diff options
Diffstat (limited to 'net/ipv4/inet_hashtables.c')
-rw-r--r-- | net/ipv4/inet_hashtables.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c index 5f9b063bbe8a..0cb9165421d4 100644 --- a/net/ipv4/inet_hashtables.c +++ b/net/ipv4/inet_hashtables.c | |||
@@ -624,22 +624,21 @@ EXPORT_SYMBOL_GPL(inet_hashinfo_init); | |||
624 | 624 | ||
625 | int inet_ehash_locks_alloc(struct inet_hashinfo *hashinfo) | 625 | int inet_ehash_locks_alloc(struct inet_hashinfo *hashinfo) |
626 | { | 626 | { |
627 | unsigned int locksz = sizeof(spinlock_t); | ||
627 | unsigned int i, nblocks = 1; | 628 | unsigned int i, nblocks = 1; |
628 | 629 | ||
629 | if (sizeof(spinlock_t) != 0) { | 630 | if (locksz != 0) { |
630 | /* allocate 2 cache lines or at least one spinlock per cpu */ | 631 | /* allocate 2 cache lines or at least one spinlock per cpu */ |
631 | nblocks = max_t(unsigned int, | 632 | nblocks = max(2U * L1_CACHE_BYTES / locksz, 1U); |
632 | 2 * L1_CACHE_BYTES / sizeof(spinlock_t), | ||
633 | 1); | ||
634 | nblocks = roundup_pow_of_two(nblocks * num_possible_cpus()); | 633 | nblocks = roundup_pow_of_two(nblocks * num_possible_cpus()); |
635 | 634 | ||
636 | /* no more locks than number of hash buckets */ | 635 | /* no more locks than number of hash buckets */ |
637 | nblocks = min(nblocks, hashinfo->ehash_mask + 1); | 636 | nblocks = min(nblocks, hashinfo->ehash_mask + 1); |
638 | 637 | ||
639 | hashinfo->ehash_locks = kmalloc_array(nblocks, sizeof(spinlock_t), | 638 | hashinfo->ehash_locks = kmalloc_array(nblocks, locksz, |
640 | GFP_KERNEL | __GFP_NOWARN); | 639 | GFP_KERNEL | __GFP_NOWARN); |
641 | if (!hashinfo->ehash_locks) | 640 | if (!hashinfo->ehash_locks) |
642 | hashinfo->ehash_locks = vmalloc(nblocks * sizeof(spinlock_t)); | 641 | hashinfo->ehash_locks = vmalloc(nblocks * locksz); |
643 | 642 | ||
644 | if (!hashinfo->ehash_locks) | 643 | if (!hashinfo->ehash_locks) |
645 | return -ENOMEM; | 644 | return -ENOMEM; |