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drbd: reset congestion information before reporting it in /proc/drbd 

We cache the congestion status in mdev->congestion_reason whenever
drbd_congested() was called.
Reset this cached info before reporting it when reading /proc/drbd.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Lars Ellenberg 2012-07-30 09:09:36 +02:00 committed by Philipp Reisner
parent 6f3465ed82
commit 8a94317071
1 changed files with 3 additions and 0 deletions
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3
drivers/block/drbd/drbd_proc.c
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@ -242,6 +242,9 @@ static int drbd_seq_show(struct seq_file *seq, void *v)
mdev->state.role == R_SECONDARY) {
seq_printf(seq, "%2d: cs:Unconfigured\n", i);
} else {
/* reset mdev->congestion_reason */
bdi_rw_congested(&mdev->rq_queue->backing_dev_info);
nc = rcu_dereference(mdev->tconn->net_conf);
wp = nc ? nc->wire_protocol - DRBD_PROT_A + 'A' : ' ';
seq_printf(seq,