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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alpha	Merge git://git.infradead.org/users/eparis/audit	2014-10-19 16:25:56 -07:00
arc	The "weak" attribute is commonly used for the default version of a	2014-10-23 15:04:27 -07:00
arm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-11-01 14:53:27 -04:00
arm64	arm64 fixes:	2014-10-24 12:48:04 -07:00
avr32	Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma	2014-10-18 18:11:04 -07:00
blackfin	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
c6x	irq_work: Introduce arch_irq_work_has_interrupt()	2014-09-13 18:38:07 +02:00
cris	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-13 16:23:15 +02:00
frv	frv: remove unused declarations of __start___ex_table and __stop___ex_table	2014-10-14 02:18:28 +02:00
hexagon	Merge branch 'locking-arch-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-13 15:48:00 +02:00
ia64	Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-23 14:45:09 -07:00
m32r	Merge branch 'locking-arch-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-13 15:48:00 +02:00
m68k	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu	2014-10-14 03:51:22 +02:00
metag	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
microblaze	microblaze: Wire up bpf syscall	2014-10-27 09:25:34 +01:00
mips	MIPS: SEAD3: Fix I2C device registration.	2014-10-24 13:34:42 +02:00
mn10300	Merge branch 'locking-arch-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-13 15:48:00 +02:00
openrisc	Merge git://git.infradead.org/users/eparis/audit	2014-10-19 16:25:56 -07:00
parisc	Merge git://git.infradead.org/users/eparis/audit	2014-10-19 16:25:56 -07:00
powerpc	PPC: bpf_jit_comp: add SKF_AD_PKTTYPE instruction	2014-11-03 15:29:42 -05:00
s390	Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-10-31 14:01:47 -07:00
score	score: use Kbuild logic to include <asm-generic/sections.h>	2014-10-09 22:25:46 -04:00
sh	sh: fix sh770x SCIF memory regions	2014-10-29 16:33:15 -07:00
sparc	sparc: Hook up bpf system call.	2014-10-28 11:30:43 -07:00
tile	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
um	Merge git://git.infradead.org/users/eparis/audit	2014-10-19 16:25:56 -07:00
unicore32	nosave: consolidate __nosave_{begin,end} in <asm/sections.h>	2014-10-09 22:26:04 -04:00
x86	fast_hash: avoid indirect function calls	2014-11-05 22:01:21 -05:00
xtensa	Merge git://git.infradead.org/users/eparis/audit	2014-10-19 16:25:56 -07:00
.gitignore	…
Kconfig	seccomp: Document two-phase seccomp and arch-provided seccomp_data	2014-09-03 14:58:17 -07:00