diff options
Diffstat (limited to 'kernel/trace/trace_boot.c')
| -rw-r--r-- | kernel/trace/trace_boot.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/trace/trace_boot.c b/kernel/trace/trace_boot.c index 754e3cf2df3a..c22a152ef0b4 100644 --- a/kernel/trace/trace_boot.c +++ b/kernel/trace/trace_boot.c @@ -284,6 +284,12 @@ trace_boot_enable_tracer(struct trace_array *tr, struct xbc_node *node) if (tracing_set_tracer(tr, p) < 0) pr_err("Failed to set given tracer: %s\n", p); } + + /* Since tracer can free snapshot buffer, allocate snapshot here.*/ + if (xbc_node_find_value(node, "alloc_snapshot", NULL)) { + if (tracing_alloc_snapshot_instance(tr) < 0) + pr_err("Failed to allocate snapshot buffer\n"); + } } static void __init |