Add free_initrd= option to control freeing of initrd memory after extraction. By default, free memory as previously.
Signed-off-by: Michael Neuling <[EMAIL PROTECTED]> --- Useful for kexec when you want to reuse the same initrd. Testing on POWERPC with CPIOs init/initramfs.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) Index: linux-2.6-ozlabs/init/initramfs.c =================================================================== --- linux-2.6-ozlabs.orig/init/initramfs.c +++ linux-2.6-ozlabs/init/initramfs.c @@ -487,6 +487,17 @@ static char * __init unpack_to_rootfs(ch return message; } +static int do_free_initrd = 1; + +int __init free_initrd_param(char *p) +{ + if (p && strncmp(p, "0", 1) == 0) + do_free_initrd = 0; + + return 0; +} +early_param("free_initrd", free_initrd_param); + extern char __initramfs_start[], __initramfs_end[]; #ifdef CONFIG_BLK_DEV_INITRD #include <linux/initrd.h> @@ -494,10 +505,13 @@ extern char __initramfs_start[], __initr static void __init free_initrd(void) { -#ifdef CONFIG_KEXEC unsigned long crashk_start = (unsigned long)__va(crashk_res.start); unsigned long crashk_end = (unsigned long)__va(crashk_res.end); + if (!do_free_initrd) + goto skip; + +#ifdef CONFIG_KEXEC /* * If the initrd region is overlapped with crashkernel reserved region, * free only memory that is not part of crashkernel region. @@ -515,7 +529,7 @@ static void __init free_initrd(void) } else #endif free_initrd_mem(initrd_start, initrd_end); - +skip: initrd_start = 0; initrd_end = 0; } - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/