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drbd: revert "delay probes", feature is being re-implemented differently

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It was a now abandoned attempt to throttle resync bandwidth
based on the delay it causes on the bulk data socket.
It has no userbase yet, and has been disabled by
9173465ccb51c09cc3102a10af93e9f469a0af6f already.
This removes the now unused code.

The basic feature, namely using up "idle" bandwith
of network and disk IO subsystem, with minimal impact
to application IO, is being reimplemented differently.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Lars Ellenberg
2010-08-03 20:20:20 +02:00
committed by Jens Axboe
parent 85f4cc17a6
commit e7f52dfb4f
8 changed files with 28 additions and 225 deletions
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19
drivers/block/drbd/drbd_proc.c
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@@ -73,21 +73,14 @@ static void drbd_syncer_progress(struct drbd_conf *mdev, struct seq_file *seq)
seq_printf(seq, "sync'ed:%3u.%u%% ", res / 10, res % 10);
/* if more than 1 GB display in MB */
if (mdev->rs_total > 0x100000L)
seq_printf(seq, "(%lu/%lu)M",
seq_printf(seq, "(%lu/%lu)M\n\t",
(unsigned long) Bit2KB(rs_left >> 10),
(unsigned long) Bit2KB(mdev->rs_total >> 10));
else
seq_printf(seq, "(%lu/%lu)K",
seq_printf(seq, "(%lu/%lu)K\n\t",
(unsigned long) Bit2KB(rs_left),
(unsigned long) Bit2KB(mdev->rs_total));
if (mdev->state.conn == C_SYNC_TARGET)
seq_printf(seq, " queue_delay: %d.%d ms\n\t",
mdev->data_delay / 1000,
(mdev->data_delay % 1000) / 100);
else if (mdev->state.conn == C_SYNC_SOURCE)
seq_printf(seq, " delay_probe: %u\n\t", mdev->delay_seq);
/* see drivers/md/md.c
* We do not want to overflow, so the order of operands and
* the * 100 / 100 trick are important. We do a +1 to be
@@ -135,14 +128,6 @@ static void drbd_syncer_progress(struct drbd_conf *mdev, struct seq_file *seq)
else
seq_printf(seq, " (%ld)", dbdt);
if (mdev->state.conn == C_SYNC_TARGET) {
if (mdev->c_sync_rate > 1000)
seq_printf(seq, " want: %d,%03d",
mdev->c_sync_rate / 1000, mdev->c_sync_rate % 1000);
else
seq_printf(seq, " want: %d", mdev->c_sync_rate);
}
seq_printf(seq, " K/sec\n");
}