swiotlb: remove unused field "used" from struct io_tlb_mem

Commit 20347fca71a3 ("swiotlb: split up the global swiotlb lock") moved
the number of used slots to struct io_tlb_area, but it did not remove
the field from struct io_tlb_mem.

Signed-off-by: Petr Tesarik <petr.tesarik.ext@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 7af2673b47ba72a54d22cb44b9a8688489b39aed..4e52cd5e0bdcceb76e0514df2bea65eb5259fff2 100644 (file)
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -76,7 +76,6 @@ dma_addr_t swiotlb_map(struct device *dev, phys_addr_t phys,
  * @nslabs:    The number of IO TLB blocks (in groups of 64) between @start and
  *             @end. For default swiotlb, this is command line adjustable via
  *             setup_io_tlb_npages.
- * @used:      The number of used IO TLB block.
  * @list:      The free list describing the number of free entries available
  *             from each index.
  * @orig_addr: The original address corresponding to a mapped entry.
@@ -98,7 +97,6 @@ struct io_tlb_mem {
        phys_addr_t end;
        void *vaddr;
        unsigned long nslabs;
-       unsigned long used;
        struct dentry *debugfs;
        bool late_alloc;
        bool force_bounce;