Commit 2c873d55 authored by Ingo Molnar's avatar Ingo Molnar

sched/core: Remove unused prefetch_stack()

prefetch_stack() is defined by IA64, but not actually used anywhere anymore.

Remove it.
Acked-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent b68070e1
...@@ -19,8 +19,6 @@ ...@@ -19,8 +19,6 @@
#include <asm/ptrace.h> #include <asm/ptrace.h>
#include <asm/ustack.h> #include <asm/ustack.h>
#define ARCH_HAS_PREFETCH_SWITCH_STACK
#define IA64_NUM_PHYS_STACK_REG 96 #define IA64_NUM_PHYS_STACK_REG 96
#define IA64_NUM_DBG_REGS 8 #define IA64_NUM_DBG_REGS 8
......
...@@ -455,29 +455,6 @@ GLOBAL_ENTRY(load_switch_stack) ...@@ -455,29 +455,6 @@ GLOBAL_ENTRY(load_switch_stack)
br.cond.sptk.many b7 br.cond.sptk.many b7
END(load_switch_stack) END(load_switch_stack)
GLOBAL_ENTRY(prefetch_stack)
add r14 = -IA64_SWITCH_STACK_SIZE, sp
add r15 = IA64_TASK_THREAD_KSP_OFFSET, in0
;;
ld8 r16 = [r15] // load next's stack pointer
lfetch.fault.excl [r14], 128
;;
lfetch.fault.excl [r14], 128
lfetch.fault [r16], 128
;;
lfetch.fault.excl [r14], 128
lfetch.fault [r16], 128
;;
lfetch.fault.excl [r14], 128
lfetch.fault [r16], 128
;;
lfetch.fault.excl [r14], 128
lfetch.fault [r16], 128
;;
lfetch.fault [r16], 128
br.ret.sptk.many rp
END(prefetch_stack)
/* /*
* Invoke a system call, but do some tracing before and after the call. * Invoke a system call, but do some tracing before and after the call.
* We MUST preserve the current register frame throughout this routine * We MUST preserve the current register frame throughout this routine
......
...@@ -247,12 +247,6 @@ struct sched_info { ...@@ -247,12 +247,6 @@ struct sched_info {
# define SCHED_FIXEDPOINT_SHIFT 10 # define SCHED_FIXEDPOINT_SHIFT 10
# define SCHED_FIXEDPOINT_SCALE (1L << SCHED_FIXEDPOINT_SHIFT) # define SCHED_FIXEDPOINT_SCALE (1L << SCHED_FIXEDPOINT_SHIFT)
#ifdef ARCH_HAS_PREFETCH_SWITCH_STACK
extern void prefetch_stack(struct task_struct *t);
#else
static inline void prefetch_stack(struct task_struct *t) { }
#endif
struct load_weight { struct load_weight {
unsigned long weight; unsigned long weight;
u32 inv_weight; u32 inv_weight;
......
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