Commit 2caca9fb authored by Kent Overstreet's avatar Kent Overstreet
Browse files

bcachefs: ec should not allocate from ro devs 



This fixes a device removal deadlock when using erasure coding.

Signed-off-by: default avatarKent Overstreet <kent.overstreet@linux.dev>
parent c1e44462

fs/bcachefs/ec.c

+3 −0
Original line number Diff line number Diff line
@@ -1809,6 +1809,9 @@ static int new_stripe_alloc_buckets(struct btree_trans *trans, struct ec_stripe_ 
	BUG_ON(v->nr_blocks	!= h->s->nr_data + h->s->nr_parity);

	BUG_ON(v->nr_redundant	!= h->s->nr_parity);



	/* * We bypass the sector allocator which normally does this: */

	bitmap_and(devs.d, devs.d, c->rw_devs[BCH_DATA_user].d, BCH_SB_MEMBERS_MAX);



	for_each_set_bit(i, h->s->blocks_gotten, v->nr_blocks) {

		__clear_bit(v->ptrs[i].dev, devs.d);

		if (i < h->s->nr_data)