| Commit message (Collapse) | Author | Age | Files | Lines |
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Detection is simply by prefix - dm_ or lvm_ - and any additional symbols needed
but not detected this way are placed in .exported_symbols.
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Introducing dm_tree_node_set_presuspend_node() for presuspending child
node (i.e. replicator control target) before deactivation of parent node
(i.e. replicator-dev target).
This patch presents no functional change to current dtree - only
replicator target currently sets presuspend node for dev nodes.
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Introducing new API calls:
dm_tree_node_add_replicator_target()
dm_tree_node_add_replicator_dev_target().
Define new typedef dm_replicator_mode_t.
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- add DM_UDEV_DISABLE_LIBRARY_FALLBACK udev flag to rely on udev only
- export dm_udev_create_cookie function to create new cookies on demand
- add --udevcookie, udevcreatecookie and udevreleasecookie for dmsetup
(to support "udev transactions" where one cookie value can be used for
several dmsetup calls)
- don't use DM_UDEV_DISABLE_CHECKING env. var. anymore and set the state
automatically (based on udev and libdevmapper dev path comparison)
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Introduces new libdevmapper function dm_tree_node_add_snapshot_merge_target
Verifies that the kernel (dm-snapshot) provides the 'snapshot-merge'
target.
Activate origin LV as snapshot-merge target. Using snapshot-origin
target would be pointless because the origin contains volatile data
while a merge is in progress.
Because snapshot-merge target is activated in place of the
snapshot-origin target it must be resumed after all other snapshots
(just like snapshot-origin does) --- otherwise small window for data
corruption would exist.
Ideally the merging snapshot would not be activated at all but if it is
to be activated (because snapshot was already active) it _must_ be done
after the snapshot-merge. This insures that DM's snapshot-merge target
will perform exception handover in the proper order (new->resume before
old->resume). DM's snapshot-merge does support handover if the reverse
sequence is used (old->resume before new->resume) but DM will fail to
resume the old snapshot; leaving it suspended.
To insure the proper activation sequence dm_tree_activate_children() was
updated to accommodate an additional 'activation_priority' level. All
regular snapshots are 0, snapshot-merge is 1, and merging snapshot is 2.
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Sometimes it is really needed to switch off udev checking and the warnings we show when
we detect that udev has not done its job right - the messages like "Udev should have done
this and that. Falling back to direct node creation/removal. " etc.
This would be especially handy while setting DM_DEV_DIR env var that could be set to a
different location than standard /dev (udev can't create nodes/symlinks out of that one
directory that is configured into udevd). The exact same situation happens while we're
running our tests.
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Add dm_tree_add_dev_with_udev_flags to provide wider support for udev flags.
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Currently this data is invisible to userspace.
Requires dm >= 4.16 (likely to be in linux 2.6.33).
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dm_tree_add_new_dev_with_udev_flags wrapper for dm_tree_add_new_dev.
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Change plog to use dm_log_with_errno unless deprecated dm_log_init was used.
Rename plog macro to LOG_LINE and use in dm_dump_memory_debug.
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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).
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- 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.
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This allows online mirror resize, also removes condition to preventing
code to do this.
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(Not live yet.)
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* lib/libdm-file.c (dm_create_dir): Rename from create_dir.
* lib/libdevmapper.h (dm_create_dir): Declare.
* lib/.exported_symbols: Add dm_create_dir.
* lib/ioctl/libdm-iface.c (_create_control): Update sole use.
Patch by Jun'ichi Nomura. Details in
http://www.redhat.com/archives/lvm-devel/2007-July/msg00040.html
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* lib/libdevmapper.h: Declare it.
* lib/libdm-file.c (dm_fclose): Define it.
* lib/.exported_symbols: Add dm_fclose.
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Rename dm_saprintf() to dm_asprintf().
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Export dm_basename().
Cope with a trailing space when comparing tables prior to possible reload.
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Add basic dmsetup loop support.
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Fix misc compile-time warnings.
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Use names instead of numbers in messages when ioctls fail.
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Suppress attempt to reload identical table.
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