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| author | Steven Rostedt <rostedt@goodmis.org> | 2022-01-07 23:56:56 +0100 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2022-01-13 22:23:05 +0100 |
| commit | 3e2a56e6f639492311e0a8533f0a7aed60816308 (patch) | |
| tree | 4a87cd45525715ef9e3008e17ead48a41f5ebfc3 /kernel/trace/trace_syscalls.c | |
| parent | tracing: Fix mismatched comment in __string_len (diff) | |
| download | linux-3e2a56e6f639492311e0a8533f0a7aed60816308.tar.xz linux-3e2a56e6f639492311e0a8533f0a7aed60816308.zip | |
tracing: Have syscall trace events use trace_event_buffer_lock_reserve()
Currently, the syscall trace events call trace_buffer_lock_reserve()
directly, which means that it misses out on some of the filtering
optimizations provided by the helper function
trace_event_buffer_lock_reserve(). Have the syscall trace events call that
instead, as it was missed when adding the update to use the temp buffer
when filtering.
Link: https://lkml.kernel.org/r/20220107225839.823118570@goodmis.org
Cc: stable@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Tom Zanussi <zanussi@kernel.org>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Fixes: 0fc1b09ff1ff4 ("tracing: Use temp buffer when filtering events")
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_syscalls.c')
| -rw-r--r-- | kernel/trace/trace_syscalls.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c index 8bfcd3b09422..f755bde42fd0 100644 --- a/kernel/trace/trace_syscalls.c +++ b/kernel/trace/trace_syscalls.c @@ -323,8 +323,7 @@ static void ftrace_syscall_enter(void *data, struct pt_regs *regs, long id) trace_ctx = tracing_gen_ctx(); - buffer = tr->array_buffer.buffer; - event = trace_buffer_lock_reserve(buffer, + event = trace_event_buffer_lock_reserve(&buffer, trace_file, sys_data->enter_event->event.type, size, trace_ctx); if (!event) return; @@ -367,8 +366,7 @@ static void ftrace_syscall_exit(void *data, struct pt_regs *regs, long ret) trace_ctx = tracing_gen_ctx(); - buffer = tr->array_buffer.buffer; - event = trace_buffer_lock_reserve(buffer, + event = trace_event_buffer_lock_reserve(&buffer, trace_file, sys_data->exit_event->event.type, sizeof(*entry), trace_ctx); if (!event) |