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bcachefs: kill btree_trans_too_many_iters() in bch2_bucket_alloc_freelist()

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When we're called via
trans commit -> btree split -> allocator

We may have already arbitrarily many btree_paths, for the transaction
commit we're trying to do; when this happens, the
btree_trans_too_many_iters() call causes us to livelock.

Since the allocator calls btree_iter_dontneed to release paths as it
iterates, this shouldn't cause any problems.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet
2024-07-17 11:56:05 -04:00
parent 73f88592dd
commit 2fa88b1919
1 changed files with 0 additions and 6 deletions
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6
fs/bcachefs/alloc_foreground.c
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@@ -496,12 +496,6 @@ static struct open_bucket *bch2_bucket_alloc_freelist(struct btree_trans *trans,
for (alloc_cursor = max(alloc_cursor, bkey_start_offset(k.k));
alloc_cursor < k.k->p.offset;
alloc_cursor++) {
ret = btree_trans_too_many_iters(trans);
if (ret) {
ob = ERR_PTR(ret);
break;
}
s->buckets_seen++;
u64 bucket = alloc_cursor & ~(~0ULL << 56);