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62533ae3fa
Port another optimization from pvscan -aay to vgchange -aay: "pvscan: only add device args to dev cache" This optimization avoids doing a full dev_cache_scan, and instead populates dev-cache with only the devices in the VG being activated. This involves shifting the use of pvs_online files from the hints interface up to the higher level label_scan interface. This specialized label_scan is structured around creating a list of devices from the pvs_online files. Previously, a list of all devices was created first, and then reduced based on the pvs_online files. The initial step of listing all devices was slow when thousands of devices are present on the system. This optimization extends the previous optimization that used pvs_online files to limit the devices that were actually scanned (i.e. reading to identify the device): "vgchange -aay: optimize device scan using pvs_online files" |
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| .. | ||
| activate | ||
| cache | ||
| cache_segtype | ||
| commands | ||
| config | ||
| datastruct | ||
| device | ||
| display | ||
| error | ||
| filters | ||
| format_text | ||
| freeseg | ||
| integrity | ||
| label | ||
| locking | ||
| log | ||
| lvmpolld | ||
| metadata | ||
| mirror | ||
| misc | ||
| mm | ||
| notify | ||
| properties | ||
| raid | ||
| report | ||
| snapshot | ||
| striped | ||
| thin | ||
| unknown | ||
| uuid | ||
| vdo | ||
| writecache | ||
| zero | ||
| Makefile.in | ||