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bcachefs: rebalance should wakeup on shutdown if disabled

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Signed-off-by: Daniel Hill <daniel@gluo.nz>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Daniel Hill 2023-11-26 19:33:31 +13:00 committed by Kent Overstreet
parent 7452933880
commit 0c069781dd
3 changed files with 12 additions and 3 deletions
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2
fs/bcachefs/move.c
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@ -159,7 +159,7 @@ void bch2_move_ctxt_wait_for_io(struct moving_context *ctxt)
atomic_read(&ctxt->write_sectors) != sectors_pending);
}
static void bch2_moving_ctxt_flush_all(struct moving_context *ctxt)
void bch2_moving_ctxt_flush_all(struct moving_context *ctxt)
{
move_ctxt_wait_event(ctxt, list_empty(&ctxt->reads));
bch2_trans_unlock_long(ctxt->trans);

1
fs/bcachefs/move.h
View File

@ -83,6 +83,7 @@ void bch2_moving_ctxt_init(struct moving_context *, struct bch_fs *,
struct write_point_specifier, bool);
struct moving_io *bch2_moving_ctxt_next_pending_write(struct moving_context *);
void bch2_moving_ctxt_do_pending_writes(struct moving_context *);
void bch2_moving_ctxt_flush_all(struct moving_context *);
void bch2_move_ctxt_wait_for_io(struct moving_context *);
int bch2_move_ratelimit(struct moving_context *);

12
fs/bcachefs/rebalance.c
View File

@ -332,8 +332,16 @@ static int do_rebalance(struct moving_context *ctxt)
BTREE_ID_rebalance_work, POS_MIN,
BTREE_ITER_ALL_SNAPSHOTS);
while (!bch2_move_ratelimit(ctxt) &&
!kthread_wait_freezable(r->enabled)) {
while (!bch2_move_ratelimit(ctxt)) {
if (!r->enabled) {
bch2_moving_ctxt_flush_all(ctxt);
kthread_wait_freezable(r->enabled ||
kthread_should_stop());
}
if (kthread_should_stop())
break;
bch2_trans_begin(trans);
ret = bkey_err(k = next_rebalance_entry(trans, &rebalance_work_iter));