On Tue, 20 Feb 2018 05:50:43 PST (-0800), s...@shealevy.com wrote:
Signed-off-by: Shea Levy <s...@shealevy.com>
arch/riscv/mm/init.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index c77df8142be2..1c832b541e95 100644
@@ -66,5 +66,11 @@ void free_initmem(void)
void free_initrd_mem(unsigned long start, unsigned long end)
+ if (start == initrd_start)
+ start = round_down(start, PAGE_SIZE);
+ if (end == initrd_end)
+ end = round_up(end, PAGE_SIZE);
+ free_reserved_area((void *)start, (void *)end, -1, "initrd");
#endif /* CONFIG_BLK_DEV_INITRD */
It looks like everyone is doing something slightly different here:
* arm64 doesn't round to a page size, and has keep_initrd.
* arm calls poison_init_mem(), and has keep_initrd.
* sparc64 doesn't round, and doesn't have a keep_initrd.
* mips doesn't round, and doesn't have a keep_initrd.
* x86 rounds end to a page size but not start, and doesn't have a keep_initrd.
It feels like this should be something generic. I'm adding linux-kernel to see
what people think.