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relay: fix cpu offline problem
relay_open() will close allocated buffers when failed. but if cpu offlined, some buffer will not be closed. this patch fixed it. and did cleanup for relay_reset() too. Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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@ -400,7 +400,7 @@ void relay_reset(struct rchan *chan)
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}
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mutex_lock(&relay_channels_mutex);
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for_each_online_cpu(i)
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for_each_possible_cpu(i)
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if (chan->buf[i])
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__relay_reset(chan->buf[i], 0);
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mutex_unlock(&relay_channels_mutex);
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@ -611,10 +611,9 @@ struct rchan *relay_open(const char *base_filename,
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return chan;
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free_bufs:
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for_each_online_cpu(i) {
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if (!chan->buf[i])
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break;
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relay_close_buf(chan->buf[i]);
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for_each_possible_cpu(i) {
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if (chan->buf[i])
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relay_close_buf(chan->buf[i]);
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}
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kref_put(&chan->kref, relay_destroy_channel);
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