X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=lib%2Fringbuffer%2Fring_buffer_frontend.c;h=1e4b98b677b994162198a83b840122198f22c4f3;hb=7c85d2eed6474032787e4e999c6226f15a18c221;hp=b22cb0fe1ced979c4581e31d486cc861e9eb5821;hpb=3dc33675410da9f13647d70e8b3e152f480f81b1;p=lttng-modules.git diff --git a/lib/ringbuffer/ring_buffer_frontend.c b/lib/ringbuffer/ring_buffer_frontend.c index b22cb0fe..1e4b98b6 100644 --- a/lib/ringbuffer/ring_buffer_frontend.c +++ b/lib/ringbuffer/ring_buffer_frontend.c @@ -1606,11 +1606,17 @@ void lib_ring_buffer_switch_slow(struct lib_ring_buffer *buf, enum switch_mode m } EXPORT_SYMBOL_GPL(lib_ring_buffer_switch_slow); +struct switch_param { + struct lib_ring_buffer *buf; + enum switch_mode mode; +}; + static void remote_switch(void *info) { - struct lib_ring_buffer *buf = info; + struct switch_param *param = info; + struct lib_ring_buffer *buf = param->buf; - lib_ring_buffer_switch_slow(buf, SWITCH_ACTIVE); + lib_ring_buffer_switch_slow(buf, param->mode); } static void _lib_ring_buffer_switch_remote(struct lib_ring_buffer *buf, @@ -1619,6 +1625,7 @@ static void _lib_ring_buffer_switch_remote(struct lib_ring_buffer *buf, struct channel *chan = buf->backend.chan; const struct lib_ring_buffer_config *config = &chan->backend.config; int ret; + struct switch_param param; /* * With global synchronization we don't need to use the IPI scheme. @@ -1639,8 +1646,10 @@ static void _lib_ring_buffer_switch_remote(struct lib_ring_buffer *buf, * switch. */ get_online_cpus(); + param.buf = buf; + param.mode = mode; ret = smp_call_function_single(buf->backend.cpu, - remote_switch, buf, 1); + remote_switch, ¶m, 1); if (ret) { /* Remote CPU is offline, do it ourself. */ lib_ring_buffer_switch_slow(buf, mode);