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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-09-12 18:32:42 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-09-30 23:31:19 -0400 |
| commit | 58254e1002a82eb383c5977ad9fd5a451b91fe29 (patch) | |
| tree | e03b441b252ec3630ceedbe266311c0a24812fd9 /arch/powerpc/kernel/misc_64.S | |
| parent | f322220d6159455da2b5a8a596d802c8695fed30 (diff) | |
| download | linux-58254e1002a82eb383c5977ad9fd5a451b91fe29.tar.bz2 | |
powerpc: split ret_from_fork
... and get rid of in-kernel syscalls in kernel_thread()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/powerpc/kernel/misc_64.S')
| -rw-r--r-- | arch/powerpc/kernel/misc_64.S | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S index 565b78625a32..5cfa8008693b 100644 --- a/arch/powerpc/kernel/misc_64.S +++ b/arch/powerpc/kernel/misc_64.S @@ -407,40 +407,6 @@ _GLOBAL(scom970_write) /* - * Create a kernel thread - * kernel_thread(fn, arg, flags) - */ -_GLOBAL(kernel_thread) - std r29,-24(r1) - std r30,-16(r1) - stdu r1,-STACK_FRAME_OVERHEAD(r1) - mr r29,r3 - mr r30,r4 - 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: cmpdi 0,r3,0 /* parent or child? */ - bne 2f /* return if parent */ - li r0,0 - stdu r0,-STACK_FRAME_OVERHEAD(r1) - ld r2,8(r29) - ld r29,0(r29) - mtlr r29 /* fn addr in lr */ - mr r3,r30 /* load arg and call fn */ - blrl - li r0,__NR_exit /* exit after child exits */ - li r3,0 - sc -2: addi r1,r1,STACK_FRAME_OVERHEAD - ld r29,-24(r1) - ld r30,-16(r1) - blr - -/* * disable_kernel_fp() * Disable the FPU. */ |