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x86: Unify save_stack_address() and save_stack_address_nosched() 

Cleanup. Factor the common code in save_stack_address() and
save_stack_address_nosched().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Vegard Nossum <vegard.nossum@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <20100603193243.GA31534@redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
This commit is contained in:
Oleg Nesterov 2010-06-03 21:32:43 +02:00 committed by Frederic Weisbecker
parent 147ec4d236
commit 018378c55b
1 changed files with 10 additions and 14 deletions
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24
arch/x86/kernel/stacktrace.c
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@ -23,13 +23,16 @@ static int save_stack_stack(void *data, char *name)
return 0;
}
static void save_stack_address(void *data, unsigned long addr, int reliable)
static void
__save_stack_address(void *data, unsigned long addr, bool reliable, bool nosched)
{
struct stack_trace *trace = data;
#ifdef CONFIG_FRAME_POINTER
if (!reliable)
return;
#endif
if (nosched && in_sched_functions(addr))
return;
if (trace->skip > 0) {
trace->skip--;
return;
@ -38,22 +41,15 @@ static void save_stack_address(void *data, unsigned long addr, int reliable)
trace->entries[trace->nr_entries++] = addr;
}
static void save_stack_address(void *data, unsigned long addr, int reliable)
{
return __save_stack_address(data, addr, reliable, false);
}
static void
save_stack_address_nosched(void *data, unsigned long addr, int reliable)
{
struct stack_trace *trace = data;
#ifdef CONFIG_FRAME_POINTER
if (!reliable)
return;
#endif
if (in_sched_functions(addr))
return;
if (trace->skip > 0) {
trace->skip--;
return;
}
if (trace->nr_entries < trace->max_entries)
trace->entries[trace->nr_entries++] = addr;
return __save_stack_address(data, addr, reliable, true);
}
static const struct stacktrace_ops save_stack_ops = {