lvm2/0087-device_mapper-vdo-V4-avoid-messaging.patch

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From 9399376608f5a81164c7bf9c8f3d724991a152b9 Mon Sep 17 00:00:00 2001
From: Zdenek Kabelac <zkabelac@redhat.com>
Date: Thu, 27 Oct 2022 23:58:42 +0200
Subject: [PATCH 087/115] device_mapper: vdo V4 avoid messaging
With V4 format build table line with compression and
deduplication and skip sending any messages to set up
these parameters.
(cherry picked from commit 36a923926c2c27c1a8a5ac262387d2a4d3e620f8)
---
device_mapper/libdm-deptree.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/device_mapper/libdm-deptree.c b/device_mapper/libdm-deptree.c
index 0445e1b4b..02a56c8e3 100644
--- a/device_mapper/libdm-deptree.c
+++ b/device_mapper/libdm-deptree.c
@@ -2894,12 +2894,15 @@ static int _vdo_emit_segment_line(struct dm_task *dmt,
(seg->vdo_params.write_policy == DM_VDO_WRITE_POLICY_ASYNC_UNSAFE) ? "async-unsafe" : "auto", // policy
seg->vdo_name);
} else {
- EMIT_PARAMS(pos, "V4 %s " FMTu64 " %u " FMTu64 " %u ",
+ EMIT_PARAMS(pos, "V4 %s " FMTu64 " %u " FMTu64 " %u "
+ "deduplication %s compression %s ",
data_dev,
seg->vdo_data_size / 8, // this parameter is in 4K units
seg->vdo_params.minimum_io_size * UINT32_C(512), // sector to byte units
seg->vdo_params.block_map_cache_size_mb * UINT64_C(256), // 1MiB -> 4KiB units
- seg->vdo_params.block_map_era_length);
+ seg->vdo_params.block_map_era_length,
+ seg->vdo_params.use_deduplication ? "on" : "off",
+ seg->vdo_params.use_compression ? "on" : "off");
}
EMIT_PARAMS(pos, "maxDiscard %u ack %u bio %u bioRotationInterval %u cpu %u hash %u logical %u physical %u",
@@ -4376,7 +4379,8 @@ int dm_tree_node_add_vdo_target(struct dm_tree_node *node,
seg->vdo_name = vdo_pool_name;
seg->vdo_data_size = data_size;
- node->props.send_messages = 2;
+ if (seg->vdo_version < 4)
+ node->props.send_messages = 2;
return 1;
}
--
2.41.0