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Commit Graph

11965 Commits

Author SHA1 Message Date
Zdenek Kabelac
112c0592ad debug: put stack on error path
At least check result and trace it.
However we may need better error reaction in this case.
2015-11-13 11:17:06 +01:00
Zdenek Kabelac
007be91e3d raid: ensure area_count is at least 2
Enusure we will not divide by 0.
2015-11-13 11:17:06 +01:00
Zdenek Kabelac
d74e1291cd libdm: put in secure check
Coverity complains about NULL deref - while this cannot currently
happen, put in secure INTERNAL_ERROR.
2015-11-13 11:17:05 +01:00
Zdenek Kabelac
0128770d6d reporter: add missing stack trace
Use goto_out on error paths.
2015-11-13 11:17:05 +01:00
David Teigland
43777b551d lvmetad: tail chasing to shut up coverity 2015-11-12 09:35:41 -06:00
Zdenek Kabelac
058725c721 dmeventd: fix check for failing open.
Recent change 2c8d6f5c90
actually droped restart when the reason of failing open is missing
device completely - check for ENOENT now as another reason
to start new dmeventd server  (when there is no systemd to maintain it).
2015-11-11 19:54:55 +01:00
Peter Rajnoha
1e729c47d2 str_list: do not support str lists without mempools
Do not support str lists without mempools. Instead, create temporary
mempool where necessary (currently only _get_report_options fn).
2015-11-11 16:09:52 +01:00
Peter Rajnoha
b8779e706e configure: check for udev_device_get_is_initialized is available
The udev_device_get_is_initialized is available since libudev version
165. Older versions are still used somewhere (e.g. RHEL6). So better
check for this fn and use it only if it's available.
2015-11-11 15:15:50 +01:00
Peter Rajnoha
f82e0210b7 dev-ext: issue error if external_device_info_source=udev and udev db record incomplete
Udev db records are marked as not initialized (incomplete) on timeout.
Issue an error message whenever LVM finds such records so users are
aware that something's going wrong with udev db.

This is important in case we use devices/external_device_info_source="udev"
where udev database records are used to do various filtering decisions.

For example:

udev log of timed out worker:

Nov 11 13:02:25 raw.virt systemd-udevd[607]: seq 1997 '/devices/virtual/block/dm-2' is taking a long time
Nov 11 13:04:25 raw.virt systemd-udevd[607]: seq 1997 '/devices/virtual/block/dm-2' killed
Nov 11 13:04:25 raw.virt systemd-udevd[607]: worker [11221] terminated by signal 9 (Killed)
Nov 11 13:04:25 raw.virt systemd-udevd[607]: worker [11221] failed while handling '/devices/virtual/block/dm-2'
...

LVM also issues error message visibly if incomplete udev db record is found,
devices/external_device_info_source="udev" is set:

$ pvs
  Udev database has incomplete information about device /dev/dm-2.
  Failed to get external handle for device /dev/dm-2 [udev].
  ...
2015-11-11 13:14:07 +01:00
Zdenek Kabelac
6d0db97163 libdm: reorder error path
Coverity noticed recent fix of an error path missed to
release 'dmt' - reoder code to ensure 'dmt' is released.
2015-11-10 21:41:47 +01:00
Zdenek Kabelac
a45cc0fe14 raid: fix the string compare
Coverity noticed this condition is always false and the error
path could never be visited.

So check for all mismatches of supported messages
and actually mark log_error as internal error.
2015-11-10 21:40:28 +01:00
Alasdair G Kergon
59905100d1 coverity: Add placeholder modelling file. 2015-11-10 01:37:11 +00:00
Zdenek Kabelac
fb59847a0f libdm: replace assign with increment
Coverity didn't liked assign with && expression, so use trick.
It does not complain against this prefix incremenent operation.
2015-11-09 22:51:48 +01:00
David Teigland
7ec61cd5b9 vgrename: check if new and old names match
When the first arg is a UUID and vgrename translates
that UUID to a current VG name, the old and new VG
names are not being checked for equality.  If they
are equal, it produces an internal error rather than
a proper error.
2015-11-09 13:23:59 -06:00
David Teigland
cd937efa77 lvmetad: change recent cleanups
with better alternatives.
2015-11-09 12:18:43 -06:00
David Teigland
d2d5191b78 lvmlockd: reverse some unnecessary checking
These are unnecessary or not useful.
2015-11-09 12:18:43 -06:00
Zdenek Kabelac
a0cb92cbb1 tests: handle missing delay_dev
Try to run as much of test which could run without delay_dev.
2015-11-09 19:07:53 +01:00
David Teigland
6762eec88c lvmlockd: fix the NO_GL_LS condition
indicating when no global lockspace exists.
2015-11-09 11:33:16 -06:00
Zdenek Kabelac
45e749493c cleanup: ensuring string is not NULL
Coverity cannot see the string cannot be NULL so make it explicit.
2015-11-09 17:04:10 +01:00
Zdenek Kabelac
76b42901c0 cache: ensure there is no NULL str
Coverity is not smart enough to detect this case could never happen.
2015-11-09 17:04:10 +01:00
Zdenek Kabelac
b1215b7f8c lvmlockd: enforce 64bit arithmetic
Coverity suggest to stay on the 'safe' side and widen operators early
so 64bit offset is made from 64bit arithmentic.
2015-11-09 17:04:10 +01:00
Zdenek Kabelac
d6767d753f lvmlockd: add missing error checks
Detect error from function and report them.
2015-11-09 17:04:10 +01:00
Zdenek Kabelac
c2d5cfbdb8 cleanup: use _ for local function 2015-11-09 17:04:10 +01:00
Zdenek Kabelac
3db5ba08b1 cleanup: drop unneded headers
Coverity notices they are not really needed.
2015-11-09 17:04:10 +01:00
Zdenek Kabelac
6c331f3061 dmsetup: one missed dms 2015-11-09 17:04:10 +01:00
Zdenek Kabelac
32762e2a9c libdaemon: fix passing 32bit values for %d
Since %d is now prohibited for its great confusion,
replace it with  FMTd64 and correctly converted int64_t
parameter.
2015-11-09 17:04:10 +01:00
David Teigland
e207ededd6 lvmlockd: shut up warnings 2015-11-09 10:00:04 -06:00
Zdenek Kabelac
36ee367343 libdaemon: prohibit use of %d for 64bit numbres
Do not let pass %d and print internal error when found one.
Require all users to use  FMTd64 - it's seriously confusing.
2015-11-09 14:03:25 +01:00
Zdenek Kabelac
0b5a75c9af lvmetad: restore use of FMTd64
daemon_reply_simple() eats just 64bit numbers - so make it explicit.
2015-11-09 14:02:27 +01:00
Zdenek Kabelac
7103012754 tests: update test to check for race better
Use  delay_dev to slow down mirror sync so we could more
easily check for race and proper reject of parallel mirror
leg addition/reduction.

Also expose fail in mirror allocation of parallel leg.
2015-11-09 12:21:17 +01:00
Zdenek Kabelac
ab4773671b tests: do not skip test when delay is missing
Rather then skipping whole test - just do not use it.

Failing tests that have required delay need to deal with reality
and shell either check for HAVE_DM_DELAY and skip portion
of test or using should when needed.
2015-11-09 12:21:17 +01:00
Zdenek Kabelac
e4c9b390ca cleanup: update comment 2015-11-09 12:21:17 +01:00
Zdenek Kabelac
84a9546869 dmsetup: cleanup warn for older compilers
Older gcc somehow thinks there is a path of using
subcommand uninitilized.

So make it more obvious there is no such one.
2015-11-09 12:21:17 +01:00
Zdenek Kabelac
5aae8de776 lvmetad: maintain seqno as int
Keep seqno as 32bit value.
Also use '_' prefix for local _update_metadata.
2015-11-09 12:21:17 +01:00
Zdenek Kabelac
57c2a1ae8c raid: mark intententional copy and paste
Coverity: add this extra comment, to let Coverity know this
slightly changed copy&paste code is intentional.
2015-11-09 10:22:52 +01:00
Zdenek Kabelac
846adadbcc cleanup: use code in place
Pass const strings to printf(),
and use  struct names directly instead of creating unused vars on stack.
2015-11-09 10:22:52 +01:00
Zdenek Kabelac
22e19cb354 cleanup: reoder rstatus init
In all error paths always initialize *rstatus.
2015-11-09 10:22:52 +01:00
Zdenek Kabelac
b1dab26be0 cleanup: coverity quiet
While through all codepaths we never 'read' lock_id unless LCKF_CONVERT,
coverity cannot decrypt this.

As since it's usually better to pass in 'well-defined' data structures
preset lock_id to 0.
2015-11-09 10:22:52 +01:00
Zdenek Kabelac
11151121aa cleanup: use fputs for plain strings
Use fputs() when printing plain string,
easier then fprintf which needs to parse it.

Also check fd before close is >= 0 -
it is - but coverity fail to see it, so eliminate
this false-positive warning.
2015-11-09 10:22:52 +01:00
Zdenek Kabelac
c4c5635870 cleanup: drop unneeded assign
prio is always assigned later.
2015-11-09 10:22:52 +01:00
Zdenek Kabelac
e262d5e596 cleanup: keep using enum typedef
Using enum instead of unsigned.
2015-11-09 10:22:52 +01:00
Zdenek Kabelac
9b9b5d0ea2 cleanup: use 64bit multiply for print 2015-11-09 10:22:52 +01:00
Zdenek Kabelac
f6d2528f64 cleanup: drop unneeded header file 2015-11-09 10:22:51 +01:00
Zdenek Kabelac
5ba219e87a cleanup: use display_lvname 2015-11-09 10:22:51 +01:00
Zdenek Kabelac
04f76d9020 cleanup: use NAME_LEN
Let's have instant check for max name len when creating
subLV name.
2015-11-09 10:22:51 +01:00
Zdenek Kabelac
5c48ef993b cleanup: use NAME_LEN buffer instead of alloca
Drop alloca and use NAME_LEN size to get implicit check
for max len of LV name.
2015-11-09 10:22:51 +01:00
Zdenek Kabelac
2e04eee192 cleanup: do not test alloca for NULL
alloca() never returns NULL.
In case stack is out-of-range the behaviour is undefined.
2015-11-09 10:22:51 +01:00
Zdenek Kabelac
c542c18d2a cleanup: drop unneded assign
Coverity doesn't really like to see subcommand being assigned NULL,
so drop it.
2015-11-09 10:22:51 +01:00
Zdenek Kabelac
07046e994f alloc: use own mem pool for alloc_handle
Keep alloc_handle's data in a single mempool and do not
spread them into vgmem pool.
2015-11-09 10:22:49 +01:00
Zdenek Kabelac
0c380c316c cleanup: relocate error capture
Capture internal error before allocation anything.
2015-11-09 10:21:09 +01:00