Thread (3 messages) flat view 3 messages, 2 authors, 2007-05-03

Re: [PATCH] add smp_call_function_map and smp_call_function_single

From: Michael Ellerman <hidden>
Date: 2007-05-03 00:53:58

On Wed, 2007-05-02 at 12:12 -0500, Will Schmidt wrote:
quoted hunk ↗ jump to hunk
Add a new function named smp_call_function_single().  This matches a generic
prototype from include/linux/smp.h.

Add a function smp_call_function_map().  This is, for the most part, a rename
of smp_call_function, with some added cpumask support.  smp_call_function and
smp_call_function_single call into smp_call_function_map.

Lightly tested on 970mp (blade), power4 and power5.

Signed-off-by: Will Schmidt <redacted>
cc: Anton Blanchard <redacted>
---

 arch/powerpc/kernel/smp.c |   73 ++++++++++++++++++++++++++++++++-------------
 1 files changed, 52 insertions(+), 21 deletions(-)
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 924d692..4878588 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -176,10 +176,10 @@ static struct call_data_struct {
 #define SMP_CALL_TIMEOUT	8
 
 /*
- * This function sends a 'generic call function' IPI to all other CPUs
- * in the system.
+ * These functions send a 'generic call function' IPI to other online
+ * CPUS in the system.
  *
- * [SUMMARY] Run a function on all other CPUs.
+ * [SUMMARY] Run a function on other CPUs.
  * <func> The function to run. This must be fast and non-blocking.
  * <info> An arbitrary pointer to pass to the function.
  * <nonatomic> currently unused.
While you're there, or as a separate patch, can you fix up this
not-quite-kernel-doc commenting?

cheers

-- 
Michael Ellerman
OzLabs, IBM Australia Development Lab

wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person

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