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bcachefs: Don't start rewriting btree nodes until after journal replay

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This fixes a deadlock during journal replay when btree node read errors
kick off a ton of rewrites: we don't want them competing with journal
replay.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-12-09 06:00:33 -05:00
parent d7f6becfe0
commit 0939c611ce
1 changed files with 2 additions and 1 deletions
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3
fs/bcachefs/btree_update_interior.c
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@ -2291,7 +2291,8 @@ void bch2_btree_node_rewrite_async(struct bch_fs *c, struct btree *b)
bool now = false, pending = false;
spin_lock(&c->btree_node_rewrites_lock);
if (bch2_write_ref_tryget(c, BCH_WRITE_REF_node_rewrite)) {
if (c->curr_recovery_pass > BCH_RECOVERY_PASS_journal_replay &&
bch2_write_ref_tryget(c, BCH_WRITE_REF_node_rewrite)) {
list_add(&a->list, &c->btree_node_rewrites);
now = true;
} else if (!test_bit(BCH_FS_may_go_rw, &c->flags)) {