bcachefs: Promotes should use BCH_WRITE_only_specified_devs

Promotes, like most other internal moves, should only go to the
specified target and not fall back to allocating from the full
filesystem.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

diff --git a/fs/bcachefs/io_read.c b/fs/bcachefs/io_read.c
index 829a4f1b2f0393a84ebc3acb0cbee8f5ea5c9d9e..7a66feb1c011e486601a1e7b36fc9770a65c4fac 100644 (file)
--- a/fs/bcachefs/io_read.c
+++ b/fs/bcachefs/io_read.c
@@ -194,6 +194,7 @@ static struct bch_read_bio *__promote_alloc(struct btree_trans *trans,
                update_opts.target = orig->opts.promote_target;
                update_opts.extra_replicas = 1;
                update_opts.write_flags = BCH_WRITE_alloc_nowait|BCH_WRITE_cached;
+               update_opts.write_flags |= BCH_WRITE_only_specified_devs;
        } else {
                update_opts.target = orig->opts.foreground_target;