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toollib: get_cache_params

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Enhance  get_cache_params() to read common cache args.
This commit is contained in:
Zdenek Kabelac 2015-07-23 15:35:12 +02:00
parent 6cde12a013
commit 969ee25a74
7 changed files with 36 additions and 44 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.128 -
===================================
Enhance toollib's get_cache_params().
Runtime detect presence of cache smq policy.
Add demo cache-mq and cache-smq profiles.
Add cmd profilable allocation/cache_policy,cache_settings,cache_mode.

2
lib/metadata/metadata-exported.h
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@ -901,7 +901,7 @@ struct lvcreate_params {
uint32_t min_recovery_rate; /* RAID */
uint32_t max_recovery_rate; /* RAID */
uint64_t feature_flags; /* cache */
const char *cache_mode; /* cache */
const char *policy_name; /* cache */
struct dm_config_tree *policy_settings; /* cache */

2
tools/lvchange.c
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@ -690,7 +690,7 @@ static int _lvchange_cachepolicy(struct cmd_context *cmd, struct logical_volume
goto out;
}
if (!get_cache_policy_params(cmd, &name, &settings))
if (!get_cache_params(cmd, NULL, &name, &settings))
goto_out;
if (!lv_cache_set_policy(lv, name, settings))
goto_out;

31
tools/lvconvert.c
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@ -50,7 +50,7 @@ struct lvconvert_params {
uint32_t stripes;
uint32_t stripe_size;
uint32_t read_ahead;
uint64_t feature_flags; /* cache_pool */
const char *cache_mode; /* cache */
const char *policy_name; /* cache */
struct dm_config_tree *policy_settings; /* cache */
@ -299,26 +299,14 @@ static int _read_pool_params(struct cmd_context *cmd, int *pargc, char ***pargv,
} else if (!strcmp(type_str, "thin-pool"))
thinpool = 1;
if (cachepool) {
const char *cachemode = arg_str_value(cmd, cachemode_ARG, NULL);
if (!cachemode)
cachemode = find_config_tree_str(cmd, allocation_cache_pool_cachemode_CFG, NULL);
if (!set_cache_pool_feature(&lp->feature_flags, cachemode))
return_0;
if (!get_cache_policy_params(cmd, &lp->policy_name, &lp->policy_settings)) {
log_error("Failed to parse cache policy and/or settings.");
return 0;
}
} else {
if (arg_from_list_is_set(cmd, "is valid only with cache pools",
cachepool_ARG, cachemode_ARG, -1))
return_0;
if (lp->cache) {
log_error("--cache requires --cachepool.");
return 0;
}
if (lp->cache && !cachepool) {
log_error("--cache requires --cachepool.");
return 0;
}
if ((lp->cache || cachepool) &&
!get_cache_params(cmd, &lp->cache_mode, &lp->policy_name, &lp->policy_settings)) {
log_error("Failed to parse cache policy and/or settings.");
return 0;
}
if (thinpool) {
@ -3080,7 +3068,6 @@ mda_write:
seg->chunk_size = lp->chunk_size;
seg->discards = lp->discards;
seg->zero_new_blocks = lp->zero ? 1 : 0;
seg->feature_flags = lp->feature_flags; /* cache-pool */
if ((lp->policy_name || lp->policy_settings) &&
!lv_cache_set_policy(seg->lv, lp->policy_name, lp->policy_settings))

19
tools/lvcreate.c
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@ -567,21 +567,14 @@ static int _read_mirror_and_raid_params(struct cmd_context *cmd,
static int _read_cache_params(struct cmd_context *cmd,
struct lvcreate_params *lp)
{
const char *cachemode;
if (!seg_is_cache(lp) && !seg_is_cache_pool(lp))
return 1;
if (!(cachemode = arg_str_value(cmd, cachemode_ARG, NULL)))
cachemode = find_config_tree_str(cmd, allocation_cache_pool_cachemode_CFG, NULL);
if (!set_cache_pool_feature(&lp->feature_flags, cachemode))
return_0;
if (!get_cache_policy_params(cmd, &lp->policy_name, &lp->policy_settings)) {
log_error("Failed to parse cache policy and/or settings.");
return 0;
}
if (!get_cache_params(cmd,
&lp->cache_mode,
&lp->policy_name,
&lp->policy_settings))
return_NULL;
return 1;
}
@ -1089,8 +1082,6 @@ static int _determine_cache_argument(struct volume_group *vg,
/* If cache args not given, use those from cache pool */
if (!arg_is_set(cmd, chunksize_ARG))
lp->chunk_size = first_seg(lv)->chunk_size;
if (!arg_is_set(cmd, cachemode_ARG))
lp->feature_flags = first_seg(lv)->feature_flags;
} else if (lv) {
/* Origin exists, create cache pool volume */
if (!validate_lv_cache_create_origin(lv))

18
tools/toollib.c
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@ -1399,8 +1399,10 @@ static int _validate_cachepool_params(const char *name,
return 1;
}
int get_cache_policy_params(struct cmd_context *cmd, const char **name,
struct dm_config_tree **settings)
int get_cache_params(struct cmd_context *cmd,
const char **mode,
const char **name,
struct dm_config_tree **settings)
{
const char *str;
struct arg_value_group_list *group;
@ -1408,7 +1410,14 @@ int get_cache_policy_params(struct cmd_context *cmd, const char **name,
struct dm_config_node *cn;
int ok = 0;
*name = arg_str_value(cmd, cachepolicy_ARG, DEFAULT_CACHE_POLICY);
if (mode)
*mode = arg_str_value(cmd, cachemode_ARG, NULL);
if (name)
*name = arg_str_value(cmd, cachepolicy_ARG, NULL);
if (!settings)
return 1;
dm_list_iterate_items(group, &cmd->arg_value_groups) {
if (!grouped_arg_is_set(group->arg_values, cachesettings_ARG))
@ -1429,6 +1438,9 @@ int get_cache_policy_params(struct cmd_context *cmd, const char **name,
goto_out;
}
if (!current)
return 1;
if (!(result = dm_config_flatten(current)))
goto_out;

7
tools/toollib.h
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@ -190,9 +190,10 @@ int get_pool_params(struct cmd_context *cmd,
int get_stripe_params(struct cmd_context *cmd, uint32_t *stripes,
uint32_t *stripe_size);
int get_cache_policy_params(struct cmd_context *cmd,
const char **name,
struct dm_config_tree **settings);
int get_cache_params(struct cmd_context *cmd,
const char **mode,
const char **name,
struct dm_config_tree **settings);
int change_tag(struct cmd_context *cmd, struct volume_group *vg,
struct logical_volume *lv, struct physical_volume *pv, int arg);