Commit Graph

110 Commits

Author SHA1 Message Date
Alexander Motin
90f2be2430 Implement relaxed comparision for hardcoded provider names to make it
ignore adX/adaY difference in both directions to simplify migration to
the CAM-based ATA or back.
2011-04-27 00:10:26 +00:00
Alexander Motin
c6d4ed3a32 MFgraid/head r218212, r218257:
Introduce new type of BIO_GETATTR -- GEOM::setstate, used to inform lower
GEOM about state of it's providers from the point of upper layers.
Make geom_disk use led(4) subsystem to illuminate states in such fashion:
FAILED - "1" (on), REBUILD - "f5" (slow blink), RESYNC - "f1" (fast blink),
ACTIVE - "0" (off).
LED name should be set for each disk via kern.geom.disk.%s.led sysctl.
Later disk API could be extended to allow disk driver to report this info
in custom way via it's own facilities.
2011-03-24 19:23:42 +00:00
Alexander Motin
06f4c96d39 MFgraid/head r217827:
Change BIO_GETATTR("GEOM::kerneldump") API to make set_dumper() called by
consumer (geom_dev) instead of provider (geom_disk). This allows any geom
insert it's code into the dump call chain, implementing more sophisticated
functionality then just disk partitioning.
2011-03-24 08:37:48 +00:00
Jaakko Heinonen
9061251f9a Fix deadlock between GEOM class unloading and withering. Withering can't
proceed while g_unload_class() blocks the event thread. Fix this by not
running g_unload_class() as a GEOM event and dropping the topology lock
when withering needs to proceed.

PR:		kern/139847
Silence on:	freebsd-geom
2010-05-05 18:53:24 +00:00
Edward Tomasz Napierala
fb231f3627 Make gjournal work with kernel compiled with "options DIAGNOSTIC".
Previously, it would panic immediately.

Reviewed by:	pjd
Approved by:	re (kib)
2009-06-30 14:34:06 +00:00
Luigi Rizzo
6231f75bcf As discussed in the devsummit, introduce two fields in the
struct bio to store classification information, and a hook
for classifier functions that can be called by g_io_request().

This code is from Fabio Checconi as part of his GSOC work.
2009-06-11 09:55:26 +00:00
Andrew Thompson
853a10a581 Revert r190676,190677
The geom and CAM changes for root_hold are the wrong solution for USB design
quirks.

Requested by:	scottl
2009-04-10 04:08:34 +00:00
Andrew Thompson
31da42bab2 Add interleaving root hold tokens from the CAM probe to disk_create and geom
provider tasting. This is needed for disk attachments that happen after threads
are running in the boot process.

Tested by:	rnoland
2009-04-03 19:49:33 +00:00
Marcel Moolenaar
709a626613 Constify val in g_handleattr() and str in g_handleattr_str().
This allows passing string constants to g_handleattr_str().
2009-02-01 01:50:09 +00:00
Marcel Moolenaar
8a8fcb0089 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
Pawel Jakub Dawidek
2b17fb9514 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
Pawel Jakub Dawidek
d19dbf4a23 - 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
Pawel Jakub Dawidek
c3618c657a 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
Pawel Jakub Dawidek
5e165262f1 Add __printflike() to gctl_error().
Approved by:	phk
MFC after:	1 week
2006-09-16 10:39:07 +00:00
Pawel Jakub Dawidek
679f8b7e7a 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
Pawel Jakub Dawidek
e8c85a50ae 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
Pawel Jakub Dawidek
4bec0ff1c4 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 Moolenaar
d99c155975 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 Moolenaar
41063f9380 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
Poul-Henning Kamp
ac4b76b7ff Typo. 2005-09-03 11:03:10 +00:00
Pawel Jakub Dawidek
54bab03f04 Implement g_topology_try_lock().
No objection from:	phk
2004-12-21 18:32:46 +00:00
Poul-Henning Kamp
2221dbebce 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
Pawel Jakub Dawidek
b8005b9b24 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
Poul-Henning Kamp
725419af56 Add g_wither_geom_close() function. 2004-10-29 09:19:03 +00:00
Poul-Henning Kamp
a11021f362 Move the prototype for g_waitidle() to a more visible place. 2004-10-23 20:22:02 +00:00
Poul-Henning Kamp
a2033c9615 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
Poul-Henning Kamp
dd66958e28 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
Poul-Henning Kamp
71c911b18c Kill g_access_rel() already now before we send it down 5-stable 2004-06-21 20:31:49 +00:00
Poul-Henning Kamp
89c9c53da0 Do the dreaded s/dev_t/struct cdev */
Bump __FreeBSD_version accordingly.
2004-06-16 09:47:26 +00:00
Poul-Henning Kamp
3d1d5bc3c3 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
Poul-Henning Kamp
d2bae332d6 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
Poul-Henning Kamp
f865123ec4 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
Pawel Jakub Dawidek
72e330954e Added g_print_bio() function to print informations about given bio.
Approved by:	phk, scottl (mentor)
2004-02-11 18:21:32 +00:00
Pawel Jakub Dawidek
692498b0cd 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
Poul-Henning Kamp
d0265773dc KASSERT against multiple orphanings of providers. 2003-12-07 10:04:43 +00:00
Scott Long
774114995e Re-arrange and consolidate some random debugging stuff 2003-12-07 05:04:49 +00:00
Poul-Henning Kamp
90916ef730 Introduce a per provider wither flag 2003-10-06 09:05:44 +00:00
Poul-Henning Kamp
497c334767 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
Poul-Henning Kamp
bff1e2999d Add the new g_dev_getprovider() function, the swap_pager needs it now.
Spotted by:	mr
2003-08-30 18:33:55 +00:00
Poul-Henning Kamp
84c080a85e Improve the root-dev prompt facility for printing devices which could
possibly be a root filesystem.
2003-06-07 15:46:53 +00:00
Poul-Henning Kamp
df2c3922e9 Drop a memory-corruption debugging test-tool. 2003-06-07 10:55:48 +00:00
Poul-Henning Kamp
d6c5e71627 Introduce g_provider_by_name() function, and use it. 2003-06-04 18:17:52 +00:00
Poul-Henning Kamp
83d771de78 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
Poul-Henning Kamp
a6c58fec6c constify g_sanity() 2003-06-01 13:30:39 +00:00
Poul-Henning Kamp
6c87f8d5ea 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
Poul-Henning Kamp
f075585f67 Remove the G_CLASS_INITIALIZER, we do not need it anymore. 2003-05-31 16:59:27 +00:00
Poul-Henning Kamp
1ee055e692 Add gctl_set_param() function. 2003-05-04 19:24:34 +00:00
Poul-Henning Kamp
d6227ae71f Rework the "withering" mechanism:
Introduce g_wither_geom() to do the work in one single place.
2003-05-02 06:15:27 +00:00
Poul-Henning Kamp
606402511a Remove the now obsolete geomidorname hack. 2003-05-01 20:32:24 +00:00
Poul-Henning Kamp
0a9c130c06 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