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| author | Lai Jiangshan <laijs@cn.fujitsu.com> | 2009-12-01 16:24:01 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-12-01 17:33:30 +0100 |
| commit | 3bbe84e9d385205d638035ee9dcc4db1b486ea08 (patch) | |
| tree | e7261e9a3ca13f6e2fd34333e4ccab33b265c32e /kernel/trace | |
| parent | a1301da0997bf73c44dbe584e9070a13adc89672 (diff) | |
| download | lwn-3bbe84e9d385205d638035ee9dcc4db1b486ea08.tar.gz lwn-3bbe84e9d385205d638035ee9dcc4db1b486ea08.zip | |
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.c | 24 |
1 files changed, 8 insertions, 16 deletions
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c index c6514093c95a..1e85b6cc26aa 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--; |