summaryrefslogtreecommitdiffstats
path: root/mm
diff options
context:
space:
mode:
authorOleg Nesterov <oleg@redhat.com>2013-07-26 19:25:32 +0200
committerSteven Rostedt <rostedt@goodmis.org>2013-07-29 22:04:30 -0400
commit1a11126bcb7c93c289bf3218fa546fd3b0c0df8b (patch)
treeffbfb4e73894c00bf674ece92c2531505a877a1b /mm
parent5ae90d8e467e625e447000cb4335c4db973b1095 (diff)
downloadlinux-1a11126bcb7c93c289bf3218fa546fd3b0c0df8b.tar.bz2
tracing: Turn event/id->i_private into call->event.type
event_id_read() is racy, ftrace_event_call can be already freed by trace_remove_event_call() callers. Change event_create_dir() to pass "data = call->event.type", this is all event_id_read() needs. ftrace_event_id_fops no longer needs tracing_open_generic(). We add the new helper, event_file_data(), to read ->i_private, it will have more users. Note: currently ACCESS_ONCE() and "id != 0" check are not needed, but we are going to change event_remove/rmdir to clear ->i_private. Link: http://lkml.kernel.org/r/20130726172532.GA3605@redhat.com Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions