diff options
Diffstat (limited to 'libbcachefs/disk_groups.c')
| -rw-r--r-- | libbcachefs/disk_groups.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/libbcachefs/disk_groups.c b/libbcachefs/disk_groups.c index 4a4ec8f4..c52b6faa 100644 --- a/libbcachefs/disk_groups.c +++ b/libbcachefs/disk_groups.c @@ -183,7 +183,7 @@ const struct bch_devs_mask *bch2_target_to_mask(struct bch_fs *c, unsigned targe case TARGET_GROUP: { struct bch_disk_groups_cpu *g = rcu_dereference(c->disk_groups); - return t.group < g->nr && !g->entries[t.group].deleted + return g && t.group < g->nr && !g->entries[t.group].deleted ? &g->entries[t.group].devs : NULL; } @@ -208,7 +208,7 @@ bool bch2_dev_in_target(struct bch_fs *c, unsigned dev, unsigned target) rcu_read_lock(); g = rcu_dereference(c->disk_groups); - m = t.group < g->nr && !g->entries[t.group].deleted + m = g && t.group < g->nr && !g->entries[t.group].deleted ? &g->entries[t.group].devs : NULL; @@ -387,6 +387,7 @@ int bch2_dev_group_set(struct bch_fs *c, struct bch_dev *ca, const char *name) { struct bch_member *mi; int v = -1; + int ret = 0; mutex_lock(&c->sb_lock); @@ -399,14 +400,18 @@ int bch2_dev_group_set(struct bch_fs *c, struct bch_dev *ca, const char *name) return v; } + ret = bch2_sb_disk_groups_to_cpu(c); + if (ret) + goto unlock; write_sb: mi = &bch2_sb_get_members(c->disk_sb.sb)->members[ca->dev_idx]; SET_BCH_MEMBER_GROUP(mi, v + 1); bch2_write_super(c); +unlock: mutex_unlock(&c->sb_lock); - return 0; + return ret; } int bch2_opt_target_parse(struct bch_fs *c, const char *buf, u64 *v) |