From 07805ac81c81634623042408ffea6bbad3160bfa Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Tue, 22 Sep 2009 22:58:48 +0200 Subject: [S390] ptrace: use common code for simple peek/poke operations arch_ptrace on s390 implements PTRACE_(PEEK|POKE)(TEXT|DATA) instead of using using ptrace_request in kernel/ptrace.c. The only reason is the 31bit addressing mode, where we have to unmask the highest bit. Signed-off-by: Christian Borntraeger Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/ptrace.c | 19 ++++--------------- 1 file changed, 4 insertions(+), 15 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index f3ddd7ac06c..a8738676b26 100644 --- a/arch/s390/kernel/ptrace.c +++ b/arch/s390/kernel/ptrace.c @@ -339,24 +339,10 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) int copied, ret; switch (request) { - case PTRACE_PEEKTEXT: - case PTRACE_PEEKDATA: - /* Remove high order bit from address (only for 31 bit). */ - addr &= PSW_ADDR_INSN; - /* read word at location addr. */ - return generic_ptrace_peekdata(child, addr, data); - case PTRACE_PEEKUSR: /* read the word at location addr in the USER area. */ return peek_user(child, addr, data); - case PTRACE_POKETEXT: - case PTRACE_POKEDATA: - /* Remove high order bit from address (only for 31 bit). */ - addr &= PSW_ADDR_INSN; - /* write the word at location addr. */ - return generic_ptrace_pokedata(child, addr, data); - case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ return poke_user(child, addr, data); @@ -386,8 +372,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) copied += sizeof(unsigned long); } return 0; + default: + /* Removing high order bit from addr (only for 31 bit). */ + addr &= PSW_ADDR_INSN; + return ptrace_request(child, request, addr, data); } - return ptrace_request(child, request, addr, data); } #ifdef CONFIG_COMPAT -- cgit v1.2.3