7e1e97ef29
1 OBS-URL: https://build.opensuse.org/request/show/318290 OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/drbd?expand=0&rev=44
69 lines
2.5 KiB
Diff
69 lines
2.5 KiB
Diff
From 5874ec7ba93074fdc3c2e878080a4b08d3408bbf Mon Sep 17 00:00:00 2001
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From: Nick Wang <nwang@suse.com>
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Date: Mon, 13 Jul 2015 10:46:29 +0800
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Subject: [Patch v2 00/10] Zero out devices instead of initial full sync
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Patch set is based on drbd-8.4 859e34a9, have
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already compiled/tested against SLES12.
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If this feature can be merged into upstream, please
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ignore v1, since v1 may caused pingACK timeout when
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zeroing out large device.
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Compare to v1, changes are as follow:
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1. Using drbd_device_post_work to zero out device as background
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task, so that it won't block pingACK when zeroing out
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large device.
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2. Fix bug of won't update peer node status if it finished
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zeroing out earier.
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3. Change some functions from file drbd_receive.c to
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drbd_worker.c and reorder the patch set.
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Full sync for drbd initial usually take a long time, especically
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when network become the bottleneck of the syncing. Simply skip
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the full sync with "--clear-bitmap" may not the perfect solution
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for all the cases, like using the bare device(no filesystem) to
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work,etc database,vm... This patche set can be used to zero out
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devices locally instead of a full sync to make the consistent
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block device. This approach can be useful when lack of network
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bandwidth to sync.
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The patches add one new option "--zap-devices" to "new-current-uuid"
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to zero out devices. It will start zeroing out devices of both
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side.
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Nick Wang (10):
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drbd: Fix the wrong logic of move history.
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drbd: Add options zap_devices to new-current-uuid
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drbd: Add a function to zero out drbd backing device.
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drbd: New packet P_ZERO_OUT.
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drbd: Functions to notify peer node to start
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zeroing out and zero out finished.
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drbd: Wapper for zeroing out device by worker.
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drbd: Add flag for drbd device work.
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drbd: Function to work with packet P_ZERO_OUT.
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drbd: Receive zero out command from peer node.
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drbd: Handle new-current-uuid --zap-devices.
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Signed-off-by: Nick Wang <nwang@suse.com>
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CC: Philipp Reisner <philipp.reisner@linbit.com>
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CC: Lars Ellenberg <lars.ellenberg@linbit.com>
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CC: drbd-dev@lists.linbit.com
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CC: linux-kernel@vger.kernel.org
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drbd/drbd_int.h | 13 ++++++++
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drbd/drbd_main.c | 51 ++++++++++++++++++++++++++--
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drbd/drbd_nl.c | 21 +++++++++++-
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drbd/drbd_protocol.h | 1 +
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drbd/drbd_receiver.c | 69 ++++++++++++++++++++++++++++++++++++++
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drbd/drbd_worker.c | 90 ++++++++++++++++++++++++++++++++++++++++++++++++++
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drbd/linux/drbd_genl.h | 1 +
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7 files changed, 243 insertions(+), 3 deletions(-)
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--
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1.8.4.5
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