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swiotlb: remove unused fields in io_tlb_mem

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Commit 20347fca71 ("swiotlb: split up the global swiotlb lock") splits
io_tlb_mem into multiple areas. Each area has its own lock and index. The
global ones are not used so remove them.

Signed-off-by: Chao Gao <chao.gao@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Chao Gao
2022-07-15 18:45:33 +08:00
committed by Christoph Hellwig
parent 4a97739474
commit 91561d4ecb
2 changed files with 0 additions and 7 deletions
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5
include/linux/swiotlb.h
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@@ -79,11 +79,8 @@ dma_addr_t swiotlb_map(struct device *dev, phys_addr_t phys,
* @used: The number of used IO TLB block.
* @list: The free list describing the number of free entries available
* from each index.
* @index: The index to start searching in the next round.
* @orig_addr: The original address corresponding to a mapped entry.
* @alloc_size: Size of the allocated buffer.
* @lock: The lock to protect the above data structures in the map and
* unmap calls.
* @debugfs: The dentry to debugfs.
* @late_alloc: %true if allocated using the page allocator
* @force_bounce: %true if swiotlb bouncing is forced
@@ -97,8 +94,6 @@ struct io_tlb_mem {
void *vaddr;
unsigned long nslabs;
unsigned long used;
unsigned int index;
spinlock_t lock;
struct dentry *debugfs;
bool late_alloc;
bool force_bounce;