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| author | Zdenek Kabelac <zkabelac@redhat.com> | 2021-12-15 11:45:22 +0100 |
|---|---|---|
| committer | Zdenek Kabelac <zkabelac@redhat.com> | 2021-12-20 16:13:28 +0100 |
| commit | 04fbffb116eaf5fb1b10785df92966d0083b270f (patch) | |
| tree | a413bc19386ae583d649d6559120c44a777dbefa /lib/commands | |
| parent | 0d67bc96fd15b9f3110bdc824749805c8392b04a (diff) | |
| download | lvm2-04fbffb116eaf5fb1b10785df92966d0083b270f.tar.gz | |
label: cache dm device list
Since we check for present DM devices - cache result for
futher use of checking presence of such device.
lvm2 uses cache result for label scan, but also when
it tries to activate or deactivate LV - however only simple
target 'striped' is reasonably supported.
Use disable_dm_devs to be able to control when lv_info()
get cache or uncached results.
TODO: support more type, however this is getting very complicated.
Diffstat (limited to 'lib/commands')
| -rw-r--r-- | lib/commands/toolcontext.c | 1 | ||||
| -rw-r--r-- | lib/commands/toolcontext.h | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/lib/commands/toolcontext.c b/lib/commands/toolcontext.c index c772dc6b1..301596482 100644 --- a/lib/commands/toolcontext.c +++ b/lib/commands/toolcontext.c @@ -2052,6 +2052,7 @@ void destroy_toolcontext(struct cmd_context *cmd) if (cmd->cft_def_hash) dm_hash_destroy(cmd->cft_def_hash); + dm_device_list_destroy(&cmd->cache_dm_devs); #ifndef VALGRIND_POOL if (cmd->linebuffer) { /* Reset stream buffering to defaults */ diff --git a/lib/commands/toolcontext.h b/lib/commands/toolcontext.h index 4d7d4630d..f16322d4e 100644 --- a/lib/commands/toolcontext.h +++ b/lib/commands/toolcontext.h @@ -203,6 +203,7 @@ struct cmd_context { unsigned event_activation:1; /* whether event_activation is set */ unsigned udevoutput:1; unsigned online_vg_file_removed:1; + unsigned disable_dm_devs:1; /* temporarily disable use of dm devs cache */ /* * Devices and filtering. @@ -214,6 +215,8 @@ struct cmd_context { const char *devicesfile; /* from --devicesfile option */ struct dm_list deviceslist; /* from --devices option, struct dm_str_list */ + struct dm_list *cache_dm_devs; /* cache with UUIDs from DM_DEVICE_LIST (when available) */ + /* * Configuration. */ |