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12af2b83d0
linux/kernel
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Mike Rapoport (IBM) 12af2b83d0 mm: introduce execmem_alloc() and execmem_free() 
module_alloc() is used everywhere as a mean to allocate memory for code.

Beside being semantically wrong, this unnecessarily ties all subsystems
that need to allocate code, such as ftrace, kprobes and BPF to modules and
puts the burden of code allocation to the modules code.

Several architectures override module_alloc() because of various
constraints where the executable memory can be located and this causes
additional obstacles for improvements of code allocation.

Start splitting code allocation from modules by introducing execmem_alloc()
and execmem_free() APIs.

Initially, execmem_alloc() is a wrapper for module_alloc() and
execmem_free() is a replacement of module_memfree() to allow updating all
call sites to use the new APIs.

Since architectures define different restrictions on placement,
permissions, alignment and other parameters for memory that can be used by
different subsystems that allocate executable memory, execmem_alloc() takes
a type argument, that will be used to identify the calling subsystem and to
allow architectures define parameters for ranges suitable for that
subsystem.

No functional changes.

Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Song Liu <song@kernel.org>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
2024-05-14 00:31:43 -07:00
..
bpf mm: introduce execmem_alloc() and execmem_free() 2024-05-14 00:31:43 -07:00
cgroup Networking changes for 6.9. 2024-03-12 17:44:08 -07:00
configs hardening updates for 6.10-rc1 2024-05-13 14:14:05 -07:00
debug kdb: Fix a potential buffer overflow in kdb_local() 2024-01-17 17:19:06 +00:00
dma swiotlb: initialise restricted pool list_head when SWIOTLB_DYNAMIC=y 2024-05-02 14:57:04 +02:00
entry entry: Respect changes to system call number by trace_sys_enter() 2024-03-12 13:23:32 +01:00
events perf/bpf: Mark perf_event_set_bpf_handler() and perf_event_free_bpf_handler() as inline too 2024-04-14 22:35:26 +02:00
futex futex: Prevent the reuse of stale pi_state 2024-01-19 12:58:17 +01:00
gcov gcov: annotate struct gcov_iterator with __counted_by 2023-10-18 14:43:22 -07:00
irq genirq: Introduce IRQF_COND_ONESHOT and use it in pinctrl-amd 2024-03-25 23:45:21 +01:00
kcsan kcsan, compiler_types: Introduce __data_racy type qualifier 2024-05-07 11:39:50 -07:00
livepatch livepatch: Fix missing newline character in klp_resolve_symbols() 2023-09-20 11:24:18 +02:00
locking locking/pvqspinlock: Use try_cmpxchg() in qspinlock_paravirt.h 2024-04-12 11:42:39 +02:00
module mm: introduce execmem_alloc() and execmem_free() 2024-05-14 00:31:43 -07:00
power PM: s2idle: Make sure CPUs will wakeup directly on resume 2024-04-08 15:36:54 +02:00
printk printk changes for 6.9-rc2 2024-03-26 09:25:57 -07:00
rcu Merge branches 'fixes.2024.04.15a', 'misc.2024.04.12a', 'rcu-sync-normal-improve.2024.04.15a', 'rcu-tasks.2024.04.15a' and 'rcutorture.2024.04.15a' into rcu-merge.2024.04.15a 2024-05-01 13:04:02 +02:00
sched Scheduler changes for v6.10: 2024-05-13 17:18:51 -07:00
time Scheduler changes for v6.10: 2024-05-13 17:18:51 -07:00
trace RCU pull request for v6.10 2024-05-13 09:49:06 -07:00
.gitignore
acct.c fs: rename __mnt_{want,drop}_write*() helpers 2023-09-11 15:05:50 +02:00
async.c async: Use a dedicated unbound workqueue with raised min_active 2024-02-09 11:13:59 -10:00
audit_fsnotify.c
audit_tree.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
audit_watch.c audit: don't WARN_ON_ONCE(!current->mm) in audit_exe_compare() 2023-11-14 17:34:27 -05:00
audit.c audit: use KMEM_CACHE() instead of kmem_cache_create() 2024-01-25 10:12:22 -05:00
audit.h audit: correct audit_filter_inodes() definition 2023-07-21 12:17:25 -04:00
auditfilter.c audit: remove unnecessary assignment in audit_dupe_lsm_field() 2024-01-25 09:59:27 -05:00
auditsc.c audit,io_uring: io_uring openat triggers audit reference count underflow 2023-10-13 18:34:46 +02:00
backtracetest.c backtracetest: Convert from tasklet to BH workqueue 2024-02-05 13:22:34 -10:00
bounds.c bounds: Use the right number of bits for power-of-two CONFIG_NR_CPUS 2024-04-29 08:29:29 -07:00
capability.c lsm: constify the 'target' parameter in security_capget() 2023-08-08 16:48:47 -04:00
cfi.c
compat.c
configs.c
context_tracking.c context_tracking: Make context_tracking_key __ro_after_init 2024-03-22 11:18:18 +01:00
cpu_pm.c
cpu.c cpu: Ignore "mitigations" kernel parameter if CPU_MITIGATIONS=n 2024-04-25 15:47:39 +02:00
crash_core.c crash: split crash dumping code out from kexec_core.c 2024-02-23 17:48:22 -08:00
crash_reserve.c crash: use macro to add crashk_res into iomem early for specific arch 2024-03-26 11:14:12 -07:00
cred.c cred: Use KMEM_CACHE() instead of kmem_cache_create() 2024-02-23 17:33:31 -05:00
delayacct.c
dma.c
elfcorehdr.c crash: remove dependency of FA_DUMP on CRASH_DUMP 2024-02-23 17:48:22 -08:00
exec_domain.c
exit.c vfs-6.9.pidfd 2024-03-11 10:21:06 -07:00
exit.h exit: add internal include file with helpers 2023-09-21 12:03:50 -06:00
extable.c
fail_function.c
fork.c fork: defer linking file vma until vma is fully initialized 2024-04-16 15:39:51 -07:00
freezer.c Linux 6.7-rc6 2023-12-23 15:52:13 +01:00
gen_kheaders.sh
groups.c groups: Convert group_info.usage to refcount_t 2023-09-29 11:28:39 -07:00
hung_task.c kernel/hung_task.c: export sysctl_hung_task_timeout_secs 2024-03-13 21:22:04 -04:00
iomem.c kernel/iomem.c: remove __weak ioremap_cache helper 2023-08-21 13:37:28 -07:00
irq_work.c
jump_label.c jump_label,module: Don't alloc static_key_mod for __ro_after_init keys 2024-03-22 11:18:16 +01:00
kallsyms_internal.h
kallsyms_selftest.c mm/vmalloc: remove vmap_area_list 2024-02-23 17:48:19 -08:00
kallsyms_selftest.h
kallsyms.c kallsyms: Change func signature for cleanup_symbol_name() 2023-08-25 15:00:36 -07:00
kcmp.c file: convert to SLAB_TYPESAFE_BY_RCU 2023-10-19 11:02:48 +02:00
Kconfig.freezer
Kconfig.hz
Kconfig.kexec crash: clean up kdump related config items 2024-02-23 17:48:22 -08:00
Kconfig.locks
Kconfig.preempt
kcov.c
kexec_core.c - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min 2024-03-14 18:03:09 -07:00
kexec_elf.c
kexec_file.c arm64, crash: wrap crash dumping code into crash related ifdefs 2024-02-23 17:48:23 -08:00
kexec_internal.h crash: remove dependency of FA_DUMP on CRASH_DUMP 2024-02-23 17:48:22 -08:00
kexec.c crash: split crash dumping code out from kexec_core.c 2024-02-23 17:48:22 -08:00
kheaders.c
kprobes.c mm: introduce execmem_alloc() and execmem_free() 2024-05-14 00:31:43 -07:00
ksyms_common.c
ksysfs.c Driver core changes for 6.9-rc1 2024-03-21 13:34:15 -07:00
kthread.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
latencytop.c
Makefile crash: split crash dumping code out from kexec_core.c 2024-02-23 17:48:22 -08:00
module_signature.c
notifier.c
nsproxy.c pidfd: add pidfs 2024-03-01 12:23:37 +01:00
numa.c kernel/numa.c: Move logging out of numa.h 2023-12-20 19:26:30 -05:00
padata.c padata: Disable BH when taking works lock on MT path 2024-04-12 15:07:51 +08:00
panic.c - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min 2024-03-14 18:03:09 -07:00
params.c params: Fix multi-line comment style 2023-12-01 09:51:44 -08:00
pid_namespace.c wait: Remove uapi header file from main header file 2023-12-20 19:26:31 -05:00
pid_sysctl.h memfd: replace ratcheting feature from vm.memfd_noexec with hierarchy 2023-08-21 13:37:59 -07:00
pid.c pidfs: remove config option 2024-03-13 12:53:53 -07:00
profile.c profiling: Remove create_prof_cpu_mask(). 2024-04-27 11:17:48 -07:00
ptrace.c ptrace_attach: shift send(SIGSTOP) into ptrace_set_stopped() 2024-02-22 15:38:52 -08:00
range.c
reboot.c Thermal control updates for 6.8-rc1 2024-01-09 16:20:17 -08:00
regset.c
relay.c kernel: relay: remove relay_file_splice_read dead code, doesn't work 2023-12-29 12:22:27 -08:00
resource_kunit.c
resource.c Quite a lot of kexec work this time around. Many singleton patches in 2024-01-09 11:46:20 -08:00
rseq.c
scftorture.c scftorture: Pause testing after memory-allocation failure 2023-07-14 15:02:57 -07:00
scs.c
seccomp.c seccomp: Constify sysctl subhelpers 2024-05-08 12:50:40 -07:00
signal.c - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min 2024-03-14 18:03:09 -07:00
smp.c CSD lock commits for v6.7 2023-10-30 17:56:53 -10:00
smpboot.c kthread: add kthread_stop_put 2023-10-04 10:41:57 -07:00
smpboot.h
softirq.c softirq: Fix suspicious RCU usage in __do_softirq() 2024-04-29 05:03:51 +02:00
stackleak.c stackleak: Use a copy of the ctl_table argument 2024-05-03 12:35:12 -07:00
stacktrace.c stacktrace: fix kernel-doc typo 2023-12-29 12:22:29 -08:00
static_call_inline.c
static_call.c
stop_machine.c
sys_ni.c lsm/stable-6.8 PR 20240105 2024-01-09 12:57:46 -08:00
sys.c prctl: generalize PR_SET_MDWE support check to be per-arch 2024-03-26 11:07:22 -07:00
sysctl-test.c
sysctl.c tracing: Support to dump instance traces by ftrace_dump_on_oops 2024-03-18 10:33:06 -04:00
task_work.c task_work: add kerneldoc annotation for 'data' argument 2023-09-19 13:21:32 -07:00
taskstats.c taskstats: fill_stats_for_tgid: use for_each_thread() 2023-10-04 10:41:57 -07:00
torture.c torture: Print out torture module parameters 2023-09-24 17:24:01 +02:00
tracepoint.c
tsacct.c
ucount.c sysctl: Add size to register_sysctl 2023-08-15 15:26:17 -07:00
uid16.c
uid16.h
umh.c
up.c smp: Change function signatures to use call_single_data_t 2023-09-13 14:59:24 +02:00
user_namespace.c user_namespace: remove unnecessary NULL values from kbuf 2024-02-22 15:38:52 -08:00
user-return-notifier.c
user.c binfmt_misc: enable sandboxed mounts 2023-10-11 08:46:01 -07:00
usermode_driver.c
utsname_sysctl.c
utsname.c
vhost_task.c
vmcore_info.c mm: turn folio_test_hugetlb into a PageType 2024-04-24 19:34:26 -07:00
watch_queue.c watch_queue: fix kcalloc() arguments order 2023-12-21 13:17:54 +01:00
watchdog_buddy.c
watchdog_perf.c
watchdog.c watchdog/core: remove sysctl handlers from public header 2024-03-12 13:09:23 -07:00
workqueue_internal.h workqueue: Drop the special locking rule for worker->flags and worker_pool->flags 2023-08-07 15:57:22 -10:00
workqueue.c Scheduler changes for v6.10: 2024-05-13 17:18:51 -07:00