diff options
Diffstat (limited to 'lib/metadata/vdo_manip.c')
| -rw-r--r-- | lib/metadata/vdo_manip.c | 77 |
1 files changed, 58 insertions, 19 deletions
diff --git a/lib/metadata/vdo_manip.c b/lib/metadata/vdo_manip.c index b73d40d2c..19291c9d6 100644 --- a/lib/metadata/vdo_manip.c +++ b/lib/metadata/vdo_manip.c @@ -24,6 +24,7 @@ #include "lib/misc/lvm-exec.h" #include <sys/sysinfo.h> // sysinfo +#include <stdarg.h> const char *get_vdo_compression_state_name(enum dm_vdo_compression_state state) { @@ -647,39 +648,76 @@ static uint64_t _round_sectors_to_tib(uint64_t s) return (s + ((UINT64_C(1) << (40 - SECTOR_SHIFT)) - 1)) >> (40 - SECTOR_SHIFT); } -int check_vdo_constrains(struct cmd_context *cmd, uint64_t physical_size, - uint64_t virtual_size, struct dm_vdo_target_params *vtp) +__attribute__ ((format(printf, 3, 4))) +static int _vdo_snprintf(char **buf, size_t *bufsize, const char *format, ...) { + int n; + va_list ap; + + va_start(ap, format); + n = vsnprintf(*buf, *bufsize, format, ap); + va_end(ap); + + if (n < 0 || ((unsigned) n >= *bufsize)) + return -1; + + *buf += n; + *bufsize -= n; + + return n; +} + +int check_vdo_constrains(struct cmd_context *cmd, const struct vdo_pool_size_config *cfg) +{ + static const char *_split[] = { "", " and", ",", "," }; uint64_t req_mb, total_mb, available_mb; - uint64_t phy_mb = _round_sectors_to_tib(UINT64_C(268) * physical_size); // 268 MiB per 1 TiB of physical size - uint64_t virt_mb = _round_1024(UINT64_C(1638) * _round_sectors_to_tib(virtual_size)); // 1.6 MiB per 1 TiB - uint64_t cache_mb = _round_1024(UINT64_C(1177) * vtp->block_map_cache_size_mb); // 1.15 MiB per 1 MiB cache size + uint64_t phy_mb = _round_sectors_to_tib(UINT64_C(268) * cfg->physical_size); // 268 MiB per 1 TiB of physical size + uint64_t virt_mb = _round_1024(UINT64_C(1638) * _round_sectors_to_tib(cfg->virtual_size)); // 1.6 MiB per 1 TiB + uint64_t cache_mb = _round_1024(UINT64_C(1177) * cfg->block_map_cache_size_mb); // 1.15 MiB per 1 MiB cache size char msg[512]; + size_t mlen = sizeof(msg); + char *pmsg = msg; + int cnt, has_cnt; - if (cache_mb < 150) + if (cfg->block_map_cache_size_mb && (cache_mb < 150)) cache_mb = 150; // always at least 150 MiB for block map // total required memory for VDO target - req_mb = 38 + vtp->index_memory_size_mb + virt_mb + phy_mb + cache_mb; + req_mb = 38 + cfg->index_memory_size_mb + virt_mb + phy_mb + cache_mb; _get_memory_info(&total_mb, &available_mb); - (void)snprintf(msg, sizeof(msg), "VDO configuration needs %s RAM for physical volume size %s, " - "%s RAM for virtual volume size %s, %s RAM for block map cache size %s and " - "%s RAM for index memory.", - display_size(cmd, phy_mb << (20 - SECTOR_SHIFT)), - display_size(cmd, physical_size), - display_size(cmd, virt_mb << (20 - SECTOR_SHIFT)), - display_size(cmd, virtual_size), - display_size(cmd, cache_mb << (20 - SECTOR_SHIFT)), - display_size(cmd, ((uint64_t)vtp->block_map_cache_size_mb) << (20 - SECTOR_SHIFT)), - display_size(cmd, ((uint64_t)vtp->index_memory_size_mb) << (20 - SECTOR_SHIFT))); + has_cnt = cnt = (phy_mb ? 1 : 0) + + (virt_mb ? 1 : 0) + + (cfg->block_map_cache_size_mb ? 1 : 0) + + (cfg->index_memory_size_mb ? 1 : 0); + + if (phy_mb) + (void)_vdo_snprintf(&pmsg, &mlen, " %s RAM for physical volume size %s%s", + display_size(cmd, phy_mb << (20 - SECTOR_SHIFT)), + display_size(cmd, cfg->physical_size), _split[--cnt]); + + if (virt_mb) + (void)_vdo_snprintf(&pmsg, &mlen, " %s RAM for virtual volume size %s%s", + display_size(cmd, virt_mb << (20 - SECTOR_SHIFT)), + display_size(cmd, cfg->virtual_size), _split[--cnt]); + + if (cfg->block_map_cache_size_mb) + (void)_vdo_snprintf(&pmsg, &mlen, " %s RAM for block map cache size %s%s", + display_size(cmd, cache_mb << (20 - SECTOR_SHIFT)), + display_size(cmd, ((uint64_t)cfg->block_map_cache_size_mb) << (20 - SECTOR_SHIFT)), + _split[--cnt]); + + if (cfg->index_memory_size_mb) + (void)_vdo_snprintf(&pmsg, &mlen, " %s RAM for index memory", + display_size(cmd, ((uint64_t)cfg->index_memory_size_mb) << (20 - SECTOR_SHIFT))); if (req_mb > available_mb) { log_error("Not enough free memory for VDO target. %s RAM is required, but only %s RAM is available.", display_size(cmd, req_mb << (20 - SECTOR_SHIFT)), display_size(cmd, available_mb << (20 - SECTOR_SHIFT))); - log_print_unless_silent("%s", msg); + if (has_cnt) + log_print_unless_silent("VDO configuration needs%s.", msg); return 0; } @@ -687,7 +725,8 @@ int check_vdo_constrains(struct cmd_context *cmd, uint64_t physical_size, display_size(cmd, req_mb << (20 - SECTOR_SHIFT)), display_size(cmd, available_mb << (20 - SECTOR_SHIFT))); - log_verbose("%s", msg); + if (has_cnt) + log_verbose("VDO configuration needs%s.", msg); return 1; } |