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bcachefs: ec should not allocate from ro devs

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This fixes a device removal deadlock when using erasure coding.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-08-06 23:30:48 -04:00
parent c1e4446247
commit 2caca9fb16
1 changed files with 3 additions and 0 deletions
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3
fs/bcachefs/ec.c
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@ -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)