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Name	Size	Permission	Date
common	[ DIR ]	drwxr-xr-x	2025-09-08 19:44
ftrace_hooks	[ DIR ]	drwxr-xr-x	2025-09-08 19:44
lsm_hooks	[ DIR ]	drwxr-xr-x	2025-09-08 19:44
syscall_hooks	[ DIR ]	drwxr-xr-x	2025-09-08 19:44
transport	[ DIR ]	drwxr-xr-x	2025-09-08 19:44
Kbuild	10.29 KB	-rw-r--r--	2025-09-08 19:44
Makefile	2.23 KB	-rw-r--r--	2025-09-08 19:44
compat.c	8.42 KB	-rw-r--r--	2025-09-08 19:44
compat.h	11.98 KB	-rw-r--r--	2025-09-08 19:44
debug.h	3.56 KB	-rw-r--r--	2025-09-08 19:44
dkms.conf	146 B	-rw-r--r--	2025-09-08 19:44
file_contexts.c	52.97 KB	-rw-r--r--	2025-09-08 19:44
file_contexts.h	2.86 KB	-rw-r--r--	2025-09-08 19:44
file_contexts_priv.h	5.33 KB	-rw-r--r--	2025-09-08 19:44
file_handle_tools.h	2.53 KB	-rw-r--r--	2025-09-08 19:44
file_key_tools.h	950 B	-rw-r--r--	2025-09-08 19:44
file_path_tools.h	2.09 KB	-rw-r--r--	2025-09-08 19:44
hashtable_compat.h	2.73 KB	-rw-r--r--	2025-09-08 19:44
hook_trampoline_common.h	4.29 KB	-rw-r--r--	2025-09-08 19:44
interval_tree.h	779 B	-rw-r--r--	2025-09-08 19:44
memory.c	3.31 KB	-rw-r--r--	2025-09-08 19:44
memory.h	2.99 KB	-rw-r--r--	2025-09-08 19:44
module.c	2.67 KB	-rw-r--r--	2025-09-08 19:44
module_ref.h	421 B	-rw-r--r--	2025-09-08 19:44
module_rundown_protection.c	3.64 KB	-rw-r--r--	2025-09-08 19:44
module_rundown_protection.h	743 B	-rw-r--r--	2025-09-08 19:44
path_tools.h	5.84 KB	-rw-r--r--	2025-09-08 19:44
rundown_protection.c	4.2 KB	-rw-r--r--	2025-09-08 19:44
rundown_protection.h	2.83 KB	-rw-r--r--	2025-09-08 19:44
safe_kobject.h	1.28 KB	-rw-r--r--	2025-09-08 19:44
si_common.h	4.3 KB	-rw-r--r--	2025-09-08 19:44
si_fp_properties.h	858 B	-rw-r--r--	2025-09-08 19:44
si_fp_properties_x.h	18.53 KB	-rw-r--r--	2025-09-08 19:44
si_fp_value_types.h	515 B	-rw-r--r--	2025-09-08 19:44
si_fp_value_types_x.h	1.25 KB	-rw-r--r--	2025-09-08 19:44
si_size.h	4.26 KB	-rw-r--r--	2025-09-08 19:44
si_templates.h	2.99 KB	-rw-r--r--	2025-09-08 19:44
si_writer.h	7.52 KB	-rw-r--r--	2025-09-08 19:44
si_writer_common.h	14.63 KB	-rw-r--r--	2025-09-08 19:44
stringify.h	261 B	-rw-r--r--	2025-09-08 19:44
task_info_map.c	17.1 KB	-rw-r--r--	2025-09-08 19:44
task_info_map.h	6.33 KB	-rw-r--r--	2025-09-08 19:44
task_tools.h	1.34 KB	-rw-r--r--	2025-09-08 19:44
tracepoints.c	3.58 KB	-rw-r--r--	2025-09-08 19:44
tracepoints.h	299 B	-rw-r--r--	2025-09-08 19:44
write_protection.h	2.2 KB	-rw-r--r--	2025-09-08 19:44

Rename

/**
@file     safe_kobject.h
@brief    Safe kobject interop with sysfs
@details  Copyright (c) 2025 Acronis International GmbH
@author   Denis Kopyrin (denis.kopyrin@acronis.com)
@since    $Id: $
*/

#pragma once

#include <linux/completion.h>
#include <linux/kobject.h>

#ifdef KERNEL_MOCK
#include <mock/mock_types.h>
#endif

// The problem with kobject is that it is embedded in sysfs system.
// For regular monolith design it is not an issue but for unload code we do not want our callback to triggered.
// The common solution for this is to use waitable 'completion' that is invoked from 'release' instead of 'kfree'.

typedef struct safe_kobject_s {
	struct kobject kobj;
	struct completion complete;
} safe_kobject_t;

#define to_safe_kobject(_at) container_of(_at, safe_kobject_t, kobj)

static inline void safe_kobject_sysfs_release(struct kobject* obj)
{
    // TODO: Figure out why container_of does not work here
	safe_kobject_t* skobj = (safe_kobject_t*) obj;
	complete(&skobj->complete);
}

static inline void safe_kobject_init(safe_kobject_t* skobj)
{
    skobj->kobj = (struct kobject){};
    init_completion(&skobj->complete);
}

static inline void safe_kobject_del(safe_kobject_t* skobj)
{
    kobject_del(&skobj->kobj);
    kobject_put(&skobj->kobj);
    wait_for_completion(&skobj->complete);
}