Commit Graph

35 Commits

Author SHA1 Message Date
Poul-Henning Kamp
8adeb35aff Remove MFS compat bits. 2001-05-29 18:49:23 +00:00
Dima Dorfman
5a025167e7 Acquire vm_mtx before calling vm_pager_deallocate.
Reviewed by:	phk
2001-05-27 00:42:46 +00:00
John Baldwin
9dceb26b23 Sort includes. 2001-05-21 18:52:02 +00:00
Alfred Perlstein
2395531439 Introduce a global lock for the vm subsystem (vm_mtx).
vm_mtx does not recurse and is required for most low level
vm operations.

faults can not be taken without holding Giant.

Memory subsystems can now call the base page allocators safely.

Almost all atomic ops were removed as they are covered under the
vm mutex.

Alpha and ia64 now need to catch up to i386's trap handlers.

FFS and NFS have been tested, other filesystems will need minor
changes (grabbing the vm lock when twiddling page properties).

Reviewed (partially) by: jake, jhb
2001-05-19 01:28:09 +00:00
Poul-Henning Kamp
d4e6d409ca Polish error handling code using biofinish() 2001-05-08 09:09:32 +00:00
Poul-Henning Kamp
a468031ce8 Actually biofinish(struct bio *, struct devstat *, int error) is more general
than the bioerror().

Most of this patch is generated by scripts.
2001-05-06 20:00:03 +00:00
Poul-Henning Kamp
1f4ee1aac4 Fix a panic if MD devices were left half-created.
XXX: the real bug is that devstat isn't part of the disk minilayer.

PR:		27158
Submitted by:	Anders Nordby <anders@fix.no>
2001-05-06 17:17:23 +00:00
Mark Murray
fb919e4d5a Undo part of the tangle of having sys/lock.h and sys/mutex.h included in
other "system" header files.

Also help the deprecation of lockmgr.h by making it a sub-include of
sys/lock.h and removing sys/lockmgr.h form kernel .c files.

Sort sys/*.h includes where possible in affected files.

OK'ed by:	bde (with reservations)
2001-05-01 08:13:21 +00:00
Poul-Henning Kamp
53233f9499 Fix a reference to the "vn" driver in a warning message. 2001-03-20 12:31:53 +00:00
Poul-Henning Kamp
0ac6032373 Use a more BIOS friendly geometry.
Submitted by:	joe
2001-03-09 20:06:30 +00:00
Poul-Henning Kamp
174b5e9aec Make "md" and "mdctl" macroized parameters.
Implement "-l" option to mdconfig which can list one or all md devices.

Submitted by:   Dima Dorfman <dima@unixfreak.org>
2001-02-25 13:12:57 +00:00
Poul-Henning Kamp
57e9624ec9 Make md/mdconfig do kld.
Submitted by:	dcs
2001-02-24 16:26:41 +00:00
Poul-Henning Kamp
c93849206e Remove devstat entries in mddelete()
Spotted:	tegge
2001-01-28 20:55:55 +00:00
Poul-Henning Kamp
96b6a55f97 General cleanup. 2001-01-21 22:57:56 +00:00
Peter Wemm
dc57d7c6dc Fix a maybe-not-so-harmless warning. 2001-01-19 09:02:40 +00:00
Poul-Henning Kamp
637f671a3d Either cvs(1) or I forgot this file in my last commit.
Please see commit log for rev 1.4 of src/sbin/mdconfig/mdconfig.c
2001-01-02 09:42:47 +00:00
Poul-Henning Kamp
8f8def9e2c This is the first snapshot of the new all-singing-and-dancing md(4).
Using the mdconfig(8) program you can now configure memory disks
on malloc(9), swap or a file/vnode.  preloaded md disks also work
as usual.
2000-12-31 13:03:42 +00:00
Poul-Henning Kamp
e0913a2c44 Enforce disk unit numbers upper limit in cloning. 2000-12-15 16:42:38 +00:00
David Malone
7cc0979fd6 Convert more malloc+bzero to malloc+M_ZERO.
Submitted by:	josh@zipperup.org
Submitted by:	Robert Drehmel <robd@gmx.net>
2000-12-08 21:51:06 +00:00
Poul-Henning Kamp
db90128160 Avoid the modules madness I inadvertently introduced by making the
cloning infrastructure standard in kern_conf.  Modules are now
the same with or without devfs support.

If you need to detect if devfs is present, in modules or elsewhere,
check the integer variable "devfs_present".

This happily removes an ugly hack from kern/vfs_conf.c.

This forces a rename of the eventhandler and the standard clone
helper function.

Include <sys/eventhandler.h> in <sys/conf.h>: it's a helper #include
like <sys/queue.h>

Remove all #includes of opt_devfs.h they no longer matter.
2000-09-02 19:17:34 +00:00
Doug Rabson
21c3015a24 * Completely rewrite the alpha busspace to hide the implementation from
the drivers.
* Remove legacy inx/outx support from chipset and replace with macros
  which call busspace.
* Rework pci config accesses to route through the pcib device instead of
  calling a MD function directly.

With these changes it is possible to cleanly support machines which have
more than one independantly numbered PCI busses. As a bonus, the new
busspace implementation should be measurably faster than the old one.
2000-08-28 21:48:13 +00:00
Poul-Henning Kamp
3f54a085a6 Remove all traces of Julians DEVFS (incl from kern/subr_diskslice.c)
Remove old DEVFS support fields from dev_t.

  Make uid, gid & mode members of dev_t and set them in make_dev().

  Use correct uid, gid & mode in make_dev in disk minilayer.

  Add support for registering alias names for a dev_t using the
  new function make_dev_alias().  These will show up as symlinks
  in DEVFS.

  Use makedev() rather than make_dev() for MFSs magic devices to prevent
  DEVFS from noticing this abuse.

  Add a field for DEVFS inode number in dev_t.

  Add new DEVFS in fs/devfs.

  Add devfs cloning to:
        disk minilayer (ie: ad(4), sd(4), cd(4) etc etc)
        md(4), tun(4), bpf(4), fd(4)

  If DEVFS add -d flag to /sbin/inits args to make it mount devfs.

  Add commented out DEVFS to GENERIC
2000-08-20 21:34:39 +00:00
Sheldon Hearn
f274479332 Rename MDNSECT to MD_NSECT and declare it as something that isn't
default in NOTES.

Requested by:	bde
Approved by:	phk
2000-07-17 13:13:04 +00:00
Poul-Henning Kamp
0cfaeeee87 Fix the "almost clone" semantics. 2000-07-04 10:06:34 +00:00
Poul-Henning Kamp
9626b608de Separate the struct bio related stuff out of <sys/buf.h> into
<sys/bio.h>.

<sys/bio.h> is now a prerequisite for <sys/buf.h> but it shall
not be made a nested include according to bdes teachings on the
subject of nested includes.

Diskdrivers and similar stuff below specfs::strategy() should no
longer need to include <sys/buf.> unless they need caching of data.

Still a few bogus uses of struct buf to track down.

Repocopy by:    peter
2000-05-05 09:59:14 +00:00
Poul-Henning Kamp
8177437d85 Complete the bio/buf divorce for all code below devfs::strategy
Exceptions:
        Vinum untouched.  This means that it cannot be compiled.
        Greg Lehey is on the case.

        CCD not converted yet, casts to struct buf (still safe)

        atapi-cd casts to struct buf to examine B_PHYS
2000-04-15 05:54:02 +00:00
Poul-Henning Kamp
21144e3bf1 Remove B_READ, B_WRITE and B_FREEBUF and replace them with a new
field in struct buf: b_iocmd.  The b_iocmd is enforced to have
exactly one bit set.

B_WRITE was bogusly defined as zero giving rise to obvious coding
mistakes.

Also eliminate the redundant struct buf flag B_CALL, it can just
as efficiently be done by comparing b_iodone to NULL.

Should you get a panic or drop into the debugger, complaining about
"b_iocmd", don't continue.  It is likely to write on your disk
where it should have been reading.

This change is a step in the direction towards a stackable BIO capability.

A lot of this patch were machine generated (Thanks to style(9) compliance!)

Vinum users:  Greg has not had time to test this yet, be careful.
2000-03-20 10:44:49 +00:00
Poul-Henning Kamp
66c161915b Initialize type correctly. 1999-12-01 10:20:21 +00:00
Poul-Henning Kamp
71e4fff823 Retire MFS_ROOT and MFS_ROOT_SIZE options from the MFS implementation.
Add MD_ROOT and MD_ROOT_SIZE options to the md driver.

Make the md driver handle MFS_ROOT and MFS_ROOT_SIZE options for compatibility.

Add md driver to GENERIC, PCCARD and LINT.

This is a cleanup which removes the need for some of the worse hacks in
MFS:  We really want to have a rootvnode but MFS on a preloaded image
doesn't really have one.  md is a true device, so it is less trouble.

This has been tested with make release, and if people remember to add
the "md" pseudo-device to their kernels, PicoBSD should be just fine
as well.  If people have no other use for MFS, it can be removed from
the kernel.
1999-11-26 20:08:44 +00:00
Poul-Henning Kamp
95f1a897f9 Teach the md driver to use preloaded files of type "md_image". 1999-11-20 22:43:27 +00:00
Poul-Henning Kamp
c23f21660c remove unused #include 1999-10-11 19:16:54 +00:00
Poul-Henning Kamp
d6a0e38a1b Remove five now unused fields from struct cdevsw. They should never
have been there in the first place.  A GENERIC kernel shrinks almost 1k.

Add a slightly different safetybelt under nostop for tty drivers.

Add some missing FreeBSD tags
1999-09-25 18:24:47 +00:00
Brian Feldman
27068b01f7 Fix includes (remove unnecessary ones, reorder necessary ones.)
Also, correct an %x to be %lx.

Reviewed by:	phk
1999-09-22 21:23:21 +00:00
Poul-Henning Kamp
33edfabe57 fix a buglet which jordan made me provoke :-) 1999-09-21 12:05:38 +00:00
Poul-Henning Kamp
00a6a3c65f Add an experimental Memory-Disk driver. This driver will allocate
memory with malloc(9) using a few tricks to save space on the way.
1999-09-21 11:00:49 +00:00