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Save the list of PVs in /run/lvm/hints. These hints
are used to reduce scanning in a number of commands
to only the PVs on the system, or only the PVs in a
requested VG (rather than all devices on the system.)
Native disk scanning is now both reduced and
async/parallel, which makes it comparable in
performance (and often faster) when compared
to lvm using lvmetad.
Autoactivation now uses local temp files to record
online PVs, and no longer requires lvmetad.
There should be no apparent command-level change
in behavior.
For reporting commands (pvs,vgs,lvs,pvdisplay,vgdisplay,lvdisplay)
we do not need to repeat the label scan of devices in vg_read if
they all had matching metadata in the initial label scan. The
data read by label scan can just be reused for the vg_read.
This cuts the amount of device i/o in half, from two reads of
each device to one. We have to be careful to avoid repairing
the VG if we've skipped rescanning. (The VG repair code is very
poor, and will be redone soon.)
The persistent filter should not be imported by any command that doesn't
use it so take addtional note of REQUIRES_FULL_LABEL_SCAN (for vgrename)
and introduce IGNORE_PERSISTENT_FILTER for vgscan and pvscan.
Clean up the handling of memory used for cmd defs
so it doesn't trip up memory debugging.
Allocate memory for commands[] from libmem.
Free temporary memory used by define_commands()
at the end of the function.
Clear all the command def state in in lvm_fin().
Commits a29bb6a14b
... 5c199d99f4
narrowed down on addressing the escaping of hyphens
in the dynamic creation of manuals whilst avoiding
them in creating help texts. This lead to a sequence
of slipping through hyphens adrressed by additional
patches in aforementioned commit series.
On the other hand, postprocessing dynamically man-generator
created and statically provided manuals catches all hyphens
in need of escaping.
Changes:
- revert the above commits whilst keeping man-generator
streamlining and the detection of any '\' when generating
help texts in order to avoid escapes to slip in
- Dynamically escape hyphens in manaual pages using sed(1)
in the respective Makefile targets
- remove any manually added escaping on hyphens from any
static manual sources or headers
As was recently done with relative signes for sizes/extents,
limit the signs used with the mirrors option, e.g.
lvcreate --mirrors now does not accept or advertise an
optional minus sign with the value. lvconvert --mirrors
accepts +|-.
OO_LVCREATE_CACHE accepts --cachemetadataformat.
Support new option --cachemetadataformat auto|1|2 for caching.
Word 'auto' can be also be given as '0'.
