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x86: ptrace.c: fix defined-but-unused warnings 

arch/x86/kernel/ptrace.c:548: warning: 'ptrace_bts_get_size' defined but not used
arch/x86/kernel/ptrace.c:558: warning: 'ptrace_bts_read_record' defined but not used
arch/x86/kernel/ptrace.c:607: warning: 'ptrace_bts_clear' defined but not used
arch/x86/kernel/ptrace.c:617: warning: 'ptrace_bts_drain' defined but not used
arch/x86/kernel/ptrace.c:720: warning: 'ptrace_bts_config' defined but not used
arch/x86/kernel/ptrace.c:788: warning: 'ptrace_bts_status' defined but not used

Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Andrew Morton 2008-03-04 15:05:39 -08:00 committed by Ingo Molnar
parent bc713dcf35
commit d8d4f157b8
1 changed files with 85 additions and 84 deletions
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169
arch/x86/kernel/ptrace.c
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@ -600,21 +600,6 @@ static int ptrace_bts_read_record(struct task_struct *child,
return sizeof(ret);
}
static int ptrace_bts_write_record(struct task_struct *child,
const struct bts_struct *in)
{
int retval;
if (!child->thread.ds_area_msr)
return -ENXIO;
retval = ds_write_bts((void *)child->thread.ds_area_msr, in);
if (retval)
return retval;
return sizeof(*in);
}
static int ptrace_bts_clear(struct task_struct *child)
{
if (!child->thread.ds_area_msr)
@ -657,75 +642,6 @@ static int ptrace_bts_drain(struct task_struct *child,
return end;
}
static int ptrace_bts_realloc(struct task_struct *child,
int size, int reduce_size)
{
unsigned long rlim, vm;
int ret, old_size;
if (size < 0)
return -EINVAL;
old_size = ds_get_bts_size((void *)child->thread.ds_area_msr);
if (old_size < 0)
return old_size;
ret = ds_free((void **)&child->thread.ds_area_msr);
if (ret < 0)
goto out;
size >>= PAGE_SHIFT;
old_size >>= PAGE_SHIFT;
current->mm->total_vm -= old_size;
current->mm->locked_vm -= old_size;
if (size == 0)
goto out;
rlim = current->signal->rlim[RLIMIT_AS].rlim_cur >> PAGE_SHIFT;
vm = current->mm->total_vm + size;
if (rlim < vm) {
ret = -ENOMEM;
if (!reduce_size)
goto out;
size = rlim - current->mm->total_vm;
if (size <= 0)
goto out;
}
rlim = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur >> PAGE_SHIFT;
vm = current->mm->locked_vm + size;
if (rlim < vm) {
ret = -ENOMEM;
if (!reduce_size)
goto out;
size = rlim - current->mm->locked_vm;
if (size <= 0)
goto out;
}
ret = ds_allocate((void **)&child->thread.ds_area_msr,
size << PAGE_SHIFT);
if (ret < 0)
goto out;
current->mm->total_vm += size;
current->mm->locked_vm += size;
out:
if (child->thread.ds_area_msr)
set_tsk_thread_flag(child, TIF_DS_AREA_MSR);
else
clear_tsk_thread_flag(child, TIF_DS_AREA_MSR);
return ret;
}
static int ptrace_bts_config(struct task_struct *child,
long cfg_size,
const struct ptrace_bts_config __user *ucfg)
@ -828,6 +744,91 @@ static int ptrace_bts_status(struct task_struct *child,
return sizeof(cfg);
}
static int ptrace_bts_write_record(struct task_struct *child,
const struct bts_struct *in)
{
int retval;
if (!child->thread.ds_area_msr)
return -ENXIO;
retval = ds_write_bts((void *)child->thread.ds_area_msr, in);
if (retval)
return retval;
return sizeof(*in);
}
static int ptrace_bts_realloc(struct task_struct *child,
int size, int reduce_size)
{
unsigned long rlim, vm;
int ret, old_size;
if (size < 0)
return -EINVAL;
old_size = ds_get_bts_size((void *)child->thread.ds_area_msr);
if (old_size < 0)
return old_size;
ret = ds_free((void **)&child->thread.ds_area_msr);
if (ret < 0)
goto out;
size >>= PAGE_SHIFT;
old_size >>= PAGE_SHIFT;
current->mm->total_vm -= old_size;
current->mm->locked_vm -= old_size;
if (size == 0)
goto out;
rlim = current->signal->rlim[RLIMIT_AS].rlim_cur >> PAGE_SHIFT;
vm = current->mm->total_vm + size;
if (rlim < vm) {
ret = -ENOMEM;
if (!reduce_size)
goto out;
size = rlim - current->mm->total_vm;
if (size <= 0)
goto out;
}
rlim = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur >> PAGE_SHIFT;
vm = current->mm->locked_vm + size;
if (rlim < vm) {
ret = -ENOMEM;
if (!reduce_size)
goto out;
size = rlim - current->mm->locked_vm;
if (size <= 0)
goto out;
}
ret = ds_allocate((void **)&child->thread.ds_area_msr,
size << PAGE_SHIFT);
if (ret < 0)
goto out;
current->mm->total_vm += size;
current->mm->locked_vm += size;
out:
if (child->thread.ds_area_msr)
set_tsk_thread_flag(child, TIF_DS_AREA_MSR);
else
clear_tsk_thread_flag(child, TIF_DS_AREA_MSR);
return ret;
}
void ptrace_bts_take_timestamp(struct task_struct *tsk,
enum bts_qualifier qualifier)
{