Sebastian Andrzej Siewior 668b448466 x86/div64: Add a micro-optimization shortcut if base is power of two ... In the target code I have a do_div(x, PAGE_SIZE). The x86-64 version of it was doing a shift and a mask which is clever. The 32bit version of it had a div operation in it which made me think. After digging I noticed that x86 has an optimized version of it. This patch adds this shift and mask optimization if base is constant so we don't have any runtime "checking" overhead since most users use a power of ten. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/1322649814-544-1-git-send-email-bigeasy@linutronix.de Signed-off-by: Ingo Molnar <mingo@elte.hu>		2011-12-05 18:16:11 +01:00
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alpha	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
arm	Merge branch 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm	2011-12-01 11:53:54 -08:00
avr32	Merge git://git.infradead.org/mtd-2.6	2011-11-07 09:11:16 -08:00
blackfin	blackfin: Fixup export.h includes	2011-11-14 17:15:23 +08:00
cris	net: Fix references to deleted NET_ETHERNET Kconfig setting.	2011-11-09 19:26:53 -05:00
frv	kgdb: follow rename pack_hex_byte() to hex_byte_pack()	2011-10-31 17:30:56 -07:00
h8300	Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6	2011-10-29 07:27:45 -07:00
hexagon	Hexagon: Add basic stacktrace functionality for Hexagon architecture.	2011-11-01 07:34:21 -07:00
ia64	Merge branch 'upstream/xen-settime' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen	2011-11-06 20:15:05 -08:00
m32r	Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild	2011-11-06 18:54:53 -08:00
m68k	m68k/mac: Remove mac_irq_{en,dis}able() wrappers	2011-11-08 22:35:52 +01:00
microblaze	microblaze: bury asm/namei.h	2011-11-21 16:48:28 -05:00
mips	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2011-11-15 22:44:45 -02:00
mn10300	kgdb: follow rename pack_hex_byte() to hex_byte_pack()	2011-10-31 17:30:56 -07:00
openrisc	Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild	2011-11-06 18:54:53 -08:00
parisc	parisc: Add export.h to files needing EXPORT_SYMBOL/THIS_MODULE	2011-10-31 19:31:00 -04:00
powerpc	powerpc/44x: Add mtd ndfc to the ppx44x defconfig	2011-11-25 10:06:00 +11:00
s390	Merge branch 'kvm-updates/3.2' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2011-11-20 14:57:43 -08:00
score	score: drop unused Kconfig symbols	2011-10-31 23:39:51 +01:00
sh	Merge branches 'sh/pm-runtime' and 'common/clkfwk' into sh-fixes-for-linus	2011-11-11 16:16:25 +09:00
sparc	sparc64: Patch sun4v code sequences properly on module load.	2011-11-17 22:44:58 -08:00
tile	Merge branch 'for-linus' of git://github.com/cmetcalf-tilera/linux-tile	2011-11-04 12:33:34 -07:00
um	Merge branch 'for-linus' of git://github.com/richardweinberger/linux	2011-11-02 09:45:39 -07:00
unicore32	unicore32, exec: remove redundant set_fs(USER_DS)	2011-11-16 10:50:09 +08:00
x86	x86/div64: Add a micro-optimization shortcut if base is power of two	2011-12-05 18:16:11 +01:00
xtensa	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2011-10-26 17:15:03 +02:00
.gitignore	…
Kconfig	Add Kconfig option ARCH_HAVE_NMI_SAFE_CMPXCHG	2011-08-03 11:12:37 -04:00