[PATCH v2 01/16] initrd: Add generic code path for common initrd unloading logic.
From: Shea Levy <hidden>
Date: 2018-03-25 22:25:50
Also in:
linux-riscv, linux-sh, linux-um, linuxppc-dev, lkml
Subsystem:
filesystems (vfs and infrastructure), kernel build + files below scripts/ (unless maintained elsewhere), the rest · Maintainers:
Alexander Viro, Christian Brauner, Nathan Chancellor, Nicolas Schier, Linus Torvalds
Signed-off-by: Shea Levy <redacted> --- init/initramfs.c | 7 +++++++ usr/Kconfig | 4 ++++ 2 files changed, 11 insertions(+)
diff --git a/init/initramfs.c b/init/initramfs.c
index 7e99a0038942..5f2e3dba4822 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c@@ -526,6 +526,13 @@ extern unsigned long __initramfs_size; #include <linux/initrd.h> #include <linux/kexec.h> +#ifdef CONFIG_INITRAMFS_GENERIC_UNLOAD +void __init free_initrd_mem(unsigned long start, unsigned long end) +{ + free_reserved_area((void *)start, (void *)end, -1, "initrd"); +} +#endif + static void __init free_initrd(void) { #ifdef CONFIG_KEXEC_CORE
diff --git a/usr/Kconfig b/usr/Kconfig
index 43658b8a975e..fd79d4d6fa26 100644
--- a/usr/Kconfig
+++ b/usr/Kconfig@@ -233,3 +233,7 @@ config INITRAMFS_COMPRESSION default ".lzma" if RD_LZMA default ".bz2" if RD_BZIP2 default "" + +# Arches can select this for a generic initrd unloading codepath +config INITRAMFS_GENERIC_UNLOAD + bool
--
2.16.2