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Commit Graph

12443 Commits

Author SHA1 Message Date
Heinz Mauelshagen
18cf5e8e67 raid_manip: allow for raid leg to be replaced when not both data and metadata image are on pvs
resolves rhbz#1130329
2016-03-07 15:25:30 +01:00
Peter Rajnoha
d03b1779b4 coverity: fix possible resource leak in _print_historical_lv function
The code in _print_historical_lv function works with temporary
"descendants_buffer" that is allocated and freed within this
function.

When printing text out, we used "outf" macro which called
"out_text" fn and it checked return value and if failed,
the macro called "return_0" automatically. But since we
use the temporary buffer, if any of the out_text calls
fails, we need to deallocate this buffer properly - that's
the "goto_out", otherwise we'll be leaking memory.

So add new "outfgo" helper macro which does the same as "outf",
but it calls "goto_out" instead of "return_0" so we can jump
to a cleanup hook at the end.
2016-03-07 10:43:50 +01:00
Alasdair G Kergon
7b15ca5c9a post-release 2016-03-04 18:06:24 +00:00
Alasdair G Kergon
68ec240b99 pre-release 2016-03-04 17:59:21 +00:00
Tony Asleson
6c78175126 lvmdbusd: Set locale
Signed-off-by: Tony Asleson <tasleson@redhat.com>
2016-03-04 10:13:04 -06:00
Marian Csontos
f94fe2c91f dbustest.sh: Get dbus test to work on buildbot
- stdout/stderr for test output
- debug.log* for daemon output
- use install instead of cp for DBus config
- use system bus
- DBus reloads on new file. Better having it created with correct
  permissions.

Notes:
- Squashed commits from mcsontos development branch
- Still disabled at this time

Signed-off-by: Tony Asleson <tasleson@redhat.com>
2016-03-04 10:11:03 -06:00
Peter Rajnoha
9720898c8e libdm: config: fix dm_config_write_node and variants to properly return error on failures
The error was not propagated if _write_config (that is part of
dm_config_write_node and all its variants) was called recursively
for subsections.
2016-03-04 15:51:13 +01:00
Peter Rajnoha
67c5006e12 cleanup: previous patch with libdm config node buffer size 2016-03-04 15:19:09 +01:00
Peter Rajnoha
967a0889a0 libdm: config: remove 4096 char limit due to buffer size if writing dm_config_node 2016-03-04 14:59:22 +01:00
Peter Rajnoha
418b7c6be8 WHATS_NEW: historical LVs 2016-03-04 12:08:02 +01:00
Peter Rajnoha
e447ab87e9 man: lvrename: also mention possibility to rename historical logical volumes 2016-03-04 11:51:57 +01:00
Peter Rajnoha
fa06c2263b cleanup: comment in the code for renaming historical LVs 2016-03-04 11:46:29 +01:00
Peter Rajnoha
27245d97e5 lvrename: support renaming historical logical volumes 2016-03-04 11:36:24 +01:00
Peter Rajnoha
b114b4d723 commands: lvdisplay: recognize -H|--history switch 2016-03-04 10:27:45 +01:00
David Teigland
ad9cbe2714 tests: direct control of lvm1 usage in tests
Using lvm1 metadata with lvmetad is not generally allowed,
but nothing has prevented creating new lvm1 metadata with
lvmetad (missing error checking in pvcreate/vgcreate.)
Various tests are using lvm1 with lvmetad and happen to
work because of the missing error checks.

This commit fixes the tests so they won't fail when the
lvm1/lvmetad error checking is fixed.  A new variable
LVM_TEST_LVM1 is defined and is used in the scripts to
decide if lvm1 metadata should be tested.  LVM_TEST_LVM1
is not defined when lvmetad is being tested, and the
combination of LVM_TEST_LVM1 and LVM_TEST_LVMETAD can
be used to verify the desired lvmetad+lvm1 behavior.
2016-03-03 14:43:19 -06:00
Alasdair G Kergon
5764c484ea man: Add some information about historical LVs. 2016-03-03 17:09:25 +00:00
Peter Rajnoha
9a78c258ba tests: add lv-ancestry.sh test 2016-03-03 13:50:59 +01:00
Peter Rajnoha
45c82260db tests: add "get lvh_field" for "lvs -H" 2016-03-03 13:50:59 +01:00
Peter Rajnoha
b39473a537 lvmdump: also list historical LVs in lvmdump 2016-03-03 13:50:59 +01:00
Peter Rajnoha
8a601454e1 metadata: automatically remove invalid (dangling) historical LVs
Historical LV is valid as long as there is at least one live LV among
its ancestors. If we find any invalid (dangling) historical LVs, remove
them automatically.
2016-03-03 13:50:59 +01:00
Peter Rajnoha
1297b0c8be metadata: also validate historical LVs in VG in vg_validate and check_lv_segments 2016-03-03 13:50:59 +01:00
Peter Rajnoha
fc628e92ba metadata: also look at historical LVs when checking LV name availability
Live LVs and historical LVs are in one namespace and the name needs to
be unique in whole VG.
2016-03-03 13:50:59 +01:00
Peter Rajnoha
0ab1110164 conf: regenerate example.conf.in 2016-03-03 13:50:59 +01:00
Peter Rajnoha
ff6e124a33 conf: add metadata/lvs_history_timeout configuration setting 2016-03-03 13:50:59 +01:00
Peter Rajnoha
74272e163d metadata: add vg_strip_outdated_historical_lvs fn and call it during VG read
The vg_strip_outdated_historical_lvs iterates over the list of historical LVs
we have and it shoots down the ones which are outdated.

Configuration hook to set the timeout will be in subsequent patch.
2016-03-03 13:50:59 +01:00
Peter Rajnoha
53b064b9ae commands: lvremove: also process historical LVs 2016-03-03 13:50:59 +01:00
Peter Rajnoha
f833a6d074 metadata: add historical_glv_remove 2016-03-03 13:50:57 +01:00
Peter Rajnoha
ccebf3100d conf: add metadata/record_lvs_history configuration setting
The metadata/record_lvs_history is global switch which enables or
disables recording historical LVs in metadata.

If both metadata/record_lvs_history=1 lvm.conf option and
--nohistory command switch is used at the same time, the
--nohistory prevails.
2016-03-03 13:49:15 +01:00
Peter Rajnoha
b1399090cd commands: lvremove: recognize --nohistory option 2016-03-03 13:49:15 +01:00
Peter Rajnoha
f545dd5952 metadata: honour 'nohistory' switch when removing thin LVs
When --nohistory switch is used with lvremove, the LV that is removed is
not recorded in metadata as 'historical LV'.
2016-03-03 13:49:15 +01:00
Peter Rajnoha
9a34de9cb9 cmd: add 'nohistory' option and wire it up in cmd_context
The --nohistory switch will cause historical LVs to not be recorded
in metadata on demand.
2016-03-03 13:49:15 +01:00
Peter Rajnoha
8f47119f6f report: add new 'none' lv_layout and 'history' lv_role and mark historical LVs that way
Report proper values for historical LVs in lv_layout and lv_role fields.
Any historical LV doesn't have any layout anymore and the role is "history".

For example:

$ lvs -H -o name,lv_attr,lv_layout,lv_role vg/-lvol1
  LV     Attr       Layout     Role
  -lvol1 ----h----- none       public,history
2016-03-03 13:49:15 +01:00
Peter Rajnoha
0339a5f447 report: add full_descendants field to display descendants with history
Same as lv_full_ancestors, but the other way round in the ancestry chain.
2016-03-03 13:49:15 +01:00
Peter Rajnoha
715f1fb4c4 report: add full_ancestors field to display ancestors with history
The lv_full_ancestors reporting field is just like the existing
lv_ancestors field but it also takes into account any history and
indirect relations recorded.
2016-03-03 13:49:15 +01:00
Peter Rajnoha
f228750386 report: report historical LV names with '-' prefix
All names for historical LVs are prefixed with '-' character to make clear
difference between live and historical LVs. The '-' can't be set by users
for live LV names during lvcreate hence we never get into a conflict with
the names that user defines for live LVs.
2016-03-03 13:49:15 +01:00
Peter Rajnoha
8b9953e8c5 report: display (h)istorical state in lv_attr field
The 'historical' state is displayed as 5th bit ("state") in the lv_attr
field and denoted by new 'h' character.
2016-03-03 13:49:15 +01:00
Peter Rajnoha
2af5971523 report: add lv_historical field to identify historical LVs
The lv_historical reporting field is a simple binary field that reports
whether an LV is historical one ("historical" value or value of "1" displayed)
or not (blank string "" or value of "0" displayed).
2016-03-03 13:49:15 +01:00
Peter Rajnoha
e112f5ce05 commands: lvs: recognize -H|--history switch
When lvs command is used together with the -H|--history switch,
all historical LVs are reported as well.
2016-03-03 13:49:14 +01:00
Peter Rajnoha
28f96d5ab6 report: display lv_name,lv_uuid,vg_name,lv_time and new lv_time_removed for historical LVs 2016-03-03 13:49:14 +01:00
Peter Rajnoha
2e7a121062 toollib: honour '-H|--history' switch while executing process_each_lv_in_vg
When processing LVs in a VG and when the -H|--history switch is used,
make process_each_lv_in_vg to iterate over historical volumes too.

For each historical LV, we use dummy struct logical_volume instance with
the "this_glv" reference set to a wrapper over proper struct
historical_logical_volume representation. This makes it possible to process
historical LVs just like normal live LVs (though a dummy one without any
segments and all the other fields zeroed and blank) and it also allows
for using all historical LV related information via lv->this_glv->historical
reference.

One can use a simple call to lv_is_historical to make a difference between
live and historical LV in all the code that is called by process_each_* fns.
2016-03-03 13:49:14 +01:00
Peter Rajnoha
f7e0a4cc18 cmd: add '-H|--history' switch and wire it up in cmd_context and processing_handle
This patch adds "include_historical_lvs" field to struct cmd_context to
make it possible for the command to switch between original funcionality
where no historical LVs are processed and functionality where historical
LVs are taken into account (and reported or processed further). The switch
between these modes is done using the '-H|--history' switch on command
line.

The include_historical_lvs state is then passed to process_each_* fns
using the "include_historical_lvs" field within struct processing_handle.
2016-03-03 13:49:14 +01:00
Peter Rajnoha
baee45a103 metadata: add lv_is_historical fn to test if the LV is historical one 2016-03-03 13:49:14 +01:00
Peter Rajnoha
673bc0636c metadata: format_text: interconnect historical LVs among each other and also with live LVs
Interconnect historical LVs in an ancestry chain and also connect the first/last
one with its live ancestor/descendant if it exists.
2016-03-03 13:49:13 +01:00
Peter Rajnoha
a61bc70f62 metadata: add support for interconnection of thin pool LV segment with indirect origin
Add support for making an interconnection between thin LV segment and
its indirect origin (which may be historical or live LV) - add a new
"indirect_origin" argument to attach_pool_lv function.
2016-03-03 13:46:40 +01:00
Peter Rajnoha
c45af2df4e metadata: add find_historical_glv fn
The find_historical_glv is helper function that looks up historical
LV in struct volume_group's historical_lvs list and returns it if
found.
2016-03-03 13:46:39 +01:00
Peter Rajnoha
a0842d1f25 metadata: format_text: import historical LVs
Import historical LV list from metadata and add it to struct
volume_group's historical_lvs list.
2016-03-03 13:46:39 +01:00
Peter Rajnoha
54d3d976c7 metadata: format_text: reuse _print_timestamp fn 2016-03-03 13:46:39 +01:00
Peter Rajnoha
3a0ef77305 metadata: format_text: also export historical LVs
Also export historical LVs when exporting LVM2 metadata.
This is list of all historical LVs listed in
"historical_logical_volumes" metadata section with all
the properties exported for each historical LV.

For example, we have this thin snapshot sequence:

  lvol1 --> lvol2 --> lvol3
                 \
                  --> lvol4

We end up with these metadata:

logical_volume {
  ...
  (lvol1, lvol3 and lvol4 listed here as usual - no change here)
  ...
}

historical_logical_volumes {
  lvol2 {
    id = "S0Dw1U-v5sF-LwAb-W9SI-pNOF-Madd-5dxSv5"
    creation_time = 1456919613      # 2016-03-02 12:53:33 +0100
    removal_time = 1456919620       # 2016-03-02 12:53:40 +0100
    origin = "lvol1"
    descendants = ["lvol3", "lvol4"]
  }
}

By removing lvol1 further, we end up with:

historical_logical_volumes {
  lvol2 {
    id = "S0Dw1U-v5sF-LwAb-W9SI-pNOF-Madd-5dxSv5"
    creation_time = 1456919613      # 2016-03-02 12:53:33 +0100
    removal_time = 1456919620       # 2016-03-02 12:53:40 +0100
    origin = "-lvol1"
    descendants = ["lvol3", "lvol4"]
  }

  lvol1 {
    id = "me0mes-aYnK-nRfT-vNlV-UiR1-GP7r-ojbROr"
    creation_time = 1456919608      # 2016-03-02 12:53:28 +0100
    removal_time = 1456919767       # 2016-03-02 12:56:07 +0100
  }
}
2016-03-03 13:46:18 +01:00
Peter Rajnoha
790b2e8748 metadata: create historical LVs when LVs are removed and interconnect with live LVs
When an LV is being removed, we create an instance of
"struct historical_logical_volume" wrapped up in
"struct generic_logical_volume".

All instances of "struct historical_logical_volume" are then recorded in
"historical_lvs" list which is part of "struct volume_group".

The "historical LV" is then interconnected with "live LVs" to
connect a history chain for the live LV.
2016-03-03 11:26:51 +01:00
Peter Rajnoha
eeaa5a4481 metadata: add add_glv_to_indirect_glvs and remove_glv_from_indirect_glvs
The add_glv_to_indirect_glvs is a helper function that registers a
volume represented by struct generic_logical_volume instance ("glv")
as an indirect user of another volume ("origin_glv") and vice versa -
it also registers the other volume ("origin_glv") as indirect_origin
of user volume ("glv").

The remove_glv_from_indirect_glvs does the opposite.
2016-03-03 11:26:51 +01:00