| History log of /src/sys/dev/dm/dm_target_snapshot.c |
| Revision | | Date | Author | Comments |
| 1.38 |
| 21-Jan-2020 |
tkusumi | dm: #if0 target's ->upcall() handler
This is part of NetBSD's dm design, but unimplemented
(all handlers return 0) and also unused.
|
| 1.37 |
| 21-Dec-2019 |
tkusumi | branches: 1.37.2;
dm: Remove target's ->deps() by implementing deps in dm core
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
|
| 1.36 |
| 15-Dec-2019 |
tkusumi | dm: Rename dm specific atoi() to atoi64()
This is uint64_t version, not sys/lib/libsa/atoi.c.
|
| 1.35 |
| 15-Dec-2019 |
tkusumi | dm: Style cleanups (no functional changes)
|
| 1.34 |
| 15-Dec-2019 |
tkusumi | dm: Make targets' ->sync() optional
Apparently some targets have nothing to sync, so make it optional.
|
| 1.33 |
| 15-Dec-2019 |
tkusumi | dm: Make targets' ->secsize() optional
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)".
|
| 1.32 |
| 15-Dec-2019 |
tkusumi | dm: Rename targets' ->status() to ->table() given ->info() exists
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
|
| 1.31 |
| 14-Dec-2019 |
tkusumi | dm: Remove unconditional debug prints in targets' ->strategy()
Having debug prints in ->strategy() by default just to tell ->strategy()
is called is overkill.
taken-from: DragonFlyBSD
|
| 1.30 |
| 12-Dec-2019 |
tkusumi | dm: Make target's ->init() take parsed argc and argv
This gets rid of the same parser code in each target using strsep(3).
taken-from: DragonFlyBSD
|
| 1.29 |
| 08-Dec-2019 |
tkusumi | dm: Add dummy target ->sync()/->secsize() to prevent panic on modload(8)
dm_target_insert() has assertions to ensure targets implement all handlers.
Adding dummy ones at least prevents panic on modload(8).
|
| 1.28 |
| 08-Dec-2019 |
tkusumi | dm: Move targets specific structs to .c files
These don't need to be defined and exposed in dm.h.
|
| 1.27 |
| 08-Dec-2019 |
tkusumi | dm: Unbreak compilation of kernel modules
The dm kernel modules (MK_DM_TARGETS enabled in sys/modules/dm/Makefile)
have been broken. Unbreak the build.
|
| 1.26 |
| 08-Dec-2019 |
tkusumi | dm: Refactor target's ->init() i/f
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
|
| 1.25 |
| 07-Dec-2019 |
tkusumi | dm: Fix strange pointer declarations
Should be "type *name" or "type* name", but not "type * name".
taken-from: DragonFlyBSD
|
| 1.24 |
| 06-Dec-2019 |
tkusumi | dm: Don't ignore dm_target_alloc() argument
dm_target_alloc() is supposed to be copying the name argument to its ->name.
taken-from: DragonFlyBSD
|
| 1.23 |
| 05-Dec-2019 |
tkusumi | dm: Make dm core set config to NULL after destroy
Just let dm core do this instead of having a comment expecting each
target to do the right thing.
taken-from: DragonFlyBSD
|
| 1.22 |
| 03-Dec-2019 |
tkusumi | dm: Include <sys/vnode.h> in dm.h
dm.h already depends on vnode, so have dm.h include <sys/vnode.h>
instead of other .c files.
taken-from: DragonFlyBSD
|
| 1.21 |
| 01-Dec-2019 |
tkusumi | dm: Remove unused dm_dev::dev_type
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.
|
| 1.20 |
| 15-Oct-2019 |
chs | convert more KM_NOSLEEP to KM_SLEEP and remove code to handle failures.
|
| 1.19 |
| 05-Jan-2018 |
christos | branches: 1.19.4;
PR/52900: Tomohiro Kusumi: Fix kernel panic when target's ->init() failed
Reliably unbusy the target in the *all* the destroy routines, so ioctl
does not need to do it.
|
| 1.18 |
| 04-Jun-2017 |
mbalmer | more dependiences -> dependencies
|
| 1.17 |
| 18-Aug-2014 |
agc | branches: 1.17.2;
Avoid a memory leak - from maxv
|
| 1.16 |
| 14-Jun-2014 |
hannken | branches: 1.16.2;
Change dk_lookup() to return an anonymous vnode not associated with
any file system. Change all consumers of dk_lookup() to get the
device from "v_rdev" instead of VOP_GETATTR() as specfs does not
support VOP_GETATTR(). Devices obtained with dk_lookup() will no
longer disappear on forced unmounts.
Fix for PR kern/48849 (root mirror raid fails on shutdown)
Welcome to 6.99.44
|
| 1.15 |
| 14-Oct-2011 |
hannken | branches: 1.15.12; 1.15.26;
Change the vnode locking protocol of VOP_GETATTR() to request at least
a shared lock. Make all calls outside of file systems respect it.
The calls from file systems need review.
No objections from tech-kern.
|
| 1.14 |
| 23-Dec-2010 |
mlelstv | make dm aware of physical sector sizes.
For aggregates of multiple disks we use the largest sector size from
all disks. For standard power-of-2 sizes this is the same as the least
common multiple. We still require proper alignment of the targets in
the mapping table.
ok by haad@
|
| 1.13 |
| 18-May-2010 |
haad | Add support for DIOCCACHESYNC ioctl for dm devices. Add new sync function
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.
|
| 1.12 |
| 04-Jan-2010 |
haad | branches: 1.12.2; 1.12.4;
Indent files remove unnecessary blank lines, white spaces and KNFize code.
|
| 1.11 |
| 01-Dec-2009 |
haad | Revert my commit which have added knowledge about dm targets to libdevmapper,
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@
|
| 1.10 |
| 20-Jun-2009 |
cegger | buidfix: change dm_target_snapshot_orig_init() to match prototype.
|
| 1.9 |
| 05-Jun-2009 |
haad | Parse dm param string in libdevmapper and not in a dm target init function.
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.
|
| 1.8 |
| 19-Feb-2009 |
haad | branches: 1.8.2;
Add support for autoloading of device-mapper targets modules. Add
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).
|
| 1.7 |
| 14-Jan-2009 |
haad | branches: 1.7.2; 1.7.4; 1.7.6;
Add dm module as dependency and remove module_hold/module_rele calls.
|
| 1.6 |
| 02-Jan-2009 |
haad | Properly register dm_target_* modules with module framework.
|
| 1.5 |
| 02-Jan-2009 |
haad | Add stripe target functions stubs. Stripe target must be present in dm driver
because without it lvm2tools will not create LVsi and eventualy panic system.
Problem reported by agc@.
|
| 1.4 |
| 21-Dec-2008 |
haad | Add support for loading dm targets as separate modules. All targets except
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.
|
| 1.3 |
| 19-Dec-2008 |
haad | Add infrastructure needed to load device-mapper targets as modules.
Targets wasn't converted yet and at least snapshot target will be converted
in a near future.
|
| 1.2 |
| 19-Dec-2008 |
haad | Merge the haad-dm branch to -current. This branch adds LVM functionality to
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@.
|
| 1.1 |
| 19-Jul-2008 |
haad | branches: 1.1.2;
Add dmgetdefaultdisklabel to get virtual disklabel for Logical Volume device. Add snapshot targets (snapshot, snapshot-origin), add dm_type to dm_dev structure to identify type of device. e.g. we can have mirrored disk device with snapshot on them and spare disk on them. When driver want to work with snapshot devices, it looks to upcalls list and finds all DM_SNAPSHOT devices.
|
| 1.1.2.13 |
| 05-Nov-2008 |
haad | Fix copyright in TNF licenses.
|
| 1.1.2.12 |
| 02-Nov-2008 |
haad | Use typedef in all structures in dm driver and use them in source code.
No functional change expected.
|
| 1.1.2.11 |
| 16-Oct-2008 |
haad | Rewrite locking in dm driver for last time. Replace rwlock with mutex/cv.
Move table lists to separate structure called table_head and access them
through dm_table interface. Thx go@, rmind@ and Dusan Bernat for help and
suggestions.
|
| 1.1.2.10 |
| 22-Sep-2008 |
haad | Fix bug where I tried to prop_object_release null object which caused weird
atuvm panic. Change init functions to failed when they receive params string
== NULL when they need some data.
|
| 1.1.2.9 |
| 11-Sep-2008 |
haad | Add new dm_target_*_deps function which will get all dependiences from
selected target. It is used to get device dependencies during
dm_table_deps_ioctl. Remove dm_dev::pdevs list which was really hard to
manage and wasn't use for anything usefull.
|
| 1.1.2.8 |
| 08-Sep-2008 |
haad | Add new version of snapshot code for nowonlyinitial configuration of
snapshots (parsing parameters strings and opening devices was added).
Fixonebug in dm_pdev where was one SLIST_ENTRY used to for global
pdev list and for per device pdev list. This bug was hidden for a
long time because I haven't used devices with more than one pdev.
|
| 1.1.2.7 |
| 03-Sep-2008 |
haad | Remove unneeded includes.
|
| 1.1.2.6 |
| 20-Aug-2008 |
haad | Add initial portion of snapshot code. Divide snapshot code into 2 parts
snapshot-origin and snapshot
First target is used to inform all snapshots about writes to master device.
Snapshot targets implements exception store for changed blocks.
This is how linux does snapshots on lvm2 devices if we want to use lvm2tools,
for snapshots I have to keep this as much compatible as possible to linux.
Change atoi from static to public function now it can be used with other
targets, too.
|
| 1.1.2.5 |
| 19-Aug-2008 |
haad | Add $NetBSD$ tag to all dm driver sources.
|
| 1.1.2.4 |
| 02-Aug-2008 |
haad | After dm_target_*_destroy set table_en->target_config to NULL.
|
| 1.1.2.3 |
| 28-Jul-2008 |
haad | Add status function to targets. This function is called from dm_table_status_ioctl,
when DM_STATUS_TABLE_FLAG is specified and it's purpose is construct params string.
Which can be sent back to libdevmapper.
Add adding removing of the DM_SUSPENDED_FLAG flag in dm_dev_suspend/resume ioctls.
|
| 1.1.2.2 |
| 22-Jul-2008 |
haad | Change parsing of parameter string. Remove knowledge about pramaer string
from dm_table_load_ioctl and move it to target_init routines. Parameter
string is targets specific and therefore only target routine know how to
parse it correctly. Remove unneeded parameter from dm_target_*_init(argc)
and change dm target routines accordingly.
Simplify dm_table_load_ioctl and move pdev inserting code to target init
funstions.
|
| 1.1.2.1 |
| 19-Jul-2008 |
haad | *** empty log message ***
|
| 1.7.6.2 |
| 23-Jul-2009 |
jym | Sync with HEAD.
|
| 1.7.6.1 |
| 13-May-2009 |
jym | Sync with HEAD.
Commit is split, to avoid a "too many arguments" protocol error.
|
| 1.7.4.3 |
| 03-Mar-2009 |
skrll | Sync with HEAD.
|
| 1.7.4.2 |
| 19-Jan-2009 |
skrll | Sync with HEAD.
|
| 1.7.4.1 |
| 14-Jan-2009 |
skrll | file dm_target_snapshot.c was added on branch nick-hppapmap on 2009-01-19 13:17:53 +0000
|
| 1.7.2.2 |
| 17-Jan-2009 |
mjf | Sync with HEAD.
|
| 1.7.2.1 |
| 14-Jan-2009 |
mjf | file dm_target_snapshot.c was added on branch mjf-devfs2 on 2009-01-17 13:28:53 +0000
|
| 1.8.2.6 |
| 11-Aug-2010 |
yamt | sync with head.
|
| 1.8.2.5 |
| 11-Mar-2010 |
yamt | sync with head
|
| 1.8.2.4 |
| 18-Jul-2009 |
yamt | sync with head.
|
| 1.8.2.3 |
| 20-Jun-2009 |
yamt | sync with head
|
| 1.8.2.2 |
| 04-May-2009 |
yamt | sync with head.
|
| 1.8.2.1 |
| 19-Feb-2009 |
yamt | file dm_target_snapshot.c was added on branch yamt-nfs-mp on 2009-05-04 08:12:36 +0000
|
| 1.12.4.2 |
| 05-Mar-2011 |
rmind | sync with head
|
| 1.12.4.1 |
| 30-May-2010 |
rmind | sync with head
|
| 1.12.2.1 |
| 17-Aug-2010 |
uebayasi | Sync with HEAD.
|
| 1.15.26.1 |
| 10-Aug-2014 |
tls | Rebase.
|
| 1.15.12.2 |
| 03-Dec-2017 |
jdolecek | update from HEAD
|
| 1.15.12.1 |
| 20-Aug-2014 |
tls | Rebase to HEAD as of a few days ago.
|
| 1.16.2.1 |
| 20-Oct-2014 |
martin | Pullup the following revisions, requested by maxv in ticket #148:
sys/compat/svr4/svr4_stat.c 1.70
sys/dev/dm/dm_target_snapshot.c 1.17
sys/dev/if_ndis/if_ndis_pci.c 1.20
sys/fs/smbfs/smbfs_smb.c 1.45
sys/ufs/ext2fs/ext2fs_readwrite.c 1.65
Various fixes: two memory leaks, a typo, a dead compiler condition and
unused macros, respectively in if_ndis and dm, smbfs, svr4 and ext2fs.
|
| 1.17.2.1 |
| 28-Aug-2017 |
skrll | Sync with HEAD
|
| 1.19.4.2 |
| 13-Apr-2020 |
martin | Mostly merge changes from HEAD upto 20200411
|
| 1.19.4.1 |
| 08-Apr-2020 |
martin | Merge changes from current as of 20200406
|
| 1.37.2.1 |
| 25-Jan-2020 |
ad | Sync with head.
|
