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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>
Document existing pe_start policy.
Fix issue in _text_pv_setup() where existing pe_start case could have
the pv->pe_start set to pv->pe_align even though pe_start shouldn't ever
change.
vgconvert and pvcreate have a facility to preserve the existing start
of the on-disk data extents, known as pe_start.
They indicate this by passing the existing value to the pvsetup function
which must preserve it.
This patch avoids one particular case where the value could get
changed incorrectly now that the alignment settings are configurable.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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>
