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From: Nikita Ofitserov via B4 Relay <devnull+himikof.gmail.com@kernel.org>
To: Kent Overstreet <kent.overstreet@linux.dev>
Cc: linux-bcachefs@vger.kernel.org, Nikita Ofitserov <himikof@gmail.com>
Subject: [PATCH 09/12] bcachefs: Partially fix old device removal with unknown btrees
Date: Wed, 27 Aug 2025 01:49:15 +0300	[thread overview]
Message-ID: <20250827-better-progress-v1-9-74c24de7988a@gmail.com> (raw)
In-Reply-To: <20250827-better-progress-v1-0-74c24de7988a@gmail.com>

From: Nikita Ofitserov <himikof@gmail.com>

Handle removal of unknown metadata only, data pointed to by unknown
btrees cannot be supported currently.

Signed-off-by: Nikita Ofitserov <himikof@gmail.com>
---
 fs/bcachefs/migrate.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/bcachefs/migrate.c b/fs/bcachefs/migrate.c
index 0ef576ec45c7310423cf7cdf902cad30dba257db..d67ca56d3f431980b104ea5528cce79be88f93fb 100644
--- a/fs/bcachefs/migrate.c
+++ b/fs/bcachefs/migrate.c
@@ -121,6 +121,7 @@ static int bch2_dev_usrdata_drop(struct bch_fs *c,
 {
 	CLASS(btree_trans, trans)(c);
 
+	/* FIXME: this does not handle unknown btrees with data pointers */
 	for (unsigned id = 0; id < BTREE_ID_NR; id++) {
 		if (!btree_type_has_data_ptrs(id))
 			continue;
@@ -161,7 +162,7 @@ static int bch2_dev_metadata_drop(struct bch_fs *c,
 	bch2_bkey_buf_init(&k);
 	closure_init_stack(&cl);
 
-	for (id = 0; id < BTREE_ID_NR; id++) {
+	for (id = 0; id < btree_id_nr_alive(c); id++) {
 		bch2_trans_node_iter_init(trans, &iter, id, POS_MIN, 0, 0,
 					  BTREE_ITER_prefetch);
 retry:

-- 
2.50.1



  parent reply	other threads:[~2025-08-26 22:50 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-26 22:49 [PATCH 00/12] Accounting for accurate progress reporting Nikita Ofitserov via B4 Relay
2025-08-26 22:49 ` [PATCH 01/12] bcachefs: Relax restrictions on the number of accounting counters Nikita Ofitserov via B4 Relay
2025-08-26 22:49 ` [PATCH 02/12] bcachefs: Introduce btree node number accounting Nikita Ofitserov via B4 Relay
2025-08-26 22:49 ` [PATCH 03/12] bcachefs: Use explicit node counts in progress reporting Nikita Ofitserov via B4 Relay
2025-08-26 22:49 ` [PATCH 04/12] bcachefs: Introduce btree_leaf_has_triggers_mask Nikita Ofitserov via B4 Relay
2025-08-26 22:49 ` [PATCH 05/12] bcachefs: Better progress reporting for btree iteration without leaves Nikita Ofitserov via B4 Relay
2025-08-26 22:49 ` [PATCH 06/12] bcachefs: Refactor/rename btree_type_has_ptrs Nikita Ofitserov via B4 Relay
2025-08-26 22:49 ` [PATCH 07/12] bcachefs: More accurate progress reporting for inner node iteration Nikita Ofitserov via B4 Relay
2025-08-26 22:49 ` [PATCH 08/12] bcachefs: Fix progress reporting for unknown btrees Nikita Ofitserov via B4 Relay
2025-08-26 22:49 ` Nikita Ofitserov via B4 Relay [this message]
2025-08-26 22:49 ` [PATCH 10/12] bcachefs: Improve check_allocations pass speed not in fsck Nikita Ofitserov via B4 Relay
2025-08-26 22:49 ` [PATCH 11/12] bcachefs: Fix missing c->usage updates from early recovery Nikita Ofitserov via B4 Relay
2025-08-26 22:49 ` [PATCH 12/12] bcachefs: Fix online hidden (sb+journal) data accounting Nikita Ofitserov via B4 Relay
2025-08-27 17:17 ` [PATCH 00/12] Accounting for accurate progress reporting Kent Overstreet

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