linux/arch/powerpc
will schmidt e147ec8f18 [POWERPC] Simplify smp_space_timers
Greatly simplify the function smp_space_timers.

The stolen time calculation (per comment within the code) doesn't need the
half-jiffy stagger any more.  There isn't an issue with bouncing off global
locks, so we really shouldn't need any sort of staggering at all.

However, the last_jiffy value still needs to be set.   This removes the
extra stagger logic, and just sets the values.

This change should benefit applications that rely on barrier
synchronization, and will help cut down OS jitter.

Boot tested across the board (G5,power3,power4,power5,970mp blade).

Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-12 11:32:47 +10:00
..
boot [POWERPC] 83xx: Fix the PCI ranges in the MPC834x_MDS device tree. 2007-05-09 23:07:52 -05:00
configs [POWERPC] celleb: Update celleb_defconfig 2007-05-10 21:28:12 +10:00
kernel [POWERPC] Simplify smp_space_timers 2007-05-12 11:32:47 +10:00
lib [POWERPC] User rheap from arch/powerpc/lib 2007-05-09 23:28:17 -05:00
math-emu [POWERPC] ppc math-emu needs -fno-builtin-fabs for math.c and fabs.c 2006-09-26 15:24:35 +10:00
mm [POWERPC] Remove unused variable in hpte_decode() 2007-05-12 11:32:47 +10:00
oprofile Fix misspellings collected by members of KJ list. 2007-05-09 07:14:03 +02:00
platforms [POWERPC] Trivial ps3 warning fixes 2007-05-12 11:32:47 +10:00
sysdev [POWERPC] Change rheap functions to use ulongs instead of pointers 2007-05-09 23:01:43 -05:00
xmon Simplify kallsyms_lookup() 2007-05-08 11:15:08 -07:00
.gitignore [POWERPC] Add files build to .gitignore 2006-12-04 20:41:29 +11:00
Kconfig [POWERPC] Don't use SLAB/SLUB for PTE pages 2007-05-09 16:35:00 +10:00
Kconfig.debug Fix trivial typos in Kconfig* files 2007-05-09 07:12:20 +02:00
Makefile [POWERPC] Small cleanups to the cuboot bootwrapper code 2007-05-02 20:04:31 +10:00