bcachefs: New erasure coding shutdown path
This implements a new shutdown path for erasure coding, which is needed
for the upcoming BCH_WRITE_WAIT_FOR_EC write path.
The process is:
- Cancel new stripes being built up
- Close out/cancel open buckets on write points or the partial list
that are for stripes
- Shutdown rebalance/copygc
- Then wait for in flight new stripes to finish
With BCH_WRITE_WAIT_FOR_EC, move ops will be waiting on stripes to fill
up before they complete; the new ec shutdown path is needed for shutting
down copygc/rebalance without deadlocking.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
diff --git a/fs/bcachefs/bcachefs.h b/fs/bcachefs/bcachefs.h
index 8be65eb..05fc0f74 100644
--- a/fs/bcachefs/bcachefs.h
+++ b/fs/bcachefs/bcachefs.h
@@ -655,7 +655,6 @@ typedef struct {
x(fallocate) \
x(discard) \
x(invalidate) \
- x(move) \
x(delete_dead_snapshots) \
x(snapshot_delete_pagecache) \
x(sysfs)
@@ -958,14 +957,14 @@ struct bch_fs {
struct list_head ec_stripe_new_list;
struct mutex ec_stripe_new_lock;
+ wait_queue_head_t ec_stripe_new_wait;
struct work_struct ec_stripe_create_work;
u64 ec_stripe_hint;
- struct bio_set ec_bioset;
-
struct work_struct ec_stripe_delete_work;
- struct llist_head ec_stripe_delete_list;
+
+ struct bio_set ec_bioset;
/* REFLINK */
u64 reflink_hint;
