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Commit 98ba4031 authored by Lai Jiangshan's avatar Lai Jiangshan Committed by Jens Axboe
Browse files

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: default avatarLai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
parent 68aee07f

kernel/relay.c

+4 −5
Original line number Diff line number Diff line
@@ -400,7 +400,7 @@ void relay_reset(struct rchan *chan) 
	}



	mutex_lock(&relay_channels_mutex);

	for_each_online_cpu(i)

	for_each_possible_cpu(i)

		if (chan->buf[i])

			__relay_reset(chan->buf[i], 0);

	mutex_unlock(&relay_channels_mutex);
@@ -611,9 +611,8 @@ struct rchan *relay_open(const char *base_filename, 
	return chan;



free_bufs:

	for_each_online_cpu(i) {

		if (!chan->buf[i])

			break;

	for_each_possible_cpu(i) {

		if (chan->buf[i])

			relay_close_buf(chan->buf[i]);

	}