Oleg Nesterov e2336f6e51 sched: Kill task_preempt_count() ... task_preempt_count() is pointless if preemption counter is per-cpu, currently this is x86 only. It is only valid if the task is not running, and even in this case the only info it can provide is the state of PREEMPT_ACTIVE bit. Change its single caller to check p->on_rq instead, this should be the same if p->state != TASK_RUNNING, and kill this helper. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Kirill Tkhai <tkhai@yandex.ru> Cc: Alexander Graf <agraf@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Lameter <cl@linux.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: linux-arch@vger.kernel.org Link: http://lkml.kernel.org/r/20141008183348.GC17495@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2014-10-28 10:47:56 +01:00
..
bitops	arch: Mass conversion of smp_mb__*()	2014-04-18 14:20:48 +02:00
4level-fixup.h
atomic64.h	locking,arch: Rewrite generic atomic support	2014-08-14 12:48:14 +02:00
atomic-long.h
atomic.h	locking,arch: Use ACCESS_ONCE() instead of cast to volatile in atomic_read()	2014-10-03 06:06:23 +02:00
audit_change_attr.h	audit: Modify a set of system calls in audit class definitions	2014-01-17 17:01:46 -05:00
audit_dir_write.h
audit_read.h
audit_signal.h
audit_write.h	audit: Modify a set of system calls in audit class definitions	2014-01-17 17:01:46 -05:00
barrier.h	arch: Prepare for smp_mb__{before,after}_atomic()	2014-04-18 11:40:30 +02:00
bitops.h	arch: Prepare for smp_mb__{before,after}_atomic()	2014-04-18 11:40:30 +02:00
bitsperlong.h
bug.h	bug: Make BUG() always stop the machine	2014-04-07 16:36:10 -07:00
bugs.h
cache.h
cacheflush.h
checksum.h
clkdev.h	asm-generic: COMMON_CLK defines __clk_{get,put}	2014-09-25 18:00:45 -07:00
cmpxchg-local.h	LLVMLinux: Remove warning about returning an uninitialized variable	2014-04-09 13:44:35 -07:00
cmpxchg.h	asm-generic: move cmpxchg*_local defs to cmpxchg.h	2013-03-13 06:11:05 +01:00
cputime_jiffies.h	sched, time: Fix build error with 64 bit cputime_t on 32 bit systems	2014-10-03 05:46:55 +02:00
cputime_nsecs.h	sched, time: Fix build error with 64 bit cputime_t on 32 bit systems	2014-10-03 05:46:55 +02:00
cputime.h
current.h
delay.h
device.h
div64.h
dma-coherent.h	DMA-API: Change dma_declare_coherent_memory() CPU address to phys_addr_t	2014-05-20 16:55:23 -06:00
dma-contiguous.h	asm-generic: Add dma-contiguous.h	2014-09-22 13:35:51 +02:00
dma-mapping-broken.h
dma-mapping-common.h	Merge branch 'for-v3.18' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping	2014-10-10 16:56:08 -04:00
dma.h
early_ioremap.h	mm: create generic early_ioremap() support	2014-04-07 16:36:15 -07:00
emergency-restart.h
exec.h
fb.h
fixmap.h	arm64: fixmap: fix missing sub-page offset for earlyprintk	2014-05-03 22:20:31 +01:00
ftrace.h
futex.h
getorder.h
gpio.h	gpio: Increase ARCH_NR_GPIOs to 512	2014-09-23 17:51:39 +02:00
hardirq.h
hash.h	lib: hash: follow-up fixups for arch hash	2013-12-19 00:14:53 -05:00
hugetlb.h	mm: Fix generic hugetlb pte check return type.	2013-10-02 20:02:35 -04:00
hw_irq.h
ide_iops.h
int-ll64.h
io-64-nonatomic-hi-lo.h	readq/writeq: Add explicit lo_hi_[read|write]_q and hi_lo_[read|write]_q	2014-07-04 13:27:30 +02:00
io-64-nonatomic-lo-hi.h	readq/writeq: Add explicit lo_hi_[read|write]_q and hi_lo_[read|write]_q	2014-07-04 13:27:30 +02:00
io.h	asm-generic/io.h: Fix ioport_map() for !CONFIG_GENERIC_IOMAP	2014-09-30 09:42:44 -06:00
ioctl.h	include/asm-generic/ioctl.h: fix _IOC_TYPECHECK sparse error	2014-06-06 16:08:13 -07:00
iomap.h	Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAP	2014-04-07 16:36:11 -07:00
irq_regs.h
irq_work.h	irq_work: Introduce arch_irq_work_has_interrupt()	2014-09-13 18:38:07 +02:00
irq.h
irqflags.h
Kbuild.asm
kdebug.h
kmap_types.h
kvm_para.h	KVM: add kvm_para_available to asm-generic/kvm_para.h	2013-06-05 13:21:29 +03:00
libata-portmap.h
linkage.h
local64.h
local.h
mcs_spinlock.h	locking/mcs: Allow architecture specific asm files to be used for contended case	2014-02-09 21:18:52 +01:00
memory_model.h	__page_to_pfn: Fix typo in comment	2013-10-14 15:28:29 +02:00
mm_hooks.h
mmu_context.h
mmu.h
module.h
mutex-dec.h	arch: Make __mutex_fastpath_lock_retval return whether fastpath succeeded or not	2013-06-26 12:10:55 +02:00
mutex-null.h	arch: Make __mutex_fastpath_lock_retval return whether fastpath succeeded or not	2013-06-26 12:10:55 +02:00
mutex-xchg.h	arch: Make __mutex_fastpath_lock_retval return whether fastpath succeeded or not	2013-06-26 12:10:55 +02:00
mutex.h
page.h
param.h
parport.h
pci_iomap.h
pci-bridge.h
pci-dma-compat.h	pci-dma-compat: add pci_zalloc_consistent helper	2014-08-08 15:57:28 -07:00
pci.h
percpu.h	percpu: preffity percpu header files	2014-06-17 19:12:40 -04:00
pgalloc.h
pgtable-nopmd.h
pgtable-nopud.h
pgtable.h	mm: softdirty: enable write notifications on VMAs after VM_SOFTDIRTY cleared	2014-10-14 02:18:28 +02:00
preempt.h	sched: Kill task_preempt_count()	2014-10-28 10:47:56 +01:00
ptrace.h
qrwlock_types.h	locking/rwlocks: Introduce 'qrwlocks' - fair, queued rwlocks	2014-06-06 07:58:28 +02:00
qrwlock.h	locking/rwlocks: Introduce 'qrwlocks' - fair, queued rwlocks	2014-06-06 07:58:28 +02:00
resource.h	asm-generic: remove _STK_LIM_MAX	2014-05-15 00:32:09 +01:00
rtc.h
rwsem.h	asm-generic: rwsem: de-PPCify rwsem.h	2014-03-14 18:02:08 +00:00
scatterlist.h
sections.h	nosave: consolidate __nosave_{begin,end} in <asm/sections.h>	2014-10-09 22:26:04 -04:00
segment.h
serial.h
siginfo.h	constify copy_siginfo_to_user{,32}()	2013-11-09 00:16:29 -05:00
signal.h
simd.h	crypto: create generic version of ablk_helper	2013-09-24 06:02:24 +10:00
sizes.h
spinlock.h
statfs.h
string.h
switch_to.h
syscall.h	syscall.h: fix doc text for syscall_get_arch()	2014-09-23 16:20:00 -04:00
syscalls.h
termios-base.h
termios.h
timex.h
tlb.h	Fix TLB gather virtual address range invalidation corner cases	2013-08-16 08:52:46 -07:00
tlbflush.h
topology.h
trace_clock.h
uaccess-unaligned.h
uaccess.h	asm-generic: uaccess: Spelling s/a ny/any/	2014-01-02 10:45:23 +01:00
unaligned.h	asm-generic: allow generic unaligned access if the arch supports it	2014-05-08 10:22:23 +02:00
unistd.h	We get rid of the general module prefix confusion with a binary config option,	2013-05-05 10:58:06 -07:00
user.h
vga.h
vmlinux.lds.h	ARM: 8168/1: extend __init_end to a page align address	2014-10-02 21:28:16 +01:00
vtime.h	include/asm-generic/vtime.h: avoid zero-length file	2013-09-30 14:31:02 -07:00
word-at-a-time.h	word-at-a-time: simplify big-endian zero_bytemask macro	2014-05-01 08:57:44 -07:00
xor.h