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(parent: 8419702) | patch
swiotlb: fix passing local variable to debugfs_create_ulong()
authorTianyu Lan <tiala@microsoft.com>
Thu, 28 Jul 2022 07:24:20 +0000 (03:24 -0400)
committerChristoph Hellwig <hch@lst.de>
Thu, 28 Jul 2022 14:23:30 +0000 (07:23 -0700)
commit5c850d31880e00f063fa2a3746ba212c4bcc510f
treed567d8722178f5759f98f1b32e528dcb768cc3a3tree | snapshot
parent8419702489f3be7f9e4fcf12c04d9d3f00114d35commit | diff
swiotlb: fix passing local variable to debugfs_create_ulong()

Debugfs node will be run-timely checked and so local variable
should be not passed to debugfs_create_ulong(). Fix it via
debugfs_create_file() to create io_tlb_used node and calculate
used io tlb number with fops_io_tlb_used attribute.

Fixes: 20347fca71a3 ("swiotlb: split up the global swiotlb lock")
Signed-off-by: Tianyu Lan <tiala@microsoft.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
kernel/dma/swiotlb.c diff | blob | history
Domain: System / Kernel;