shaba/lvm2
1
0
Fork 0
mirror of git://sourceware.org/git/lvm2.git synced 2024-12-30 17:18:21 +03:00
Code Releases Activity

vdo: refactor code

Browse Source 
Shuffle code to use prepare_exec_args().
Simplify generation of options string within a single char buffer.
This commit is contained in:
Zdenek Kabelac 2023-07-16 20:03:15 +02:00
parent 4d2311655b
commit 409a79621a
1 changed files with 21 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

69
lib/metadata/vdo_manip.c
View File

@ -243,21 +243,22 @@ static int _format_vdo_pool_data_lv(struct logical_volume *data_lv,
uint64_t *logical_size)
{
char *dpath, *c;
const struct dm_config_node *cn;
const struct dm_config_value *cv;
struct pipe_data pdata;
uint64_t logical_size_aligned = 1;
FILE *f;
uint64_t lb;
unsigned slabbits;
unsigned reformatting = 0;
int args = 1;
char buf_args[5][128];
int args = 0;
char buf[256]; /* buffer for short disk header (64B) */
const char *argv[19] = { /* Max supported args */
char *buf_pos = buf;
const char *argv[DEFAULT_MAX_EXEC_ARGS + 9] = { /* Max supported args */
find_config_tree_str_allow_empty(data_lv->vg->cmd, global_vdo_format_executable_CFG, NULL)
};
if (!prepare_exec_args(data_lv->vg->cmd, argv, &args, global_vdo_format_options_CFG))
return_0;
if (!(dpath = lv_path_dup(data_lv->vg->cmd->mem, data_lv))) {
log_error("Failed to build device path for VDO formatting of data volume %s.",
display_lvname(data_lv));
@ -266,59 +267,31 @@ static int _format_vdo_pool_data_lv(struct logical_volume *data_lv,
if (*logical_size) {
logical_size_aligned = 0;
if (dm_snprintf(buf_args[args], sizeof(buf_args[0]), "--logical-size=" FMTu64 "K",
(*logical_size / 2)) < 0)
return_0;
argv[args] = buf_args[args];
args++;
argv[++args] = buf_pos;
buf_pos += 1 + dm_snprintf(buf_pos, 30, "--logical-size=" FMTu64 "K",
(*logical_size / 2));
}
slabbits = 31 - clz(vtp->slab_size_mb / DM_VDO_BLOCK_SIZE * 2 * 1024); /* to KiB / block_size */
log_debug("Slab size %s converted to %u bits.",
display_size(data_lv->vg->cmd, vtp->slab_size_mb * UINT64_C(2 * 1024)), slabbits);
if (dm_snprintf(buf_args[args], sizeof(buf_args[0]), "--slab-bits=%u", slabbits) < 0)
return_0;
argv[args] = buf_args[args];
args++;
argv[++args] = buf_pos;
buf_pos += 1 + dm_snprintf(buf_pos, 30, "--slab-bits=%u", slabbits);
/* Convert size to GiB units or one of these strings: 0.25, 0.50, 0.75 */
if (vtp->index_memory_size_mb >= 1024) {
if (dm_snprintf(buf_args[args], sizeof(buf_args[0]), "--uds-memory-size=%u",
vtp->index_memory_size_mb / 1024) < 0)
return_0;
} else if (dm_snprintf(buf_args[args], sizeof(buf_args[0]), "--uds-memory-size=0.%u",
(vtp->index_memory_size_mb < 512) ? 25 :
(vtp->index_memory_size_mb < 768) ? 50 : 75) < 0)
return_0;
argv[++args] = buf_pos;
if (vtp->index_memory_size_mb >= 1024)
buf_pos += 1 + dm_snprintf(buf_pos, 30, "--uds-memory-size=%u",
vtp->index_memory_size_mb / 1024);
else
buf_pos += 1 + dm_snprintf(buf_pos, 30, "--uds-memory-size=0.%2u",
(vtp->index_memory_size_mb < 512) ? 25 :
(vtp->index_memory_size_mb < 768) ? 50 : 75);
argv[args] = buf_args[args];
args++;
if (vtp->use_sparse_index) {
if (dm_snprintf(buf_args[args], sizeof(buf_args[0]), "--uds-sparse") < 0)
return_0;
argv[args] = buf_args[args];
args++;
}
/* Any other user opts add here */
if (!(cn = find_config_tree_array(data_lv->vg->cmd, global_vdo_format_options_CFG, NULL))) {
log_error(INTERNAL_ERROR "Unable to find configuration for vdoformat command options.");
return 0;
}
for (cv = cn->v; cv && args < 16; cv = cv->next) {
if (cv->type != DM_CFG_STRING) {
log_error("Invalid string in config file: "
"global/vdoformat_options.");
return 0;
}
if (cv->v.str[0])
argv[++args] = cv->v.str;
}
if (vtp->use_sparse_index)
argv[++args] = "--uds-sparse";
/* Only unused VDO data LV could be activated and wiped */
if (!dm_list_empty(&data_lv->segs_using_this_lv)) {