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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>
hifive-unleashed-5.1
Arnaldo Carvalho de Melo 2018-11-07 10:54:06 -03:00
parent e312747b49
commit 4aa792de0b
1 changed files with 0 additions and 4 deletions
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4
tools/perf/examples/bpf/augmented_raw_syscalls.c
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@ -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;