sh, exec: remove redundant set_fs(USER_DS)
authorMathias Krause <minipli@googlemail.com>
Fri, 10 Jun 2011 13:10:48 +0000 (13:10 +0000)
committerPaul Mundt <lethal@linux-sh.org>
Tue, 14 Jun 2011 06:15:58 +0000 (15:15 +0900)
The address limit is already set in flush_old_exec() so those calls to
set_fs(USER_DS) are redundant.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
arch/sh/include/asm/processor_64.h
arch/sh/kernel/process_32.c

index 2a541dd..e25c4c7 100644 (file)
@@ -150,7 +150,6 @@ struct thread_struct {
 #define SR_USER (SR_MMU | SR_FD)
 
 #define start_thread(_regs, new_pc, new_sp)                    \
-       set_fs(USER_DS);                                        \
        _regs->sr = SR_USER;    /* User mode. */                \
        _regs->pc = new_pc - 4; /* Compensate syscall exit */   \
        _regs->pc |= 1;         /* Set SHmedia ! */             \
index b473f0c..aaf6d59 100644 (file)
@@ -102,8 +102,6 @@ EXPORT_SYMBOL(kernel_thread);
 void start_thread(struct pt_regs *regs, unsigned long new_pc,
                  unsigned long new_sp)
 {
-       set_fs(USER_DS);
-
        regs->pr = 0;
        regs->sr = SR_FD;
        regs->pc = new_pc;