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