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663 Commits

Author SHA1 Message Date
Søren Schmidt
bbf15239ed Dont try to finish devstat's if the disk pointer is NULL, this can happen 
when a disk has been destroyed but still has outstanding bio's.

Reviewed by:	phk
 2004-05-11 13:17:40 +00:00
Pawel Jakub Dawidek
053271038e Close some small wakeup<->msleep races. 2004-05-05 12:30:41 +00:00
Pawel Jakub Dawidek
c2496c87c1 Fix compilation on 64-bit architectures. 
Noticed by:	Tinderbox
 2004-05-04 07:45:39 +00:00
Pawel Jakub Dawidek
b62093b274 Turn off debugging by default. 2004-05-03 21:11:54 +00:00
Pawel Jakub Dawidek
37c9eaae29 Prefer signed type over unsigned to be able to assert negative 
reference count.
 2004-05-03 21:02:02 +00:00
Pawel Jakub Dawidek
4d1e1bf3f5 - Hold g_gate_list_mtx lock while generating/checking unit number. 
Found by:	mtx_assert() g_gate.c:273
- Set command before returning to userland with ENOMEM error value.
	Found by:	assert() ggatel.c:108
 2004-05-03 18:06:24 +00:00
Pawel Jakub Dawidek
0d785336d1 Make it compile on 64-bit architectures. 
The biggest issue was that 16-bit atomic operations aren't supported
on all architectures.
 2004-05-02 17:57:49 +00:00
Pawel Jakub Dawidek
fe27e77251 Kernel bits of GEOM Gate. 2004-04-30 16:08:12 +00:00
Marcel Moolenaar
1b19d4ae61 Allow disks with a GPT to be used on big-endian machines. The GPT is 
little-endian by definition and needs byte-swap operations for any
multi-byte field. While here fix indentation.
 2004-04-30 05:05:39 +00:00
Pawel Jakub Dawidek
f1f163e9cb - Don't check if 'gp' is non-NULL, it always is and GEOM wants to 
dump geom configuration when 'pp' and 'cp' are NULL.
- Use tabs instead of spaces.
 2004-04-20 17:07:55 +00:00
Pawel Jakub Dawidek
46aeebec57 Calculate bio_completed properly or die! 
Approved by:	phk
 2004-04-04 20:37:28 +00:00
Peter Grehan
ae33b79b67 Move the name attribute to the end of the conftxt line to simplify 
libdisk parsing (the name may be empty, or contain spaces).

Submitted by:  Suleiman Souhlal <refugee@segfaulted.com>
 2004-04-01 01:33:37 +00:00
Pawel Jakub Dawidek
950124e354 Move "is consumer attached?" check before G_VALID_PROVIDER() check, 
because if consumer is not attached, its provider never will be valid,
so we never reach this check.

Approved by:	phk
 2004-03-18 07:17:10 +00:00
Poul-Henning Kamp
e26bafdc25 Be more insistent on destroying geoms at unload time. Still not perfect, 
but it will do (better) for now.

KASSERT that to have providers a class must have an access method.

Tag the new_provider event with the geom as well.
 2004-03-11 08:16:23 +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
Pawel Jakub Dawidek
48fbd94b4e - Don't take sectorsize from first disk. Calculate it by finding 
least common multiple of all disks sector sizes.
  This will allow to safely concatenate disks with different sector sizes.
- Mark unused function arguments.
- Other minor cleanups.
 2004-03-09 11:18:53 +00:00
Pawel Jakub Dawidek
810914da53 Print a space character between string given as a macro argument and 
bio description.
 2004-03-09 11:00:24 +00:00
Poul-Henning Kamp
b07ef6c2db Don't panic on providers already withered when we wither a geom. 2004-03-07 17:33:15 +00:00
John Baldwin
6074439965 kthread_exit() no longer requires Giant, so don't force callers to acquire 
Giant just to call kthread_exit().

Requested by:	many
 2004-03-05 22:42:17 +00:00
Pawel Jakub Dawidek
32d7144dbc Correct year in copyrights. 2004-03-04 10:22:42 +00:00
Pawel Jakub Dawidek
a88ae49f98 - Remove d_valid field, we can use d_consumer field to check if disk 
is valid.
- Use SYSCTL_DECL() instead of using own, ugly extern.
 2004-03-03 22:29:24 +00:00
Pawel Jakub Dawidek
db33b1c4d0 Removed unused fields. 2004-03-01 17:33:11 +00:00
Pawel Jakub Dawidek
03816084de We don't need d_length field. 2004-03-01 17:32:48 +00:00
Pawel Jakub Dawidek
0e2ff2832c Even if we're sure that we can't be orphaned here, we have to define 
orphan field - we're enforcing it in GEOM. This will reach KASSERT
in INVARIANTS case.

Add missing space.

Approved by:	scottl (mentor)
 2004-02-27 15:34:21 +00:00
Pawel Jakub Dawidek
0787ce83b2 Remove unused field. 
Approved by:	scottl (mentor)
 2004-02-27 15:32:49 +00:00
Poul-Henning Kamp
dc08ffec87 Device megapatch 4/6: 
Introduce d_version field in struct cdevsw, this must always be
initialized to D_VERSION.

Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing
four D_NOGIANT flags and adding 145 D_NEEDGIANT flags.
 2004-02-21 21:10:55 +00:00
Pawel Jakub Dawidek
19d16e2fee Introduce CONCAT GEOM class for disk concatenation. 
It allows manual and automatic (based on on-disk metadata) concatenation.

Reviewed by:	phk, scottl
Approved by:	scottl (mentor)
 2004-02-19 15:19:49 +00:00
Poul-Henning Kamp
0b7ed341e1 Change the disk(9) API in order to make device removal more robust. 
Previously the "struct disk" were owned by the device driver and this
gave us problems when the device disappared and the users of that device
were not immediately disappearing.

Now the struct disk is allocate with a new call, disk_alloc() and owned
by geom_disk and just abandonned by the device driver when disk_create()
is called.

Unfortunately, this results in a ton of "s/\./->/" changes to device
drivers.

Since I'm doing the sweep anyway, a couple of other API improvements
have been carried out at the same time:

The Giant awareness flag has been flipped from DISKFLAG_NOGIANT to
DISKFLAG_NEEDSGIANT

A version number have been added to disk_create() so that we can detect,
report and ignore binary drivers with old ABI in the future.

Manual page update to follow shortly.
 2004-02-18 21:36:53 +00:00
Poul-Henning Kamp
281591449a Do not check error code from closing ->access() calls, we know they succeed. 2004-02-14 17:59:44 +00:00
Poul-Henning Kamp
bfc37a5112 Add a KASSERT which checks that a class never fails a closing ->access() 
call.
 2004-02-14 17:58:57 +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
18e88d825c Now we have g_topology_assert_not(), so use it to detect deadlocks. 
Approved by:	phk, scottl (mentor)
 2004-02-10 15:55:17 +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
99cf2f941c don't call sbuf_clear() right after sbuf_new(), it is not necessary. 2004-02-10 10:54:19 +00:00
Poul-Henning Kamp
df3df337b8 Polish the work/state engine in preparation for HW-crypto support. 2004-02-08 10:19:18 +00:00
Poul-Henning Kamp
d091e630f1 Add a missing error case return. 
Problem reported by:	Flemming Jacobsen <fj@batmule.dk>
 2004-02-08 09:39:02 +00:00
Poul-Henning Kamp
3aa5a3ad90 We don't need to hold Giant to create the worker kthread. 2004-02-07 23:01:17 +00:00
Pawel Jakub Dawidek
12047230cd Allow decreasing access count even if there is no disk anymore. 
This will allow closing disks that were removed while opened.

Approved by:	phk, scottl (mentor)
 2004-02-06 23:10:49 +00:00
Lukas Ertl
5b2f81ec4b Fix memory leak. 
PR:            kern/58634
Submitted by:  le
Approved by:   phk
 2004-02-06 22:51:04 +00:00
Poul-Henning Kamp
0ed4f6a180 Allow a GEOM class to unload if it has no geoms or a method function to 
get rid of them.

Prodded by:	pjd
 2004-02-02 19:49:41 +00:00
Pawel Jakub Dawidek
cff2ddaeb2 - Use proper names in KASSERTs. 
- Typos.

Approved by:	phk, scottl (mentor)
 2004-02-02 17:50:09 +00:00
Poul-Henning Kamp
abc2e0fd56 Check error return from g_clone_bio(). (netchild@) 
Rearrange code to avoid duplication (phk@)

Submitted by:	netchild@
 2004-02-02 13:36:06 +00:00
Poul-Henning Kamp
793ffa8e55 Don't mingle malloc/g_event flags. 
Spotted by:	pjd@
 2004-02-02 10:58:07 +00:00
Poul-Henning Kamp
5fcf4e4398 Bring back the geom_bioqueues, they _are_ a good idea. 
ATA will uses these RSN.
 2004-01-28 08:39:18 +00:00
Poul-Henning Kamp
57ab2e0468 Make sure to keep track of canceled events. 
Submitted by:	Pawel Jakub Dawidek <nick@garage.freebsd.pl>
 2004-01-23 21:09:38 +00:00
Poul-Henning Kamp
799426f877 Add KASSERTS. 
Submitted by:	Pawel Jakub Dawidek <nick@garage.freebsd.pl>
 2004-01-23 21:02:49 +00:00
Poul-Henning Kamp
f5b3481451 Plug an insignificant memoryleak. 
Submitted by:	Pawel Jakub Dawidek <nick@garage.freebsd.pl>
 2004-01-23 20:40:25 +00:00
Poul-Henning Kamp
752e0f0196 Add missing newline in printf. 
Submitted by:	Pawel Jakub Dawidek <nick@garage.freebsd.pl>
 2004-01-23 20:36:21 +00:00