diff options
| author |   Matthew Wilcox <mawilcox@microsoft.com> | 2017-11-28 13:45:02 -0500 |
|---|---|---|
| committer | Matthew Wilcox <mawilcox@microsoft.com> | 2018-02-06 16:41:27 -0500 |
| commit | f730cb93db8e640f95ba4acb339d5732e1721730 (patch) | |
| tree | 61a9f3a4869bc9f757ec995bdc4c31a7be0b61c1 /net/sched/cls_u32.c | |
| parent | cls_u32: Reinstate cyclic allocation (diff) | |
| download | linux-dev-f730cb93db8e640f95ba4acb339d5732e1721730.tar.xz linux-dev-f730cb93db8e640f95ba4acb339d5732e1721730.zip | |
cls_u32: Convert to idr_alloc_u32
No real benefit to this classifier, but since we're allocating a u32
anyway, we should use this function.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Diffstat (limited to '')
| -rw-r--r-- | net/sched/cls_u32.c | 23 |
1 files changed, 10 insertions, 13 deletions
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c index d2805f24ddd3..82f85d6a245a 100644 --- a/net/sched/cls_u32.c +++ b/net/sched/cls_u32.c @@ -740,19 +740,17 @@ ret: static u32 gen_new_kid(struct tc_u_hnode *ht, u32 htid) { - unsigned long idr_index; - u32 start = htid | 0x800; + u32 index = htid | 0x800; u32 max = htid | 0xFFF; - u32 min = htid; - if (idr_alloc_ext(&ht->handle_idr, NULL, &idr_index, - start, max + 1, GFP_KERNEL)) { - if (idr_alloc_ext(&ht->handle_idr, NULL, &idr_index, - min + 1, max + 1, GFP_KERNEL)) - return max; + if (idr_alloc_u32(&ht->handle_idr, NULL, &index, max, GFP_KERNEL)) { + index = htid + 1; + if (idr_alloc_u32(&ht->handle_idr, NULL, &index, max, + GFP_KERNEL)) + index = max; } - return (u32)idr_index; + return index; } static const struct nla_policy u32_policy[TCA_U32_MAX + 1] = { @@ -1003,8 +1001,8 @@ static int u32_change(struct net *net, struct sk_buff *in_skb, return -ENOMEM; } } else { - err = idr_alloc_ext(&tp_c->handle_idr, ht, NULL, - handle, handle + 1, GFP_KERNEL); + err = idr_alloc_u32(&tp_c->handle_idr, ht, &handle, + handle, GFP_KERNEL); if (err) { kfree(ht); return err; @@ -1060,8 +1058,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb, return -EINVAL; } handle = htid | TC_U32_NODE(handle); - err = idr_alloc_ext(&ht->handle_idr, NULL, NULL, - handle, handle + 1, + err = idr_alloc_u32(&ht->handle_idr, NULL, &handle, handle, GFP_KERNEL); if (err) return err; |