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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.
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
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.
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).
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.
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.
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
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.
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()).
* 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.
* 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.
Fix some memory leaks in error paths found by coverity.
Use C99 struct initialisers.
Move DEFS into configure.h.
Clean-ups to remove miscellaneous compiler warnings.
Additional verbosity level -vvvv includes line numbers and backtraces.
Verbose messages now go to stderr not stdout.
Close any stray file descriptors before starting.
Refine partitionable checks for certain device types.
Allow devices/types to override built-ins.
Clear many compiler warnings (i386) & associated bugs - hopefully without
introducing too many new bugs:-) (Same exercise required for other archs.)
Default compilation has optimisation - or else use ./configure --enable-debug
Lots of changes/very little testing so far => there'll be bugs!
Use 'vgcreate -M text' to create a volume group with its metadata stored
in text files. Text format metadata changes should be reasonably atomic,
with a (basic) automatic recovery mechanism if the system crashes while a
change is in progress.
Add a metadata section to lvm.conf to specify multiple directories if
you want (recommended) to keep multiple copies of the metadata (eg on
different filesystems).
e.g. metadata {
dirs = ["/etc/lvm/metadata1","/usr/local/lvm/metadata2"]
}
Plenty of refinements still in the pipeline.
onto a new device). uuid specified must not already exist on the system.
o More message tidying.
o When checking for label, only read PV metadata.
o Add ataraid. [Needs moving into config/defaults files.]
filters in order.
eg,
f = composite_filter_create(2, regex_filter, persistent_filter);
ownership of the filters passes, they will be destroyed when f's
destroy method is called.
devices {
# first match is final, eg. /dev/ide/cdrom
# get's rejected due to the first pattern
filter=["r/cdrom/", # don't touch the music !
"a/hd[a-d][0-9]+/",
"a/ide/",
"a/sd/",
"a/md/",
"a|loop/[0-9]+|", # accept devfs style loop back
"r/loop/", # and reject old style
"a/dasd/",
"a/dac960/",
"a/nbd/",
"a/ida/",
"a/cciss/",
"a/ubd/",
"r/.*/"] # reject all others
}
Alasdair this is ready to roll into the tools now.