get_allocated_memblock_reserved_regions_info() should work if it is
compiled in. Extended the ifdef around
get_allocated_memblock_memory_regions_info() to include
get_allocated_memblock_reserved_regions_info() as well.
Similar changes in nobootmem.c/free_low_memory_core_early() where
the two functions are called.
Signed-off-by: Philipp Hachtmann <phacht@xxxxxxxxxxxxxxxxxx>
---
mm/memblock.c | 17 ++---------------
mm/nobootmem.c | 4 ++--
2 files changed, 4 insertions(+), 17 deletions(-)
diff --git a/mm/memblock.c b/mm/memblock.c
index 64ed243..9c0aeef 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 17c8902..e2906a5 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -122,13 +122,13 @@ static unsigned long __init free_low_memory_core_early(void)
for_each_free_mem_range(i, NUMA_NO_NODE, &start, &end, NULL)
count += __free_memory_core(start, end);
+#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
+
/* 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)
--
1.8.4.5
--
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