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Commit Graph

128 Commits

Author SHA1 Message Date
Alasdair Kergon
20fdf0231e Add and use dev_open_readonly and variations. 2011-05-24 13:36:57 +00:00
Peter Rajnoha
7c9f1ae834 Do not issue an error message when unable to remove .cache on read-only fs. 2011-05-12 12:42:47 +00:00
Peter Rajnoha
79bed56a52 Obtain device list from udev by default if LVM2 is compiled with udev support.
Also, add a new 'obtain_device_list_from_udev' setting to lvm.conf with which
we can turn this feature on or off if needed.

If set, the cache of block device nodes with all associated symlinks
will be constructed out of the existing udev database content.
This avoids using and opening any inapplicable non-block devices or
subdirectories found in the device directory. This setting is applied
to udev-managed device directory only, other directories will be scanned
fully. LVM2 needs to be compiled with udev support for this setting to
take effect. N.B. Any device node or symlink not managed by udev in
udev directory will be ignored with this setting on.
2011-04-22 12:05:32 +00:00
Zdenek Kabelac
e50d9e2c57 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
Zdenek Kabelac
02c2036731 Replace PV_MIN_SIZE with function pv_min_size()
Add configurable option to define minimal size of
of block device usable as a PV.

pv_min_size() is added to lvm-globals and it's being
initialized through _process_config.

Macro PV_MIN_SIZE is unused and removed.

New define DEFAULT_PV_MIN_SIZE_KB is added to lvm-global
and unlike PV_MIN_SIZE it uses KB units.

Should help users with various slow devices attached to the system,
which cannot be easily filtered out (like FDD on /dev/sdX):
https://bugzilla.redhat.com/show_bug.cgi?id=644578
2011-02-18 14:11:22 +00:00
Alasdair Kergon
27e49620ec Use O_DIRECT when reading block devices. 2011-01-27 00:21:37 +00:00
Alasdair Kergon
f1e5f9d8d5 add fio 2011-01-12 15:28:33 +00:00
Zdenek Kabelac
cae4882865 Fix memory leak in filter creation error path
If some allocation for peristent filter fails its memory reference
was lost, fix it by calling filter's destructor.

Fix log_error messages for failing allocation.
2011-01-06 15:29:24 +00:00
Zdenek Kabelac
9c146b8a6f Fix error path if regex engine cannot be created in _build_matcher().
Fix only 'stack' printing with full function error exit.
2010-12-20 13:45:39 +00:00
Zdenek Kabelac
1ea4c6d449 Add more strict const pointers around config tree
To have better control were the config tree could be modified use more
const pointers and very carefully downcast them back to non-const
(for config tree merge).
2010-12-20 13:12:55 +00:00
Alasdair Kergon
a65df0e598 Add dm_zalloc and use it and dm_pool_zalloc throughout. 2010-09-30 21:06:50 +00:00
Alasdair Kergon
1588334093 Fix name in msg in last checkin.
(The problem the last checkin addressed was a segfault in 'pvs -a' if .cache
didn't contain every PV in a VG.)
2010-09-22 01:50:38 +00:00
Alasdair Kergon
6f4fb574ec Track recursive filter iteration to avoid refreshing while in use. (2.02.56) 2010-09-22 01:36:13 +00:00
Peter Rajnoha
f0e82e4473 Recognise and give preference to md device partitions (blkext major).
We can already detect MD devices internally. But when using MD partitions,
these have "block extended major" (blkext) assigned (259). Blkext major
is also used in general, so we need to check whether the original device
is an MD device actually.
2010-08-11 12:14:23 +00:00
Petr Rockai
dd5d9aa6bc Never scan internal LVM devices. 2010-08-09 14:05:16 +00:00
Alasdair Kergon
2d3164a59f Use __attribute__ consistently throughout. 2010-07-09 15:34:40 +00:00
Alasdair Kergon
bbe29582cb Always pass unsuspended dm devices through persistent filter to other filters.
Move test for suspended dm devices ahead of other filters.
2010-07-02 02:09:57 +00:00
Alasdair Kergon
b00dc7153a Don't merge unchanged persistent cache file before dumping if tool scanned. 2010-06-01 19:02:12 +00:00
Alasdair Kergon
3eb97ffa25 pre-release 2010-05-17 18:39:01 +00:00
Milan Broz
2b129732b0 Skip also special lvm devices in scan (if ignore suspended is used).
This should avoid various races between dmeventd on multiple nodes
in cluster where one node already repairing device and another
run full scan and locks the device.
2010-05-13 18:38:38 +00:00
Milan Broz
5ee39f1a1d Currently if clvmd is running and user issues vgscan,
the device cache file is dumped both in vgscan and clvmd process.

Unfortunately, clvmd calls lvmcache_label_scan,
it properly destroys persistent filter, but during
persistent_filter_dump it merges old cache content back!

This causes that change in filters is not properly propagated
into device cache after vgscan on cluster.
(Only new devices are added.)

https://bugzilla.redhat.com/show_bug.cgi?id=591861
2010-05-13 13:04:03 +00:00
Zdenek Kabelac
6ef6b6af40 Show string with invalid pattern
and start error message with capital letter.
2010-04-30 12:31:32 +00:00
Milan Broz
099b03f038 Use fixed buffer to prevent stack overflow in persistent filter dump. 2010-01-06 13:25:36 +00:00
zkabelac
b1f8076da0 Cleanup returns for void functions. 2009-12-11 13:16:37 +00:00
Milan Broz
a1dbd7156c Recognise DRBD device part and handle it similar to MD devices.
The DRBD uses underlying device so code should prefer top
device if duplicate is found.

Patch also introduce
        dev_subsystem_part_major and dev_subsytem_name
functions to easily handle all these replication susbystems
and not hardcode md_major call.

See https://bugzilla.redhat.com/show_bug.cgi?id=530881
for full problem description.
2009-10-27 17:00:44 +00:00
snitzer
a6a2be6e37 Fix pvcreate on a partition (regressed in 2.02.51).
Eliminate busy loop during pvcreate of a "normal" partition.
_md_sysfs_attribute_snprintf() would busy loop if the device it was
given was not a blkext-based MD partition.

Rather than being cute with a busy-loop prone 'goto check_md_major' in
_md_sysfs_attribute_snprintf(): explicitly check if the provided device
is a blkext-based partition (blkext_major()); and then check that the
get_primary_dev() determined parent is an MD device (md_major()).
2009-08-19 15:34:33 +00:00
snitzer
f49c31ddb2 Add extended device (blkext) and MD partition (mdp) types to filters.
Both types were added with a 'max_partitions' of 1 because these devices
are _not_ partitionable (they are the partitions).
2009-07-09 22:34:02 +00:00
Dave Wysochanski
4550133c81 Fix segfault in persistent_filter_dump() if lvm init fails.
Just return_0 in persistent_filter_dump() if passed a NULL filter;
2009-07-08 18:13:32 +00:00
Milan Broz
6772b45ea6 Add MMC device type to filters. 2009-04-16 10:16:14 +00:00
Alasdair Kergon
a2bfad1c29 Right, a simple build (without options) is working again. 2008-11-03 22:14:30 +00:00
Alasdair Kergon
a03d0e2c3f Store sysfs location in struct cmd_context. 2008-09-19 03:42:37 +00:00
Alasdair Kergon
1ecd05a584 fix vd->virtblk 2008-04-03 10:29:00 +00:00
Alasdair Kergon
a109ce1eca Escape double quotes and backslashes in external metadata and config data.
Add functions for escaping double quotes in strings.
Rename count_chars_len to count_chars.
2008-03-12 16:03:22 +00:00
Alasdair Kergon
bd606943e6 add vd to filters 2008-03-05 18:15:04 +00:00
Alasdair Kergon
2b83c80593 Fix mirror log name construction during lvconvert. (2.02.30)
Make monitor_dev_for_events recurse through the stack of LVs.
Clean up some more compiler warnings.
Add mirror names test script.
2008-01-31 12:19:36 +00:00
Alasdair Kergon
1ddd4509dc Some whitespace tidy-ups. 2008-01-30 14:00:02 +00:00
Alasdair Kergon
6af3f4f4cf Use stack return macros throughout. 2008-01-30 13:19:47 +00:00
Alasdair Kergon
90990aa19d Handle new sysfs subsystem/block/devices directory structure. 2007-10-10 11:31:21 +00:00
Alasdair Kergon
d080291150 Clean up numerous compiler warnings that crept in recently.
Remove several unused parameters from _allocate().
2007-08-22 14:38:18 +00:00
Alasdair Kergon
3f507a26fb Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1. 2007-08-20 20:55:30 +00:00
Alasdair Kergon
d5a46396b0 Add ps3disk devices. 2007-07-26 13:28:32 +00:00
Jim Meyering
5e84cb560d Detect stream write failure reliably; new fn: lvm_fclose; use dm_fclose
* lib/misc/lvm-file.c (lvm_fclose): New function.
* lib/misc/lvm-file.h (lvm_fclose): Declare it.
* lib/config/config.c (write_config_file): Use the new function to detect
and diagnose unlikely write failure.
* lib/filters/filter-persistent.c (persistent_filter_dump): Likewise.
* lib/format_text/archive.c (archive_vg): Likewise.
* lib/format_text/format-text.c (_vg_write_file): Likewise.
* lib/log/log.c (fin_log): Similar, but use dm_fclose directly.
Include "\n" at end of each fprintf format string.
2007-07-24 17:48:08 +00:00
Jim Meyering
fa28cea152 Introduce is_same_inode macro, now including a comparison of st_dev.
* lib/misc/lvm-file.h (is_same_inode): Define.
* lib/filters/filter-persistent.c (persistent_filter_dump): Use is_same_inode
in place of a direct st_ino-only comparison.
* lib/locking/file_locking.c (_release_lock, _lock_file): Likewise.
2007-07-20 15:22:46 +00:00
Patrick Caulfield
505a0a8718 Add SUN's LDOM virtual block device to filters
Thanks to Fabio Massimo Di Nitto
2007-07-19 07:06:47 +00:00
Alasdair Kergon
d04e972d65 Move regex functions into libdevmapper. 2007-04-27 18:52:05 +00:00
Alasdair Kergon
dcdbbb3ecb Add devices/preferred_names config regex list for displayed device names.
Free a temporary dir string in fcntl_lock_file() after use.
Fix a dm_pool_destroy() in matcher_create().
Introduce goto_bad macro.
2007-04-26 16:44:59 +00:00
Alasdair Kergon
f9ee4395b0 also ignore mirrors 2007-01-25 23:03:48 +00:00
Alasdair Kergon
71f06d51ed Add devices/ignore_suspended_devices to ignore suspended dm devices. 2007-01-25 21:22:30 +00:00
Alasdair Kergon
f813d41a76 Add some missing close() and fclose() return code checks.
Fix exit statuses of reporting tools (2.02.19).
2007-01-25 14:37:48 +00:00
Alasdair Kergon
6531e88761 Protect .cache manipulations with fcntl locking.
Change .cache timestamp comparisons to use ctime.
2006-11-04 03:34:10 +00:00