diff options
Diffstat (limited to 'libbcachefs/replicas.c')
| -rw-r--r-- | libbcachefs/replicas.c | 85 |
1 files changed, 72 insertions, 13 deletions
diff --git a/libbcachefs/replicas.c b/libbcachefs/replicas.c index 96994b7a..6c1d42f1 100644 --- a/libbcachefs/replicas.c +++ b/libbcachefs/replicas.c @@ -36,6 +36,22 @@ static void bch2_cpu_replicas_sort(struct bch_replicas_cpu *r) eytzinger0_sort(r->entries, r->nr, r->entry_size, memcmp, NULL); } +void bch2_replicas_entry_v0_to_text(struct printbuf *out, + struct bch_replicas_entry_v0 *e) +{ + unsigned i; + + if (e->data_type < BCH_DATA_NR) + pr_buf(out, "%s", bch2_data_types[e->data_type]); + else + pr_buf(out, "(invalid data type %u)", e->data_type); + + pr_buf(out, ": %u [", e->nr_devs); + for (i = 0; i < e->nr_devs; i++) + pr_buf(out, i ? " %u" : "%u", e->devs[i]); + pr_buf(out, "]"); +} + void bch2_replicas_entry_to_text(struct printbuf *out, struct bch_replicas_entry *e) { @@ -860,7 +876,7 @@ static int bch2_cpu_replicas_validate(struct bch_replicas_cpu *cpu_r, return 0; } -static int bch2_sb_validate_replicas(struct bch_sb *sb, struct bch_sb_field *f, +static int bch2_sb_replicas_validate(struct bch_sb *sb, struct bch_sb_field *f, struct printbuf *err) { struct bch_sb_field_replicas *sb_r = field_to_type(f, replicas); @@ -890,14 +906,15 @@ static void bch2_sb_replicas_to_text(struct printbuf *out, bch2_replicas_entry_to_text(out, e); } + pr_newline(out); } const struct bch_sb_field_ops bch_sb_field_ops_replicas = { - .validate = bch2_sb_validate_replicas, + .validate = bch2_sb_replicas_validate, .to_text = bch2_sb_replicas_to_text, }; -static int bch2_sb_validate_replicas_v0(struct bch_sb *sb, struct bch_sb_field *f, +static int bch2_sb_replicas_v0_validate(struct bch_sb *sb, struct bch_sb_field *f, struct printbuf *err) { struct bch_sb_field_replicas_v0 *sb_r = field_to_type(f, replicas_v0); @@ -912,8 +929,27 @@ static int bch2_sb_validate_replicas_v0(struct bch_sb *sb, struct bch_sb_field * return ret; } +static void bch2_sb_replicas_v0_to_text(struct printbuf *out, + struct bch_sb *sb, + struct bch_sb_field *f) +{ + struct bch_sb_field_replicas_v0 *sb_r = field_to_type(f, replicas_v0); + struct bch_replicas_entry_v0 *e; + bool first = true; + + for_each_replicas_entry(sb_r, e) { + if (!first) + pr_buf(out, " "); + first = false; + + bch2_replicas_entry_v0_to_text(out, e); + } + pr_newline(out); +} + const struct bch_sb_field_ops bch_sb_field_ops_replicas_v0 = { - .validate = bch2_sb_validate_replicas_v0, + .validate = bch2_sb_replicas_v0_validate, + .to_text = bch2_sb_replicas_v0_to_text, }; /* Query replicas: */ @@ -970,19 +1006,42 @@ bool bch2_have_enough_devs(struct bch_fs *c, struct bch_devs_mask devs, return ret; } -unsigned bch2_dev_has_data(struct bch_fs *c, struct bch_dev *ca) +unsigned bch2_sb_dev_has_data(struct bch_sb *sb, unsigned dev) { - struct bch_replicas_entry *e; - unsigned i, ret = 0; + struct bch_sb_field_replicas *replicas; + struct bch_sb_field_replicas_v0 *replicas_v0; + unsigned i, data_has = 0; + + replicas = bch2_sb_get_replicas(sb); + replicas_v0 = bch2_sb_get_replicas_v0(sb); + + if (replicas) { + struct bch_replicas_entry *r; + + for_each_replicas_entry(replicas, r) + for (i = 0; i < r->nr_devs; i++) + if (r->devs[i] == dev) + data_has |= 1 << r->data_type; + } else if (replicas_v0) { + struct bch_replicas_entry_v0 *r; + + for_each_replicas_entry_v0(replicas_v0, r) + for (i = 0; i < r->nr_devs; i++) + if (r->devs[i] == dev) + data_has |= 1 << r->data_type; + } - percpu_down_read(&c->mark_lock); - for_each_cpu_replicas_entry(&c->replicas, e) - for (i = 0; i < e->nr_devs; i++) - if (e->devs[i] == ca->dev_idx) - ret |= 1 << e->data_type; + return data_has; +} - percpu_up_read(&c->mark_lock); +unsigned bch2_dev_has_data(struct bch_fs *c, struct bch_dev *ca) +{ + unsigned ret; + + mutex_lock(&c->sb_lock); + ret = bch2_sb_dev_has_data(c->disk_sb.sb, ca->dev_idx); + mutex_unlock(&c->sb_lock); return ret; } |