Commit d6d539c9 authored by Kent Overstreet's avatar Kent Overstreet
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bcachefs: Reallocate table when we're increasing size 



Fixes: c2f6e16a ("bcachefs: Increase size of cuckoo hash table on too many rehashes")
Signed-off-by: default avatarKent Overstreet <kent.overstreet@linux.dev>
parent 0e49d3ff

fs/bcachefs/buckets_waiting_for_journal.c

+3 −1
Original line number Diff line number Diff line
@@ -107,7 +107,7 @@ int bch2_set_bucket_needs_journal_commit(struct buckets_waiting_for_journal *b, 
		nr_elements += t->d[i].journal_seq > flushed_seq;



	new_bits = ilog2(roundup_pow_of_two(nr_elements * 3));



realloc:

	n = kvmalloc(sizeof(*n) + (sizeof(n->d[0]) << new_bits), GFP_KERNEL);

	if (!n) {

		ret = -BCH_ERR_ENOMEM_buckets_waiting_for_journal_set;
@@ -118,6 +118,8 @@ int bch2_set_bucket_needs_journal_commit(struct buckets_waiting_for_journal *b, 
	if (nr_rehashes_this_size == 3) {

		new_bits++;

		nr_rehashes_this_size = 0;

		kvfree(n);

		goto realloc;

	}



	nr_rehashes++;