The patch titled
mm/slob.c: for_each_possible_cpu(), not NR_CPUS
has been added to the -mm tree. Its filename is
mm-slobc-for_each_possible_cpu-not-nr_cpus.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
From: John Hawkes <hawkes@xxxxxxx>
Convert for-loops that explicitly reference "NR_CPUS" into the potentially
more efficient for_each_possible_cpu() construct.
Signed-off-by: John Hawkes <hawkes@xxxxxxx>
Cc: Matt Mackall <mpm@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
mm/slob.c | 10 +++-------
1 files changed, 3 insertions(+), 7 deletions(-)
diff -puN mm/slob.c~mm-slobc-for_each_possible_cpu-not-nr_cpus mm/slob.c
--- 25/mm/slob.c~mm-slobc-for_each_possible_cpu-not-nr_cpus Thu Apr 13 16:37:04 2006
+++ 25-akpm/mm/slob.c Thu Apr 13 16:37:04 2006
@@ -354,9 +354,7 @@ void *__alloc_percpu(size_t size)
if (!pdata)
return NULL;
- for (i = 0; i < NR_CPUS; i++) {
- if (!cpu_possible(i))
- continue;
+ for_each_possible_cpu(i) {
pdata->ptrs[i] = kmalloc(size, GFP_KERNEL);
if (!pdata->ptrs[i])
goto unwind_oom;
@@ -383,11 +381,9 @@ free_percpu(const void *objp)
int i;
struct percpu_data *p = (struct percpu_data *) (~(unsigned long) objp);
- for (i = 0; i < NR_CPUS; i++) {
- if (!cpu_possible(i))
- continue;
+ for_each_possible_cpu(i)
kfree(p->ptrs[i]);
- }
+
kfree(p);
}
EXPORT_SYMBOL(free_percpu);
_
Patches currently in -mm which might be from hawkes@xxxxxxx are
nfs_show_stats-for_each_possible_cpu-not-nr_cpus.patch
mm-slobc-for_each_possible_cpu-not-nr_cpus.patch
sched-implement-smpnice.patch
-
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