linux-stable.git/include/linux/cpumask.h, branch v2.6.30

cpumask: introduce zalloc_cpumask_var

2009-06-09T13:00:26+00:00

So can get cpumask_var with cpumask_clear

Signed-off-by: Yinghai Lu 
Signed-off-by: Rusty Russell

cpumask: CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS

2008-12-31T23:42:30+00:00

Impact: new debug CONFIG options

This helps find unconverted code.  It currently breaks compile horribly,
but we never wanted a flag day so that's expected.

Signed-off-by: Rusty Russell

cpumask: make set_cpu_/init_cpu_ out-of-line

2008-12-29T22:35:16+00:00

They're only for use in boot/cpu hotplug code anyway, and this avoids
the use of deprecated cpu_*_map.

Stephen Rothwell points out that gcc 4.2.4 (on powerpc at least)
didn't like the cast away of const anyway:

  include/linux/cpumask.h: In function 'set_cpu_possible':
  include/linux/cpumask.h:1052: warning: passing argument 2 of 'cpumask_set_cpu' discards qualifiers from pointer target type

So this kills two birds with one stone.

Signed-off-by: Rusty Russell

cpumask: make cpumask.h eat its own dogfood.

2008-12-29T22:35:15+00:00

Changes:
1) cpumask_t to struct cpumask,
2) cpus_weight_nr to cpumask_weight,
3) cpu_isset to cpumask_test_cpu,
4) ->bits to cpumask_bits()
5) cpu_*_map to cpu_*_mask.
6) for_each_cpu_mask_nr to for_each_cpu

Signed-off-by: Rusty Russell

cpumask: switch over to cpu_online/possible/active/present_mask: core

2008-12-29T22:35:14+00:00

Impact: cleanup

This implements the obsolescent cpu_online_map in terms of
cpu_online_mask, rather than the other way around.  Same for the other
maps.

The documentation comments are also updated to refer to _mask rather
than _map.

Signed-off-by: Rusty Russell 
Signed-off-by: Mike Travis

cpumask: Add alloc_cpumask_var_node()

2008-12-19T06:26:37+00:00

Impact: New API

This will be needed in x86 code to allocate the domain and old_domain
cpumasks on the same node as where the containing irq_cfg struct is
allocated.

(Also fixes double-dump_stack on rare CONFIG_DEBUG_PER_CPU_MAPS case)

Signed-off-by: Mike Travis 
Signed-off-by: Rusty Russell  (re-impl alloc_cpumask_var)

cpumask: Use all NR_CPUS bits unless CONFIG_CPUMASK_OFFSTACK

2008-12-13T10:50:28+00:00

Impact: futureproof as we convert more code to new APIs

The old cpumask operators treat all NR_CPUS bits as relevent, the new
ones use nr_cpumask_bits.  For large NR_CPUS and small nr_cpu_ids, this
makes a difference.

However, mixing the two can cause problems with undefined bits.  An
arch which sets CONFIG_CPUMASK_OFFSTACK should have converted across
to the new operators, so it's safe in that case.

(Thanks to Stephen Rothwell for bisecting the initial unused-bits bug,
and Mike Travis for this solution).

Signed-off-by: Rusty Russell 
Cc: Mike Travis

cpumask: change cpumask_scnprintf, cpumask_parse_user, cpulist_parse, and cpulist_scnprintf to take pointers.

2008-12-13T10:50:25+00:00

Impact: change calling convention of existing cpumask APIs

Most cpumask functions started with cpus_: these have been replaced by
cpumask_ ones which take struct cpumask pointers as expected.

These four functions don't have good replacement names; fortunately
they're rarely used, so we just change them over.

Signed-off-by: Rusty Russell 
Signed-off-by: Mike Travis 
Acked-by: Ingo Molnar 
Cc: paulus@samba.org
Cc: mingo@redhat.com
Cc: tony.luck@intel.com
Cc: ralf@linux-mips.org
Cc: Greg Kroah-Hartman 
Cc: cl@linux-foundation.org
Cc: srostedt@redhat.com

cpumask: introduce new API, without changing anything, v3

2008-11-09T20:09:54+00:00

Impact: cleanup

Clean up based on feedback from Andrew Morton and others:

 - change to inline functions instead of macros
 - add __init to bootmem method
 - add a missing debug check

Signed-off-by: Rusty Russell 
Signed-off-by: Ingo Molnar

cpumask: new API, v2

2008-11-07T11:52:30+00:00

- add cpumask_of()
- add free_bootmem_cpumask_var()

Signed-off-by: Rusty Russell 
Signed-off-by: Ingo Molnar