swh:1:snp:c2847dfd741eae21606027cf29250d1ebcd63fb4
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Tip revision: f8394f232b1eab649ce2df5c5f15b0e528c92091 authored by Linus Torvalds on 09 November 2020, 00:10:16 UTC
Linux 5.10-rc3
Tip revision: f8394f2
ptdump_debugfs.c
// SPDX-License-Identifier: GPL-2.0
#include <linux/debugfs.h>
#include <linux/seq_file.h>

#include <asm/ptdump.h>

static int ptdump_show(struct seq_file *m, void *v)
{
	struct ptdump_info *info = m->private;

	ptdump_walk_pgd(m, info);
	return 0;
}

static int ptdump_open(struct inode *inode, struct file *file)
{
	return single_open(file, ptdump_show, inode->i_private);
}

static const struct file_operations ptdump_fops = {
	.open		= ptdump_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= single_release,
};

void ptdump_debugfs_register(struct ptdump_info *info, const char *name)
{
	debugfs_create_file(name, 0400, NULL, info, &ptdump_fops);
}
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