1) uml kernel bootmem managed through bootmem_data->node_bootmem_map,
not struct page array, so it is unnecessary.
2) the struct page array allocate has been pointer by a *loacl* pointer
struct page *map in init_maps function. The array can't be access after
the init_maps exit. As a result, there is about 1% of total memory leak.
---
arch/um/kernel/um_arch.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 016adf0..9f3c6d1 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -309,11 +309,6 @@ int __init linux_main(int argc, char **argv)
*/
diff = UML_ROUND_UP(brk_start) - UML_ROUND_UP(&_end);
- if (diff > 1024 * 1024) {
- printf("Adding %ld bytes to physical memory to account for "
- "exec-shield gap\n", diff);
- physmem_size += UML_ROUND_UP(brk_start) - UML_ROUND_UP(&_end);
- }
uml_physmem = (unsigned long) &__binary_start & PAGE_MASK;
--
1.8.3.1
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