diff options
| author | Mathias Krause <minipli@googlemail.com> | 2011-07-25 17:12:42 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-25 20:57:12 -0700 |
| commit | b7de110044b4e26adcb7b278d14da93133692ed7 (patch) | |
| tree | 33723340931b8c3e8b68808cafae2a075de3215d | |
| parent | f796062598235b9f73086d0fb779e120ae9581a0 (diff) | |
m68k, exec: remove redundant set_fs(USER_DS)
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>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | arch/m68k/include/asm/processor.h | 4 | ||||
| -rw-r--r-- | arch/m68k/kernel/process_mm.c | 2 | ||||
| -rw-r--r-- | arch/m68k/kernel/process_no.c | 2 |
3 files changed, 2 insertions, 6 deletions
diff --git a/arch/m68k/include/asm/processor.h b/arch/m68k/include/asm/processor.h index f111b02b704f..d8ef53ac03f9 100644 --- a/arch/m68k/include/asm/processor.h +++ b/arch/m68k/include/asm/processor.h @@ -105,9 +105,6 @@ struct thread_struct { static inline void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long usp) { - /* reads from user space */ - set_fs(USER_DS); - regs->pc = pc; regs->sr &= ~0x2000; wrusp(usp); @@ -129,7 +126,6 @@ extern int handle_kernel_fault(struct pt_regs *regs); #define start_thread(_regs, _pc, _usp) \ do { \ - set_fs(USER_DS); /* reads from user space */ \ (_regs)->pc = (_pc); \ ((struct switch_stack *)(_regs))[-1].a6 = 0; \ reformat(_regs); \ diff --git a/arch/m68k/kernel/process_mm.c b/arch/m68k/kernel/process_mm.c index c2a1fc23dd75..1bc223aa07ec 100644 --- a/arch/m68k/kernel/process_mm.c +++ b/arch/m68k/kernel/process_mm.c @@ -185,7 +185,7 @@ EXPORT_SYMBOL(kernel_thread); void flush_thread(void) { unsigned long zero = 0; - set_fs(USER_DS); + current->thread.fs = __USER_DS; if (!FPU_IS_EMU) asm volatile (".chip 68k/68881\n\t" diff --git a/arch/m68k/kernel/process_no.c b/arch/m68k/kernel/process_no.c index 9b86ad11c68e..69c1803fcf1b 100644 --- a/arch/m68k/kernel/process_no.c +++ b/arch/m68k/kernel/process_no.c @@ -158,7 +158,7 @@ void flush_thread(void) #ifdef CONFIG_FPU unsigned long zero = 0; #endif - set_fs(USER_DS); + current->thread.fs = __USER_DS; #ifdef CONFIG_FPU if (!FPU_IS_EMU) |