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mirror of git://sourceware.org/git/lvm2.git synced 2024-12-21 13:34:40 +03:00
lvm2/lib/config
Alasdair G Kergon 6407d184d1 cache: Store metadata size and checksum.
Refactor the recent metadata-reading optimisation patches.

Remove the recently-added cache fields from struct labeller
and struct format_instance.

Instead, introduce struct lvmcache_vgsummary to wrap the VG information
that lvmcache holds and add the metadata size and checksum to it.

Allow this VG summary information to be looked up by metadata size +
checksum.  Adjust the debug log messages to make it clear when this
shortcut has been successful.

(This changes the optimisation slightly, and might be extendable
further.)

Add struct cached_vg_fmtdata to format-specific vg_read calls to
preserve state alongside the VG across separate calls and indicate
if the details supplied match, avoiding the need to read and
process the VG metadata again.
2015-03-18 23:43:02 +00:00
..
config_settings.h system_id: enable the options in config file and command line 2015-03-05 09:50:43 -06:00
config.c cache: Store metadata size and checksum. 2015-03-18 23:43:02 +00:00
config.h config: use timestamp with nanosecond precision 2015-03-18 13:42:56 +01:00
defaults.h config: Adjust system_id defaults. 2015-02-23 21:20:51 +00:00