The patch titled
Subject: vmalloc-add-test-driver-to-analyse-vmalloc-allocator-fix
has been added to the -mm tree. Its filename is
vmalloc-add-test-driver-to-analyse-vmalloc-allocator-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/vmalloc-add-test-driver-to-analyse-vmalloc-allocator-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/vmalloc-add-test-driver-to-analyse-vmalloc-allocator-fix.patch
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------------------------------------------------------
From: Uladzislau Rezki <urezki@xxxxxxxxx>
Subject: vmalloc-add-test-driver-to-analyse-vmalloc-allocator-fix
I see that the build fails on 32 bit systems. For example i have got two
messages from the robot about ARCH=m68k and ARCH=arm.
Link: http://lkml.kernel.org/r/20190106214839.ffvjvmrn52uqog7k@pc636
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/lib/test_vmalloc.c~vmalloc-add-test-driver-to-analyse-vmalloc-allocator-fix
+++ a/lib/test_vmalloc.c
@@ -348,7 +348,7 @@ static struct test_case_desc test_case_a
struct test_case_data {
int test_failed;
int test_passed;
- s64 time;
+ u64 time;
};
/* Split it to get rid of: WARNING: line over 80 characters */
@@ -387,6 +387,7 @@ static int test_func(void *private)
int random_array[ARRAY_SIZE(test_case_array)];
int index, i, j, ret;
ktime_t kt;
+ u64 delta;
cpumask_set_cpu(t->cpu, &newmask);
set_cpus_allowed_ptr(current, &newmask);
@@ -424,8 +425,10 @@ static int test_func(void *private)
/*
* Take an average time that test took.
*/
- per_cpu_test_data[t->cpu][index].time =
- ktime_us_delta(ktime_get(), kt) / test_repeat_count;
+ delta = (u64) ktime_us_delta(ktime_get(), kt);
+ do_div(delta, (u32) test_repeat_count);
+
+ per_cpu_test_data[t->cpu][index].time = delta;
}
t->stop = get_cycles();
_
Patches currently in -mm which might be from urezki@xxxxxxxxx are
vmalloc-export-__vmalloc_node_range-for-config_test_vmalloc_module.patch
vmalloc-add-test-driver-to-analyse-vmalloc-allocator.patch
vmalloc-add-test-driver-to-analyse-vmalloc-allocator-fix.patch
selftests-vm-add-script-helper-for-config_test_vmalloc_module.patch
