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Sun May 3 13:12:28 CEST 2009 Petr Rockai <me@mornfall.net>
* Convert vgsplit to use vg_read_for_update.
Author: Petr Rockai <prockai@redhat.com>
Committer: Dave Wysochanski <dwysocha@redhat.com>
Sun May 3 13:06:14 CEST 2009 Petr Rockai <me@mornfall.net>
* Don't segfault in vg_release when vg->cmd is NULL.
Author: Petr Rockai <prockai@redhat.com>
Committer: Dave Wysochanski <dwysocha@redhat.com>
Sun May 3 12:54:28 CEST 2009 Petr Rockai <me@mornfall.net>
* Convert vgrename to vg_read_for_update.
Rebased 6/26/2009 - Dave W.
Author: Petr Rockai <prockai@redhat.com>
Committer: Dave Wysochanski <dwysocha@redhat.com>
Sun May 3 12:32:30 CEST 2009 Petr Rockai <me@mornfall.net>
* Rework the toollib interface (process_each_*) on top of new vg_read.
Rebased 6/26/09 by Dave W.
- Add skipping message to process_each_lv
- Remove inconsistent_t.
Sun May 3 11:40:51 CEST 2009 Petr Rockai <me@mornfall.net>
* Convert the straight instances of vg_lock_and_read to new vg_read(_for_update).
Rebased 6/26/09 by Dave W.
Sun May 3 11:40:51 CEST 2009 Petr Rockai <me@mornfall.net>
* Convert the straight instances of vg_lock_and_read to new vg_read(_for_update).
Author: Petr Rockai <prockai@redhat.com>
Committer: Dave Wysochanski <dwysocha@redhat.com>
Is an application uses query and set major:minor
to device, it should not fallback to default major by default.
Add new function whoich allows that (and use it in lvm2).
- validate the specified device is a PV and that it is in a VG
- automatically enable DEBUG (-d) if >= 4 -v instances were supplied
- preserve TMP_LVM_SYSTEM_DIR if it contains an lvm.conf and -d was
specified
- fix handling of special-case where PV is listed as "unknown device"
- more descriptive error when a PV is missing ("unknown device")
- unset LVM_SYSTEM_DIR if it was not originally set
- skip final vgscan if no changes were made
http://bugzilla.redhat.com/show_bug.cgi?id=500861
- Update list of fields/columns for each command (a few missing).
- Update list order to match "-o help" output (easier to verify field list)
- Add "{pv|vg|lv}_all" description.
- Move "-o help" sentence above column/field list.
New sample man page for lvs (pvs and vgs are similar):
-o, --options
Comma-separated ordered list of columns. Precede the list with ’+’ to append to the
default selection of columns instead of replacing it.
Use -o lv_all to select all logical volume columns, and -o seg_all to select all logical
segment columns.
Use -o help to view the full list of columns available.
Column names include: lv_uuid, lv_name, lv_attr, lv_major, lv_minor, lv_read_ahead,
lv_kernel_major, lv_kernel_minor, lv_kernel_read_ahead, lv_size, seg_count, origin, ori-
gin_size, snap_percent, copy_percent, move_pv, convert_lv, lv_tags, mirror_log, modules,
segtype, stripes, stripesize, regionsize, chunksize, seg_start, seg_start_pe, seg_size,
seg_tags, seg_pe_ranges, devices.
With --segments, any "seg_" prefixes are optional; otherwise any "lv_" prefixes are
optional. Columns mentioned in vgs (8) can also be chosen.
The lv_attr bits are:
E.g.
# vgscan
Parse error at byte 2360 (line 54): expected a value
Failed to load config file /etc/lvm/lvm.conf
You have a memory leak (not released memory pool):
[0x818c788] library (12 bytes)
...
status flag after reading the volume group. Thus, no need to set the flag
in vg_read() or clear it later before calling _vg_bad_status_bits().
Also, add back in the !lockingfailed() as part of the CLUSTERED flag check.
It's unclear why it was removed when the check was moved from
_vg_bad_status_bits() to inside _vg_lock_and_read().
There was an open question about the last check in the 'if' stmt for
lockingfailed() with a previous patch submitted. However, I would
defer that right now as it is a separate item and this patch should
be no functional change by including the !lockingfailed().
Petr acked this patch on 5/26 I just forgot to check it in.
Acked-by: Petr Rockai <prockai@redhat.com>
- it can support multiple segments, but note that
to work properly, correct IV (initialization vector)
offset parameter must be set properly.
Because most usage of IV start offset is when we join
several crypto segments together (so iv_offset is the segment
start offset), DM_CRYPT_IV_DEFAULT is defined to simplify
the process.
Function accepts the string in cipher agrument (already
including chainmode and iv type; chainmode and iv parameters are NULL
in this case) or user can provide split parameters which will
join into dm-crypt cipher specification "cipher-chainmode-iv".
All these parameters must be supplied in correct dm-crypt format.
Various tools need to check for existence of a VG before doing something
(vgsplit, vgrename, vgcreate). Currently we don't have an interface to
check for existence, but the existence check is part of the vg_read* call(s).
This patch is an attempt to pull out some of that functionality into a
separate function, and hopefully simplify our vg_read interface, and
move those patches along.
vg_lock_newname() is only concerned about checking whether a vg exists in
the system. Unfortunately, we cannot just scan the system, but we must first
obtain a lock. Since we are reserving a vgname, we take a WRITE lock on
the vgname. Once obtained, we scan the system to ensure the name does
not exist. The return codes and behavior is in the function header.
You might think of this function as similar to an open() call with
O_CREAT and O_EXCL flags (returns failure with -EEXIST if file already
exists).
NOTE: I think including the word "lock" in the function name is important,
as it clearly states the function obtains a lock and makes the code more
readable, especially when it comes to cleanup / unlocking. The ultimate
function name is somewhat open for debate though so later we may rename.
- PPC uses 64k page, some caculations are wrong in tests
- file utility is buggy on PPC and cannot detect swap, use blkid instead
- read ahead is quietly rounded down according to page size
(for now use some common divisor value in test)
