to_text,
	317	};
fb8e5b4c	318
3f7b9713 HS	319	static void bch2_sb_members_v2_to_text(struct printbuf out, struct bch_sb sb,
	320	struct bch_sb_field *f)
	321	{
	322	struct bch_sb_field_members_v2 *mi = field_to_type(f, members_v2);
4637429e	323	struct bch_sb_field_disk_groups *gi = bch2_sb_field_get(sb, disk_groups);
3f7b9713	324	unsigned i;
fb8e5b4c	325
dc7a15fb KO	326	for (i = 0; i < sb->nr_devices; i++)
dc7a15fb KO	327	member_to_text(out, members_v2_get(mi, i), gi, sb, i);
3f7b9713 HS	328	}
	329
	330	static int bch2_sb_members_v2_validate(struct bch_sb *sb,
	331	struct bch_sb_field *f,
	332	struct printbuf *err)
	333	{
	334	struct bch_sb_field_members_v2 *mi = field_to_type(f, members_v2);
	335	size_t mi_bytes = (void *) members_v2_get_mut(mi, sb->nr_devices) -
	336	(void *) mi;
fb8e5b4c	337
3f7b9713 HS	338	if (mi_bytes > vstruct_bytes(&mi->field)) {
	339	prt_printf(err, "section too small (%zu > %zu)",
	340	mi_bytes, vstruct_bytes(&mi->field));
	341	return -BCH_ERR_invalid_sb_members;
	342	}
fb8e5b4c	343
3f7b9713 HS	344	for (unsigned i = 0; i < sb->nr_devices; i++) {
	345	int ret = validate_member(err, members_v2_get(mi, i), sb, i);
	346	if (ret)
	347	return ret;
fb8e5b4c	348	}
3f7b9713 HS	349
3f7b9713 HS	350	return 0;
fb8e5b4c KO	351	}
fb8e5b4c KO	352
3f7b9713 HS	353	const struct bch_sb_field_ops bch_sb_field_ops_members_v2 = {
	354	.validate = bch2_sb_members_v2_validate,
	355	.to_text = bch2_sb_members_v2_to_text,
fb8e5b4c	356	};
94119eeb KO	357
	358	void bch2_sb_members_from_cpu(struct bch_fs *c)
	359	{
	360	struct bch_sb_field_members_v2 *mi = bch2_sb_field_get(c->disk_sb.sb, members_v2);
	361	struct bch_dev *ca;
	362	unsigned i, e;
	363
	364	rcu_read_lock();
	365	for_each_member_device_rcu(ca, c, i, NULL) {
	366	struct bch_member *m = members_v2_get_mut(mi, i);
	367
	368	for (e = 0; e < BCH_MEMBER_ERROR_NR; e++)
	369	m->errors[e] = cpu_to_le64(atomic64_read(&ca->errors[e]));
	370	}
	371	rcu_read_unlock();
	372	}
	373
	374	void bch2_dev_io_errors_to_text(struct printbuf out, struct bch_dev ca)
	375	{
	376	struct bch_fs *c = ca->fs;
	377	struct bch_member m;
	378
	379	mutex_lock(&ca->fs->sb_lock);
	380	m = bch2_sb_member_get(c->disk_sb.sb, ca->dev_idx);
	381	mutex_unlock(&ca->fs->sb_lock);
	382
	383	printbuf_tabstop_push(out, 12);
	384
	385	prt_str(out, "IO errors since filesystem creation");
	386	prt_newline(out);
	387
	388	printbuf_indent_add(out, 2);
	389	for (unsigned i = 0; i < BCH_MEMBER_ERROR_NR; i++) {
	390	prt_printf(out, "%s:", bch2_member_error_strs[i]);
	391	prt_tab(out);
	392	prt_u64(out, atomic64_read(&ca->errors[i]));
	393	prt_newline(out);
	394	}
	395	printbuf_indent_sub(out, 2);
	396
	397	prt_str(out, "IO errors since ");
	398	bch2_pr_time_units(out, (ktime_get_real_seconds() - le64_to_cpu(m.errors_reset_time)) * NSEC_PER_SEC);
	399	prt_str(out, " ago");
	400	prt_newline(out);
	401
	402	printbuf_indent_add(out, 2);
	403	for (unsigned i = 0; i < BCH_MEMBER_ERROR_NR; i++) {
	404	prt_printf(out, "%s:", bch2_member_error_strs[i]);
	405	prt_tab(out);
	406	prt_u64(out, atomic64_read(&ca->errors[i]) - le64_to_cpu(m.errors_at_reset[i]));
	407	prt_newline(out);
	408	}
	409	printbuf_indent_sub(out, 2);
	410	}
	411
	412	void bch2_dev_errors_reset(struct bch_dev *ca)
	413	{
	414	struct bch_fs *c = ca->fs;
	415	struct bch_member *m;
	416
	417	mutex_lock(&c->sb_lock);
	418	m = bch2_members_v2_get_mut(c->disk_sb.sb, ca->dev_idx);
	419	for (unsigned i = 0; i < ARRAY_SIZE(m->errors_at_reset); i++)
	420	m->errors_at_reset[i] = cpu_to_le64(atomic64_read(&ca->errors[i]));
421	m->errors_reset_time = ktime_get_real_seconds();
422
423	bch2_write_super(c);
424	mutex_unlock(&c->sb_lock);
425	}