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Fix: mm_page_alloc_extfrag instrumentation for kernel 3.18.10
[lttng-modules.git]
/
lttng-abi.c
diff --git
a/lttng-abi.c
b/lttng-abi.c
index 5823a1db042d6fa8aa5e88bef4a35235bf5eea4e..6993a46fb740039d22a647d1b13fef567b70dbc6 100644
(file)
--- a/
lttng-abi.c
+++ b/
lttng-abi.c
@@
-565,9
+565,11
@@
unsigned int lttng_metadata_ring_buffer_poll(struct file *filp,
if (finalized)
mask |= POLLHUP;
if (finalized)
mask |= POLLHUP;
+ mutex_lock(&stream->metadata_cache->lock);
if (stream->metadata_cache->metadata_written >
stream->metadata_out)
mask |= POLLIN;
if (stream->metadata_cache->metadata_written >
stream->metadata_out)
mask |= POLLIN;
+ mutex_unlock(&stream->metadata_cache->lock);
}
return mask;
}
return mask;
@@
-865,7
+867,6
@@
int lttng_abi_open_metadata_stream(struct file *channel_file)
metadata_stream->priv = buf;
stream_priv = metadata_stream;
metadata_stream->transport = channel->transport;
metadata_stream->priv = buf;
stream_priv = metadata_stream;
metadata_stream->transport = channel->transport;
- mutex_init(&metadata_stream->lock);
/*
* Since life-time of metadata cache differs from that of
/*
* Since life-time of metadata cache differs from that of
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