Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b8d317...
Commit: b8d317d10cca76cabe6b03ebfeb23cc99118b731
Parent: 024e8ac04453b3525448c31ef39848cf675ba6db
Author: Mike Travis <travis@sgi.com>
AuthorDate: Thu Jul 24 18:21:29 2008 -0700
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Sat Jul 26 16:40:32 2008 +0200
cpumask: make cpumask_of_cpu_map generic
If an arch doesn't define cpumask_of_cpu_map, create a generic
statically-initialized one for them. This allows removal of the buggy
cpumask_of_cpu() macro (&cpumask_of_cpu() gives address of
out-of-scope var).
An arch with NR_CPUS of 4096 probably wants to allocate this itself
based on the actual number of CPUs, since otherwise they're using 2MB
of rodata (1024 cpus means 128k). That's what
CONFIG_HAVE_CPUMASK_OF_CPU_MAP is for (only x86/64 does so at the
moment).
In future as we support more CPUs, we'll need to resort to a
get_cpu_map()/put_cpu_map() allocation scheme.
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jack Steiner <steiner@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
include/linux/cpumask.h | 41 +----------------
kernel/cpu.c | 109 +++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 112 insertions(+), 38 deletions(-)
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 1b5c98e..8fa3b6d 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -62,15 +62,7 @@
* int next_cpu_nr(cpu, mask) Next cpu past 'cpu', or nr_cpu_ids
*
* cpumask_t cpumask_of_cpu(cpu) Return cpumask with bit 'cpu' set
- *ifdef CONFIG_HAS_CPUMASK_OF_CPU
- * cpumask_of_cpu_ptr_declare(v) Declares cpumask_t *v
- * cpumask_of_cpu_ptr_next(v, cpu) Sets v = &cpumask_of_cpu_map[cpu]
- ...
