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powerpc/powernv/ioda: using kfree_rcu() to simplify the code

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The callback function of call_rcu() just calls a kfree(), so we
can use kfree_rcu() instead of call_rcu() + callback function.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190711141818.18044-1-yuehaibing@huawei.com
This commit is contained in:
YueHaibing 2019-07-11 22:18:18 +08:00 committed by Michael Ellerman
parent bc75e54384
commit c312d14e19
1 changed files with 1 additions and 9 deletions
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10
arch/powerpc/platforms/powernv/pci-ioda-tce.c
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@ -340,14 +340,6 @@ long pnv_pci_ioda2_table_alloc_pages(int nid, __u64 bus_offset,
return -ENOMEM;
}
static void pnv_iommu_table_group_link_free(struct rcu_head *head)
{
struct iommu_table_group_link *tgl = container_of(head,
struct iommu_table_group_link, rcu);
kfree(tgl);
}
void pnv_pci_unlink_table_and_group(struct iommu_table *tbl,
struct iommu_table_group *table_group)
{
@ -363,7 +355,7 @@ void pnv_pci_unlink_table_and_group(struct iommu_table *tbl,
list_for_each_entry_rcu(tgl, &tbl->it_group_list, next) {
if (tgl->table_group == table_group) {
list_del_rcu(&tgl->next);
call_rcu(&tgl->rcu, pnv_iommu_table_group_link_free);
kfree_rcu(tgl, rcu);
found = true;
break;
}