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-rw-r--r--mm/memblock.c17
-rw-r--r--mm/nobootmem.c25
2 files changed, 16 insertions, 26 deletions
diff --git a/mm/memblock.c b/mm/memblock.c
index 64ed2439cf75..9c0aeef19440 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -266,33 +266,20 @@ static void __init_memblock memblock_remove_region(struct memblock_type *type, u
}
}
+#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
+
phys_addr_t __init_memblock get_allocated_memblock_reserved_regions_info(
phys_addr_t *addr)
{
if (memblock.reserved.regions == memblock_reserved_init_regions)
return 0;
- /*
- * Don't allow nobootmem allocator to free reserved memory regions
- * array if
- * - CONFIG_DEBUG_FS is enabled;
- * - CONFIG_ARCH_DISCARD_MEMBLOCK is not enabled;
- * - reserved memory regions array have been resized during boot.
- * Otherwise debug_fs entry "sys/kernel/debug/memblock/reserved"
- * will show garbage instead of state of memory reservations.
- */
- if (IS_ENABLED(CONFIG_DEBUG_FS) &&
- !IS_ENABLED(CONFIG_ARCH_DISCARD_MEMBLOCK))
- return 0;
-
*addr = __pa(memblock.reserved.regions);
return PAGE_ALIGN(sizeof(struct memblock_region) *
memblock.reserved.max);
}
-#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
-
phys_addr_t __init_memblock get_allocated_memblock_memory_regions_info(
phys_addr_t *addr)
{
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 17c89023184f..f73f2987a852 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -116,23 +116,26 @@ static unsigned long __init __free_memory_core(phys_addr_t start,
static unsigned long __init free_low_memory_core_early(void)
{
unsigned long count = 0;
- phys_addr_t start, end, size;
+ phys_addr_t start, end;
u64 i;
for_each_free_mem_range(i, NUMA_NO_NODE, &start, &end, NULL)
count += __free_memory_core(start, end);
- /* Free memblock.reserved array if it was allocated */
- size = get_allocated_memblock_reserved_regions_info(&start);
- if (size)
- count += __free_memory_core(start, start + size);
-
#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
-
- /* Free memblock.memory array if it was allocated */
- size = get_allocated_memblock_memory_regions_info(&start);
- if (size)
- count += __free_memory_core(start, start + size);
+ {
+ phys_addr_t size;
+
+ /* Free memblock.reserved array if it was allocated */
+ size = get_allocated_memblock_reserved_regions_info(&start);
+ if (size)
+ count += __free_memory_core(start, start + size);
+
+ /* Free memblock.memory array if it was allocated */
+ size = get_allocated_memblock_memory_regions_info(&start);
+ if (size)
+ count += __free_memory_core(start, start + size);
+ }
#endif
return count;
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