tools/testing/selftests/livepatch/test-state.sh
Source file repositories/reference/linux-study-clean/tools/testing/selftests/livepatch/test-state.sh
File Facts
- System
- Linux kernel
- Corpus path
tools/testing/selftests/livepatch/test-state.sh- Extension
.sh- Size
- 7665 bytes
- Lines
- 177
- Domain
- Support Tooling And Documentation
- Bucket
- tools
- Inferred role
- Support Tooling And Documentation: tools
- Status
- atlas-only
Why This File Exists
Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2019 SUSE
. $(dirname $0)/functions.sh
MOD_LIVEPATCH=test_klp_state
MOD_LIVEPATCH2=test_klp_state2
MOD_LIVEPATCH3=test_klp_state3
setup_config
# Load and remove a module that modifies the system state
start_test "system state modification"
load_lp $MOD_LIVEPATCH
disable_lp $MOD_LIVEPATCH
unload_lp $MOD_LIVEPATCH
check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
livepatch: enabling patch '$MOD_LIVEPATCH'
livepatch: '$MOD_LIVEPATCH': initializing patching transition
$MOD_LIVEPATCH: pre_patch_callback: vmlinux
$MOD_LIVEPATCH: allocate_loglevel_state: allocating space to store console_loglevel
livepatch: '$MOD_LIVEPATCH': starting patching transition
livepatch: '$MOD_LIVEPATCH': completing patching transition
$MOD_LIVEPATCH: post_patch_callback: vmlinux
$MOD_LIVEPATCH: fix_console_loglevel: fixing console_loglevel
livepatch: '$MOD_LIVEPATCH': patching complete
% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
$MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
$MOD_LIVEPATCH: restore_console_loglevel: restoring console_loglevel
livepatch: '$MOD_LIVEPATCH': starting unpatching transition
livepatch: '$MOD_LIVEPATCH': completing unpatching transition
$MOD_LIVEPATCH: post_unpatch_callback: vmlinux
$MOD_LIVEPATCH: free_loglevel_state: freeing space for the stored console_loglevel
livepatch: '$MOD_LIVEPATCH': unpatching complete
% rmmod $MOD_LIVEPATCH"
# Take over system state change by a cumulative patch
start_test "taking over system state modification"
load_lp $MOD_LIVEPATCH
load_lp $MOD_LIVEPATCH2
unload_lp $MOD_LIVEPATCH
disable_lp $MOD_LIVEPATCH2
unload_lp $MOD_LIVEPATCH2
check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
livepatch: enabling patch '$MOD_LIVEPATCH'
livepatch: '$MOD_LIVEPATCH': initializing patching transition
$MOD_LIVEPATCH: pre_patch_callback: vmlinux
$MOD_LIVEPATCH: allocate_loglevel_state: allocating space to store console_loglevel
livepatch: '$MOD_LIVEPATCH': starting patching transition
livepatch: '$MOD_LIVEPATCH': completing patching transition
$MOD_LIVEPATCH: post_patch_callback: vmlinux
$MOD_LIVEPATCH: fix_console_loglevel: fixing console_loglevel
livepatch: '$MOD_LIVEPATCH': patching complete
% insmod test_modules/$MOD_LIVEPATCH2.ko
livepatch: enabling patch '$MOD_LIVEPATCH2'
livepatch: '$MOD_LIVEPATCH2': initializing patching transition
$MOD_LIVEPATCH2: pre_patch_callback: vmlinux
$MOD_LIVEPATCH2: allocate_loglevel_state: space to store console_loglevel already allocated
livepatch: '$MOD_LIVEPATCH2': starting patching transition
livepatch: '$MOD_LIVEPATCH2': completing patching transition
Annotation
- Atlas domain: Support Tooling And Documentation / tools.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.