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| author | Zdenek Kabelac <zkabelac@redhat.com> | 2019-10-04 15:09:11 +0200 |
|---|---|---|
| committer | Zdenek Kabelac <zkabelac@redhat.com> | 2019-10-04 17:31:55 +0200 |
| commit | 862aa06e5eb28c0a9a163f109bdaeba9729243bc (patch) | |
| tree | e5dbef7e35f1a0341d69da518ca4a6d414a4cfe3 | |
| parent | 7ca9be034f451bc9a87b36dce4f9979db5a67efd (diff) | |
| download | lvm2-862aa06e5eb28c0a9a163f109bdaeba9729243bc.tar.gz | |
vdo: remember configure VDO write policy in metadata
Store write_policy in vdopool metadata.
In case it's not present 'auto' is selected.
| -rw-r--r-- | lib/vdo/vdo.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/vdo/vdo.c b/lib/vdo/vdo.c index b4cb578be..01d95f7f7 100644 --- a/lib/vdo/vdo.c +++ b/lib/vdo/vdo.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2018 Red Hat, Inc. All rights reserved. + * Copyright (C) 2018-2019 Red Hat, Inc. All rights reserved. * * This file is part of LVM2. * @@ -189,6 +189,7 @@ static void _vdo_pool_display(const struct lv_segment *seg) log_print(" # Logical threads\t%u", (unsigned) vtp->logical_threads); log_print(" # Physical threads\t%u", (unsigned) vtp->physical_threads); log_print(" Max discard\t%u", (unsigned) vtp->max_discard); + log_print(" Write policy\t%s", get_vdo_write_policy_name(vtp->write_policy)); } /* reused as _vdo_text_import_area_count */ @@ -280,6 +281,12 @@ static int _vdo_pool_text_import(struct lv_segment *seg, if (!dm_config_get_uint32(n, "physical_threads", &vtp->physical_threads)) return _bad_field("physical_threads"); + if (dm_config_has_node(n, "write_policy")) { + if (!(str = dm_config_find_str(n, "write_policy", NULL)) || + !set_vdo_write_policy(&vtp->write_policy, str)) + return _bad_field("write_policy"); + } else + vtp->write_policy = DM_VDO_WRITE_POLICY_AUTO; if (!set_lv_segment_area_lv(seg, 0, data_lv, 0, LV_VDO_POOL_DATA)) return_0; @@ -334,6 +341,9 @@ static int _vdo_pool_text_export(const struct lv_segment *seg, struct formatter outf(f, "logical_threads = %u", (unsigned) vtp->logical_threads); outf(f, "physical_threads = %u", (unsigned) vtp->physical_threads); + if (vtp->write_policy != DM_VDO_WRITE_POLICY_AUTO) + outf(f, "write_policy = %s", get_vdo_write_policy_name(vtp->write_policy)); + return 1; } |