diff options
| author | Michael Kelley <mikelley@microsoft.com> | 2023-04-13 08:37:30 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-05-11 23:11:29 +0900 |
| commit | eceb1cd49c67debc7887c306d2d8efee3d95d04f (patch) | |
| tree | 08616b619933c3bc6c7108a1c915a30b9e4ef1da | |
| parent | be138dfeba5264ffb4273fd6b4f7ec8b9b2c2878 (diff) | |
swiotlb: fix debugfs reporting of reserved memory pools
[ Upstream commit 5499d01c029069044a3b3e50501c77b474c96178 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -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 465cd2b5481f..81f40821084e 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -935,7 +935,9 @@ 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"); @@ -948,7 +950,7 @@ 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); } |