Kaixu Xia 74390aa556 perf: Remove the extra validity check on nr_pages ...

The function is_power_of_2() also do the check on nr_pages, so the first
check performed is unnecessary. On the other hand, the key point is to
ensure @nr_pages is a power-of-two number and mostly @nr_pages is a
nonzero value, so in the most cases, the function is_power_of_2() will
be called.

Signed-off-by: Kaixu Xia <xiakaixu@huawei.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Link: http://lkml.kernel.org/r/1422352512-75150-1-git-send-email-xiakaixu@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2015-02-13 11:40:30 -03:00

..

bpf

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2015-01-27 13:55:36 -08:00

configs

x86: Add "make tinyconfig" to configure the tiniest possible kernel

2014-08-08 16:30:24 -07:00

debug

Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

2015-01-23 06:40:36 +12:00

events

perf: Remove the extra validity check on nr_pages

2015-02-13 11:40:30 -03:00

gcov

gcov: enable GCOV_PROFILE_ALL from ARCH Kconfigs

2014-12-13 12:42:51 -08:00

irq

genirq: Prevent proc race against freeing of irq descriptors

2014-12-13 13:33:07 +01:00

locking

mutex: Always clear owner field upon mutex_unlock()

2015-01-09 11:20:39 +01:00

power

PM: Eliminate CONFIG_PM_RUNTIME

2014-12-19 22:55:06 +01:00

printk

Merge tag 'trace-seq-buf-3.19-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2014-12-13 14:04:41 -08:00

rcu

Merge branches 'torture.2014.11.03a', 'cpu.2014.11.03a', 'doc.2014.11.13a', 'fixes.2014.11.13a', 'signal.2014.10.29a' and 'rt.2014.10.29a' into HEAD

2014-11-13 10:39:04 -08:00

sched

Merge tag 'v3.19-rc7' into perf/core, to merge fixes before applying new changes

2015-02-04 07:58:29 +01:00

time

Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2015-01-25 17:47:34 -08:00

trace

Merge branch 'perf/urgent' into perf/core, to pick up fixes

2015-01-28 15:42:56 +01:00

.gitignore

…

acct.c

acct: eliminate compile warning

2014-10-09 22:26:04 -04:00

async.c

kernel/async.c: switch to pr_foo()

2014-10-09 22:26:04 -04:00

audit_tree.c

fsnotify: unify inode and mount marks handling

2014-12-13 12:42:53 -08:00

audit_watch.c

audit: invalid op= values for rules

2014-09-23 16:37:53 -04:00

audit.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2014-12-30 10:45:47 -08:00

audit.h

audit: reduce scope of audit_log_fcaps

2014-09-23 16:37:51 -04:00

auditfilter.c

Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit

2014-12-23 18:13:16 -08:00

auditsc.c

Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit

2014-12-31 14:52:18 -08:00

backtracetest.c

kernel/backtracetest.c: replace no level printk by pr_info()

2014-06-04 16:54:14 -07:00

bounds.c

page-cgroup: get rid of NR_PCG_FLAGS

2014-08-08 15:57:18 -07:00

capability.c

CAPABILITIES: remove undefined caps from all processes

2014-07-24 21:53:47 +10:00

cgroup_freezer.c

cgroup: rename cgroup_subsys->base_cftypes to ->legacy_cftypes

2014-07-15 11:05:09 -04:00

cgroup.c

cgroup: prevent mount hang due to memory controller lifetime

2015-01-22 10:26:43 -05:00

compat.c

compat: nanosleep: Clarify error handling

2014-09-06 12:58:18 +02:00

configs.c

…

context_tracking.c

sched: stop the unbound recursion in preempt_schedule_context()

2014-10-28 10:46:05 +01:00

cpu_pm.c

…

cpu.c

cpu: Avoid puts_pending overflow

2014-11-03 19:21:01 -08:00

cpuset.c

Merge branch 'for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2014-12-11 18:57:19 -08:00

crash_dump.c

crash_dump: Make is_kdump_kernel() accessible from modules

2014-08-25 15:42:19 -07:00

cred.c

…

delayacct.c

delayacct: Remove braindamaged type conversions

2014-07-23 10:18:06 -07:00

dma.c

…

elfcore.c

…

exec_domain.c

kernel/exec_domain.c: code clean-up

2014-06-04 16:54:15 -07:00

exit.c

exit: fix race between wait_consider_task() and wait_task_zombie()

2015-01-08 15:10:51 -08:00

extable.c

ftrace/x86/extable: Add is_ftrace_trampoline() function

2014-11-19 15:25:26 -05:00

fork.c

mm: use new helper functions around the i_mmap_mutex

2014-12-13 12:42:45 -08:00

freezer.c

freezer: remove obsolete comments in __thaw_task()

2014-10-21 23:44:20 +02:00

futex_compat.c

compat: Get rid of (get|put)_compat_time(val|spec)

2014-02-02 14:09:12 -08:00

futex.c

futex: Fix a race condition between REQUEUE_PI and task death

2014-10-26 16:16:18 +01:00

groups.c

userns: Don't allow setgroups until a gid mapping has been setablished

2014-12-09 16:58:40 -06:00

hung_task.c

kernel/hung_task.c: convert simple_strtoul to kstrtouint

2014-06-04 16:54:15 -07:00

irq_work.c

percpu: Convert remaining __get_cpu_var uses in 3.18-rcX

2014-10-29 11:18:18 -04:00

jump_label.c

…

kallsyms.c

kernel/kallsyms.c: use __seq_open_private()

2014-10-14 02:18:16 +02:00

kcmp.c

kcmp: fix standard comparison bug

2014-09-10 15:42:12 -07:00

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.locks

locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER

2014-07-16 14:57:13 +02:00

Kconfig.preempt

…

kexec.c

kexec: remove unnecessary KERN_ERR from kexec.c

2014-12-13 12:42:51 -08:00

kmod.c

usermodehelper: kill the kmod_thread_locker logic

2014-12-10 17:41:17 -08:00

kprobes.c

module: remove mod arg from module_free, rename module_memfree().

2015-01-20 11:38:33 +10:30

ksysfs.c

kobject: Make support for uevent_helper optional.

2014-04-25 12:00:49 -07:00

kthread.c

kernel/kthread.c: partial revert of 81c98869fa ("kthread: ensure locality of task_struct allocations")

2014-10-09 22:25:51 -04:00

latencytop.c

kernel/latencytop.c: convert seq_printf to seq_puts

2014-06-04 16:54:15 -07:00

Makefile

kernel: res_counter: remove the unused API

2014-12-10 17:41:04 -08:00

module_signing.c

…

module-internal.h

…

module.c

module: make module_refcount() a signed integer.

2015-01-22 11:15:54 +10:30

notifier.c

kprobes, notifier: Use NOKPROBE_SYMBOL macro in notifier

2014-04-24 10:26:39 +02:00

nsproxy.c

bury struct proc_ns in fs/proc

2014-12-04 14:34:54 -05:00

padata.c

…

panic.c

kernel: add panic_on_warn

2014-12-10 17:41:10 -08:00

params.c

param: fix uninitialized read with CONFIG_DEBUG_LOCK_ALLOC

2015-01-20 11:38:31 +10:30

pid_namespace.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-12-16 15:53:03 -08:00

pid.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-12-16 15:53:03 -08:00

profile.c

kernel/profile.c: use static const char instead of static char

2014-06-06 16:08:13 -07:00

ptrace.c

exit: ptrace: shift "reap dead" code from exit_ptrace() to forget_original_parent()

2014-12-10 17:41:10 -08:00

range.c

kernel: avoid overflow in cmp_range

2015-01-17 10:02:23 +13:00

reboot.c

kernel: add support for kernel restart handler call chain

2014-09-26 00:00:06 -07:00

relay.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-04-12 14:49:50 -07:00

resource.c

x86: optimize resource lookups for ioremap

2014-10-14 02:18:22 +02:00

seccomp.c

Merge branch 'x86-seccomp-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-10-14 02:27:06 +02:00

signal.c

Merge branch 'x86-mpx-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-12-10 09:34:43 -08:00

smp.c

Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

2014-10-15 07:48:18 +02:00

smpboot.c

sched, smp: Correctly deal with nested sleeps

2014-10-28 10:56:24 +01:00

smpboot.h

…

softirq.c

rcu: Remove "cpu" argument to rcu_note_context_switch()

2014-11-03 19:20:34 -08:00

stacktrace.c

stacktrace: introduce snprint_stack_trace for buffer output

2014-12-13 12:42:48 -08:00

stop_machine.c

kernel/stop_machine.c: kernel-doc warning fix

2014-06-04 16:54:15 -07:00

sys_ni.c

syscalls: implement execveat() system call

2014-12-13 12:42:51 -08:00

sys.c

x86, mpx: Strictly enforce empty prctl() args

2015-01-22 21:11:06 +01:00

sysctl_binary.c

kernel: add panic_on_warn

2014-12-10 17:41:10 -08:00

sysctl.c

Merge tag 'trace-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2014-12-16 12:53:59 -08:00

system_certificates.S

…

system_keyring.c

KEYS: validate certificate trust only with builtin keys

2014-07-17 09:35:17 -04:00

task_work.c

…

taskstats.c

kill f_dentry uses

2014-11-19 13:01:25 -05:00

test_kprobes.c

kernel/test_kprobes.c: use current logging functions

2014-08-08 15:57:18 -07:00

torture.c

torture: Address race in module cleanup

2014-09-16 13:41:06 -07:00

tracepoint.c

tracing: syscall_regfunc() should not skip kernel threads

2014-06-21 00:15:26 -04:00

tsacct.c

sched: Make task->start_time nanoseconds based

2014-07-23 10:18:05 -07:00

uid16.c

groups: Consolidate the setgroups permission checks

2014-12-05 17:19:27 -06:00

up.c

smp: Rename __smp_call_function_single() to smp_call_function_single_async()

2014-02-24 14:47:15 -08:00

user_namespace.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2014-12-17 12:31:40 -08:00

user-return-notifier.c

scheduler: Replace __get_cpu_var with this_cpu_ptr

2014-08-26 13:45:45 -04:00

user.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2014-12-17 12:31:40 -08:00

utsname_sysctl.c

sysctl: convert use of typedef ctl_table to struct ctl_table

2014-06-06 16:08:16 -07:00

utsname.c

copy address of proc_ns_ops into ns_common

2014-12-04 14:34:47 -05:00

watchdog.c

Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

2014-10-15 07:48:18 +02:00

workqueue_internal.h

workqueue: rename manager_mutex to attach_mutex

2014-05-20 10:59:32 -04:00

workqueue.c

workqueue: fix subtle pool management issue which can stall whole worker_pool

2015-01-16 14:21:16 -05:00