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authorKent Overstreet <kent.overstreet@linux.dev>2024-06-02 22:25:18 -0400
committerKent Overstreet <kent.overstreet@linux.dev>2024-06-05 10:44:08 -0400
commitfdccb24352e589bb59c9ba90f23c4e0994b90518 (patch)
tree45c27b80330fba2e7866531140d4fd0340528e2c /fs
parent9a64e1bfd8a10c015c41fe0d289e89862486c50d (diff)
bcachefs: Rereplicate now moves data off of durability=0 devices
This fixes an issue where setting a device to durability=0 after it's been used makes it impossible to remove. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs')
-rw-r--r--fs/bcachefs/move.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/fs/bcachefs/move.c b/fs/bcachefs/move.c
index 8171f947fac8..2706d8242345 100644
--- a/fs/bcachefs/move.c
+++ b/fs/bcachefs/move.c
@@ -920,7 +920,20 @@ static bool rereplicate_pred(struct bch_fs *c, void *arg,
? c->opts.metadata_replicas
: io_opts->data_replicas;
- if (!nr_good || nr_good >= replicas)
+ rcu_read_lock();
+ struct bkey_ptrs_c ptrs = bch2_bkey_ptrs_c(k);
+ unsigned i = 0;
+ bkey_for_each_ptr(ptrs, ptr) {
+ struct bch_dev *ca = bch2_dev_rcu(c, ptr->dev);
+ if (!ptr->cached &&
+ (!ca || !ca->mi.durability))
+ data_opts->kill_ptrs |= BIT(i);
+ i++;
+ }
+ rcu_read_unlock();
+
+ if (!data_opts->kill_ptrs &&
+ (!nr_good || nr_good >= replicas))
return false;
data_opts->target = 0;