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This patch introduces an s390 Common I/O layer debugfs directory that is intended to provide access to debugging-related CIO functions and data. The directory is created as /sys/kernel/debug/s390/cio Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com> Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
24 lines
520 B
C
24 lines
520 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* S/390 common I/O debugfs interface
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*
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* Copyright IBM Corp. 2021
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* Author(s): Vineeth Vijayan <vneethv@linux.ibm.com>
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*/
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#include <linux/debugfs.h>
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#include "cio_debug.h"
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struct dentry *cio_debugfs_dir;
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/* Create the debugfs directory for CIO under the arch_debugfs_dir
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* i.e /sys/kernel/debug/s390/cio
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*/
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static int __init cio_debugfs_init(void)
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{
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cio_debugfs_dir = debugfs_create_dir("cio", arch_debugfs_dir);
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return 0;
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}
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subsys_initcall(cio_debugfs_init);
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