From fdccb24352e589bb59c9ba90f23c4e0994b90518 Mon Sep 17 00:00:00 2001 From: Kent Overstreet Date: Sun, 2 Jun 2024 22:25:18 -0400 Subject: [PATCH] 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 --- fs/bcachefs/move.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) 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; -- 2.20.1