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| author | Li Zefan <lizf@cn.fujitsu.com> | 2010-05-24 16:22:30 +0800 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2010-06-28 17:12:44 -0400 |
| commit | c9642c49aae1272d7c24008a40ae614470b957a6 (patch) | |
| tree | dd42bf76ad9652bc952c0332b14e0b3b7ea38d3c /kernel/trace/trace_syscalls.c | |
| parent | f384c954c9fe3d3c6fce5ae66b67f2ddd947d098 (diff) | |
| download | blackbird-op-linux-c9642c49aae1272d7c24008a40ae614470b957a6.tar.gz blackbird-op-linux-c9642c49aae1272d7c24008a40ae614470b957a6.zip | |
tracing: Use a global field list for all syscall exit events
All syscall exit events have the same fields.
The kernel size drops 2.5K:
text data bss dec hex filename
7018612 2034376 7251132 16304120 f8c7f8 vmlinux.o.orig
7018612 2031888 7251132 16301632 f8be40 vmlinux.o
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4BFA3746.8070100@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_syscalls.c')
| -rw-r--r-- | kernel/trace/trace_syscalls.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c index 34e35804304b..bac752f0cfb5 100644 --- a/kernel/trace/trace_syscalls.c +++ b/kernel/trace/trace_syscalls.c @@ -23,6 +23,9 @@ static int syscall_exit_register(struct ftrace_event_call *event, static int syscall_enter_define_fields(struct ftrace_event_call *call); static int syscall_exit_define_fields(struct ftrace_event_call *call); +/* All syscall exit events have the same fields */ +static LIST_HEAD(syscall_exit_fields); + static struct list_head * syscall_get_enter_fields(struct ftrace_event_call *call) { @@ -34,9 +37,7 @@ syscall_get_enter_fields(struct ftrace_event_call *call) static struct list_head * syscall_get_exit_fields(struct ftrace_event_call *call) { - struct syscall_metadata *entry = call->data; - - return &entry->exit_fields; + return &syscall_exit_fields; } struct trace_event_functions enter_syscall_print_funcs = { |
