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authorLai Jiangshan <laijs@cn.fujitsu.com>2009-12-01 16:24:01 +0800
committerIngo Molnar <mingo@elte.hu>2009-12-01 17:33:30 +0100
commit3bbe84e9d385205d638035ee9dcc4db1b486ea08 (patch)
treee7261e9a3ca13f6e2fd34333e4ccab33b265c32e /kernel/trace
parenta1301da0997bf73c44dbe584e9070a13adc89672 (diff)
trace_syscalls: Simplify syscall profile
use only one prof_sysenter_enable() instead of prof_sysenter_enable_##sname() use only one prof_sysenter_disable() instead of prof_sysenter_disable_##sname() use only one prof_sysexit_enable() instead of prof_sysexit_enable_##sname() use only one prof_sysexit_disable() instead of prof_sysexit_disable_##sname() Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: Jason Baron <jbaron@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <4B14D2A1.8060304@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/trace_syscalls.c24
1 files changed, 8 insertions, 16 deletions
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index c6514093c95..1e85b6cc26a 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -520,14 +520,12 @@ end_recursion:
local_irq_restore(flags);
}
-int reg_prof_syscall_enter(char *name)
+int prof_sysenter_enable(struct ftrace_event_call *call)
{
int ret = 0;
int num;
- num = syscall_name_to_nr(name);
- if (num < 0 || num >= NR_syscalls)
- return -ENOSYS;
+ num = ((struct syscall_metadata *)call->data)->syscall_nr;
mutex_lock(&syscall_trace_lock);
if (!sys_prof_refcount_enter)
@@ -543,13 +541,11 @@ int reg_prof_syscall_enter(char *name)
return ret;
}
-void unreg_prof_syscall_enter(char *name)
+void prof_sysenter_disable(struct ftrace_event_call *call)
{
int num;
- num = syscall_name_to_nr(name);
- if (num < 0 || num >= NR_syscalls)
- return;
+ num = ((struct syscall_metadata *)call->data)->syscall_nr;
mutex_lock(&syscall_trace_lock);
sys_prof_refcount_enter--;
@@ -625,14 +621,12 @@ end_recursion:
local_irq_restore(flags);
}
-int reg_prof_syscall_exit(char *name)
+int prof_sysexit_enable(struct ftrace_event_call *call)
{
int ret = 0;
int num;
- num = syscall_name_to_nr(name);
- if (num < 0 || num >= NR_syscalls)
- return -ENOSYS;
+ num = ((struct syscall_metadata *)call->data)->syscall_nr;
mutex_lock(&syscall_trace_lock);
if (!sys_prof_refcount_exit)
@@ -648,13 +642,11 @@ int reg_prof_syscall_exit(char *name)
return ret;
}
-void unreg_prof_syscall_exit(char *name)
+void prof_sysexit_disable(struct ftrace_event_call *call)
{
int num;
- num = syscall_name_to_nr(name);
- if (num < 0 || num >= NR_syscalls)
- return;
+ num = ((struct syscall_metadata *)call->data)->syscall_nr;
mutex_lock(&syscall_trace_lock);
sys_prof_refcount_exit--;