Hannes Frederic Sowa e5a2c89995 fast_hash: avoid indirect function calls ... By default the arch_fast_hash hashing function pointers are initialized to jhash(2). If during boot-up a CPU with SSE4.2 is detected they get updated to the CRC32 ones. This dispatching scheme incurs a function pointer lookup and indirect call for every hashing operation. rhashtable as a user of arch_fast_hash e.g. stores pointers to hashing functions in its structure, too, causing two indirect branches per hashing operation. Using alternative_call we can get away with one of those indirect branches. Acked-by: Daniel Borkmann <dborkman@redhat.com> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2014-11-05 22:01:21 -05:00
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bitops	…
4level-fixup.h	…
Kbuild.asm	…
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
atomic64.h	locking,arch: Rewrite generic atomic support	2014-08-14 12:48:14 +02:00
audit_change_attr.h	…
audit_dir_write.h	…
audit_read.h	…
audit_signal.h	…
audit_write.h	…
barrier.h	…
bitops.h	…
bitsperlong.h	…
bug.h	…
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	…
cmpxchg.h	…
cputime.h	…
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
current.h	…
delay.h	…
device.h	…
div64.h	…
dma-coherent.h	…
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	…
emergency-restart.h	…
exec.h	…
fb.h	…
fixmap.h	…
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	fast_hash: avoid indirect function calls	2014-11-05 22:01:21 -05:00
hugetlb.h	…
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	…
irq.h	…
irq_regs.h	…
irq_work.h	irq_work: Introduce arch_irq_work_has_interrupt()	2014-09-13 18:38:07 +02:00
irqflags.h	…
kdebug.h	…
kmap_types.h	…
kvm_para.h	…
libata-portmap.h	…
linkage.h	…
local.h	…
local64.h	…
mcs_spinlock.h	…
memory_model.h	…
mm_hooks.h	…
mmu.h	…
mmu_context.h	…
module.h	…
mutex-dec.h	…
mutex-null.h	…
mutex-xchg.h	…
mutex.h	…
page.h	…
param.h	…
parport.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	…
pci_iomap.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	…
ptrace.h	…
qrwlock.h	…
qrwlock_types.h	…
resource.h	…
rtc.h	…
rwsem.h	…
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	…
signal.h	…
simd.h	…
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	…
tlbflush.h	…
topology.h	…
trace_clock.h	…
uaccess-unaligned.h	…
uaccess.h	…
unaligned.h	…
unistd.h	…
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	…
word-at-a-time.h	…
xor.h	…