The patch titled
Subject: vmalloc: export __vmalloc_node_range for CONFIG_TEST_VMALLOC_MODULE
has been added to the -mm tree. Its filename is
vmalloc-export-__vmalloc_node_range-for-config_test_vmalloc_module.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/vmalloc-export-__vmalloc_node_range-for-config_test_vmalloc_module.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/vmalloc-export-__vmalloc_node_range-for-config_test_vmalloc_module.patch
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------------------------------------------------------
From: "Uladzislau Rezki (Sony)" <urezki@xxxxxxxxx>
Subject: vmalloc: export __vmalloc_node_range for CONFIG_TEST_VMALLOC_MODULE
Export __vmaloc_node_range() function if CONFIG_TEST_VMALLOC_MODULE is
enabled. Some test cases in vmalloc test suite module require and make
use of that function. Please note, that it is not supposed to be used
for other purposes.
We need it only for performance analysis, stressing and stability check
of vmalloc allocator.
Link: http://lkml.kernel.org/r/20190103142108.20744-2-urezki@xxxxxxxxx
Signed-off-by: Uladzislau Rezki (Sony) <urezki@xxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Cc: Oleksiy Avramchenko <oleksiy.avramchenko@xxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/mm/vmalloc.c~vmalloc-export-__vmalloc_node_range-for-config_test_vmalloc_module
+++ a/mm/vmalloc.c
@@ -1774,6 +1774,15 @@ fail:
return NULL;
}
+/*
+ * This is only for performance analysis of vmalloc and stress purpose.
+ * It is required by vmalloc test module, therefore do not use it other
+ * than that.
+ */
+#ifdef CONFIG_TEST_VMALLOC_MODULE
+EXPORT_SYMBOL_GPL(__vmalloc_node_range);
+#endif
+
/**
* __vmalloc_node - allocate virtually contiguous memory
* @size: allocation size
_
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
selftests-vm-add-script-helper-for-config_test_vmalloc_module.patch
