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ed3f07 |
WHATS_NEW | 1 +
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ed3f07 |
WHATS_NEW_DM | 4 ++++
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ed3f07 |
lib/metadata/lv.c | 5 +++++
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ed3f07 |
libdm/libdevmapper.h | 1 +
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ed3f07 |
libdm/libdm-targets.c | 2 ++
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ed3f07 |
5 files changed, 13 insertions(+)
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ed3f07 |
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ed3f07 |
diff --git a/WHATS_NEW b/WHATS_NEW
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ed3f07 |
index 106661f..d3da403 100644
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ed3f07 |
--- a/WHATS_NEW
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ed3f07 |
+++ b/WHATS_NEW
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ed3f07 |
@@ -1,5 +1,6 @@
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ed3f07 |
Version 2.02.186 -
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ed3f07 |
================================
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ed3f07 |
+ Report no_discard_passdown for cache LVs with lvs -o+kernel_discards.
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ed3f07 |
Prevent shared active mirror LVs with lvmlockd.
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ed3f07 |
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ed3f07 |
Version 2.02.185 - 13th May 2019
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ed3f07 |
diff --git a/WHATS_NEW_DM b/WHATS_NEW_DM
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ed3f07 |
index 7c74bfe..8c78724 100644
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ed3f07 |
--- a/WHATS_NEW_DM
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ed3f07 |
+++ b/WHATS_NEW_DM
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ed3f07 |
@@ -1,3 +1,7 @@
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ed3f07 |
+Version 1.02.160 -
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ed3f07 |
+================================
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ed3f07 |
+ Parsing of cache status understand no_discard_passdown.
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ed3f07 |
+
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ed3f07 |
Version 1.02.158 - 13th May 2019
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ed3f07 |
================================
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ed3f07 |
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ed3f07 |
diff --git a/lib/metadata/lv.c b/lib/metadata/lv.c
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ed3f07 |
index 2abe42d..538b292 100644
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ed3f07 |
--- a/lib/metadata/lv.c
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ed3f07 |
+++ b/lib/metadata/lv.c
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ed3f07 |
@@ -245,6 +245,11 @@ char *lvseg_kernel_discards_dup_with_info_and_seg_status(struct dm_pool *mem, co
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ed3f07 |
return 0;
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ed3f07 |
}
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ed3f07 |
s = get_pool_discards_name(d);
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ed3f07 |
+ } else if (lvdm->seg_status.type == SEG_STATUS_CACHE) {
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ed3f07 |
+ if (lvdm->seg_status.cache->feature_flags &
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ed3f07 |
+ DM_CACHE_FEATURE_NO_DISCARD_PASSDOWN) {
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ed3f07 |
+ s = "nopassdown";
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ed3f07 |
+ }
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ed3f07 |
}
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ed3f07 |
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ed3f07 |
if (!(ret = dm_pool_strdup(mem, s))) {
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ed3f07 |
diff --git a/libdm/libdevmapper.h b/libdm/libdevmapper.h
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ed3f07 |
index 19032d7..e885f52 100644
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ed3f07 |
--- a/libdm/libdevmapper.h
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ed3f07 |
+++ b/libdm/libdevmapper.h
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ed3f07 |
@@ -1893,6 +1893,7 @@ int dm_tree_node_add_raid_target_with_params_v2(struct dm_tree_node *node,
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ed3f07 |
#define DM_CACHE_FEATURE_WRITETHROUGH 0x00000002
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ed3f07 |
#define DM_CACHE_FEATURE_PASSTHROUGH 0x00000004
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ed3f07 |
#define DM_CACHE_FEATURE_METADATA2 0x00000008 /* cache v1.10 */
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ed3f07 |
+#define DM_CACHE_FEATURE_NO_DISCARD_PASSDOWN 0x00000010
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ed3f07 |
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ed3f07 |
struct dm_config_node;
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ed3f07 |
/*
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ed3f07 |
diff --git a/libdm/libdm-targets.c b/libdm/libdm-targets.c
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ed3f07 |
index 8766789..d0a8b43 100644
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ed3f07 |
--- a/libdm/libdm-targets.c
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ed3f07 |
+++ b/libdm/libdm-targets.c
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ed3f07 |
@@ -296,6 +296,8 @@ int dm_get_status_cache(struct dm_pool *mem, const char *params,
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ed3f07 |
s->feature_flags |= DM_CACHE_FEATURE_PASSTHROUGH;
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ed3f07 |
else if (!strncmp(p, "metadata2 ", 10))
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ed3f07 |
s->feature_flags |= DM_CACHE_FEATURE_METADATA2;
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ed3f07 |
+ else if (!strncmp(p, "no_discard_passdown ", 20))
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ed3f07 |
+ s->feature_flags |= DM_CACHE_FEATURE_NO_DISCARD_PASSDOWN;
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ed3f07 |
else
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ed3f07 |
log_error("Unknown feature in status: %s", params);
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ed3f07 |
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