openrisc: Reserve memblock for initrd (141d1704) · Commits · 戴 / test

Recently OpenRISC added support for external initrd images, but I found some instability when using larger buildroot initrd images. It turned out that I forgot to reserve the memblock space for the initrd image. This patch fixes the instability issue by reserving memblock space. Fixes: ("openrisc: Add support for external initrd images") Signed-off-by:

Stafford Horne <shorne@gmail.com> Reviewed-by:

Mike Rapoport <rppt@linux.ibm.com>

arch/openrisc/kernel/setup.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -80,6 +80,16 @@ static void __init setup_memory(void)
		*/
		memblock_reserve(__pa(_stext), _end - _stext);

		#ifdef CONFIG_BLK_DEV_INITRD
		/* Then reserve the initrd, if any */
		if (initrd_start && (initrd_end > initrd_start)) {
		unsigned long aligned_start = ALIGN_DOWN(initrd_start, PAGE_SIZE);
		unsigned long aligned_end = ALIGN(initrd_end, PAGE_SIZE);

		memblock_reserve(__pa(aligned_start), aligned_end - aligned_start);
		}
		#endif /* CONFIG_BLK_DEV_INITRD */

		early_init_fdt_reserve_self();
		early_init_fdt_scan_reserved_mem();

Admin message