Alexey Dobriyan 9b130ad5bb treewide: make "nr_cpu_ids" unsigned ... First, number of CPUs can't be negative number. Second, different signnnedness leads to suboptimal code in the following cases: 1) kmalloc(nr_cpu_ids * sizeof(X)); "int" has to be sign extended to size_t. 2) while (loff_t *pos < nr_cpu_ids) MOVSXD is 1 byte longed than the same MOV. Other cases exist as well. Basically compiler is told that nr_cpu_ids can't be negative which can't be deduced if it is "int". Code savings on allyesconfig kernel: -3KB add/remove: 0/0 grow/shrink: 25/264 up/down: 261/-3631 (-3370) function old new delta coretemp_cpu_online 450 512 +62 rcu_init_one 1234 1272 +38 pci_device_probe 374 399 +25 ... pgdat_reclaimable_pages 628 556 -72 select_fallback_rq 446 369 -77 task_numa_find_cpu 1923 1807 -116 Link: http://lkml.kernel.org/r/20170819114959.GA30580@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2017-09-08 18:26:48 -07:00
..
bpf	bpf: fix numa_node validation	2017-09-05 09:10:02 -07:00
cgroup	Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block	2017-09-07 11:59:42 -07:00
configs	ANDROID: binder: add hwbinder,vndbinder to BINDER_DEVICES.	2017-08-22 18:43:23 -07:00
debug	…
events	Merge branch 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2017-09-06 22:25:25 -07:00
gcov	…
irq	Device properties framework updates for v4.14-rc1	2017-09-05 12:50:00 -07:00
livepatch	…
locking	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-09-04 11:52:29 -07:00
power	Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block	2017-09-07 11:59:42 -07:00
printk	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk	2017-09-07 21:00:52 -07:00
rcu	treewide: make "nr_cpu_ids" unsigned	2017-09-08 18:26:48 -07:00
sched	treewide: make "nr_cpu_ids" unsigned	2017-09-08 18:26:48 -07:00
time	Power management updates for v4.14-rc1	2017-09-05 12:19:08 -07:00
trace	treewide: make "nr_cpu_ids" unsigned	2017-09-08 18:26:48 -07:00
.gitignore	…
Kconfig.freezer	…
Kconfig.hz	…
Kconfig.locks	…
Kconfig.preempt	…
Makefile	membarrier: Provide expedited private command	2017-08-17 07:28:05 -07:00
acct.c	…
async.c	…
audit.c	audit: update the function comments	2017-09-05 09:46:59 -04:00
audit.h	…
audit_fsnotify.c	…
audit_tree.c	…
audit_watch.c	audit/stable-4.13 PR 20170816	2017-08-16 16:48:34 -07:00
auditfilter.c	…
auditsc.c	audit: update the function comments	2017-09-05 09:46:59 -04:00
backtracetest.c	…
bounds.c	…
capability.c	…
compat.c	…
configs.c	…
context_tracking.c	…
cpu.c	Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-09-04 13:53:53 -07:00
cpu_pm.c	PM / CPU: replace raw_notifier with atomic_notifier	2017-07-31 13:09:49 +02:00
crash_core.c	…
crash_dump.c	…
cred.c	…
delayacct.c	…
dma.c	…
elfcore.c	…
exec_domain.c	…
exit.c	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-09-04 11:52:29 -07:00
extable.c	…
fork.c	mm/hmm: heterogeneous memory management (HMM for short)	2017-09-08 18:26:45 -07:00
freezer.c	…
futex.c	futex: Remove duplicated code and fix undefined behaviour	2017-08-25 22:49:59 +02:00
futex_compat.c	…
groups.c	…
hung_task.c	…
irq_work.c	…
jump_label.c	jump_label: Provide hotplug context variants	2017-08-10 12:28:59 +02:00
kallsyms.c	…
kcmp.c	…
kcov.c	…
kexec.c	…
kexec_core.c	x86/mm, kexec: Allow kexec to be used with SME	2017-07-18 11:38:04 +02:00
kexec_file.c	…
kexec_internal.h	…
kmod.c	kmod: fix wait on recursive loop	2017-08-18 15:32:01 -07:00
kprobes.c	…
ksysfs.c	…
kthread.c	kernel/kthread.c: kthread_worker: don't hog the cpu	2017-08-31 16:33:15 -07:00
latencytop.c	…
memremap.c	mm/device-public-memory: device memory cache coherent with CPU	2017-09-08 18:26:46 -07:00
module-internal.h	…
module.c	…
module_signing.c	…
notifier.c	…
nsproxy.c	…
padata.c	…
panic.c	locking/refcounts, x86/asm: Implement fast refcount overflow protection	2017-08-17 10:40:26 +02:00
params.c	…
pid.c	pids: make task_tgid_nr_ns() safe	2017-08-21 12:47:31 -07:00
pid_namespace.c	…
profile.c	…
ptrace.c	…
range.c	…
reboot.c	…
relay.c	…
resource.c	…
seccomp.c	…
signal.c	signal: don't remove SIGNAL_UNKILLABLE for traced tasks.	2017-08-18 15:32:02 -07:00
smp.c	treewide: make "nr_cpu_ids" unsigned	2017-09-08 18:26:48 -07:00
smpboot.c	…
smpboot.h	…
softirq.c	…
stacktrace.c	…
stop_machine.c	…
sys.c	…
sys_ni.c	…
sysctl.c	…
sysctl_binary.c	…
task_work.c	task_work: Replace spin_unlock_wait() with lock/unlock pair	2017-07-25 10:08:58 -07:00
taskstats.c	…
test_kprobes.c	…
torture.c	torture: Fix typo suppressing CPU-hotplug statistics	2017-07-25 13:04:45 -07:00
tracepoint.c	…
tsacct.c	…
ucount.c	…
uid16.c	…
up.c	smp: Avoid using two cache lines for struct call_single_data	2017-08-29 15:14:38 +02:00
user-return-notifier.c	…
user.c	…
user_namespace.c	…
utsname.c	…
utsname_sysctl.c	…
watchdog.c	kernel/watchdog: Prevent false positives with turbo modes	2017-08-18 12:35:02 +02:00
watchdog_hld.c	kernel/watchdog: Prevent false positives with turbo modes	2017-08-18 12:35:02 +02:00
workqueue.c	Merge branch 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2017-09-06 21:59:31 -07:00
workqueue_internal.h	…