Commit Graph

103 Commits

Author SHA1 Message Date
Poul-Henning Kamp
7c89f162bc Add fdidx argument to vn_open() and vn_open_cred() and pass -1 throughout. 2003-07-27 17:04:56 +00:00
Poul-Henning Kamp
8198a1a472 Remove 256 unit limit, there is no evil minor number encoding to
deal with any more.

Spotted by:	"Darren Freestone" <df@cops.org>
2003-06-22 11:31:38 +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
17a1391990 The IO_NOWDRAIN and B_NOWDRAIN hacks are no longer needed to prevent
deadlocks with vnode backed md(4) devices because md now uses a
kthread to run the bio requests instead of doing it directly from
the bio down path.
2003-05-31 16:42:45 +00:00
Alan Cox
f820bc501e Use vm_object_deallocate(), not vm_pager_deallocate(), to destroy a
vm object.  (vm_pager_deallocate() does not, in fact, destroy a vm object.)

Approved by:	re (scottl)
Reviewed by:	phk
2003-05-16 07:28:27 +00:00
Poul-Henning Kamp
6b60a2cd57 Call g_wither_geom(), instead of just setting the flag. 2003-05-02 06:18:58 +00:00
Poul-Henning Kamp
4e8bfe1482 Add a couple of undocumented test options to MD(4) to aid in regression
testting of GEOM.
2003-04-09 11:59:29 +00:00
Poul-Henning Kamp
4eba52a2d2 Remove all references to BIO_SETATTR. We will not be using it. 2003-04-03 19:19:36 +00:00
Poul-Henning Kamp
891619a66d Use bioq_flush() to drain a bio queue with a specific error code.
Retain the mistake of not updating the devstat API for now.

Spell bioq_disksort() consistently with the remaining bioq_*().

#include <geom/geom_disk.h> where this is more appropriate.
2003-04-01 15:06:26 +00:00
Poul-Henning Kamp
51a5b7f1ba Don't include <sys/disk.h>. 2003-04-01 13:33:28 +00:00
Poul-Henning Kamp
67ffbc63f3 remove a blank line. 2003-03-29 22:13:32 +00:00
Poul-Henning Kamp
83e13864c3 Allocate the toplevel indir with M_WAITOK to avoid complicating things
needlessly.

Detected by:	rwatsons EvilMalloc(9)
2003-03-27 10:14:36 +00:00
Poul-Henning Kamp
5d445dcb4e Change g_class initialization to sparse format. 2003-03-24 19:46:26 +00:00
Poul-Henning Kamp
b4b138c27f Including <sys/stdint.h> is (almost?) universally only to be able to use
%j in printfs, so put a newsted include in <sys/systm.h> where the printf
prototype lives and save everybody else the trouble.
2003-03-18 08:45:25 +00:00
Poul-Henning Kamp
60794e0478 Centralize the devstat handling for all GEOM disk device drivers
in geom_disk.c.

As a side effect this makes a lot of #include <sys/devicestat.h>
lines not needed and some biofinish() calls can be reduced to
biodone() again.
2003-03-08 08:01:31 +00:00
Poul-Henning Kamp
ebe789d61c Add a "-S sectorsize" option to enable Kirk to find a bug :-) 2003-03-03 13:05:00 +00:00
Poul-Henning Kamp
7ac40f5f59 Gigacommit to improve device-driver source compatibility between
branches:

Initialize struct cdevsw using C99 sparse initializtion and remove
all initializations to default values.

This patch is automatically generated and has been tested by compiling
LINT with all the fields in struct cdevsw in reverse order on alpha,
sparc64 and i386.

Approved by:    re(scottl)
2003-03-03 12:15:54 +00:00
Warner Losh
a163d034fa Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
Poul-Henning Kamp
b3b3d1b7fe Mark our provider with G_PF_CANDELETE in the cases where this is actually
the case.
2003-02-11 12:35:44 +00:00
Poul-Henning Kamp
5777c5b989 NO_GEOM cleanup: unifdef 2003-01-30 13:12:31 +00:00
Poul-Henning Kamp
16bcbe8cf7 Implement MDIOCLIST which returns the unit numbers of configured md(4)
devices.

We use the md_pad[] array and if there are more units than its size the
last returned unit number will be -1, but the number of units returned
is correct.
2003-01-27 07:58:18 +00:00
Alfred Perlstein
44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
Poul-Henning Kamp
26d48b4044 OK Ok, so I didn't check the NO_GEOM case for the final version...
Stumbled on by:	bde
2003-01-13 20:19:04 +00:00
Poul-Henning Kamp
a4f8615810 Enable the new h0h0magic code which on GEOM kernels make the md(4)
driver a _real_ GEOM driver.
2003-01-13 17:31:46 +00:00
Poul-Henning Kamp
0f8500a5b3 Add a mutex around the per unit bioqueue.
Only grab giant in the per unit kthread for SWAP and VNODE backed devices.

Initialize the bioq before the kthread gets a chance to study it.

Don't lock Giant in mddone_swap, we shouldn't need it.
2003-01-13 08:50:23 +00:00
Poul-Henning Kamp
64bfc43b26 Remove the printf which announces the creation of malloc disks: it is
inconsistent when we do not do it for swap or vnode.

We still printf for preloaded disks because of the weak debugging
options people have in embedded/tiny environments where this is
usually used.
2003-01-13 08:01:09 +00:00
Poul-Henning Kamp
6f4f00f114 Add code to make md(4) a GEOM device driver instead of relying in
the disk mini-layer.

This is currently not enabled.
2003-01-12 21:16:49 +00:00
Poul-Henning Kamp
a522a15950 Shift things around a bit in preparation for future evilness. 2003-01-12 17:39:29 +00:00
Ian Dowse
e176446dc8 Move the check for the MD_SHUTDOWN flag to before the tsleep() call
in the per-device kthread. This ensures that synchronisation with
mddestroy() succeeds even if the kthread was not waiting in tsleep()
at the time of the wakeup(). Among other things, this fixes the
problem of mdconfig getting stuck when an attempt is made to use a
zero-length file as a vnode-type backing store.

Approved by:	re
2002-11-30 22:03:53 +00:00
Poul-Henning Kamp
8689acc48c We want /dev/md0 for ramdisk roots, not /dev/md0c.
Sponsored by:	DARPA & NAI Labs
2002-10-21 20:08:28 +00:00
Poul-Henning Kamp
975b628f27 Use ENOSPC error return, not ENOMEM.
Use %jd rather than %lld.
2002-10-20 20:50:31 +00:00
Jake Burkholder
81bb0b95b1 MODINFO_SIZE metadata has type size_t, not unsigned. This makes preloaded
md root work on sparc64.
2002-10-13 18:19:22 +00:00
Scott Long
316ec49abd Some kernel threads try to do significant work, and the default KSTACK_PAGES
doesn't give them enough stack to do much before blowing away the pcb.
This adds MI and MD code to allow the allocation of an alternate kstack
who's size can be speficied when calling kthread_create.  Passing the
value 0 prevents the alternate kstack from being created.  Note that the
ia64 MD code is missing for now, and PowerPC was only partially written
due to the pmap.c being incomplete there.
Though this patch does not modify anything to make use of the alternate
kstack, acpi and usb are good candidates.

Reviewed by:	jake, peter, jhb
2002-10-02 07:44:29 +00:00
Poul-Henning Kamp
1cff889a46 Put the casts on the right hand side of =. 2002-09-28 14:17:24 +00:00
Peter Grehan
a0c6726472 Initialize fwsectors/fwheads to allow the DIOCGFWSECTORS and
DIOCGFWHEADS ioctls to return meaningful values to disklabel/newfs

Approved by: phk
2002-09-22 10:07:18 +00:00
Poul-Henning Kamp
7812d86f03 (This commit touches about 15 disk device drivers in a very consistent
and predictable way, and I apologize if I have gotten it wrong anywhere,
getting prior review on a patch like this is not feasible, considering
the number of people involved and hardware availability etc.)

If struct disklabel is the messenger: kill the messenger.

Inside struct disk we had a struct disklabel which disk drivers used to
communicate certain metrics to the disklayer above (GEOM or the disk
mini-layer).  This commit changes this communication to use four
explicit fields instead.

Amongst the benefits is that the fields do not get overwritten by
wrong or bogus on-disk disklabels.

Once that is clear, <sys/disk.h> which is included in the drivers
no longer need to pull <sys/disklabel.h> and <sys/diskslice.h> in,
the few places that needs them, have gotten explicit #includes for
them.

The disklabel inside struct disk is now only for internal use in
the disk mini-layer, so instead of embedding it, we malloc it as
we need it.

This concludes (modulus any mistakes) the series of disklabel related
commits.

I belive it all amounts to a NOP for all the rest of you :-)

Sponsored by:   DARPA & NAI Labs.
2002-09-20 19:36:05 +00:00
Archie Cobbs
4a6a94d8d8 Replace (ab)uses of "NULL" where "0" is really meant. 2002-08-22 21:24:01 +00:00
Maxime Henrion
6569d6f3ec Yet another warning fix for 64 bits platforms.
Reviewed by:	phk
2002-06-24 12:07:02 +00:00
Poul-Henning Kamp
58f3c42e6d mdcreate_vnode() isn't correctly clearing things out of the linked
list if the file is of 0 size or mdsetcred() fails.

Submitted by:	Martin Faxer <gmh003532@brfmasthugget.se>
2002-06-15 19:18:43 +00:00
Maxim Sobolev
d8a186ebbb - Whitespace only: use return statement consistentlt (return (foo), not
return(foo)), kill extra blank names between function names;
- fix format string in printf(): devtoname() returns string, not pointer.
2002-06-10 19:25:21 +00:00
Ian Dowse
5c97ca54e5 Use a per-device worker thread to avoid blocking in mdstrategy()
until the I/O completes. This fixes some easily reproducable deadlocks
that occur when using md(4) with GEOM.

Reviewed by:	phk
2002-06-03 22:09:04 +00:00
Poul-Henning Kamp
fcf867e9f7 Mis-edit in last commit. 2002-05-26 09:57:59 +00:00
Poul-Henning Kamp
fde2a2e414 Be a bit smarter about rewriting data so we don't loose too much performance.
Sponsored by: DARPA & NAI Labs.
2002-05-26 09:38:51 +00:00
Poul-Henning Kamp
f43b2bac72 Use an umazone per unit for allocating the sectors for malloc backing.
Clean up things properly when we unconfigure malloc backed units.

Sponsored by:	DARPA & NAI Labs.
2002-05-26 06:48:55 +00:00
Poul-Henning Kamp
c6517568df Give the "malloc" backing of md(4) an adaptive multilevel index tree to
remove the need for a contiguous array with pointers to all the sectors.

Try to make failure to malloc(9) memory a non-hang situation.

Eventually this will allow us to test the 64bit cleanness of the disk
I/O patch, but more work is outstanding here and elsewhere.

Sponsored by:	DARPA & NAI Labs.
2002-05-25 20:44:20 +00:00
Poul-Henning Kamp
9589c2561c Fix a memory-leak when configuring a vnode backed md(4) device fails.
Submitted by:	Martin Faxér <gmh003532@brfmasthugget.se>
MFC after:	4 weeks
2002-05-03 17:55:10 +00:00
Jeff Roberson
421e6a659e Remove unused include. 2002-03-20 09:55:07 +00:00
Bruce Evans
1ab0b5f920 The previous commit missed fixing 2 old printf format errors and
introduced a format printf error.
2002-03-19 04:07:29 +00:00
Andrew Gallatin
54ed0c3221 Fix printf warning caused by recent changes in bio_pblkno's type. 2002-03-19 01:45:04 +00:00
Kirk McKusick
0d2af52141 Introduce the new 64-bit size disk block, daddr64_t. Change
the bio and buffer structures to have daddr64_t bio_pblkno,
b_blkno, and b_lblkno fields which allows access to disks
larger than a Terabyte in size. This change also requires
that the VOP_BMAP vnode operation accept and return daddr64_t
blocks. This delta should not affect system operation in
any way. It merely sets up the necessary interfaces to allow
the development of disk drivers that work with these larger
disk block addresses. It also allows for the development of
UFS2 which will use 64-bit block addresses.
2002-03-15 18:49:47 +00:00