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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.
Allow parsing of --vgmetadatacopies for vgcreate. Accept
--metadatacopies as a synonym for --vgmetadatacopies.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
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.
Going forward, we would like to allow users to specify the total
number of metadatacopies in a VG rather than on a per-PV basis. In
order to facilitate that, introduce --pvmetadatacopes to replace
--metadatacopies everywhere. We still allow --metadatacopies for
pv commands, but require --pvmetadatacopies for vg commands.
Eventually we will introduce --vgmetadatacopies. Once we do that,
we should either deprecate --metadatacopies or make it a synonym based
on the command (pvmetadatacopies for pv commands, and vgmetadatacopies
for vg commands). The latter option would likely just require a simple
'strncpy' check against cmd->command->name to qualify the merge_synonym
call.
Update nightly tests to cover the pvmetadatacopies synonym.
Note that this patch is the result of an eariler review comment for
the implicit pvcreate patches. Should apply cleanly on top of the
implicit pvcreate patches (I applied after patch 10/10 in that series).
NOTE: This patch will require --pvmetadatacopies for vgconvert as
--metadatacopies is no longer accepted.
Adds implicit pvcreate support when calling vgcreate or vgextend with
device paths that are not yet PVs. This changes the behavior of vgcreate
and vgextend from failing with an error message to implicitly pvcreating.
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.
We must hold the VG_ORPHAN lock until we commit to disk. Otherwise,
we risk a race condition on vgcreate / vgextend. Reverts the following
commit:
commit 72a41480ba
Author: Dave Wysochanski <dwysocha@redhat.com>
Date: Fri Jul 10 20:09:21 2009 +0000
Move orphan lock obtain/release inside vg_extend().
With this change we now have vgcreate/vgextend liblvm functions.
Note that this changes the lock order of the following functions as the
orphan lock is now obtained first. With our policy of non-blocking
second locks, this should not be a problem.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
With this change we now have vgcreate/vgextend liblvm functions.
Note that this changes the lock order of the following functions as the
orphan lock is now obtained first. With our policy of non-blocking
second locks, this should not be a problem.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
vg_t *vg_create(struct cmd_context *cmd, const char *vg_name);
This is the first step towards the API called to create a VG.
Call vg_lock_newname() inside this function. Use _vg_make_handle()
where possible.
Now we have 2 ways to construct a volume group:
1) vg_read: Used when constructing an existing VG from disks
2) vg_create: Used when constructing a new VG
Both of these interfaces obtain a lock, and return a vg_t *.
The usage of _vg_make_handle() inside vg_create() doesn't fit
perfectly but it's ok for now. Needs some cleanup though and I've
noted "FIXME" in the code.
Add the new vg_create() plus vg 'set' functions for non-default
VG parameters in the following tools:
- vgcreate: Fairly straightforward refactoring. We just moved
vg_lock_newname inside vg_create so we check the return via
vg_read_error.
- vgsplit: The refactoring here is a bit more tricky. Originally
we called vg_lock_newname and depending on the error code, we either
read the existing vg or created the new one. Now vg_create()
calls vg_lock_newname, so we first try to create the VG. If this
fails with FAILED_EXIST, we can then do the vg_read. If the
create succeeds, we check the input parameters and set any new
values on the VG.
TODO in future patches:
1. The VG_ORPHAN lock needs some thought. We may want to treat
this as any other VG, and require the application to obtain a handle
and pass it to other API calls (for example, vg_extend). Or,
we may find that hiding the VG_ORPHAN lock inside other APIs is
the way to go. I thought of placing the VG_ORPHAN lock inside
vg_create() and tying it to the vg handle, but was not certain
this was the right approach.
2. Cleanup error paths. Integrate vg_read_error() with vg_create and
vg_read* error codes and/or the new error APIs.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
As a simplification to the tools and further liblvm, this patch pushes
the setting of NON_BLOCKING lock flag inside the lock_vol() call.
The policy we set is if any existing VGs are currently locked, we
set the NON_BLOCKING flag.
Should be no functional change.
with the second vgcreate overwriting the first.
Obtain lock before calling vg_create(), which checks for existence of vgname
and fails if it already exists.
Fix missing VG unlocks in some pvchange error paths.
Add some missing validation of VG names.
Rename validate_vg_name() to validate_new_vg_name().
Change orphan lock to VG_ORPHANS.
Change format1 to use ORPHAN as orphan VG name.
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.
