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bcachefs: handle failed data_update_init cleanup

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data_update_init allocates several resources, but we forget to clean
these up when it fails.

Signed-off-by: Daniel Hill <daniel@gluo.nz>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Daniel Hill 2022-12-09 12:37:56 +13:00 committed by Kent Overstreet
parent 71fe14655f
commit f3a37e76ca
1 changed files with 9 additions and 1 deletions
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10
fs/bcachefs/data_update.c
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@ -469,7 +469,7 @@ int bch2_data_update_init(struct bch_fs *c, struct data_update *m,
? 0
: BCH_DISK_RESERVATION_NOFAIL);
if (ret)
return ret;
goto err;
}
m->op.nr_replicas = m->op.nr_replicas_required =
@ -481,6 +481,14 @@ int bch2_data_update_init(struct bch_fs *c, struct data_update *m,
if (bkey_extent_is_unwritten(k))
return -BCH_ERR_unwritten_extent_update;
return 0;
err:
bkey_for_each_ptr_decode(k.k, ptrs, p, entry)
bch2_bucket_nocow_unlock(&c->nocow_locks,
PTR_BUCKET_POS(c, &p.ptr), 0);
bch2_bkey_buf_exit(&m->k, c);
bch2_bio_free_pages_pool(c, &m->op.wbio.bio);
return ret;
}
void bch2_data_update_opts_normalize(struct bkey_s_c k, struct data_update_opts *opts)