From 58254e1002a82eb383c5977ad9fd5a451b91fe29 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 12 Sep 2012 18:32:42 -0400 Subject: powerpc: split ret_from_fork ... and get rid of in-kernel syscalls in kernel_thread() Signed-off-by: Al Viro --- arch/powerpc/kernel/misc_32.S | 33 --------------------------------- 1 file changed, 33 deletions(-) (limited to 'arch/powerpc/kernel/misc_32.S') diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index 407e293aad2f..19e096bd0e73 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -663,39 +663,6 @@ _GLOBAL(abs) sub r3,r3,r4 blr -/* - * Create a kernel thread - * kernel_thread(fn, arg, flags) - */ -_GLOBAL(kernel_thread) - stwu r1,-16(r1) - stw r30,8(r1) - stw r31,12(r1) - mr r30,r3 /* function */ - mr r31,r4 /* argument */ - ori r3,r5,CLONE_VM /* flags */ - oris r3,r3,CLONE_UNTRACED>>16 - li r4,0 /* new sp (unused) */ - li r0,__NR_clone - sc - bns+ 1f /* did system call indicate error? */ - neg r3,r3 /* if so, make return code negative */ -1: cmpwi 0,r3,0 /* parent or child? */ - bne 2f /* return if parent */ - li r0,0 /* make top-level stack frame */ - stwu r0,-16(r1) - mtlr r30 /* fn addr in lr */ - mr r3,r31 /* load arg and call fn */ - PPC440EP_ERR42 - blrl - li r0,__NR_exit /* exit if function returns */ - li r3,0 - sc -2: lwz r30,8(r1) - lwz r31,12(r1) - addi r1,r1,16 - blr - #ifdef CONFIG_SMP _GLOBAL(start_secondary_resume) /* Reset stack */ -- cgit v1.2.1