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path: root/sys/dev/dm/dm_target_error.c
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2020-01-21dm: #if0 target's ->upcall() handlertkusumi
This is part of NetBSD's dm design, but unimplemented (all handlers return 0) and also unused.
2019-12-23dm: Make target's ->table() optionaltkusumi
Since ->info() (counter part of ->table() in the original dm design in Linux kernel in .status where both INFO and TABLE are optional) is an optional handler, make ->table() optional as well. Some targets don't have anything to do in ->table() just as in ->info(). taken-from: DragonFlyBSD
2019-12-21dm: Remove target's ->deps() by implementing deps in dm coretkusumi
Retrieving device dependencies doesn't need to be target specific. The reason it currently needs ->deps() is because dm core doesn't have data structure that allows table to walk through target's underlying devices. Add struct dm_mapping to be able to do this, and remove ->deps()'s from targets which basically do the same thing. =====(A) before this commit table | [dm core] ------------------------------------------------------- | pdev pdev pdev [dm targets] v ^ ^ ^ target----/---------/---------/ (void*) =====(B) this commit table---->mapping-->mapping-->mapping-->... | | | | | v v v [dm core] ------------------------------------------------------- | pdev pdev pdev [dm targets] v ^ ^ ^ target----/---------/---------/ (void*) taken-from: DragonFlyBSD
2019-12-18dm: Test # of args in target's ->init()tkusumi
The # of args is part of target's spec. Both Linux kernel and DragonFlyBSD test argc on ctr/init.
2019-12-16dm: Enable dm-error and dm-zero targettkusumi
Add these two targets to dm.kmod. These are generally available in Linux and DragonFlyBSD, so enable them in NetBSD as well.
2019-12-15dm: Style cleanups (no functional changes)tkusumi
2019-12-15dm: Make targets' ->sync() optionaltkusumi
Apparently some targets have nothing to sync, so make it optional.
2019-12-15dm: Make targets' ->secsize() optionaltkusumi
and make a caller assume secsize 0 if ->secsize not present. This allows a dummy function to be removed which was added in "dm: Add dummy target ->sync()/->secsize() to prevent panic on modload(8)".
2019-12-15dm: Rename targets' ->status() to ->table() given ->info() existstkusumi
Since now that dm targets in NetBSD have ->info() for "status", ->status() should be renamed to ->table() for "table", given how dm target status was originally designed in Linux kernel. taken-from: DragonFlyBSD
2019-12-14dm: Remove unconditional debug prints in targets' ->strategy()tkusumi
Having debug prints in ->strategy() by default just to tell ->strategy() is called is overkill. taken-from: DragonFlyBSD
2019-12-12dm: Make target's ->init() take parsed argc and argvtkusumi
This gets rid of the same parser code in each target using strsep(3). taken-from: DragonFlyBSD
2019-12-08dm: Add dummy target ->sync()/->secsize() to prevent panic on modload(8)tkusumi
dm_target_insert() has assertions to ensure targets implement all handlers. Adding dummy ones at least prevents panic on modload(8).
2019-12-08dm: Refactor target's ->init() i/ftkusumi
Take dm_table_entry_t* instead of void**. Remove dm_dev_t* unneeded by target code. No functional change, but for future changes. taken-from: DragonFlyBSD
2019-12-07dm: Fix strange pointer declarationstkusumi
Should be "type *name" or "type* name", but not "type * name". taken-from: DragonFlyBSD
2019-12-06dm: Don't ignore dm_target_alloc() argumenttkusumi
dm_target_alloc() is supposed to be copying the name argument to its ->name. taken-from: DragonFlyBSD
2019-12-05dm: Make dm core set config to NULL after destroytkusumi
Just let dm core do this instead of having a comment expecting each target to do the right thing. taken-from: DragonFlyBSD
2019-12-01dm: Remove unused dm_dev::dev_typetkusumi
Given OOP-like architecture of dm target device structure, dm_dev doesn't need to have self contained target type field, and in fact this is unused.
2018-01-05use some size_t, add whitespace between functions, rcsids.christos
2010-05-18Add support for DIOCCACHESYNC ioctl for dm devices. Add new sync functionhaad
pointer to dm_target_t because that is the only part of dm which know real block device. disk_ioctl_switch parses whole device table and for every entry it calls particular sync routine which propagates DIOCCACHESYNC to real disk. While I was here implement some KNF fixes and remove unneeded symbols from dm.h. Problem reported on port-xen@ by Hugo Silva.
2010-01-04Indent files remove unnecessary blank lines, white spaces and KNFize code.haad
2009-12-01Revert my commit which have added knowledge about dm targets to libdevmapper,haad
this breaks abstraction. Because only lvmtools/lvmlib and device-mapper can have knowledge about target mapping and libdevmapper only passes requests from lvmtools to kernel and back. Bump major library and driver version. Requested by: yamt@
2009-06-05Parse dm param string in libdevmapper and not in a dm target init function.haad
Create proplib param dictionary entry in libdevmapper and pass it to dm in dm_ioctl dict. Param target is then passed to target init function, where is parse. I like this aproach much better than passing char **argv and trusting to user input. I have bumped minor lib/driver version. XXX. Add more sanity checks in kernel.
2009-02-19Add support for autoloading of device-mapper targets modules. Addhaad
dm_target_autoload function which tries to load target module. Fix two deadlocks in dm_table_load_ioctl error path(I forgot to call dm_dev_unbusy).
2009-01-14Add dm module as dependency and remove module_hold/module_rele calls.haad
2009-01-02Properly register dm_target_* modules with module framework.haad
2008-12-21Add support for loading dm targets as separate modules. All targets excepthaad
linear can be loaded as module. Module is not loaded when there is target with similar name already. Zero and error targets aresimple examples how can be all future targets written to support dynamic loading. Target can't be unloaded until there is at least one user.
2008-12-19Add infrastructure needed to load device-mapper targets as modules.haad
Targets wasn't converted yet and at least snapshot target will be converted in a near future.
2008-12-19Merge the haad-dm branch to -current. This branch adds LVM functionality tohaad
the base NetBSD system. It uses Linux LVM2 tools and our BSD licensed device-mapper driver. The device-mapper driver can be used to create virtual block devices which maps virtual blocks to real with target mapping called target. Currently these targets are available a linear, zero, error and a snapshot (this is work in progress and doesn't work yet). The lvm2tools adds lvm and dmsetup binary to based system, where the lvm tool is used to manage and administer whole LVM and the dmestup is used to communicate iwith device-mapper kernel driver. With these tools also a libdevmapper library is instaled to the base system. Building of tools and driver is currently disable and can be enabled with MKLVM=yes in mk.conf. I will add sets lists and rc.d script soon. Oked by agc@ and cube@.