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Remove the checks for vg_read_error() in most of the tools callback
functions and instead make the check in _process_one_vg() more general.
In all but vgcfgbackup, we do not want to proceed if we get any error
from vg_read(). In vgcfgbackup's case, we may proceed if the backup
is to proceed with inconsistent VGs. This is a special case though,
and we mark it with the READ_ALLOW_INCONSISTENT flag passed to
process_each_vg (and subsequently to _process_one_vg).
NOTE: More cleanup is needed in the vg_read_error() path cases.
This patch is a start.
- add DM_UDEV_RULES_VSN to provide a variable to be checked for in the other
rules (e.g. to check that DM rules are actually installed, we can alternate
functionality in the other rules based on this information, also we have
versioning support for the rules)
- set proper sbin path for dmsetup and blkid, /sbin first, then /usr/sbin.
This is necessary for anaconda to work properly.
- add 'last_rule' for cryptsetup's temporary devices (symlinks in /dev/mapper
only)
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>
Add a new constraint that vgname locks must be obtained in
alphabetical order. At this point, we have test coverage for
the 3 commands affected - vgsplit, vgmerge, and vgrename.
Tests have been updated to cover these commands.
Going forward any command or library call that must obtain
more than one vgname lock must do so in alphabetical order.
Future patches will update lvm2app to enforce this ordering.
Author: Dave Wysochanski <dwysocha@redhat.com>
interface it should be using, it can still be overriden with -I.
If corosync isn't running or there is no information then the usual
checking will happen.
This code only builds if corosync is available.
# pvcreate -u udwxr7-BoKY-EeKM-r033-xK6o-4og7-F13sGi /dev/sdc
uuid udwxr7BoKYEeKMr033xK6o4og7F13sGi|��� already in use on "/dev/sdb1"
is now
# pvcreate -u udwxr7-BoKY-EeKM-r033-xK6o-4og7-F13sGi /dev/sdc
uuid udwxr7-BoKY-EeKM-r033-xK6o-4og7-F13sGi already in use on "/dev/sdb1"
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()).
The changes to remove LCK_NONBLOCK from the LVM locks broke clvmd because the
code was clearly wrong but working anyway! The constant was being masked rather
than the variable that was supposed to match against it.
Adds 'data_alignment_detection' config option to the devices section of
lvm.conf. If your kernel provides topology information in sysfs (linux
>= 2.6.31) for the Physical Volume, the start of data area will be
aligned on a multiple of the ’minimum_io_size’ or ’optimal_io_size’
exposed in sysfs.
minimum_io_size is used if optimal_io_size is undefined (0). If both
md_chunk_alignment and data_alignment_detection are enabled the result
of data_alignment_detection is used.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
If the pvcreate --dataalignmentoffset option is not specified the start
of a PV's aligned data area will be shifted by the associated
'alignment_offset' exposed in sysfs (unless
devices/data_alignment_offset_detection is disabled in lvm.conf).
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Documented which use-cases force the reinstatement of the nuanced
handling of pe_start. As soon as orphan PVs are eliminated much of this
will no longer be a concern ('preserve_pe_start' can be reenabled in
.pv_setup).
Added defensive 'if (pv->pe_align)' check in _text_pv_write()'s pe_start
loop.
If pv_setup was given a non-zero pe_start it would short-circuit
establishing a default pv->pe_align. pv->pe_align=0 would result
in a divide by zero in _mda_setup(). 'vgconvert -M2 $vgname' hit this.
.pv_write still properly preserves pe_start if it was supplied.
Adds pe_align_offset to 'struct physical_volume'; is initialized with
set_pe_align_offset(). After pe_start is established pe_align_offset is
added to it.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Without this fix rounding the end of the first mda to a pe_align
boundary could silently exceed the disk_size.
Final 'if (start1 + mda_size1 > disk_size)' block serves as a safety
net.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
