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lvm2app forces applications to start with a volume group name,
open the volume group, then operate on individual pvs. In some
cases the application may want to start with a device name rather
than the volume group name. Today, if an application wants to
do this, it must iterate through all the volume groups to find
the volume group that the specific device is attached to.
These new interfaces allow the application to avoid such overhead.
Bump the lvm2app version number to 3.
Use Requires.private: instead of Libs.private:
Use UDEV_PC and SELINUX_PC for Require.private:
It looks like usage of Requires.private is prefered from Libs.private.
However pkg-config documentation is really poor here. But here is
short outcome:
There is a difference in Libs.private: and Requires.private: where
we specify libselinux instead of -lselinux -lsepol.
We leave resolving of query like 'pkg-config --libs --static devmapper'
on taking proper selinux and udev libs to their .pc files instead of
hardcoding them into our .pc file which is might give incorrect answer.
- i.e. dependency of libselinux package might change and we may return
wrong list of linked libraries.
http://bugs.freedesktop.org/show_bug.cgi?id=4738http://err.no/personal/blog/tech/2008-03-25-18-07_pkg-config,_sonames_and_Requires.private
A shortcut for --ignorelockingfailure, --ignoremonitoring, --poll n options
and LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES environment variable used all at
once in initialisation scripts (e.g. rc.sysinit or initrd).
Everywhere else in the API the caller can rely on lvm2app taking care of
memory allocation and free, so make the 'name' and 'uuid' properties of a
vg/lv/pv use the vg handle to allocate memory.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Patch is inspired by Debian's extra patch.
- removes OWNER & GROUP make vars they are parts of INSTALL command.
- adds INSTALL_PROGRAM for executable, uses $(INSTALL)
- adds INSTALL_DATA for non-executable data, uses ($INSTALL)
- adds INSTALL_WDATA for writable non-executable data, uses ($INSTALL)
- adds configure option --enable-write_install - to support
installatin of writable files used by distribution
- replaces usage of ifeq @LIB_SUFFIX@ with $(LIB_SUFFIX)
- installs .a files from static builds without executable flag
- installs .a files to $(usrlibdir) instead of $(libdir)
- installs all static binaries to $(staticdir)
- create .so links for devel package in $(usrlibdir) instead of
$(libdir)
- makes .so and .so.LIB_VERSION files within builddir
- removes VERSIONED_SHLIB and created versioned LIB_SHARED automagicaly
- install LIB_SHARED via install_lib_shared target
- install plugins via install_lib_shared_plugin target
- prints whole 'install' command during installation instead of less
informative "Installing $(something) $(somewhere)"
- install multiple man pages with one INSTALL command
- use DISTCLEAN_TARGETS instead of creating multiple distclean targets
Usage of VPATH makes troubles when used within $(builddir).
Not only source files are being found through VPATH,
but targets as well. (make --debug=v)
Thus if user builds the code in $(srcdir) and also in some $(builddir)
he gets mangled results as some generated files (i.e. .export.sym)
are 'reused' from $(srcdir) instead of $(builddir).
This patch switches to use vpath were we could explicitly name
suffixes that should be looked via vpath - we must take care,
we do not generate files with these suffixes:
.c, .in, .po, .exported_symbols
. Add "monitoring" option to "activation" section of lvm.conf
. Have clvmd consult the lvm.conf "activation/monitoring" too.
. Introduce toollib.c:get_activation_monitoring_mode().
. Error out when both --monitor and --ignoremonitoring are provided.
. Add --monitor and --ignoremonitoring support to lvcreate. Update
lvcreate man page accordingly.
. Clarify that '--monitor' controls the start and stop of monitoring in
the {vg,lv}change man pages.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This option should be configurable, but for now
do not set it at all.
(lvm2app is used in udisks probers and there
cac cause several nasty races when trying to update
lvmcache during rescan.)
Fix add/remove tag function headers.
Fix a lot of little problems with doxygen comments.
Clarify the basic objects and their handles, and place functions with their
appropriate handles/objects.
All this cleanup moves automatic documentation of lvm2app much closer to being
useful as official documentation. In the future I will add some examples
and plan to build the examples as part of the unit tests.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Add lvm2app functions to manage LV tags.
For lvm_lv_get_tags(), we return a list of tags, similar to other
functions that return lists. An empty list is returned if there
are no tags. NULL is returned if there is a problem obtaining
the list of tags.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Add lvm2app functions to manage VG tags.
For lvm_vg_get_tags(), we return a list of tags, similar to other
functions that return lists. An empty list is returned if there
are no VG tags. NULL is returned if there is a problem obtaining
the list of tags.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Add a supporting function to copy a list of internal tags to lvm2app list.
We need to put this here because of the lvm_str_list_t type which we export
in lvm2app.h. If we didn't export this type, we could put this in the
internal library and use struct str_list.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Internally we store sizes in sectors, but lvm2app exports sizes
in bytes. We could get fancier and allow units configuration but
this fix should do for now.
Fixes rhbz561422.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
where we should not expose internal VG names/uuids (the ones with "#" prefix )through the
interface. Otherwise, we could end up with library users opening internal VGs which will
initiate locking mechanism that won't be cleaned up properly.
"#orphans_{lvm1, lvm2, pool}" names are treated in a special way, they are truncated first
to "orphans" and this is used as a part of the lock name then (e.g. while calling lvm_vg_open()).
When library user calls lvm_vg_close(), the original name "orphans_{lvm1, lvm2, pool}"
is used directly and therefore no unlock occurs.
We should exclude internal VG names and uuids in the lists provided by lvmcache:
lvmcache_get_vgids() and lvmcache_get_vgnames().
more descriptive message if locking fails instead of
"Locking type -1 initialisation failed."
Use read-only locking instead of misleading ignorelocking option
in message.
Rename fill_default_pvcreate_params to pvcreate_params_set_defaults.
Rename pvcreate_validate_restore_params to pvcreate_restore_params_validate.
Rename pvcreate_validate_params to pvcreate_params_validate.
We need defaults for pvcreate_params at a higher level - this will
allow us to use a common function from the tools to take defaults,
then fill in any non-defaults from the commandline.
Future patches will refactor vgcreate/vgextend to call this function
if one or more pvcreate parameters are given on the commandline.
Another refactoring for implicit pvcreate support. We need to get
the pvcreate parameters somehow to the vg_extend routine. Options
seemed to be:
1. Attach the parameters to struct volume_group. I personally
did not like this idea in most cases, though one could make an
agrument why it might be ok at least for some of the parameters
(e.g. metadatacopies).
2. Pass them in to the extend routine. This second route seemed
to be the best approach given the constraints.
Future patches will parse the command line and fill in the actual
values for the pvcreate_single call.
Should be no functional change.
Of the vgs field vg_attr, a few of the most likely to be used attributes
are clustered, exported, and partial. This patch adds the following 3
functions:
uint64_t lvm_vg_is_clustered(const vg_t vg)
uint64_t lvm_vg_is_exported(const vg_t vg)
uint64_t lvm_vg_is_partial(const vg_t vg)
Now that we've refactored the internal library functions that do the
vg_remove, we can handle the deferred commit of a lvm_vg_remove() inside
lvm_vg_write(). This makes the VG create/remove API more consistent in
terms of disk commits - they now both require an lvm_vg_write() to commit
the create or remove to disk.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Author: Dave Wysochanski <dwysocha@redhat.com>
Split vg_remove_single into vg_remove_check (mandatory checks before
vgremove) and vg_remove (do actual remove by committing to disk).
In liblvm, we'd like to provide an consistent API that allows multiple
changes in memory, then let lvm_vg_write() control the commit to disk. In
some cases (for example, lvresize calls fsadm) this may not be possible.
However, since we are using an object model and dividing things into small
operations, the most logical model seems to be the lvm_vg_write model, and
handling the special cases as they arrive. So as best as possible
we move towards this end.
A possible optimization would be to consolidate vg_remove (committing)
code with vgreduce code. A second possible optimization is making vgreduce
of the last device equivalent to vgremove. Today, lvm_vg_reduce fails if
vgreduce is called with the last device, but from an object model perspective
we could view this as equivalent to vgremove and allow it. My gut feel is
we do not want to do this though.
Author: Dave Wysochanski <dwysocha@redhat.com>
This patch update pv_t handle to be consistent with lvm_t - define as a pointer
to internal struct physical_volume.
Author: Dave Wysochanski <dwysocha@redhat.com>
This patch update lv_t handle to be consistent with lvm_t - define as a pointer
to internal struct logical_volume.
Author: Dave Wysochanski <dwysocha@redhat.com>
This patch update vg_t handle to be consistent with lvm_t - define as a pointer
to internal struct volume_group.
Author: Dave Wysochanski <dwysocha@redhat.com>
