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lvm has a default umask value in the config file that defaults
to 0077 which lvm changes to during normal operation. This
causes a problem when the code is used as a library with
liblvm as it is changing the umask for the process. This
patch saves off the current umask, sets to what is specified
in the config file and restores it what it was on library
function call exit.
The user is now free to change the umask in their application at
anytime including between library calls.
This fix address BZ:
https://bugzilla.redhat.com/show_bug.cgi?id=1012113
Tested by setting umask to 0777 and running the python unit
test and verifying that umask is still same value as expected
at the test completion and with a successful run.
Signed-off-by: Tony Asleson <tasleson@redhat.com>
Add a PV create which takes a paramters object that
has get/set method to configure PV creation.
Current get/set operations include:
- size
- pvmetadatacopies
- pvmetadatasize
- data_alignment
- data_alignment_offset
- zero
Reference: https://bugzilla.redhat.com/show_bug.cgi?id=880395
Signed-off-by: Tony Asleson <tasleson@redhat.com>
When the system has no PVs we don't have access to
the cmd pointer and it remains NULL which causes
a seg. fault when we try to free the VG lock.
Signed-off-by: Tony Asleson <tasleson@redhat.com>
Add thin and thin pool lv creation support to lvm library
This is Mohan's thinp patch, re-worked to include suggestions
from Zdenek and Mohan.
Rework of commit 4d5de8322b
which uses refactored properties handling.
Based on work done by M. Mohan Kumar <mohan@in.ibm.com>
Signed-off-by: Tony Asleson <tasleson@redhat.com>
Start separating the validation from the action in the basic lvresize
code moved to the library.
Remove incorrect use of command line error codes from lvresize library
functions. Move errors.h to tools directory to reinforce this,
exporting public versions of the error codes in lvm2cmd.h for dmeventd
plugins to use.
Update code to match lvm coding standards
Disable/skip test - since it's accessing VGs available in the system.
Before reenable - validate it's not touching any PV outside those
created during test.
The pv resize code required that a lvm_vg_write be done
to commit the change. When the method to add the ability
to list all PVs, including ones that are not assocated with
a VG we had no way for the user to make the change persistent.
Thus additional resize code was move and now liblvm calls into
a resize function that does indeed write the changes out, thus
not requiring the user to explicitly write out he changes.
Signed-off-by: Tony Asleson <tasleson@redhat.com>
Code move and changes to support calling code from
command line and from library interface.
V2 Change lock_vol call
Signed-off-by: Tony Asleson <tasleson@redhat.com>
As locks are held, you need to call the included function
to release the memory and locks when done transversing the
list of physical volumes.
V2: Rebase fix
V3: Prevent VGs from getting cached and then write protected.
Signed-off-by: Tony Asleson <tasleson@redhat.com>
Add thin and thin pool lv creation support to lvm library
This is Mohan's thinp patch, re-worked to include suggestions
from Zdenek and Mohan.
V2: Remove const lvm_lv_params_create_thin
Add const lvm_lv_params_skip_zero_get
V3: Changed get/set to use generic functions like current
property
V4: Corrected macro in properties.c
V5: Fixed a bug in liblvm/lvm_lv.c function lvm_lv_create.
incorrectly used pool instead of lv_name when doing the
find_lv_in_vg call.
Based on work done by M. Mohan Kumar <mohan@in.ibm.com>
Signed-off-by: Tony Asleson <tasleson@redhat.com>
Tested condition has been already evaluated before
For strlen() code has already excluded <ID_LEN.
For repairing, already tested (!argc && !repairing) before.
Add a generic PV property function to lvm2app, similar to VG function.
Return lvm_property_value and require caller to check 'is_valid' flag
before using the value. If 'is_valid' is not set, then lvm_errno()
should be used to obtain the specific error.
Add supporting functions for pv_uuid, vg_uuid, and lv_uuid.
Call new function id_format_and_copy. Use 'const' where appropriate.
Add "_dup" suffix to indicate memory is being allocated.
Call {pv|vg|lv}_uuid_dup from lvm2app uuid functions.
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>
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>
These lower-priority interfaces are not currently implemented in liblvm
but are on the TODO list in the near term.
Author: Thomas Woerner <twoerner@redhat.com>
Acked-by: Dave Wysochanski <dwysocha@redhat.com>
Add the most straightforward 'get' functions required for anaconda.
These are the ones that return simple uint64_t values.
The other more complex ones involve the lv_attr bits. These will
come in a separate patch series since each lv_attr bit will be returned
in a separate API instred of returning the string and requiring the
user to parse it.
Author: Dave Wysochanski <dwysocha@redhat.com>
Caller must free the memory of the uuid / name returned.
This may not be the best memory management policy since it may lead to
memory leaks if the caller has code like this:
if (!lvm_vg_get_name(vg))
Maybe we don't care - if we do we can use pools tied to handles later
or some other scheme.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Acked-by: Thomas Woerner <twoerner@redhat.com>
