Something went wrong. Try again.
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Something went wrong. Try again.
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566// SPDX-License-Identifier: GPL-2.0-only#include <linux/debugfs.h>#include <linux/ras.h>#include "debugfs.h"
static struct dentry *ras_debugfs_dir;
static atomic_t trace_count = ATOMIC_INIT(0);
struct dentry *ras_get_debugfs_root(void){ return ras_debugfs_dir;}EXPORT_SYMBOL_GPL(ras_get_debugfs_root);
int ras_userspace_consumers(void){ return atomic_read(&trace_count);}EXPORT_SYMBOL_GPL(ras_userspace_consumers);
static int trace_show(struct seq_file *m, void *v){ return 0;}
static int trace_open(struct inode *inode, struct file *file){ atomic_inc(&trace_count); return single_open(file, trace_show, NULL);}
static int trace_release(struct inode *inode, struct file *file){ atomic_dec(&trace_count); return single_release(inode, file);}
static const struct file_operations trace_fops = { .open = trace_open, .read = seq_read, .llseek = seq_lseek, .release = trace_release,};
int __init ras_add_daemon_trace(void){ struct dentry *fentry;
if (!ras_debugfs_dir) return -ENOENT;
fentry = debugfs_create_file("daemon_active", S_IRUSR, ras_debugfs_dir, NULL, &trace_fops); if (IS_ERR(fentry)) return -ENODEV;
return 0;
}
void __init ras_debugfs_init(void){ ras_debugfs_dir = debugfs_create_dir("ras", NULL);}