From: Kent Overstreet <kent.overstreet@linux.dev>
Date: Sat, 8 Feb 2025 02:26:27 +0000 (-0500)
Subject: bcachefs: Ignore backpointers to stripes in ec_stripe_update_extents()
X-Git-Tag: v6.15-rc1~146^2~131
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7606fb4d26e0684d40e40ea070a30af901e5bbbd;p=thirdparty%2Fkernel%2Flinux.git

bcachefs: Ignore backpointers to stripes in ec_stripe_update_extents()

Prep work for stripe backpointers: this path previously would get very
confused at being asked to process (remove redundant replicas) stripes.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
---

diff --git a/fs/bcachefs/ec.c b/fs/bcachefs/ec.c
index d2a5e76e64791..1aa56d28de335 100644
--- a/fs/bcachefs/ec.c
+++ b/fs/bcachefs/ec.c
@@ -1380,8 +1380,12 @@ static int ec_stripe_update_bucket(struct btree_trans *trans, struct ec_stripe_b
 		if (bp_k.k->type != KEY_TYPE_backpointer)
 			continue;
 
+		struct bkey_s_c_backpointer bp = bkey_s_c_to_backpointer(bp_k);
+		if (bp.v->btree_id == BTREE_ID_stripes)
+			continue;
+
 		ec_stripe_update_extent(trans, ca, bucket_pos, ptr.gen, s,
-					bkey_s_c_to_backpointer(bp_k), &last_flushed);
+					bp, &last_flushed);
 	}));
 
 	bch2_bkey_buf_exit(&last_flushed, c);