user/sven/linux.git/kernel/sched_cpupri.c, branch tmp/leds/coreLinux Kernel
https://git.stealer.net/cgit.cgi/user/sven/linux.git/atom?h=tmp%2Fleds%2Fcore2009-01-06T10:07:15Zsched: fix section mismatch2009-01-06T10:07:15ZLi Zefanlizf@cn.fujitsu.com2009-01-06T09:40:36Zurn:sha1:db2f59c8c9b315f2b88b1dac159b988c6009034d
init_rootdomain() calls alloc_bootmem_cpumask_var() at system boot,
so does cpupri_init().
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
sched: convert struct cpupri_vec cpumask_var_t.2008-11-24T16:52:22ZRusty Russellrusty@rustcorp.com.au2008-11-24T16:05:13Zurn:sha1:68e74568fbe5854952355e942acca51f138096d9
Impact: stack usage reduction, (future) size reduction for large NR_CPUS.
Dynamically allocating cpumasks (when CONFIG_CPUMASK_OFFSTACK) saves
space for small nr_cpu_ids but big CONFIG_NR_CPUS.
The fact cpupro_init is called both before and after the slab is
available makes for an ugly parameter unfortunately.
We also use cpumask_any_and to get rid of a temporary in cpupri_find.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
sched: use a 2-d bitmap for searching lowest-pri CPU2008-06-06T13:19:28ZGregory Haskinsghaskins@novell.com2008-05-12T19:21:01Zurn:sha1:6e0534f278199f1e3dd1049b9bc19a7a5b87ada1
The current code use a linear algorithm which causes scaling issues
on larger SMP machines. This patch replaces that algorithm with a
2-dimensional bitmap to reduce latencies in the wake-up path.
Signed-off-by: Gregory Haskins <ghaskins@novell.com>
Acked-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>