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As API is passing structures by value, do not leave
the function which created buffer and keeps valid pointer
look like it would be some memory leak and move
free of buffer from inner function - makes more obvious,
how is the memory management handled.
Using report_type_t for bitmask is not correct, since we have not defined types
for all bit combinations - so switching to unsigned type, since values of
report_type_t enum are unsigned.
Make sure both hash tables are initialized before _read_sections() call.
Presents no functional change (since PV scan phase was not adding LV hashes),
but makes the code easier to handle mem failing case, and static analyzer is
hapier as well.
Adding at least stack traces with some FIXMEs for cases,
where we might want to do something cleaver - maybe fail command
or give user hints something is not going well ?
For remote_backup is stack probably 'good' enough for now.
We cannot do anything better here anyway - we are already in logging function,
so just ignore this issue here - it will most likely stop application later.
Code cannot proceed if oldname would be NULL.
Since lvmetad currently doesn't use logging mechanism of lvm to report
internal errors - stay with current code style of lvmetad which uses
plain asserts for cases like this.
Why using the order 69:
- Storage processing in general happens in 60-persistent-storage.rules,
including the blkid call that adds some usable information we can use
for filtering and speedup (these rules are part of upstream udev and
the order is preserved on most distros)
- There's still some other storage-related processing done after
60-persistent-storage.rules in general. These might add some detailed
storage-related information we might use to filter devices effectively
(e.g. MD udev rules, ...).
- We need lvmetad rules to be processed before any consumers can use the
output - so the metadata cache is ready soon enough (e.g. udisks rules).
- There's no official (upstream udev) document about assigning the order,
so this number is chosen in best belief it will suit all scenarios.
Should be faster then strncpy - since we could avoid clearing 4KB pages
with each strncpy(...,PATH_MAX).
Also it's easy to check whether string fit - and eventually avoid
to continue working we incomplete string.