Commit 4aa792de authored Nov 07, 2018 by Arnaldo Carvalho de Melo

Revert "perf augmented_syscalls: Drop 'write', 'poll' for testing without self pid filter"

Now that we have the "filtered_pids" logic in place, no need to do this
rough filter to avoid the feedback loop from 'perf trace's own syscalls,
revert it.

This reverts commit 7ed71f124284359676b6496ae7db724fee9da753.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-88vh02cnkam0vv5f9vp02o3h@git.kernel.org

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent e312747b

tools/perf/examples/bpf/augmented_raw_syscalls.c

+0 −4

Original line number	Diff line number	Diff line
		@@ -44,9 +44,7 @@ struct augmented_filename {
		char value[256];
		};

		#define SYS_WRITE 1
		#define SYS_OPEN 2
		#define SYS_POLL 7
		#define SYS_OPENAT 257

		pid_filter(pids_filtered);
		@@ -106,8 +104,6 @@ int sys_enter(struct syscall_enter_args *args)
		* after the ctx memory access to prevent their down stream merging.
		*/
		switch (augmented_args.args.syscall_nr) {
		case SYS_WRITE:
		case SYS_POLL: return 0;
		case SYS_OPEN: filename_arg = (const void *)args->args[0];
		__asm__ __volatile__("": : :"memory");
		break;

Admin message