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Commit Graph

97 Commits

Author SHA1 Message Date
Peter Rajnoha
52af0dfbc0 report: display 'unknown' value for LVSINFO fields if unable to get info
If the lv_info call fails for whatever reason/INFO dm ioctl fails or
the dm driver communication is disabled (--driverloaded n), make
sure we always display "unknown" for LVSINFO fields as that's exactly
what happens - we don't know the state.

Before the patch:

$ lvs -o name,device_open --driverloaded n
  WARNING: Activation disabled. No device-mapper interaction will be attempted.
  Command failed with status code 5.

With this patch applied:

$ lvs -o name,device_open --driverloaded n
  WARNING: Activation disabled. No device-mapper interaction will be attempted.
  LV        DevOpen
  lvol1        unknown
2014-07-11 10:18:59 +02:00
Peter Rajnoha
9e1c4a3818 report: addendum for previous commit
Really call lv_info only if needed!
2014-07-07 16:28:13 +02:00
Peter Rajnoha
83b55c2dfb report: fix segfault while reporting PV/LV segment fields together with LV fields needeing device status (LVSINFO)
There was missing lv_info call for situations where there were
mixed PV/LV segment fields together with LVSINFO fields which
require extra lv_info call for LV device status. This ended up
with NULL lvinfo passed to the field reporting functions, hence
the segfault.
2014-07-07 15:54:13 +02:00
Peter Rajnoha
ecb2be5d16 reporter: add separate LVSINFO report type
LVSINFO is exactly the same as existing LVS report type,
but it has the "struct lvinfo" populated in addition for
use - this is useful for fields that display the status
of the LV device itself (e.g. suspended state, tables
present/missing...).

Currently, such properties are reported within the "lv_attr"
field so separation is unnecessary - the "lvinfo" call
to populate the "struct lvinfo" is directly a part of the
field reporting function - _lvstatus_disp/lv_attr_dup.

With upcoming patches, we'd like the lv_attr field bits
to be separated into their own fields. To avoid calling
"lvinfo" fn as many times as there are fields requiring
the "lv_info" structure to be populated while reporting
one row related to one LV, we're separating former LVS
into LVS and LVSINFO report type. With this, there's
just one "lvinfo" call for one report row and LV reporting
fields will take the info needed from this struct then,
hence reusing it and not calling "lvinfo" fn on their own.
2014-07-04 15:40:17 +02:00
Peter Rajnoha
cd7325f18d report: make "help" and "?" field implicit
Making "help" and "?" implicit also simplifies code since the
dm_report_init caller (lvm/dmsetup) doesn't need to check on
dm_report_init return whether "help" or "?" was hit while parsing
fields/sort keys in libdevmapper.

The libdevmapper now sets internal "RH_ALREADY_REPORTED" flag
after it reports the "help" or "?" implicit field. Then libdevmapper
itself checks for this flag in dm_report_object and if found,
the actual reporting is skipped (because the "help" implicit field
was reported instead of the actual report).
2014-06-19 16:09:31 +02:00
Peter Rajnoha
6d667adeea report: select: add help for creating selections
The "<lvm command> -S/--select help" shows help (including list of fields to match against):

  ...field list here including the field type name...

  Selection operands
  ------------------
    field               - Reporting field.
    number              - Non-negative integer value.
    size                - Floating point value with units specified.
    string              - Characters quoted by ' or " or unquoted.
    string list         - Strings enclosed by [ ] and elements delimited by either
                          "all items must match" or "at least one item must match" operator.
    regular expression  - Characters quoted by ' or " or unquoted.

  Selection operators
  -------------------
    Comparison operators:
        =~  - Matching regular expression.
        !~  - Not matching regular expression.
         =  - Equal to.
        !=  - Not equal to.
        >=  - Greater than or equal to.
         >  - Greater than
        <=  - Less than or equal to.
         <  - Less than.

    Logical and grouping operators:
        &&  - All fields must match
         ,  - All fields must match
        ||  - At least one field must match
         #  - At least one field must match
         !  - Logical negation
         (  - Left parenthesis
         )  - Right parenthesis
         [  - List start
         ]  - List end
2014-06-17 16:27:21 +02:00
Peter Rajnoha
5b734a0ea1 report: select: add --select arg to pvs, vgs and lvs 2014-06-17 16:27:20 +02:00
Zdenek Kabelac
922f884abe report: avoid passing NULL label
Internal reporting function cannot handle NULL reporting value,
so ensure there is at least dummy label.

So move dummy_lable from tools/reporter.c and use it for all
report_object() calls in lib/report/report.c.
(Fixes RHBZ 1108394)

Simlify lvm_report_object initialization.
2014-06-12 11:55:58 +02:00
Peter Rajnoha
7c86131233 report: export DM_REPORT_FIELD_RESERVED_NAME_{HELP,HELP_ALT} and show help on '<lvm_command> -O help'
Share DM_REPORT_FIELD_RESERVED_NAME_{HELP,HELP_ALT} between libdm and
any libdm user to handle reserved field names, in this case the virtual
field name to show help instead of failing on unrecognized field.
The libdm user also needs to check the field name so it can fire
proper code in this case (cleanup, exit etc.).
2014-05-15 10:58:14 +02:00
Alasdair G Kergon
d36f721bb9 reports: FIXME for unnecessary cache wipes. 2014-04-04 01:41:06 +01:00
Petr Rockai
490226fc47 pvs: Wipe persistent filters when given a device argument. 2014-04-01 14:46:22 +02:00
Alasdair G Kergon
5a450eab6a pvs: fix segfaults with orphans
Several fields used to display 0 if undefined.  Recent changes
to the way the fields are reported threw away some tests for
valid pointers, leading to segfaults with 'pvs -o all'.

Reinstate the original behaviour.
2014-01-14 03:17:27 +00:00
Petr Rockai
9c445f3c2c reporter: Set labeller on dummy labels (fixes missing fmt field). 2014-01-13 11:45:38 +01:00
Zdenek Kabelac
62db5c1e48 cleanup: make gcc happier with initializers
Whole struct will be set to 0, just
if the first member is array, gcc gives warning
we should initialized this element as array,
so pick any later simple type.
2013-11-22 21:00:56 +01:00
Petr Rockai
ae337d472e report: Print UUIDs for missing PVs when possible. 2013-11-17 22:36:13 +01:00
Petr Rockai
14ffc9d4df reporter: Adapt pvseg reporting to label-type fields. 2013-11-17 21:43:06 +01:00
Petr Rockai
2294282184 reporter: Deal correctly with dummy PVs/labels. 2013-11-17 21:43:06 +01:00
Petr Rockai
67a7b7a87d report: Iterate over labels instead of PVs for label-only reports. 2013-11-17 21:43:06 +01:00
Petr Rockai
7e33f50cea report: Add a proper "label" field type. 2013-11-17 21:41:27 +01:00
Alasdair G Kergon
baf95bbff7 cmdline: Add --ignoreskippedcluster.
Accept --ignoreskippedcluster with pvs, vgs, lvs, pvdisplay, vgdisplay,
lvdisplay, vgchange and lvchange to avoid the 'Skipping clustered
VG' errors when requesting information about a clustered VG
without using clustered locking and still exit with success.

The messages can still be seen with -v.
2013-10-01 21:20:10 +01:00
Alasdair G Kergon
a3a5f58c21 reporting: Add devtypes command.
Add internal devtypes reporting command to display built-in recognised
block device types.  (The output does not include any additional
types added by a configuration file.)

> lvm devtypes -o help
  Device Types Fields
  -------------------
    devtype_all            - All fields in this section.
    devtype_name           - Name of Device Type exactly as it appears in /proc/devices.
    devtype_max_partitions - Maximum number of partitions. (How many device minor numbers get reserved for each device.)
    devtype_description    - Description of Device Type.

> lvm devtypes
  DevType       MaxParts Description
  aoe                 16 ATA over Ethernet
  ataraid             16 ATA Raid
  bcache               1 bcache block device cache
  blkext               1 Extended device partitions
...
2013-09-18 01:09:15 +01:00
Alasdair G Kergon
dd302daf64 report: remove LV_CREATE_PARAMS report type
Remove LV_CREATE_PARAMS from lib/report as it is not a type of metadata.
Added by 4d5de8322b
2013-07-09 02:06:29 +01:00
Tony Asleson
4d5de8322b lvm2app: Add thin and thin pool lv creation V5
Add thin and thin pool lv creation support to lvm library

This is Mohan's thinp patch, re-worked to include suggestions
from Zdenek and Mohan.

V2: Remove const lvm_lv_params_create_thin
    Add const lvm_lv_params_skip_zero_get

V3: Changed get/set to use generic functions like current
    property

V4: Corrected macro in properties.c

V5: Fixed a bug in liblvm/lvm_lv.c function lvm_lv_create.
    incorrectly used pool instead of lv_name when doing the
    find_lv_in_vg call.

Based on work done by M. Mohan Kumar <mohan@in.ibm.com>

Signed-off-by: Tony Asleson <tasleson@redhat.com>
2013-07-02 14:24:33 -05:00
Peter Rajnoha
d6a91da4be config: add profile arg to find_config_tree_bool 2013-07-02 15:19:09 +02:00
Peter Rajnoha
06dd66af54 config: add profile arg to find_config_tree_str 2013-07-02 15:19:09 +02:00
Zdenek Kabelac
47419d21ac cleanup: stack usage
Shortening code with macros return_0, return_NULL.
Add some missing stack prints in error paths.
2013-07-01 23:11:14 +02:00
Zdenek Kabelac
b90450b8a0 cleanup: introduce return_ECMD_FAILED macro
Use shortening macro for common code sequence
stack;
return ECMD_FAILED;
2013-07-01 23:10:33 +02:00
Zdenek Kabelac
deb3c93a19 cleanup: simplify
Use simplier sprintf.
2013-05-03 15:44:14 +02:00
Peter Rajnoha
386886f71c config: refer to config nodes using assigned IDs
For example, the old call and reference:

  find_config_tree_str(cmd, "devices/dir", DEFAULT_DEV_DIR)

...now becomes:

  find_config_tree_str(cmd, devices_dir_CFG)

So we're referring to the named configuration ID instead
of passing the configuration path and the default value
is taken from central config definition in config_settings.h
automatically.
2013-03-06 10:14:33 +01:00
Zdenek Kabelac
73e62cdc11 Add internal error for unsupported code paths
Patch mainly helps static analyzers to better work with code paths
lvm code should never trigger.
2012-02-13 11:25:56 +00:00
Zdenek Kabelac
077a6755ff Replace free_vg with release_vg
Move the free_vg() to  vg.c  and replace free_vg  with release_vg
and make the _free_vg internal.

Patch is needed for sharing VG in vginfo cache so the release_vg function name
is a better fit here.
2011-08-10 20:25:29 +00:00
Alasdair Kergon
2f25c320fb Use empty string instead of /dev// for LV path when there's no VG.
Don't allocate unused VG mempool in _pvsegs_sub_single.
2011-03-09 12:44:42 +00:00
Zdenek Kabelac
aec2115410 Const fixing
Fixing some const warnings - with API change in:

int vg_extend(struct volume_group *vg, int pv_count, const char *const *pv_names,

Change is needed - as lvm2api expects const behaviour here.
So vg_extend() is doing local strdup for unescaping.

skip_dev_dir return const char* from const char* vg_name.

Rest of the patch is cleanup of related warnings.

Also using dm_report_filed_string() API change to simplify
casting in _string_disp and _lvname_disp.
2011-02-18 14:47:28 +00:00
Alasdair Kergon
2b82bd79f5 Rename vg_release to free_vg. 2010-12-08 20:50:48 +00:00
Petr Rockai
dd5b5fb794 The _free_vg that is created as a placeholder when reporting segments in pvs
was lacking the (vgmem) pool. We now create that pool. There is at least one
more such VG (_dummy_vg) which is pool-less. I am not sure what is the right
way to go about this, but this is currently necessary to fix a segfault
introduced by using vgmem in the reporter in Dave's lvseg lvm2app patches.

Signed-off-by: Petr Rockai <prockai@redhat.com>
2010-11-17 22:26:42 +00:00
Alasdair Kergon
08f1ddea6c Use __attribute__ consistently throughout. 2010-07-09 15:34:40 +00:00
Milan Broz
4df5235d15 Fix exit code when requesting help using documented -o help option.
IOW fix lvs -o help
...
  Command failed with status code 5.
2010-06-17 13:15:51 +00:00
Mike Snitzer
d6d08486c8 Remove redundant check in _lvs_single now that the caller
(process_each_lv_in_vg) provides it.

Also, removing this check from _lvs_single now allows displaying hidden
LVs that are specifically named on the command line.
2010-04-23 19:10:20 +00:00
Alasdair Kergon
cccae7e633 Look up missing PVs by uuid not dev_name in _pvs_single to avoid invalid stat.
Make find_pv_in_vg_by_uuid() return same type as related functions.
2010-03-16 15:30:48 +00:00
Milan Broz
fed0e904f2 Add missing vg_release to pvs and pvdisplay to fix memory leak. 2009-11-24 17:07:09 +00:00
Alasdair Kergon
a8fb89adaf Tidy some uses of arg_count and introduce arg_is_set. 2009-11-03 15:50:42 +00:00
Dave Wysochanski
266214db84 Fix process_each_vg / _process_one_vg when vg_read() returns FAILED_LOCKING.
Remove the checks for vg_read_error() in most of the tools callback
functions and instead make the check in _process_one_vg() more general.

In all but vgcfgbackup, we do not want to proceed if we get any error
from vg_read().  In vgcfgbackup's case, we may proceed if the backup
is to proceed with inconsistent VGs.  This is a special case though,
and we mark it with the READ_ALLOW_INCONSISTENT flag passed to
process_each_vg (and subsequently to _process_one_vg).

NOTE: More cleanup is needed in the vg_read_error() path cases.
This patch is a start.
2009-09-15 01:38:59 +00:00
Alasdair Kergon
651ff9b328 Add lots of missing stack debug messages to tools.
Make readonly locking available as locking type 4.
Fix readonly locking to permit writeable global locks (for vgscan). (2.02.49)
2009-09-14 22:47:49 +00:00
Petr Rockai
21a98eda88 Port process_each_pv to new vg_read. 2009-07-15 05:50:22 +00:00
Dave Wysochanski
13e8c7e434 Rework the toollib interface (process_each_*) on top of new vg_read.
Sun May  3 12:32:30 CEST 2009  Petr Rockai <me@mornfall.net>
  * Rework the toollib interface (process_each_*) on top of new vg_read.

Rebased 6/26/09 by Dave W.
- Add skipping message to process_each_lv
- Remove inconsistent_t.
2009-07-01 17:00:50 +00:00
Dave Wysochanski
b8b3508c59 Convert the straight instances of vg_lock_and_read to new vg_read(_for_update).
Sun May  3 11:40:51 CEST 2009  Petr Rockai <me@mornfall.net>
  * Convert the straight instances of vg_lock_and_read to new vg_read(_for_update).

Rebased 6/26/09 by Dave W.
2009-07-01 16:59:37 +00:00
Alasdair Kergon
f7c76e3878 revert last patch - let's do a release first 2009-06-26 10:55:57 +00:00
Dave Wysochanski
96d0004d12 Convert the straight instances of vg_lock_and_read to new vg_read(_for_update).
Sun May  3 11:40:51 CEST 2009  Petr Rockai <me@mornfall.net>
  * Convert the straight instances of vg_lock_and_read to new vg_read(_for_update).


Author: Petr Rockai <prockai@redhat.com>
Committer: Dave Wysochanski <dwysocha@redhat.com>
2009-06-26 09:47:36 +00:00
Milan Broz
66086ce962 Fix double releasing of vg when repairing of vg is requested.
Several commands calls process_each_vg() and in provided
callback it explicitly recovers VG if inconsistent.
(vgchange, vgconvert, vgscan)

It means that old VG is released and reread  but the function
above (process_one_vg) tries to unlock and release old VG.

Patch moves the repair logic into _process_one_vg() function.

It always tries to read vg (even inconsistent) and then decides
what to do according new defined parameter.

Also patch unifies inconsistent error messages.

The only slight change if for vgremove command, where
it now tries to repair VG before it removes if force arg is given.
(It works similar way before, just the order of operation changed).
2009-06-05 20:00:52 +00:00
Milan Broz
afd9ba98c1 Merge lv_is_displayable and lv_is_visible.
Displayable and visible is the same thing.

volumes_count(vg) is now vg_visible_lvs() and always
returns number of LVs from user perspective.
2009-05-13 21:27:43 +00:00