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-rw-r--r--init/initramfs.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/init/initramfs.c b/init/initramfs.c
index c47dad0884f7..8ec1be4d7d51 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -10,6 +10,7 @@
#include <linux/syscalls.h>
#include <linux/utime.h>
#include <linux/file.h>
+#include <linux/memblock.h>
static ssize_t __init xwrite(int fd, const char *p, size_t count)
{
@@ -529,6 +530,13 @@ extern unsigned long __initramfs_size;
void __weak free_initrd_mem(unsigned long start, unsigned long end)
{
+#ifdef CONFIG_ARCH_KEEP_MEMBLOCK
+ unsigned long aligned_start = ALIGN_DOWN(start, PAGE_SIZE);
+ unsigned long aligned_end = ALIGN(end, PAGE_SIZE);
+
+ memblock_free(__pa(aligned_start), aligned_end - aligned_start);
+#endif
+
free_reserved_area((void *)start, (void *)end, POISON_FREE_INITMEM,
"initrd");
}