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| author | Steven Rostedt (Red Hat) <srostedt@redhat.com> | 2013-03-06 15:27:24 -0500 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-03-15 00:35:51 -0400 |
| commit | a695cb5816228f86576f5f5c6809fdf8ed382ece (patch) | |
| tree | 922f12a1a2fab1efa16f74216d6883deeefd1b74 /kernel/trace/trace.h | |
| parent | 121aaee7b0a82605d33af200c7e9ebab6fd6e444 (diff) | |
| download | op-kernel-dev-a695cb5816228f86576f5f5c6809fdf8ed382ece.zip op-kernel-dev-a695cb5816228f86576f5f5c6809fdf8ed382ece.tar.gz | |
tracing: Prevent deleting instances when they are being read
Add a ref count to the trace_array structure and prevent removal
of instances that have open descriptors.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 1a456c2..f493182 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -219,6 +219,7 @@ struct trace_array { struct list_head systems; struct list_head events; struct task_struct *waiter; + int ref; }; enum { |
