Zhen Lei 6f22a744f4 kexec: delete a useless check in crash_shrink_memory() ...

The check '(crashk_res.parent != NULL)' is added by commit e05bd3367b
("kexec: fix Oops in crash_shrink_memory()"), but it's stale now.  Because
if 'crashk_res' is not reserved, it will be zero in size and will be
intercepted by the above 'if (new_size >= old_size)'.

Ago:
	if (new_size >= end - start + 1)

Now:
	old_size = (end == 0) ? 0 : end - start + 1;
	if (new_size >= old_size)

Link: https://lkml.kernel.org/r/20230527123439.772-3-thunder.leizhen@huawei.com
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Cong Wang <amwang@redhat.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

2023-06-09 17:44:23 -07:00

..

bpf

bpf: fix a memory leak in the LRU and LRU_PERCPU hash maps

2023-05-22 10:26:39 -07:00

cgroup

Merge tag 'cgroup-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2023-04-29 10:05:22 -07:00

configs

Merge tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2023-04-27 12:07:50 -07:00

debug

kdb: use srcu console list iterator

2022-12-02 11:25:00 +01:00

dma

Merge tag 'dma-mapping-6.4-2023-04-28' of git://git.infradead.org/users/hch/dma-mapping

2023-04-29 10:29:57 -07:00

entry

ptrace: Provide set/get interface for syscall user dispatch

2023-04-16 14:23:07 +02:00

events

perf/core: Fix perf_sample_data not properly initialized for different swevents in perf_tp_event()

2023-05-08 10:58:26 +02:00

futex

Merge tag 'locking_urgent_for_v6.2_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2023-01-01 11:15:05 -08:00

gcov

gcov: add support for checksum field

2022-12-21 14:31:52 -08:00

irq

Merge tag 'for-linus-6.4-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

2023-05-27 09:42:56 -07:00

kcsan

Merge tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2023-04-27 19:42:02 -07:00

livepatch

Merge tag 'sched-core-2023-04-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2023-04-28 14:53:30 -07:00

locking

locking: add lockevent_read() prototype

2023-06-09 17:44:15 -07:00

module

module: error out early on concurrent load of the same module file

2023-05-25 17:07:57 -07:00

power

Merge tag 'pm-6.4-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2023-05-03 12:01:05 -07:00

printk

Merge tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2023-04-27 19:42:02 -07:00

rcu

Merge tag 'rcu.6.4.april5.2023.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux

2023-04-24 12:16:14 -07:00

sched

sched: fix cid_lock kernel-doc warnings

2023-05-08 10:58:28 +02:00

time

tick/broadcast: Make broadcast device replacement work correctly

2023-05-08 23:18:16 +02:00

trace

fprobe: add recursion detection in fprobe_exit_handler

2023-05-18 07:08:01 +09:00

.gitignore

…

acct.c

acct: fix potential integer overflow in encode_comp_t()

2022-11-30 16:13:18 -08:00

async.c

…

audit_fsnotify.c

audit: fix potential double free on error path from fsnotify_add_inode_mark

2022-08-22 18:50:06 -04:00

audit_tree.c

audit: use fsnotify group lock helpers

2022-04-25 14:37:28 +02:00

audit_watch.c

audit_init_parent(): constify path

2022-09-01 17:39:30 -04:00

audit.c

audit: use time_after to compare time

2022-08-29 19:47:03 -04:00

audit.h

audit: remove selinux_audit_rule_update() declaration

2022-09-07 11:30:15 -04:00

auditfilter.c

…

auditsc.c

capability: just use a 'u64' instead of a 'u32[2]' array

2023-03-01 10:01:22 -08:00

backtracetest.c

…

bounds.c

mm: multi-gen LRU: minimal implementation

2022-09-26 19:46:09 -07:00

capability.c

capability: just use a 'u64' instead of a 'u32[2]' array

2023-03-01 10:01:22 -08:00

cfi.c

cfi: Switch to -fsanitize=kcfi

2022-09-26 10:13:13 -07:00

compat.c

sched_getaffinity: don't assume 'cpumask_size()' is fully initialized

2023-03-14 19:32:38 -07:00

configs.c

…

context_tracking.c

context_tracking: Fix noinstr vs KASAN

2023-01-13 11:48:18 +01:00

cpu_pm.c

cpuidle, cpu_pm: Remove RCU fiddling from cpu_pm_{enter,exit}()

2023-01-13 11:48:15 +01:00

cpu.c

Merge tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2023-04-27 19:42:02 -07:00

crash_core.c

mm, treewide: redefine MAX_ORDER sanely

2023-04-05 19:42:46 -07:00

crash_dump.c

…

cred.c

cred: Do not default to init_cred in prepare_kernel_cred()

2022-11-01 10:04:52 -07:00

delayacct.c

delayacct: track delays from IRQ/SOFTIRQ

2023-04-18 16:39:34 -07:00

dma.c

…

exec_domain.c

…

exit.c

Merge tag 'trace-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

2023-04-28 15:57:53 -07:00

extable.c

context_tracking: Take NMI eqs entrypoints over RCU

2022-07-05 13:32:59 -07:00

fail_function.c

kernel/fail_function: fix memory leak with using debugfs_lookup()

2023-02-08 13:36:22 +01:00

fork.c

fork: optimize memcg_charge_kernel_stack() a bit

2023-06-09 17:44:13 -07:00

freezer.c

freezer,sched: Rewrite core freezer logic

2022-09-07 21:53:50 +02:00

gen_kheaders.sh

kheaders: use standard naming for the temporary directory

2023-01-22 23:43:34 +09:00

groups.c

security: Add LSM hook to setgroups() syscall

2022-07-15 18:21:49 +00:00

hung_task.c

kernel/hung_task.c: set some hung_task.c variables storage-class-specifier to static

2023-04-08 13:45:37 -07:00

iomem.c

…

irq_work.c

trace: Add trace_ipi_send_cpu()

2023-03-24 11:01:29 +01:00

jump_label.c

jump_label: Prevent key->enabled int overflow

2022-12-01 15:53:05 -08:00

kallsyms_internal.h

kallsyms: Reduce the memory occupied by kallsyms_seqs_of_names[]

2022-11-12 18:47:36 -08:00

kallsyms_selftest.c

kallsyms: Delete an unused parameter related to {module_}kallsyms_on_each_symbol()

2023-03-19 13:27:19 -07:00

kallsyms_selftest.h

kallsyms: Add self-test facility

2022-11-15 00:42:02 -08:00

kallsyms.c

kallsyms: Delete an unused parameter related to {module_}kallsyms_on_each_symbol()

2023-03-19 13:27:19 -07:00

kcmp.c

…

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.locks

…

Kconfig.preempt

…

kcov.c

kcov: add prototypes for helper functions

2023-06-09 17:44:17 -07:00

kexec_core.c

kexec: delete a useless check in crash_shrink_memory()

2023-06-09 17:44:23 -07:00

kexec_elf.c

…

kexec_file.c

kexec: avoid calculating array size twice

2023-06-09 17:44:22 -07:00

kexec_internal.h

panic, kexec: make __crash_kexec() NMI safe

2022-09-11 21:55:06 -07:00

kexec.c

kexec: introduce sysctl parameters kexec_load_limit_*

2023-02-02 22:50:05 -08:00

kheaders.c

kheaders: Use array declaration instead of char

2023-03-24 20:10:59 -07:00

kprobes.c

x86/kprobes: Fix arch_check_optimized_kprobe check within optimized_kprobe range

2023-02-21 08:49:16 +09:00

ksysfs.c

kernel/ksysfs.c: use sysfs_emit for sysfs show handlers

2023-03-24 17:09:14 +01:00

kthread.c

kthread: fix spelling typo and grammar in comments

2023-06-09 17:44:12 -07:00

latencytop.c

latencytop: use the last element of latency_record of system

2022-09-11 21:55:12 -07:00

Makefile

watchdog/hardlockup: detect hard lockups using secondary (buddy) CPUs

2023-06-09 17:44:21 -07:00

module_signature.c

…

notifier.c

notifiers: add tracepoints to the notifiers infrastructure

2023-04-08 13:45:38 -07:00

nsproxy.c

convert setns(2) to fdget()/fdput()

2023-04-20 22:55:35 -04:00

padata.c

padata: use alignment when calculating the number of worker threads

2023-03-14 17:06:44 +08:00

panic.c

panic: hide unused global functions

2023-06-09 17:44:15 -07:00

params.c

module: make module_ktype structure constant

2023-03-09 12:55:15 -08:00

pid_namespace.c

kernel: pid_namespace: simplify sysctls with register_sysctl()

2023-05-02 19:23:29 -07:00

pid_sysctl.h

kernel: pid_namespace: simplify sysctls with register_sysctl()

2023-05-02 19:23:29 -07:00

pid.c

pid: add pidfd_prepare()

2023-04-03 11:16:56 +02:00

profile.c

kernel/profile.c: simplify duplicated code in profile_setup()

2022-09-11 21:55:12 -07:00

ptrace.c

ptrace: Provide set/get interface for syscall user dispatch

2023-04-16 14:23:07 +02:00

range.c

…

reboot.c

kernel/reboot: Add SYS_OFF_MODE_RESTART_PREPARE mode

2022-10-04 15:59:36 +02:00

regset.c

…

relay.c

relayfs: fix out-of-bounds access in relay_file_read

2023-05-02 17:23:27 -07:00

resource_kunit.c

…

resource.c

dax/kmem: Fix leak of memory-hotplug resources

2023-02-17 14:58:01 -08:00

rseq.c

rseq: Extend struct rseq with per-memory-map concurrency ID

2022-12-27 12:52:12 +01:00

scftorture.c

…

scs.c

scs: add support for dynamic shadow call stacks

2022-11-09 18:06:35 +00:00

seccomp.c

seccomp: simplify sysctls with register_sysctl_init()

2023-04-13 11:49:20 -07:00

signal.c

posix-timers: Prefer delivery of signals to the current thread

2023-04-16 09:00:18 +02:00

smp.c

trace,smp: Trace all smp_function_call*() invocations

2023-03-24 11:01:30 +01:00

smpboot.c

smpboot: use atomic_try_cmpxchg in cpu_wait_death and cpu_report_death

2022-09-11 21:55:10 -07:00

smpboot.h

…

softirq.c

softirq: Add trace points for tasklet entry/exit

2023-04-15 10:17:16 +02:00

stackleak.c

stackleak: allow to specify arch specific stackleak poison function

2023-04-20 11:36:35 +02:00

stacktrace.c

…

static_call_inline.c

static_call: Add call depth tracking support

2022-10-17 16:41:16 +02:00

static_call.c

…

stop_machine.c

Merge tag 'sched-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2022-05-24 11:11:13 -07:00

sys_ni.c

kernel/sys_ni: add compat entry for fadvise64_64

2022-08-20 15:17:45 -07:00

sys.c

mm/ksm: unmerge and clear VM_MERGEABLE when setting PR_SET_MEMORY_MERGE=0

2023-05-02 17:21:49 -07:00

sysctl-test.c

kernel/sysctl-test: use SYSCTL_{ZERO/ONE_HUNDRED} instead of i_{zero/one_hundred}

2022-09-08 16:56:45 -07:00

sysctl.c

mm: compaction: move compaction sysctl to its own file

2023-04-13 11:49:35 -07:00

task_work.c

task_work: use try_cmpxchg in task_work_add, task_work_cancel_match and task_work_run

2022-09-11 21:55:10 -07:00

taskstats.c

genetlink: start to validate reserved header bytes

2022-08-29 12:47:15 +01:00

torture.c

torture: Fix hang during kthread shutdown phase

2023-01-05 12:10:35 -08:00

tracepoint.c

tracepoint: Allow livepatch module add trace event

2023-02-18 14:34:36 -05:00

tsacct.c

taskstats: version 12 with thread group and exe info

2022-04-29 14:38:03 -07:00

ucount.c

ucounts: Split rlimit and ucount values and max values

2022-05-18 18:24:57 -05:00

uid16.c

…

uid16.h

…

umh.c

umh: simplify the capability pointer logic

2023-03-03 16:18:19 -08:00

up.c

…

user_namespace.c

userns: fix a struct's kernel-doc notation

2023-02-02 22:50:04 -08:00

user-return-notifier.c

…

user.c

kernel/user: Allow user_struct::locked_vm to be usable for iommufd

2022-11-30 20:16:49 -04:00

usermode_driver.c

blob_to_mnt(): kern_unmount() is needed to undo kern_mount()

2022-05-19 23:25:47 -04:00

utsname_sysctl.c

utsname: simplify one-level sysctl registration for uts_kern_table

2023-04-13 11:49:35 -07:00

utsname.c

…

vhost_task.c

vhost_task: Allow vhost layer to use copy_process

2023-03-23 12:45:36 +01:00

watch_queue.c

Merge tag 'modules-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux

2023-04-27 16:36:55 -07:00

watchdog_buddy.c

watchdog/hardlockup: detect hard lockups using secondary (buddy) CPUs

2023-06-09 17:44:21 -07:00

watchdog_perf.c

watchdog/perf: add a weak function for an arch to detect if perf can use NMIs

2023-06-09 17:44:21 -07:00

watchdog.c

watchdog/perf: adapt the watchdog_perf interface for async model

2023-06-09 17:44:21 -07:00

workqueue_internal.h

…

workqueue.c

Merge tag 'wq-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

2023-04-29 09:48:52 -07:00