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Commit Graph

177 Commits

Author SHA1 Message Date
Petr Rockai
c7b17836ea Implement devices/global_filter.
The global filter is applied first, and is also applied in pvscan --cache (which
is called from udev rules to keep lvmetad updated). Cf. example.conf.
2012-09-26 14:49:15 +02:00
Petr Rockai
2276379a71 lib/cache/lvmetad: Refactor to use dm_config_tree in requests.
We were using daemon_send_simple until now, but it is no longer adequate, since
we need to manipulate requests in a generic way (adding a validity token to each
request), and the tree-based request interface is much more suitable for this.
2012-09-26 14:49:15 +02:00
Alasdair G Kergon
438e0050df config: add silent mode
Accept -q as the short form of --quiet.
Suppress non-essential standard output if -q is given twice.
Treat log/silent in lvm.conf as equivalent to -qq.
Review all log_print messages and change some to
log_print_unless_silent.

When silent, the following commands still produce output:
dumpconfig, lvdisplay, lvmdiskscan, lvs, pvck, pvdisplay,
pvs, version, vgcfgrestore -l, vgdisplay, vgs.
[Needs checking.]

Non-essential messages are shifted from log level 4 to log level 5
for syslog and lvm2_log_fn purposes.
2012-08-25 20:35:48 +01:00
Zdenek Kabelac
329c46d36e clenaup: compatible definition for older gcc
Fixes previous commit, it seems older gcc compilers do not
recognize same typedef.

(Easiest would be probably to directly include proper header here).
2012-08-23 16:30:22 +02:00
Zdenek Kabelac
fd417db274 check: add internal errors for unexpected paths
Adding couple INTERNAL_ERROR reports for unwanted parameters:

Ensure the 'top' metadata node cannot be NULL for lvmetad.

Make obvious vginfo2 cannot be NULL.

Report internal error if handler and vg is undefined.

Check for handle in poll_vg().

Ensure seg is not NULL in dev_manager_transient().

Report missing read_ahead for _lv_read_ahead_single().

Check for report handler in dm_report_object().

Check missing VG in _vgreduce_single().
2012-08-23 14:37:52 +02:00
Zdenek Kabelac
195fe03075 cleanup: use proper activation_change_t 2012-08-23 14:37:38 +02:00
Zdenek Kabelac
14d2b5a13f cleanup: use return_NULL
Function returns pointer, so use NULL.
2012-08-23 14:37:38 +02:00
Zdenek Kabelac
286cd2006b cleanup: drop unneeded included header files
This headers were not resolving anything used for compiled .c files.
Remove unused util.c file.
2012-08-23 14:37:20 +02:00
Petr Rockai
6997943f22 lvmetad: Implement --test (fixes #832033). 2012-07-30 11:19:02 +02:00
Peter Rajnoha
95ced7a7be activate: add autoactivation hooks
Define an 'activation_handler' that gets called automatically on
PV appearance/disappearance while processing the lvmetad_pv_found
and lvmetad_pv_gone functions that are supposed to update the
lvmetad state based on PV availability state. For now, the actual
support is for PV appearance only, leaving room for PV disappearance
support as well (which is a more complex problem to solve as this
needs to count with possible device stack).

Add a new activation change mode - CHANGE_AAY exposed as
'--activate ay/-aay' argument ('activate automatically').

Factor out the vgchange activation functionality for use in other
tools (like pvscan...).
2012-06-28 09:42:47 -04:00
Zdenek Kabelac
e9f9c6be26 lvmetad: check for fid existance
Fail to update lvmetad with proper log error message.
2012-06-22 13:50:21 +02:00
Zdenek Kabelac
6f3cd63551 cleanup: replace memset with struct initilization
Simplifies the code, properly detects too long socket paths,
drops unused parameter.
2012-06-22 13:23:03 +02:00
Peter Rajnoha
cb08b8eb7e Check if info struct returned is not NULL.
Just some missing checks revealed by Coverity in recent code.
2012-04-10 12:26:27 +00:00
Zdenek Kabelac
8a81716325 Minor fixes
Just small updates and remove <backtrace> after log_error.
2012-03-28 11:11:25 +00:00
Zdenek Kabelac
ea91741212 Just move declaration 2012-03-14 17:15:22 +00:00
Alasdair Kergon
35216ca66c Scan all devices for lvmetad if 'pvscan --cache' used without device list. 2012-03-03 18:32:53 +00:00
Alasdair Kergon
8d2c7d28cc a fixme 2012-03-02 22:44:31 +00:00
Alasdair Kergon
ffe898ca9f fix non-lvmetad pvscan macro 2012-03-02 21:50:02 +00:00
Alasdair Kergon
865738f271 missing reply frees 2012-03-02 21:24:37 +00:00
Alasdair Kergon
9c159ea320 Pass struct device around internally rather than dev_t.
Add 3rd daemon return state "unknown" for lookups that are carried out
successfully but don't find the item requested.
Avoid issuing error messages when it's expected that a device that's
being looked up in lvmetad might not be there.
2012-03-02 20:46:36 +00:00
Alasdair Kergon
d742cdf327 Change pvscan --lvmetad to pvscan --cache. 2012-03-02 18:09:46 +00:00
Alasdair Kergon
d06f64dd29 Allow multiple device names with pvscan --lvmetad.
Hold global lock in pvscan --lvmetad.  (This might need refinement.)
Add PV name to "PV gone" messages.
Adjust some log message severities.  (More changes needed.)
2012-03-02 16:58:41 +00:00
Zdenek Kabelac
099aca0311 Check allocated pointers
Test pointers from allocation against NULL.
Error paths should be checked, some of them probably need
some extesions.
2012-03-01 22:52:59 +00:00
Zdenek Kabelac
ec19a5a62f Check pointer before deref in debug message 2012-03-01 21:58:55 +00:00
Zdenek Kabelac
7038d527a6 Explicitely ignore fail from this label_read 2012-03-01 21:57:43 +00:00
Petr Rockai
bea2f61935 Use 64 bit integers for device size & label sector in _pv_populate_lvmcache in
lvmetad client code. Fixes RHBZ 798267.
2012-03-01 20:04:44 +00:00
Alasdair Kergon
5b613cff97 Pass 'single_device' parameter down to suppress 'Can't find uuid' messages
when reading VG text metadate and called from pvscan --lvmetad.

(Longer-term, that check needs moving outside of that code.)
2012-02-29 02:35:35 +00:00
Alasdair Kergon
5bba2cc74b Invert some return codes (which used to get ignored anyway) in cases when
lvmetad is not being used.
2012-02-28 18:23:56 +00:00
Alasdair Kergon
a73128132c Bypass lvmetad fns when not configured to use lvmetad. 2012-02-28 18:22:52 +00:00
Alasdair Kergon
03b18d96ad If lvmetad fails, don't set _has_scanned 2012-02-28 18:20:17 +00:00
Zdenek Kabelac
dec6a245a9 Check result of export_vg_to_buffer
and avoid usage of failed buffer.
2012-02-28 11:09:06 +00:00
Zdenek Kabelac
d13b5db28e Add stacktrace for init_lvmcache_orphans fail path 2012-02-28 11:08:04 +00:00
Zdenek Kabelac
89bce34cfb Explicitely ignore errors in label_read iteration.
We don't want stack traces here, so mark as void.
2012-02-28 10:10:07 +00:00
Zdenek Kabelac
a68f04f41c Check id_write_format result
Currently we never fail with 64byte uuid buffer,
but just stay consitent with rest of the code and check for result.
2012-02-27 11:32:48 +00:00
Petr Rockai
7e9fbf5518 Fix a possible SEGV in lvmetad client code, and a minor leak in pvscan
--lvmetad.
2012-02-26 13:42:50 +00:00
Petr Rockai
6857e761cf A bit of documentation for lvmetad_vg_lookup. 2012-02-26 08:50:13 +00:00
Petr Rockai
1943ff9910 - Improve error reporting on lvmetad connection failure.
- Fix a couple of memory leaks in the lvmetad client code.
- Avoid an error in lvmetad_pv_gone when we aren't using lvmetad.
2012-02-26 08:49:40 +00:00
Zdenek Kabelac
219e040062 Drop backtrace after log_error
Just a minor change to not give backtrace when log_error has been just
reported.
2012-02-23 22:24:47 +00:00
Zdenek Kabelac
ba337a5f3e Remaing code suffling
Move declaration to the front of function to follow coding rules.
2012-02-23 22:23:12 +00:00
Zdenek Kabelac
9cc66e6f8b Fix regression from cleanup commit
baton is being modified, so needs to be cleared before each use.
2012-02-23 19:03:48 +00:00
Zdenek Kabelac
b6c5ea358e Some reformating for lvmetad uddates
cleanup gcc warning,
use PRIu64
header cleanups
const pointer fixes.
2012-02-23 17:59:32 +00:00
Petr Rockai
dae0822698 The lvmetad client-side integration. Only active when use_lvmetad = 1 is set in
lvm.conf *and* lvmetad is running.
2012-02-23 13:11:07 +00:00
Zdenek Kabelac
382a1a6bea Add internal error to guard vgname2 NULL dereference 2012-02-13 14:26:15 +00:00
Alasdair Kergon
b719e3d323 FMT_INSTANCE_VG is redundant now 2012-02-12 23:01:19 +00:00
Petr Rockai
6e41729eb8 Keep a global (per-format) orphan_vg and keep any and all orphan PVs linked to
it. Avoids the need for FMT_INSTANCE_PV and enables further simplifications. No
functional change, internal refactor only.
2012-02-10 02:53:03 +00:00
Petr Rockai
8e5f7cf3dc Move lvmcache data structures behind an API (making the structures private to
lvmcache.c). No functional change.
2012-02-10 01:28:27 +00:00
Zdenek Kabelac
9278655de1 Some fixmes
'len' calculation is unused ?
Unreachable code could be removed or moved upward ?
2012-02-08 12:57:15 +00:00
Petr Rockai
845b1df617 Make a cleaner split between config tree and config file functionality. Move
the latter out of libdm.
2011-12-18 21:56:03 +00:00
Alasdair Kergon
898fec25e5 When dropping the VG metadata from the cache during a VG revert, we must
reset the 'precomitted' flag, just as we'd clear if we next did a 'commit'.
2011-12-08 23:18:00 +00:00
Zdenek Kabelac
d4f134b8f6 Check for refresh_filter failure
Properly detect if the filters were refreshed properly.

(May needs few more fixes ??)

Filter refresh may fail because it may be out of free file descriptors
when clvmd gets overloaded.
2011-10-11 09:09:00 +00:00