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um: Fix to call read_initrd after init_bootmem

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commit 5b4236e17c 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: b63236972e ("um: Setup physical memory in setup_arch()")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Masami Hiramatsu 2017-04-27 12:15:10 +09:00 committed by Greg Kroah-Hartman
parent 541c678441
commit cc0aa21de4
2 changed files with 7 additions and 3 deletions
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4
arch/um/kernel/initrd.c
View File

@ -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;

6
arch/um/kernel/um_arch.c
View File

@ -336,11 +336,17 @@ int __init linux_main(int argc, char **argv)
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);