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Before, the status of the configuration check (config_def_check fn call)
was saved directly in global configuration definitinion array (as part
of the cfg_def_item_t/flags)
This patch introduces the "struct cft_check_handle" that defines
configuration check parameters as well as separate place to store
the status (status here means CFG_USED and CFG_VALID flags, formerly
saved in cfg_def_item_t/flags). This struct can hold config check
parameters as well as the status for each config tree separately,
thus making it possible to run several instances of config_def_check
without interference.
Just to make it more clear and also not to confuse
config_valid with check against config definition
(and its 'valid' flag within the config defintion tree).
The command to change the profile for existing VG/LV:
"vgchange/lvchange --profile <profile_name>"
The command to detach any existing profile from VG/LV:
"vgchange/lvchange --detachprofile"
If "vgcreate/lvcreate --profile <profile_name>" is used, the profile
name is automatically stored in metadata for making it possible to
load it automatically next time the VG/LV is used.
When placing the profile in a configuration cascade, this sequence is
used exactly:
CONFIG_STRING -> CONFIG_PROFILE -> CONFIG_FILE/MERGED_FILES
So if the profile is used, it overloads the lvm.conf (and any
existing tag configs). However, if "--config" is used to define
a custom configuration on command line, this overloads even the
profile config!
This patch adds --profile arg to lvm cmds and adds config/profile_dir
configuration setting to select the directory where profiles are stored
By default it's /etc/lvm/profile.
The profiles are added by using new "add_profile" fn and then loaded
using the "load_profile" fn. All profiles are stored in a cmd context
within the new "struct profile_params":
struct profile_params {
const char *dir;
struct profile *global_profile;
struct dm_list profiles_to_load;
struct dm_list profiles;
};
...where "dir" is the directory with profiles, "global_profile" is
the profile that is set globally via the --profile arg (IOW, not
set per VG/LV basis based on metadata record) and the "profiles"
is the list with loaded profiles.
A helper type that helps with identification of the configuration source
which makes handling the configuration cascade a bit easier, mainly
removing and adding configuration trees to cascade dynamically.
Currently, the possible types are:
CONFIG_UNDEFINED - configuration is not defined yet (not initialized)
CONFIG_FILE - one file configuration
CONFIG_MERGED_FILES - configuration that is a result of merging more files into one
CONFIG_STRING - configuration string typed on cmd line directly
CONFIG_PROFILE - profile configuration (the new type of configuration, patches will follow...)
Also, generalize existing "remove_overridden_config_tree" to work with
configuration type identification in a cascade. Before, it was just
the CONFIG_STRING we used. Now, we need some more to add in a
cascade (like the CONFIG_PROFILE). So, we have:
struct dm_config_tree *remove_config_tree_by_source(struct cmd_context *cmd, config_source_t source);
config_source_t config_get_source_type(struct dm_config_tree *cft);
... for removing the tree by its source type from the cascade and
simply getting the source type.
If the user would upconvert a linear LV to a mirror without specifying
the segment type ("--type mirror" vs "--type raid1"), the "mirror"
segment type would be chosen without consulting the 'default_mirror_segtype'
setting in lvm.conf. This is now used as the basis for determining
which should be used if left unspecified.
Support vgsplit for VGs with thin pools and thin volumes.
In case the thin data and thin metadata volumes are moved to a new VG,
move there also all related thin volumes and check that external origins
are also present in this new VG.
Fix the usecase when only PV list is specified.
With --poolmetadatasize PV list is used for metadata extents.
Without --poolmetadatasize PV list is used for 100% extension of LV.
Handle the case, when nothing could be resized (i.e. in dmeventd)
Support 'clasic' way of resizing of metadata LV.
Normally we disallow to work with internal 'invisible' devices.
But in this case we can make an exception and if user has some
special needs how to extend thin pool metadata LV - support it.
After resize of metadata LV, the pool will be suspended and resumed,
to be notified of this change.
Add support for lvresize of thin pool metadata device.
lvresize --poolmetadatasize +20 vgname/thinpool_lv
or
lvresize -L +20 vgname/thinpool_lv_tmeta
Where the second one allows all the args for resize (striping...)
and the first option resizes accoding to the last metadata lv segment.
Previously, we have relied on UUIDs alone, and on lvmcache to make getting a
"new copy" of VG metadata fast. If the code which triggers the activation has
the correct VG metadata at hand (the version which is currently on disk), it can
now hand it to the activation code directly.
Merge duplicate code that was validating lvcreate args
for creation of thin and snapshot.
Keep most of thin checks in _check_thin_parameters().
Update couple error messages.
This patch adds the ability to set the minimum and maximum I/O rate for
sync operations in RAID LVs. The options are available for 'lvcreate' and
'lvchange' and are as follows:
--minrecoveryrate <Rate> [bBsSkKmMgG]
--maxrecoveryrate <Rate> [bBsSkKmMgG]
The rate is specified in size/sec/device. If a suffix is not given,
kiB/sec/device is assumed. Setting the rate to 0 removes the preference.
Instead of seeing wierd overflows inside the lvm code,
giving false error messages, kill the user experiment in the begining.
Who needs to use more then 16EiB with lvm2 and 64bit anyway...
Check for mounted fs also for vgchange command, not just lvchange.
NOTE: Code is using lv_info() just like lvs_in_vg_opened().
It should be probably converted into lv_is_active_locally().
There are places where 'lv_is_active' was being used where it was
more correct to use 'lv_is_active_locally'. For example, when checking
for the existance of a kernel instance before asking for its status.
Most of the time these would work correctly. (RAID is only allowed on
non-clustered VGs at the moment, which means that 'lv_is_active' and
'lv_is_active_locally' would give the same result.) However, it is
more correct to use the proper variant and it helps with future
scenarios where targets might be allowed exclusively (or clustered) in
a cluster VG.
Accept --yes on all commands, even ones that don't today have prompts,
so that test scripts that don't care about interactive prompts no
longer need to deal with them.
But continue to mention --yes only in the command prototypes that
actually use it.
This is just a temporary fix to support allocation of -l%FREE.
The number of free extent serves to calculate estimated metadata
size. This value is then substracted twice to keep some
free space for recover.
