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Author SHA1 Message Date
Steven Whitehouse
5c8de1dbd5 o I'm afraid that wu and wl etc. is just too confusing.... I've changed it 
to up_write() and down_write() etc so that you can see what kind of a lock
   it is (otherwise it could be anything.. semaphore, spinlock, spinlock_bh,
   spinlock_irq, br_lock, etc.)
 2001-09-13 11:29:38 +00:00
Steven Whitehouse
2565c99f8b o Use kmem_cache_destroy() to remove slab cache. 2001-09-13 11:07:08 +00:00
Patrick Caulfield
758af97c3b Set DEFAULT_ALIGNMENT to 8 for Alpha. 
If you think this is wasteful on other arches then stick some ifdefs in.
 2001-09-13 09:03:42 +00:00
Alasdair Kergon
1476903a5e Add dm-parse 2001-09-12 13:50:26 +00:00
Joe Thornber
3f03a60736 o first sattab at custom fs. Very rough ATM. 
Mount the dm-fs filesystem on /device-mapper (will fix later).  mkdir
to create a device, inside that directory every file you create is a table
file.  If there are errors <table>.err will appear automagically.  Mv a table
file to ACTIVE to activeate the device.  I'm not happy with mv being the
binding command, symlink would be better.
 2001-09-07 11:34:46 +00:00
Joe Thornber
8784319622 o more tidy ups from Clausen. 2001-09-05 07:48:11 +00:00
Joe Thornber
e69ce84e34 o Added two new functions get_child [Andrew Clausen] and get_node. I think 
this makes 'high()' a bit more understandable.
 2001-09-04 10:17:28 +00:00
Joe Thornber
a612e52245 o added new constant CHILD_PER_NODE to make things clearer 2001-09-03 08:36:41 +00:00
Joe Thornber
5cdd74f2e9 o Various tidy ups [Andrew Clausen] 2001-09-02 10:49:20 +00:00
Joe Thornber
f058895e26 o added global dm_table_lookup_device(path) 
o changed linear target to : <device_path> <start>
 2001-08-31 18:26:27 +00:00
Joe Thornber
a46d94071b o added reference counting to the destination devices, make sure that the 
destructor for any targets you write call dm_table_remove_device.
 2001-08-31 16:36:56 +00:00
Joe Thornber
0f29dc2f2d o split struct mapped_device into mapped_device and dm_table 
o seperated loading of a table from binding a table to the device

These should allow multiple tables to be managed by dm-fs
 2001-08-31 15:13:33 +00:00
Joe Thornber
4183d3fe6c o tidy ups 2001-08-31 12:49:31 +00:00
Joe Thornber
78512ae004 o allocate io_hooks from a slab 2001-08-31 10:25:32 +00:00
Joe Thornber
7567dd82cb o stray return -ENXIO in reuqest [Jens Axboe] 2001-08-31 09:43:35 +00:00
Joe Thornber
61059614b7 o rebuilt 00_latest 2001-08-31 09:14:55 +00:00
Joe Thornber
0399f4cd61 o split uml part out 2001-08-29 14:23:40 +00:00
Joe Thornber
5410a899ef o various little tidy ups 2001-08-29 13:58:48 +00:00
Joe Thornber
a18deda24b o change format of table line to <start> <len> <target> ... 2001-08-28 14:56:47 +00:00
AJ Lewis
2e95662387 o Enable building dm modules (called dm-mod) 
o split the patches into config and makefile specific.
 2001-08-28 14:11:55 +00:00
Joe Thornber
ff8cfdb092 o more deferred io stuff 2001-08-28 14:05:22 +00:00
Joe Thornber
bfba809c79 o added proper suspend/resume support, it now waits for all 'in flight' io's 
to complete.

  
  moved comment to dm.h
 2001-08-28 13:04:44 +00:00
Joe Thornber
0d3e8e743a o ACtual source code patch 2001-08-24 09:50:16 +00:00
Joe Thornber
4ca4476320 o a couple of patches we'll need for deviec-mapper 2001-08-24 09:39:32 +00:00
Joe Thornber
d43ba2a775 o you can now load maps repeatedly without hanging 
o tested multiple target map

Driver is now useable
 2001-08-23 17:10:05 +00:00
Joe Thornber
95d3ba14eb o dm_add_target was returning 0 an error when it shouldn't 
o reference count was being checked badly
 2001-08-23 16:45:43 +00:00
Joe Thornber
3cf3ab579e o map loads ok now 
o request function appears to work, but something is segfaulting when i
  mke2fs
 2001-08-23 12:35:02 +00:00
Alasdair Kergon
0bdf99c171 Tweak permissions - currently root-only. (no support for non-root ownership 
in procfs except for PIDs)
 2001-08-22 20:10:06 +00:00
Joe Thornber
1a6f055682 o chagngesd alloc to return 0 on success 2001-08-22 15:59:56 +00:00
Joe Thornber
016cf45775 o fs_add and fs_remove actually create/remove the device now 2001-08-22 15:33:08 +00:00
Joe Thornber
4a6a800fd8 o added brackets to make t->name = (char *) (t + 1) more explicit 2001-08-22 15:12:31 +00:00
Alasdair Kergon
4dd99b7623 Return 0 on success now. 2001-08-22 15:02:55 +00:00
Joe Thornber
71d325549f o wu macro was doing a read unlock 
o added dm_fs_add/remveove
 2001-08-22 15:01:09 +00:00
Joe Thornber
75d6c8c9f6 o _tok_cpy was broken 2001-08-22 14:30:30 +00:00
Joe Thornber
a548e9cc40 o fix get_word 
o capy name in when registering targets

o change _line_splitter so it expects the process functions to return zero
  on success
 2001-08-22 14:13:26 +00:00
Joe Thornber
9d4aaf49c1 o _get_workd was always returning the end on iput 2001-08-22 13:52:26 +00:00
Alasdair Kergon
e753457e7d o Initialisation tweaks. 
o Use different major number so it can co-exist with LVM 1.
 2001-08-22 13:46:58 +00:00
Joe Thornber
8f8fbdc399 o set permissions on /proc/device-mapper/control to -w-w-w 2001-08-22 13:45:28 +00:00
Joe Thornber
5c45d98645 o call dm_init_fs 2001-08-22 13:41:00 +00:00
AJ Lewis
a53d451f30 o Ok, this seems to be a much better method for caching valid 
devices based on /proc/devices
   + The dev_mgr structure now has a 256 element char array that is
     initially all 0s
   + When a match is found, the array element corresponding to the major
     number of the match is set to a non-zero value
   + to check for a match, all one has to do is check that the array
     element at the major number in question is non-zero.
 o I'm wondering if we should do this with bitwise operators instead?  Does
   anyone expect the major numbers to grow larger than 8-bits?
 2001-08-21 20:40:37 +00:00
AJ Lewis
83b2c0d30a o Quick and dirty *UGLY* hack of a /proc/devices cache using a linked list 
o I don't like it, but I'm committing it so I can go back and laugh at
   myself later
 o I have a (hopefully) better idea that i'll try to commit yet today.
 2001-08-21 19:51:04 +00:00
AJ Lewis
7af02225cc o Quick and dirty hack to get lvm_check_dev code into the dev-manager 
o I'm working on caching the /proc/devices entries now, and should have
   that in by the end of today or early tomorrow.
 o There will be much cleanup involved with that...
 2001-08-21 18:20:14 +00:00
Joe Thornber
c0068bdd4f o quick hack to get the proc entry registering 2001-08-21 15:31:50 +00:00
Joe Thornber
e16c478a25 o dm-fs compiles, I've forgotten to register the device in /proc though 2001-08-21 15:24:02 +00:00
AJ Lewis
bb6ddc2de7 o Added a basic makefile to build liblvm.a again 
o Modified source files so that this works
 2001-08-21 15:23:45 +00:00
AJ Lewis
a88c46c2d8 o Brought hash table code over from experimental 2001-08-21 15:22:59 +00:00
Joe Thornber
f924ff0059 o wasn't including dm-fs.o in the build 2001-08-21 14:52:54 +00:00
Joe Thornber
fbc4a8894f o dm-target compiles 2001-08-21 14:51:41 +00:00
Joe Thornber
8b0affe220 o dm-table compiles 2001-08-21 14:47:42 +00:00
AJ Lewis
1993c0acc2 o Added _basic_ config file support to the device manager 2001-08-21 14:44:18 +00:00