Commit Graph

101 Commits

Author SHA1 Message Date
marcel
31a163ef06 Add g_retaste(), which given a class will present all non-open providers
to it for tasting. This is useful when the class, through means outside
the scope of GEOM, can claim providers previously unclaimed.

The g_retaste() function posts an event which is handled by the
g_retaste_event().

Event suggested by: phk
2008-03-23 01:23:35 +00:00
pjd
835266e088 Implement g_delete_data() similar to g_read_data() and g_write_data().
OK'ed by:	phk
2007-05-05 16:35:22 +00:00
pjd
ddfa2416f5 - Implement helper g_handleattr_str() function for string attributes
handling.
- Extend g_handleattr() to treat attribute as string when len=0.

OK'ed by:	phk
2007-05-05 16:33:44 +00:00
pjd
d5cc909451 Add a new I/O request - BIO_FLUSH, which basically tells providers below to
flush their caches. For now will mostly be used by disks to flush their
write cache.

Sponsored by:	home.pl
2006-10-31 21:11:21 +00:00
pjd
f5e129df20 Add __printflike() to gctl_error().
Approved by:	phk
MFC after:	1 week
2006-09-16 10:39:07 +00:00
pjd
556424a17a Add 'show geom [addr]' ddb(4) command, which prints entire GEOM topology if
no additional argument is given or details about the given GEOM object
(class, geom, provider or consumer).

Approved by:	phk
2006-09-15 16:36:45 +00:00
pjd
c146aa7e54 Only check if we're freeing a valid object if we hold the topology lock.
This prevents panic under heavy load with DIAGNOSTIC compiled in.
2006-07-12 15:44:00 +00:00
pjd
280370a7da Add g_duplicate_bio() function which does the same thing what g_clone_bio()
is doing, but g_duplicate_bio() allocates new bio with M_WAITOK flag.
2006-06-05 21:13:22 +00:00
marcel
c168f9530e Add g_wither_provider() to abstract the details of destroying a
particular provider. Use this function where g_orphan_provider()
is being called so that the flags are updated correctly and
g_orphan_provider() is called only when allowed.
2006-04-10 03:55:13 +00:00
marcel
a5bd277da0 Change gctl_set_param() to return an error instead of setting an
error on the request.  Add a wrapper, gctl_set_param_err(), that
sets the error on the request from the error returned by
gctl_set_param() and update current callers of gctl_set_param()
to call gctl_set_param_err() instead.
This makes gctl_set_param() much more usable in situations where
the caller knows better what to do with certain (apparent) error
conditions and setting an error on the request is not one of the
things that need to be done.
2006-04-07 16:19:48 +00:00
phk
7192488ee7 Typo. 2005-09-03 11:03:10 +00:00
pjd
27d828652f Implement g_topology_try_lock().
No objection from:	phk
2004-12-21 18:32:46 +00:00
phk
35b3c9fdfb Pass the file->flags down to geom ioctl handlers.
Reject certain ioctls if write permission is not indicated.

Bump geom API version.

Reported by:	Ruben de Groot <mail25@bzerk.org>
2004-12-12 10:09:05 +00:00
pjd
412bff1f39 Introduce g_waitidlelock() function which is simlar to g_waitidle(),
but should be called with the topology lock held and returns with the
topology lock held and empty event queue.

Approved by:	phk (sometime ago)
2004-11-09 23:20:50 +00:00
phk
269b7a298a Add g_wither_geom_close() function. 2004-10-29 09:19:03 +00:00
phk
00ae1b0f02 Move the prototype for g_waitidle() to a more visible place. 2004-10-23 20:22:02 +00:00
phk
4759b478a2 Introduce g_alloc_bio() as a waiting variant of g_new_bio().
Use in places where we can sleep and where we previously failed to check
for a NULL pointer.

MT5 candidate.
2004-08-27 14:43:11 +00:00
phk
e7ff003728 Give classes a version number and refuse to touch classes which are not
understood.  This makes room for additional binary compatibility in the
future.

Put fields in the class for the geom's methods and initialize the methods
of a new geom from these fields.  This saves some code in all classes.
2004-08-08 06:46:27 +00:00
phk
d0b5788749 Kill g_access_rel() already now before we send it down 5-stable 2004-06-21 20:31:49 +00:00
phk
dfd1f7fd50 Do the dreaded s/dev_t/struct cdev */
Bump __FreeBSD_version accordingly.
2004-06-16 09:47:26 +00:00
phk
9a7074f4cb Rearrange some of the GEOM debugging tools to be more structured.
Retire g_sanity() and corresponding debugflag (0x8)

  Retire g_{stall,release}_events().

  Under #ifdef DIAGNOSTIC:

    Make g_valid_obj() an official function and have it return an an
    non-zero integer which indicates the kind of object when found.

    Implement G_VALID_{CLASS,GEOM,CONSUMER,PROVIDER}() macros based
    on g_valid_obj().

    Sprinkle calls to these macros liberally over the infrastructure.

    Always check that we do not free a live object.
2004-03-10 08:49:08 +00:00
phk
124977fbb6 Remove the absolute count g_access_abs() function since experience has
shown that it is not useful.

Rename the relative count g_access_rel() function to g_access(), only
the name has changed.

Change all g_access_rel() calls in our CVS tree to call g_access() instead.

Add an #ifndef BURN_BRIDGES #define of g_access_rel() for source
code compatibility.
2004-02-12 22:42:11 +00:00
phk
87cf92606a Give both consumers and providers a {void *private, u_int index} which
the implementing class can use to hang internal info from.
2004-02-12 20:32:11 +00:00
pjd
c681583fbc Added g_print_bio() function to print informations about given bio.
Approved by:	phk, scottl (mentor)
2004-02-11 18:21:32 +00:00
pjd
e8bed31902 Added macro which will be used to assert, that the topology lock is not held.
Approved by:	phk, scottl (mentor)
2004-02-10 15:53:28 +00:00
phk
888f0e51c6 KASSERT against multiple orphanings of providers. 2003-12-07 10:04:43 +00:00
scottl
2b68e67c6d Re-arrange and consolidate some random debugging stuff 2003-12-07 05:04:49 +00:00
phk
dc1586f843 Introduce a per provider wither flag 2003-10-06 09:05:44 +00:00
phk
38290a3baa Simplify the ioctl handling in GEOM.
This replaces the current ioctl processing with a direct call path
from geom_dev() where the ioctl arrives (from SPECFS) to any directly
connected GEOM class.

The inverse of the above is no longer supported.  This is the
situation were you have one or more intervening GEOM classes, for
instance a BSDlabel on top of a MBR or PC98.  If you want to issue
MBR or PC98 specific ioctls, you will need to issue them on a MBR
or PC98 providers.

This paves the way for inviting CD's, FD's and other special cases
inside GEOM.
2003-09-01 20:45:32 +00:00
phk
a802e42c5a Add the new g_dev_getprovider() function, the swap_pager needs it now.
Spotted by:	mr
2003-08-30 18:33:55 +00:00
phk
8d105bca1c Improve the root-dev prompt facility for printing devices which could
possibly be a root filesystem.
2003-06-07 15:46:53 +00:00
phk
dd1aaed417 Drop a memory-corruption debugging test-tool. 2003-06-07 10:55:48 +00:00
phk
e23e34a198 Introduce g_provider_by_name() function, and use it. 2003-06-04 18:17:52 +00:00
phk
069191fcbf Simplify the GEOM OAM api: Drop the request type, and let everything
hinge on the "verb" parameter which the class gets to interpret as
it sees fit.

Move the entire request into the kernel and move changed parameters
back when done.
2003-06-01 13:47:51 +00:00
phk
5a2388f470 constify g_sanity() 2003-06-01 13:30:39 +00:00
phk
3325608f8f Introduce a init and fini member functions on a class.
Use ->init() and ->fini() to handle the mutex in geom_disk.c

Remove the g_add_class() function and replace it with a standardized
g_modevent() function.

This adds the basic infrastructure for loading/unloading GEOM classes
2003-05-31 18:13:07 +00:00
phk
e2298826ec Remove the G_CLASS_INITIALIZER, we do not need it anymore. 2003-05-31 16:59:27 +00:00
phk
f1297dcac6 Add gctl_set_param() function. 2003-05-04 19:24:34 +00:00
phk
098143e63b Rework the "withering" mechanism:
Introduce g_wither_geom() to do the work in one single place.
2003-05-02 06:15:27 +00:00
phk
c51ae09b82 Remove the now obsolete geomidorname hack. 2003-05-01 20:32:24 +00:00
phk
ffd04bfbdd Introduce a g_waitfor_event() function which posts an event and waits for
it to be run (or cancelled) and use this instead of home-rolled versions.
2003-04-23 21:28:27 +00:00
phk
3bbfe9f43b Rename g_call_me() to g_post_event(), and give it a flag
argument to determine if we can M_WAITOK in malloc.
2003-04-23 20:46:12 +00:00
phk
90684346d6 Make gctl_error() take printfline varargs. 2003-04-23 07:50:01 +00:00
phk
ee10d53986 Remove unused event pointers in object structures.
Remove KASSERTS which checked that they were unused.
2003-04-23 06:54:44 +00:00
phk
c5dae9372b Implement handling of CONFIG_GEOM OAM request. 2003-04-22 21:01:46 +00:00
phk
03b1ca36ba Time has run from the "run GEOM in userland" harness, and the new regression
test is built to test GEOM as running in the kernel.

This commit is basically "unifdef -D_KERNEL" to remove the mainly #include
related code to support the userland-harness.
2003-04-13 09:02:06 +00:00
phk
cbe207a30e Remove all references to BIO_SETATTR. We will not be using it. 2003-04-03 19:19:36 +00:00
phk
f14c63f8a8 Remove geom_enc.c, a superset of these functions are now available in
<sys/endian.h>
2003-04-03 11:40:06 +00:00
phk
39cbb43bab Add handling for cancelled events in the g_call_me() methods. 2003-04-02 21:10:04 +00:00
phk
cedf04c475 Change events to have an array of "void *" references, and give the
event posting functions varargs to fill these.

Attribute g_call_me() to appropriate g_geom's where necessary.

Add a flag argument to g_call_me() methods which will be used to signal
cancellation of events in the future.

This commit should be a no-op.
2003-04-02 20:41:18 +00:00