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bcachefs: copygc now skips non-rw devices

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There's no point in doing copygc on non-rw devices: the fragmentation
doesn't matter if we're not writing to them, and we may not have
anywhere to put the data on our other devices.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2025-02-28 11:34:41 -05:00
parent 33255c161a
commit 8ba73f53dc
1 changed files with 12 additions and 13 deletions
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23
fs/bcachefs/movinggc.c
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@ -74,20 +74,14 @@ static int bch2_bucket_is_movable(struct btree_trans *trans,
struct move_bucket *b, u64 time)
{
struct bch_fs *c = trans->c;
struct btree_iter iter;
struct bkey_s_c k;
struct bch_alloc_v4 _a;
const struct bch_alloc_v4 *a;
int ret;
if (bch2_bucket_is_open(trans->c,
b->k.bucket.inode,
b->k.bucket.offset))
if (bch2_bucket_is_open(c, b->k.bucket.inode, b->k.bucket.offset))
return 0;
k = bch2_bkey_get_iter(trans, &iter, BTREE_ID_alloc,
struct btree_iter iter;
struct bkey_s_c k = bch2_bkey_get_iter(trans, &iter, BTREE_ID_alloc,
b->k.bucket, BTREE_ITER_cached);
ret = bkey_err(k);
int ret = bkey_err(k);
if (ret)
return ret;
@ -95,13 +89,18 @@ static int bch2_bucket_is_movable(struct btree_trans *trans,
if (!ca)
goto out;
a = bch2_alloc_to_v4(k, &_a);
if (ca->mi.state != BCH_MEMBER_STATE_rw ||
!bch2_dev_is_online(ca))
goto out_put;
struct bch_alloc_v4 _a;
const struct bch_alloc_v4 *a = bch2_alloc_to_v4(k, &_a);
b->k.gen = a->gen;
b->sectors = bch2_bucket_sectors_dirty(*a);
u64 lru_idx = alloc_lru_idx_fragmentation(*a, ca);
ret = lru_idx && lru_idx <= time;
out_put:
bch2_dev_put(ca);
out:
bch2_trans_iter_exit(trans, &iter);