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Date: Tue, 23 May 2017 22:08:52 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Masami Hiramatsu <mhiramat@...nel.org>, Richard Weinberger <richard@....at> Subject: [PATCH 4.11 171/197] um: Fix to call read_initrd after init_bootmem 4.11-stable review patch. If anyone has any objections, please let me know. ------------------ From: Masami Hiramatsu <mhiramat@...nel.org> commit 5b4236e17cc1bd9fa14b2b0c7a4ae632d41f2e20 upstream. Since read_initrd() invokes alloc_bootmem() for allocating memory to load initrd image, it must be called after init_bootmem. This makes read_initrd() called directly from setup_arch() after init_bootmem() and mem_total_pages(). Fixes: b63236972e1 ("um: Setup physical memory in setup_arch()") Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org> Signed-off-by: Richard Weinberger <richard@....at> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- arch/um/kernel/initrd.c | 4 +--- arch/um/kernel/um_arch.c | 6 ++++++ 2 files changed, 7 insertions(+), 3 deletions(-) --- a/arch/um/kernel/initrd.c +++ b/arch/um/kernel/initrd.c @@ -14,7 +14,7 @@ static char *initrd __initdata = NULL; static int load_initrd(char *filename, void *buf, int size); -static int __init read_initrd(void) +int __init read_initrd(void) { void *area; long long size; @@ -46,8 +46,6 @@ static int __init read_initrd(void) return 0; } -__uml_postsetup(read_initrd); - static int __init uml_initrd_setup(char *line, int *add) { initrd = line; --- a/arch/um/kernel/um_arch.c +++ b/arch/um/kernel/um_arch.c @@ -338,11 +338,17 @@ int __init linux_main(int argc, char **a return start_uml(); } +int __init __weak read_initrd(void) +{ + return 0; +} + void __init setup_arch(char **cmdline_p) { stack_protections((unsigned long) &init_thread_info); setup_physmem(uml_physmem, uml_reserved, physmem_size, highmem); mem_total_pages(physmem_size, iomem_size, highmem); + read_initrd(); paging_init(); strlcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
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