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vdo: support v4 kernel target line

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Check and use new available table line v4, if kernel supports it.
This commit is contained in:
Zdenek Kabelac 2022-07-08 23:35:06 +02:00
parent a477490e81
commit 1c18ed3b4a
5 changed files with 37 additions and 14 deletions
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1
device_mapper/all.h
View File

@ -1049,6 +1049,7 @@ int dm_tree_node_add_integrity_target(struct dm_tree_node *node,
*/
int dm_tree_node_add_vdo_target(struct dm_tree_node *node,
uint64_t size,
uint32_t vdo_version,
const char *vdo_pool_name,
const char *data_uuid,
uint64_t data_size,

37
device_mapper/libdm-deptree.c
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@ -214,6 +214,7 @@ struct load_segment {
uint32_t device_id; /* Thin */
// VDO params
uint32_t vdo_version; /* VDO - version of target table line */
struct dm_tree_node *vdo_data; /* VDO */
struct dm_vdo_target_params vdo_params; /* VDO */
const char *vdo_name; /* VDO - device name is ALSO passed as table arg */
@ -2865,18 +2866,28 @@ static int _vdo_emit_segment_line(struct dm_task *dmt,
return 0;
}
EMIT_PARAMS(pos, "V2 %s " FMTu64 " %u " FMTu64 " %u %s %s %s "
"maxDiscard %u ack %u bio %u bioRotationInterval %u cpu %u hash %u logical %u physical %u",
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.use_metadata_hints ? "on" : "off" ,
(seg->vdo_params.write_policy == DM_VDO_WRITE_POLICY_SYNC) ? "sync" :
(seg->vdo_params.write_policy == DM_VDO_WRITE_POLICY_ASYNC) ? "async" :
(seg->vdo_params.write_policy == DM_VDO_WRITE_POLICY_ASYNC_UNSAFE) ? "async-unsafe" : "auto", // policy
seg->vdo_name,
if (seg->vdo_version < 4) {
EMIT_PARAMS(pos, "V2 %s " FMTu64 " %u " FMTu64 " %u %s %s %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.use_metadata_hints ? "on" : "off" ,
(seg->vdo_params.write_policy == DM_VDO_WRITE_POLICY_SYNC) ? "sync" :
(seg->vdo_params.write_policy == DM_VDO_WRITE_POLICY_ASYNC) ? "async" :
(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 ",
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);
}
EMIT_PARAMS(pos, "maxDiscard %u ack %u bio %u bioRotationInterval %u cpu %u hash %u logical %u physical %u",
seg->vdo_params.max_discard,
seg->vdo_params.ack_threads,
seg->vdo_params.bio_threads,
@ -4323,6 +4334,7 @@ void dm_tree_node_set_callback(struct dm_tree_node *dnode,
int dm_tree_node_add_vdo_target(struct dm_tree_node *node,
uint64_t size,
uint32_t vdo_version,
const char *vdo_pool_name,
const char *data_uuid,
uint64_t data_size,
@ -4344,6 +4356,7 @@ int dm_tree_node_add_vdo_target(struct dm_tree_node *node,
if (!_link_tree_nodes(node, seg->vdo_data))
return_0;
seg->vdo_version = vdo_version;
seg->vdo_params = *vtp;
seg->vdo_name = vdo_pool_name;
seg->vdo_data_size = data_size;

1
lib/metadata/segtype.h
View File

@ -353,6 +353,7 @@ int init_vdo_segtypes(struct cmd_context *cmd, struct segtype_library *seglib);
#endif
#define VDO_FEATURE_ONLINE_RENAME (1U << 0) /* version 6.2.3 */
#define VDO_FEATURE_VERSION4 (1U << 1) /* version 8.2.0 */
int init_writecache_segtypes(struct cmd_context *cmd, struct segtype_library *seglib);

10
lib/vdo/vdo.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2018-2019 Red Hat, Inc. All rights reserved.
* Copyright (C) 2018-2022 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
@ -364,6 +364,10 @@ static int _vdo_pool_add_target_line(struct dev_manager *dm,
uint32_t *pvmove_mirror_count __attribute__((unused)))
{
char *vdo_pool_name, *data_uuid;
unsigned attrs = 0;
if (seg->segtype->ops->target_present)
seg->segtype->ops->target_present(cmd, NULL, &attrs);
if (!seg_is_vdo_pool(seg)) {
log_error(INTERNAL_ERROR "Passed segment is not VDO pool.");
@ -381,6 +385,7 @@ static int _vdo_pool_add_target_line(struct dev_manager *dm,
/* VDO uses virtual size instead of its physical size */
if (!dm_tree_node_add_vdo_target(node, get_vdo_pool_virtual_size(seg),
!(attrs & VDO_FEATURE_VERSION4) ? 2 : 4,
vdo_pool_name, data_uuid, seg_lv(seg, 0)->size,
&seg->vdo_params))
return_0;
@ -390,7 +395,7 @@ static int _vdo_pool_add_target_line(struct dev_manager *dm,
static int _vdo_target_present(struct cmd_context *cmd,
const struct lv_segment *seg __attribute__((unused)),
unsigned *attributes __attribute__((unused)))
unsigned *attributes)
{
/* List of features with their kernel target version */
static const struct feature {
@ -401,6 +406,7 @@ static int _vdo_target_present(struct cmd_context *cmd,
const char *feature;
} _features[] = {
{ 6, 2, 3, VDO_FEATURE_ONLINE_RENAME, "online_rename" },
{ 8, 2, 0, VDO_FEATURE_VERSION4, "version4" },
};
static const char _lvmconf[] = "global/vdo_disabled_features";
static int _vdo_checked = 0;

2
test/shell/vdo-convert.sh
View File

@ -174,6 +174,8 @@ vdo create $VDOCONF --name "$VDONAME" --device "$LOOP" --vdoSlabSize 128M --vdoL
# Get VDO table line
dmsetup table "$VDONAME" | tr " " "\n" | sed -e '5,6d' -e '12d' | tee vdo-orig
aux lvmconf 'global/vdo_disabled_features = [ "version4" ]'
lvm_import_vdo -y --name $vg/$lv "$LOOP"
lvs -a $vg