cls_flower: Convert to idr_alloc_u32
Use the new helper which saves a temporary variable and a few lines of code. Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
This commit is contained in:
Родитель
0b4ce8da79
Коммит
85bd0438a2
|
@ -865,7 +865,6 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
|
|||
struct cls_fl_filter *fnew;
|
||||
struct nlattr **tb;
|
||||
struct fl_flow_mask mask = {};
|
||||
unsigned long idr_index;
|
||||
int err;
|
||||
|
||||
if (!tca[TCA_OPTIONS])
|
||||
|
@ -896,21 +895,17 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
|
|||
goto errout;
|
||||
|
||||
if (!handle) {
|
||||
err = idr_alloc_ext(&head->handle_idr, fnew, &idr_index,
|
||||
1, 0x80000000, GFP_KERNEL);
|
||||
if (err)
|
||||
goto errout;
|
||||
fnew->handle = idr_index;
|
||||
}
|
||||
|
||||
/* user specifies a handle and it doesn't exist */
|
||||
if (handle && !fold) {
|
||||
err = idr_alloc_ext(&head->handle_idr, fnew, &idr_index,
|
||||
handle, handle + 1, GFP_KERNEL);
|
||||
if (err)
|
||||
goto errout;
|
||||
fnew->handle = idr_index;
|
||||
handle = 1;
|
||||
err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
|
||||
INT_MAX, GFP_KERNEL);
|
||||
} else if (!fold) {
|
||||
/* user specifies a handle and it doesn't exist */
|
||||
err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
|
||||
handle, GFP_KERNEL);
|
||||
}
|
||||
if (err)
|
||||
goto errout;
|
||||
fnew->handle = handle;
|
||||
|
||||
if (tb[TCA_FLOWER_FLAGS]) {
|
||||
fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]);
|
||||
|
@ -966,7 +961,6 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
|
|||
*arg = fnew;
|
||||
|
||||
if (fold) {
|
||||
fnew->handle = handle;
|
||||
idr_replace(&head->handle_idr, fnew, fnew->handle);
|
||||
list_replace_rcu(&fold->list, &fnew->list);
|
||||
tcf_unbind_filter(tp, &fold->res);
|
||||
|
|
Загрузка…
Ссылка в новой задаче