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libdm: enforce writethrough mode for cleaner

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With "cleaner" policy always use 'writethrough' mode.
This commit is contained in:
Zdenek Kabelac 2015-10-13 14:06:15 +02:00
parent 5ac81657e5
commit 5695c6aca6
2 changed files with 3 additions and 1 deletions
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1
WHATS_NEW_DM
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@ -1,5 +1,6 @@
Version 1.02.110 -
======================================
Enforce writethrough mode for cleaner policy.
Add support for recognition and deactivation of MD devices to blkdeactivate.
Move target status functions out of libdm-deptree.
Correct use of max_write_behind parameter when generating raid target line.

3
libdm/libdm-deptree.c
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@ -3302,7 +3302,8 @@ int dm_tree_node_add_cache_target(struct dm_tree_node *node,
return_0;
seg->data_block_size = data_block_size;
seg->flags = feature_flags;
/* Enforce WriteThough mode for cleaner policy */
seg->flags = (strcmp(policy_name, "cleaner") == 0) ? DM_CACHE_FEATURE_WRITETHROUGH : feature_flags;
seg->policy_name = policy_name;
/* FIXME: better validation missing */