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| author | Keir Fraser <keir@xen.org> | 2011-04-06 15:52:50 +0100 |
|---|---|---|
| committer | Keir Fraser <keir@xen.org> | 2011-04-06 15:52:50 +0100 |
| commit | e15c160c0f6ee65e0160826d8a3987a65ccfa9ec (patch) | |
| tree | 63d428f29490aa7112e9c7ea36dc6ed82702b536 /xen/common/trace.c | |
| parent | 620ce29a2d454c131498aebbc927510c63592735 (diff) | |
| download | xen-e15c160c0f6ee65e0160826d8a3987a65ccfa9ec.tar.gz xen-e15c160c0f6ee65e0160826d8a3987a65ccfa9ec.tar.bz2 xen-e15c160c0f6ee65e0160826d8a3987a65ccfa9ec.zip | |
xentrace: Move register_cpu_notifier() call into boot-time init.
We can't do it lazily from alloc_trace_bufs() as that gets called
later if tracing is enabled later by dom0.
Signed-off-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'xen/common/trace.c')
| -rw-r--r-- | xen/common/trace.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/xen/common/trace.c b/xen/common/trace.c index 4225f0413f..373a3dc022 100644 --- a/xen/common/trace.c +++ b/xen/common/trace.c @@ -225,8 +225,6 @@ static int alloc_trace_bufs(unsigned int pages) t_buf_highwater = data_size >> 1; /* 50% high water */ opt_tbuf_size = pages; - register_cpu_notifier(&cpu_nfb); - printk("xentrace: initialised\n"); wmb(); /* above must be visible before tb_init_done flag set */ tb_init_done = 1; @@ -309,6 +307,8 @@ int trace_will_trace_event(u32 event) */ void __init init_trace_bufs(void) { + register_cpu_notifier(&cpu_nfb); + if ( opt_tbuf_size && alloc_trace_bufs(opt_tbuf_size) ) { printk(XENLOG_INFO "xentrace: allocation size %d failed, disabling\n", |