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| author | Michael Kelley <mikelley@microsoft.com> | 2023-04-13 17:37:30 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2023-04-16 08:23:14 +0200 |
| commit | 5499d01c029069044a3b3e50501c77b474c96178 (patch) | |
| tree | 54bf6fe091ab9f51bd26312f169a36b145f036e3 /kernel | |
| parent | swiotlb: relocate PageHighMem test away from rmem_swiotlb_setup (diff) | |
| download | linux-5499d01c029069044a3b3e50501c77b474c96178.tar.xz linux-5499d01c029069044a3b3e50501c77b474c96178.zip | |
swiotlb: fix debugfs reporting of reserved memory pools
For io_tlb_nslabs, the debugfs code reports the correct value for a
specific reserved memory pool. But for io_tlb_used, the value reported
is always for the default pool, not the specific reserved pool. Fix this.
Fixes: 5c850d31880e ("swiotlb: fix passing local variable to debugfs_create_ulong()")
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/dma/swiotlb.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index 1ec38701a7f5..938c959ab19e 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -930,7 +930,9 @@ EXPORT_SYMBOL_GPL(is_swiotlb_active); static int io_tlb_used_get(void *data, u64 *val) { - *val = mem_used(&io_tlb_default_mem); + struct io_tlb_mem *mem = data; + + *val = mem_used(mem); return 0; } DEFINE_DEBUGFS_ATTRIBUTE(fops_io_tlb_used, io_tlb_used_get, NULL, "%llu\n"); @@ -943,7 +945,7 @@ static void swiotlb_create_debugfs_files(struct io_tlb_mem *mem, return; debugfs_create_ulong("io_tlb_nslabs", 0400, mem->debugfs, &mem->nslabs); - debugfs_create_file("io_tlb_used", 0400, mem->debugfs, NULL, + debugfs_create_file("io_tlb_used", 0400, mem->debugfs, mem, &fops_io_tlb_used); } |