Messages in this thread Patch in this message | | | From | Tejun Heo <> | Subject | [PATCH 03/32] cpumask, nodemask: implement cpumask/nodemask_pr_args() | Date | Sat, 24 Jan 2015 09:03:09 -0500 |
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printf family of functions can now format bitmaps using '%*pb[l]' and all cpumask and nodemask formatting will be converted to use it. To ease printing these masks with '%*pb[l]' which require two params - the number of bits and the actual bitmap, this patch implement cpumask_pr_args() and nodemask_pr_args() which can be used to provide arguments for '%*pb[l]'
Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Andrew Morton <akpm@osdl.org> Cc: Rusty Russell <rusty@rustcorp.com.au> --- Hello,
Linus, this is the third of the three pre-requisite patches to convert the users of the dedicated bitmap formatting functions over to '%*pb[l]' formatting and actually implements the formatting.
If this approach is agreed upon, I think it'd be best to route these three patches through mainline soon so that subsystem conversion patches can pull these in and apply per-subsystem conversion patches.
Thanks.
include/linux/cpumask.h | 8 ++++++++ include/linux/nodemask.h | 8 ++++++++ 2 files changed, 16 insertions(+)
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 98939d1..4d8e3b2 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -22,6 +22,14 @@ typedef struct cpumask { DECLARE_BITMAP(bits, NR_CPUS); } cpumask_t; */ #define cpumask_bits(maskp) ((maskp)->bits) +/** + * cpumask_pr_args - printf args to output a cpumask + * @maskp: cpumask to be printed + * + * Can be used to provide arguments for '%*pb[l]' when printing a cpumask. + */ +#define cpumask_pr_args(maskp) nr_cpu_ids, cpumask_bits(maskp) + #if NR_CPUS == 1 #define nr_cpu_ids 1 #else diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h index 83a6aed..63295d2 100644 --- a/include/linux/nodemask.h +++ b/include/linux/nodemask.h @@ -98,6 +98,14 @@ typedef struct { DECLARE_BITMAP(bits, MAX_NUMNODES); } nodemask_t; extern nodemask_t _unused_nodemask_arg_; +/** + * nodemask_pr_args - printf args to output a nodemask + * @maskp: nodemask to be printed + * + * Can be used to provide arguments for '%*pb[l]' when printing a nodemask. + */ +#define nodemask_pr_args(maskp) MAX_NUMNODES, (maskp)->bits + /* * The inline keyword gives the compiler room to decide to inline, or * not inline a function as it sees best. However, as these functions -- 2.1.0
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