Commit Graph

649 Commits

Author SHA1 Message Date
Poul-Henning Kamp
02e1576966 Make bdev userland access work like cdev userland access unless
the highly non-recommended option ALLOW_BDEV_ACCESS is used.

(bdev access is evil because you don't get write errors reported.)

Kill si_bsize_best before it kills Matt :-)

Use the specfs routines rather having cloned copies in devfs.
1999-08-30 07:56:23 +00:00
Bruce Evans
4047cd0bb2 Converted the silly SAFTEY option into a new-style option by renaming it to
DIAGNOSTIC.

Fixed an English style bug in the panic messages controlled by SAFETY.
1999-08-30 07:08:04 +00:00
Bruce Evans
8021ba879a Changed old-style option UNION_DIAGNOSTIC to DEBUG and fixed printf
format errors exposed by this.  It has nothing to do with diagnostics
since it does little more than control tracing of normal operation.
Actual diagnostics for the union file system are still controlled by
the DIAGNOSTIC option.
1999-08-29 10:03:35 +00:00
Bruce Evans
b00b6d73dd Changed old-style options UMAPFS_DIAGNOSTIC and UMAP_DIAGNOSTIC to DEBUG
or DDB and fixed printf format errors exposed by this.  The options had
little to do with diagnostics; they mostly controlled tracing of normal
operation.
1999-08-29 09:54:17 +00:00
Poul-Henning Kamp
94db13fe98 Fix various trivial warnings from LINT 1999-08-28 19:44:07 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Poul-Henning Kamp
dbafb3660f Simplify the handling of VCHR and VBLK vnodes using the new dev_t:
Make the alias list a SLIST.

        Drop the "fast recycling" optimization of vnodes (including
        the returning of a prexisting but stale vnode from checkalias).
        It doesn't buy us anything now that we don't hardlimit
        vnodes anymore.

        Rename checkalias2() and checkalias() to addalias() and
        addaliasu() - which takes dev_t and udev_t arg respectively.

        Make the revoke syscalls use vcount() instead of VALIASED.

        Remove VALIASED flag, we don't need it now and it is faster
        to traverse the much shorter lists than to maintain the
        flag.

        vfs_mountedon() can check the dev_t directly, all the vnodes
        point to the same one.

Print the devicename in specfs/vprint().

Remove a couple of stale LFS vnode flags.

Remove unimplemented/unused LK_DRAINED;
1999-08-26 14:53:31 +00:00
Poul-Henning Kamp
41d2e3e09e Introduce vn_isdisk(struct vnode *vp) function, and use it to test for diskness. 1999-08-25 12:24:39 +00:00
Julian Elischer
bb70475a92 Fix comment to match reality..
vop_strategy gets a vnode argument these days.
1999-08-25 00:26:34 +00:00
Bruce Evans
939cb7521a Initialise fsids with (user) device numbers again. Bitrot when dev_t's
were changed to pointers was obscured by casting dev_t's to longs.
fsids haven't even been comprised of longs since the Lite2 merge.
1999-08-23 21:07:13 +00:00
Poul-Henning Kamp
9dcbe2404a Convert DEVFS hooks in (most) drivers to make_dev().
Diskslice/label code not yet handled.

Vinum, i4b, alpha, pc98 not dealt with (left to respective Maintainers)

Add the correct hook for devfs to kern_conf.c

The net result of this excercise is that a lot less files depends on DEVFS,
and devtoname() gets more sensible output in many cases.

A few drivers had minor additional cleanups performed relating to cdevsw
registration.

A few drivers don't register a cdevsw{} anymore, but only use make_dev().
1999-08-23 20:59:21 +00:00
Marcel Moolenaar
63a9927353 Let processes retrieve their argv through procfs. Revert to the original
behaviour in all other cases.

Submitted by: Andrew Gordon <arg@arg1.demon.co.uk>
1999-08-19 19:41:08 +00:00
Alan Cox
2c28a10540 Add the (inline) function vm_page_undirty for clearing the dirty bitmask
of a vm_page.

Use it.

Submitted by:	dillon
1999-08-17 04:02:34 +00:00
Poul-Henning Kamp
49ff4debd3 Spring cleaning around strategy and disklabels/slices:
Introduce BUF_STRATEGY(struct buf *, int flag) macro, and use it throughout.
please see comment in sys/conf.h about the flag argument.

Remove strategy argument from all the diskslice/label/bad144
implementations, it should be found from the dev_t.

Remove bogus and unused strategy1 routines.

Remove open/close arguments from dssize().  Pick them up from dev_t.

Remove unused and unfinished setgeom support from diskslice/label/bad144 code.
1999-08-14 11:40:51 +00:00
Poul-Henning Kamp
2820b2e762 Add support for device drivers which want to track all open/close
operations.  This allows a device driver better insight into
what is going on that the current:

        proc1:  open /dev/foo R/O
                        devsw->open( R/O, proc1 )
        proc2:  open /dev/foo R/W
                        devsw->open( R/W, proc2 )
        proc2:  close
                        /* nothing, but device is
                           really only R/O open */
        proc1:  close
                        devsw->close( R/O, proc1 )
1999-08-13 16:29:27 +00:00
Poul-Henning Kamp
b3d7d91f32 Don't examine vp->v_tag (see comment in vnode.h) 1999-08-13 13:05:08 +00:00
Poul-Henning Kamp
608bb3ffdf Remove spec_getattr(), which as far as I can tell can never be called from the current code-paths, and if it were, would panic on any unmounted bdev. 1999-08-13 10:53:58 +00:00
Poul-Henning Kamp
7dc5cd047f The bdevsw() and cdevsw() are now identical, so kill the former. 1999-08-13 10:29:38 +00:00
Poul-Henning Kamp
4d4f932326 s/v_specinfo/v_rdev/ 1999-08-13 10:10:12 +00:00
Poul-Henning Kamp
0ef1c82630 Decommision miscfs/specfs/specdev.h. Most of it goes into <sys/conf.h>,
a few lines into <sys/vnode.h>.

Add a few fields to struct specinfo, paving the way for the fun part.
1999-08-08 18:43:05 +00:00
Bruce Evans
dd26feb90b Fixed printf format errors (%qu -> %llu; the arg was already unsigned long
long to hide problems on alphas).
1999-08-08 13:43:51 +00:00
Bruce Evans
f09d6e3daa Fixed all printf format errors reported by gcc -Wformat on i386's:
- %q -> %ll; don't assume that the promotion of off_t is quad_t; only
  assume that off_t's are representable as long longs.
- printing of dev_t's was completely broken.

Fixed nearby printf format errors not reported by gcc -Wformat on i386's:
- printing of ino_t's and pointers was sloppy.
1999-08-08 13:22:05 +00:00
Robert V. Baron
962e236ec0 The dev returned here is what is found in the st_dev field.
This should not be further translated ... hence the 0.
1999-08-02 20:55:11 +00:00
Bruce Evans
a2a0b22c90 Don't set DE_ACCESS for unsuccessful reads.
Translated from: a similar fix in ufs_readwrite.c rev.1.61.

Don't forget to set DE_ACCESS for short reads.

Check for invalid (negative) offsets before checking for reads of
0 bytes, as in ufs, although checking for invalid offsets at all
is probably a bug.
1999-07-25 04:01:32 +00:00
Poul-Henning Kamp
14b672a638 Remove the RCS "Log" and all the verbiage it has generated. 1999-07-21 12:51:36 +00:00
Poul-Henning Kamp
698bfad7f2 Now a dev_t is a pointer to struct specinfo which is shared by all specdev
vnodes referencing this device.

Details:
        cdevsw->d_parms has been removed, the specinfo is available
        now (== dev_t) and the driver should modify it directly
        when applicable, and the only driver doing so, does so:
        vn.c.  I am not sure the logic in checking for "<" was right
        before, and it looks even less so now.

        An intial pool of 50 struct specinfo are depleted during
        early boot, after that malloc had better work.  It is
        likely that fewer than 50 would do.

        Hashing is done from udev_t to dev_t with a prime number
        remainder hash, experiments show no better hash available
        for decent cost (MD5 is only marginally better)  The prime
        number used should not be close to a power of two, we use
        83 for now.

        Add new checkalias2() to get around the loss of info from
        dev2udev() in bdevvp();

        The aliased vnodes are hung on a list straight of the dev_t,
        and speclisth[SPECSZ] is unused.  The sharing of struct
        specinfo means that the v_specnext moves into the vnode
        which grows by 4 bytes.

        Don't use a VBLK dev_t which doesn't make sense in MFS, now
        we hang a dummy cdevsw on B/Cmaj 253 so that things look sane.

	Storage overhead from all of this is O(50k).

        Bump __FreeBSD_version to 400009

The next step will add the stuff needed so device-drivers can start to
hang things from struct specinfo
1999-07-20 09:47:55 +00:00
Poul-Henning Kamp
4fcd91ddf1 Don't access the device with vp->v_specinfo->si_rdev, use vp->v_rdev. 1999-07-20 07:18:17 +00:00
Poul-Henning Kamp
f008cfcc1a I have not one single time remembered the name of this function correctly
so obviously I gave it the wrong name.  s/umakedev/makeudev/g
1999-07-17 18:43:50 +00:00
Poul-Henning Kamp
46dcdb370e Allow jailed proccesses to open non-process vnodes like the root of the fs. 1999-07-09 21:31:44 +00:00
Peter Wemm
ebce412ca2 Use %q rather than rolling a custom routine. 1999-07-09 17:56:59 +00:00
Jonathan Lemon
d6c4f01106 Support for i386 hardware breakpoints.
Submitted by:	Brian Dean <brdean@unx.sas.com>
1999-07-09 04:18:32 +00:00
Jonathan Lemon
ab001a72be Implement support for hardware debug registers on the i386.
Submitted by:	Brian Dean <brdean@unx.sas.com>
1999-07-09 04:16:00 +00:00
Poul-Henning Kamp
8947a90a90 Make sure that stat(2) and friends always return a valid st_dev field.
Pseudo-FS need not fill in the va_fsid anymore, the syscall code
will use the first half of the fsid, which now looks like a udev_t
with major 255.
1999-07-02 16:29:47 +00:00
Peter Wemm
919d1ea275 move <sys/systm.h> before <sys/buf.h> 1999-07-01 22:12:39 +00:00
Kirk McKusick
67812eacd7 Convert buffer locking from using the B_BUSY and B_WANTED flags to using
lockmgr locks. This commit should be functionally equivalent to the old
semantics. That is, all buffer locking is done with LK_EXCLUSIVE
requests. Changes to take advantage of LK_SHARED and LK_RECURSIVE will
be done in future commits.
1999-06-26 02:47:16 +00:00
Kirk McKusick
f9c8cab591 Add a vnode argument to VOP_BWRITE to get rid of the last vnode
operator special case. Delete special case code from vnode_if.sh,
vnode_if.src, umap_vnops.c, and null_vnops.c.
1999-06-16 23:27:55 +00:00
Poul-Henning Kamp
7a7404d275 Eliminate the bogus procfs private almost struct dirent structure.
Spotted by: Lars Hamren
Reviewed by: bde
1999-06-13 20:53:16 +00:00
Dmitrij Tejblum
e2754b751d Remove an unused variable. 1999-06-01 20:29:58 +00:00
Poul-Henning Kamp
2447bec829 Simplify cdevsw registration.
The cdevsw_add() function now finds the major number(s) in the
struct cdevsw passed to it.  cdevsw_add_generic() is no longer
needed, cdevsw_add() does the same thing.

cdevsw_add() will print an message if the d_maj field looks bogus.

Remove nblkdev and nchrdev variables.  Most places they were used
bogusly.  Instead check a dev_t for validity by seeing if devsw()
or bdevsw() returns NULL.

Move bdevsw() and devsw() functions to kern/kern_conf.c

Bump __FreeBSD_version to 400006

This commit removes:
        72 bogus makedev() calls
        26 bogus SYSINIT functions

if_xe.c bogusly accessed cdevsw[], author/maintainer please fix.

I4b and vinum not changed.  Patches emailed to authors.  LINT
probably broken until they catch up.
1999-05-31 11:29:30 +00:00
Poul-Henning Kamp
4e2f199e0c This commit should be a extensive NO-OP:
Reformat and initialize correctly all "struct cdevsw".

        Initialize the d_maj and d_bmaj fields.

        The d_reset field was not removed, although it is never used.

I used a program to do most of this, so all the files now use the
same consistent format.  Please keep it that way.

Vinum and i4b not modified, patches emailed to respective authors.
1999-05-30 16:53:49 +00:00
Dmitrij Tejblum
9d3a442583 Don't call calcru() on a swapped-out process. calcru() access p_stats, which
is in U-area.
1999-05-22 20:10:31 +00:00
Semen Ustimenko
3c9bb8b7ff Driver is now ported to NetBSD.
Submitted by:	Christos Zoulas <christos@zoulas.com>
1999-05-12 09:43:09 +00:00
Poul-Henning Kamp
bfbb9ce670 Divorce "dev_t" from the "major|minor" bitmap, which is now called
udev_t in the kernel but still called dev_t in userland.

Provide functions to manipulate both types:
        major()         umajor()
        minor()         uminor()
        makedev()       umakedev()
        dev2udev()      udev2dev()

For now they're functions, they will become in-line functions
after one of the next two steps in this process.

Return major/minor/makedev to macro-hood for userland.

Register a name in cdevsw[] for the "filedescriptor" driver.

In the kernel the udev_t appears in places where we have the
major/minor number combination, (ie: a potential device: we
may not have the driver nor the device), like in inodes, vattr,
cdevsw registration and so on, whereas the dev_t appears where
we carry around a reference to a actual device.

In the future the cdevsw and the aliased-from vnode will be hung
directly from the dev_t, along with up to two softc pointers for
the device driver and a few houskeeping bits.  This will essentially
replace the current "alias" check code (same buck, bigger bang).

A little stunt has been provided to try to catch places where the
wrong type is being used (dev_t vs udev_t), if you see something
not working, #undef DEVT_FASCIST in kern/kern_conf.c and see if
it makes a difference.  If it does, please try to track it down
(many hands make light work) or at least try to reproduce it
as simply as possible, and describe how to do that.

Without DEVT_FASCIST I belive this patch is a no-op.

Stylistic/posixoid comments about the userland view of the <sys/*.h>
files welcome now, from userland they now contain the end result.

Next planned step: make all dev_t's refer to the same devsw[] which
means convert BLK's to CHR's at the perimeter of the vnodes and
other places where they enter the game (bootdev, mknod, sysctl).
1999-05-11 19:55:07 +00:00
Poul-Henning Kamp
61d9c46c46 remove cast from dev_t to dev_t. 1999-05-09 13:11:37 +00:00
Poul-Henning Kamp
4be2eb8c49 I got tired of seeing all the cdevsw[major(foo)] all over the place.
Made a new (inline) function devsw(dev_t dev) and substituted it.

Changed to the BDEV variant to this format as well: bdevsw(dev_t dev)

DEVFS will eventually benefit from this change too.
1999-05-08 06:40:31 +00:00
Daniel C. Sobral
a5eec77539 The lowercasing of Joliet filenames was not a feature. 1999-05-08 04:35:47 +00:00
Poul-Henning Kamp
46eede0058 Continue where Julian left off in July 1998:
Virtualize bdevsw[] from cdevsw.  bdevsw() is now an (inline)
        function.

        Join CDEV_MODULE and BDEV_MODULE to DEV_MODULE (please pay attention
        to the order of the cmaj/bmaj arguments!)

        Join CDEV_DRIVER_MODULE and BDEV_DRIVER_MODULE to DEV_DRIVER_MODULE
        (ditto!)

(Next step will be to convert all bdev dev_t's to cdev dev_t's
before they get to do any damage^H^H^H^H^H^Hwork in the kernel.)
1999-05-07 10:11:40 +00:00
Peter Wemm
21a1062c12 One too many vfsops.. 1999-05-06 22:07:34 +00:00
Poul-Henning Kamp
b0eeea2042 remove b_proc from struct buf, it's (now) unused.
Reviewed by:	dillon, bde
1999-05-06 20:00:34 +00:00
Peter Wemm
dfd5dee1b0 Add sufficient braces to keep egcs happy about potentially ambiguous
if/else nesting.
1999-05-06 18:13:11 +00:00
Poul-Henning Kamp
a6d3121589 Make the type and map files claim 0 bytes size. Tar doesn't get confused
now, but doesn't store any data eiter.

I wonder if we shouldn't claim to be fifos instead...
1999-05-04 08:01:55 +00:00
Poul-Henning Kamp
8902608d57 Add even more () to CHECKIO which by now feels positively LISPish.
Submitted by:	bde
Reviewed by:	phk
1999-05-04 08:00:10 +00:00
Poul-Henning Kamp
d37ed5a03a Add a new "file" to procfs: "rlimit" which shows the resource limits for
the process.

PR:		11342
Submitted by:	Adrian Chadd adrian@freebsd.org
Reviewed by:	phk
1999-04-30 13:04:21 +00:00
Poul-Henning Kamp
75c1354190 This Implements the mumbled about "Jail" feature.
This is a seriously beefed up chroot kind of thing.  The process
is jailed along the same lines as a chroot does it, but with
additional tough restrictions imposed on what the superuser can do.

For all I know, it is safe to hand over the root bit inside a
prison to the customer living in that prison, this is what
it was developed for in fact:  "real virtual servers".

Each prison has an ip number associated with it, which all IP
communications will be coerced to use and each prison has its own
hostname.

Needless to say, you need more RAM this way, but the advantage is
that each customer can run their own particular version of apache
and not stomp on the toes of their neighbors.

It generally does what one would expect, but setting up a jail
still takes a little knowledge.

A few notes:

   I have no scripts for setting up a jail, don't ask me for them.

   The IP number should be an alias on one of the interfaces.

   mount a /proc in each jail, it will make ps more useable.

   /proc/<pid>/status tells the hostname of the prison for
   jailed processes.

   Quotas are only sensible if you have a mountpoint per prison.

   There are no privisions for stopping resource-hogging.

   Some "#ifdef INET" and similar may be missing (send patches!)

If somebody wants to take it from here and develop it into
more of a "virtual machine" they should be most welcome!

Tools, comments, patches & documentation most welcome.

Have fun...

Sponsored by:   http://www.rndassociates.com/
Run for almost a year by:       http://www.servetheweb.com/
1999-04-28 11:38:52 +00:00
Poul-Henning Kamp
1c308b817a Change suser_xxx() to suser() where it applies. 1999-04-27 12:21:16 +00:00
Poul-Henning Kamp
f711d546d2 Suser() simplification:
1:
  s/suser/suser_xxx/

2:
  Add new function: suser(struct proc *), prototyped in <sys/proc.h>.

3:
  s/suser_xxx(\([a-zA-Z0-9_]*\)->p_ucred, \&\1->p_acflag)/suser(\1)/

The remaining suser_xxx() calls will be scrutinized and dealt with
later.

There may be some unneeded #include <sys/cred.h>, but they are left
as an exercise for Bruce.

More changes to the suser() API will come along with the "jail" code.
1999-04-27 11:18:52 +00:00
Semen Ustimenko
461b249325 Removed annoying messaged during boot,added some check
before mounting (should help to do not mount extended partitions:-).
Fixed problem with hanging while unmounting busy fs.

And (the most important) added some locks to prevent
simulaneous access to kernel structures!
1999-04-20 21:06:44 +00:00
Daniel C. Sobral
44e568e2a1 Add support for Joliet extensions to the iso9660 fs. The related PR
cannot yet be closed, though.

I hope I got all credits right, and that the multiple submitted by lines
do not break anyone's scripts...

PR:		kern/5038, kern/5567
Submitted by:	Keith Jang <keith@email.gcn.net.tw>
Submitted by:	Joachim Kuebart <joki@kuebart.stuttgart.netsurf.de>
Submitted by:	Byung Yang <byung@wam.umd.edu>
Submitted by:	Motomichi Matsuzaki <mzaki@e-mail.ne.jp>
1999-04-18 10:58:03 +00:00
Semen Ustimenko
2286ba29c0 Removed DIAGNOSTIC opion redefinition.
Submitted by:	Eivind Eklund <eivind@FreeBSD.org>
1999-04-13 14:54:20 +00:00
Julian Elischer
8d17e69460 Catch a case spotted by Tor where files mmapped could leave garbage in the
unallocated parts of the last page when the file ended on a frag
but not a page boundary.
Delimitted by tags PRE_MATT_MMAP_EOF and POST_MATT_MMAP_EOF,
in files alpha/alpha/pmap.c i386/i386/pmap.c nfs/nfs_bio.c vm/pmap.h
    vm/vm_page.c vm/vm_page.h vm/vnode_pager.c miscfs/specfs/spec_vnops.c
    ufs/ufs/ufs_readwrite.c kern/vfs_bio.c

Submitted by: Matt Dillon <dillon@freebsd.org>
Reviewed by: Alan Cox <alc@freebsd.org>
1999-04-05 19:38:30 +00:00
Dmitrij Tejblum
f1cde7a270 Back out half of 1.32: don't print a message on every failed mount attempt.
It is too chatty and hardly useful. 2 mesages in somewhat usual cases are
left for now.
1999-03-28 23:00:33 +00:00
Warner Losh
ba1602a8ed Don't allow anyone except root to mount file systems that map uids.
This can have bad security implications, but the impact on FreeBSD
systems is minimal because this fs isn't in the default kernels and it
is unknown if it even works.

Submitted by: Manuel Bouyer <bouyer@antioche.eu.org> and
	Artur Grabowski <art@stacken.kth.se>
1999-03-12 19:40:39 +00:00
Peter Wemm
a32cf1f06d This code got moved as a result of confusion between union mounts and
unionfs.  Julian has already revived the union mount part of this move
in vfs_syscalls.c rev 1.119, but forgot to take it out of here.
1999-02-28 16:13:25 +00:00
Matthew Dillon
155f87daf2 Reviewed by: Julian Elischer <julian@whistle.com>
Add d_parms() to {c,b}devsw[].  If non-NULL this function points to
    a device routine that will properly fill in the specinfo structure.
    vfs_subr.c's checkalias() supplies appropriate defaults.  This change
    should be fully backwards compatible with existing devices.
1999-02-25 05:22:30 +00:00
Luoqi Chen
b1028ad122 Hide access to vmspace:vm_pmap with inline function vmspace_pmap(). This
is the preparation step for moving pmap storage out of vmspace proper.

Reviewed by:	Alan Cox	<alc@cs.rice.edu>
		Matthew Dillion	<dillon@apollo.backplane.com>
1999-02-19 14:25:37 +00:00
Semen Ustimenko
5ada11aa72 Added limited write ability. Now we can use some kind
of files for swap holders. See mount_ntfs..8 for details.
1999-02-19 12:31:02 +00:00
Matthew Dillon
9fdfe602fc Remove MAP_ENTRY_IS_A_MAP 'share' maps. These maps were once used to
attempt to optimize forks but were essentially given-up on due to
    problems and replaced with an explicit dup of the vm_map_entry structure.
    Prior to the removal, they were entirely unused.
1999-02-07 21:48:23 +00:00
John Polstra
b7429e253a Correct a format mismatch on 64-bit architectures. This should
fix the erroneous values in the procfs "map" file on the Alpha.
1999-02-05 06:18:54 +00:00
Semen Ustimenko
16ee760296 First version.
Reviewed by:	David O'Brien <obrien@NUXI.com>
1999-02-03 04:07:38 +00:00
Bruce Evans
95c391a468 Don't comment out dead code; remove it. 1999-01-31 11:54:29 +00:00
Poul-Henning Kamp
904efa5a75 Use suser() to determine super-user-ness.
Don't pretend we can mount RW.

Reviewed by:	bde
1999-01-30 12:26:22 +00:00
Bruce Evans
1d20193564 Removed a bogus cast to c_caddr_t. This is part of terminating
c_caddr_t with extreme prejudice.  Here we want to convert from
`const char *' to `const char *'.  Casting through c_caddr_t is
not the way to do this.  The original cast to caddr_t was apparently
to break warnings about const mismatches in other versions of BSD
(in 4.4BSDLite2, the conversion is from `const char *path' to
plain caddr_t).
1999-01-29 07:23:53 +00:00
Matthew Dillon
8aef171243 Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile
1999-01-28 00:57:57 +00:00
Matthew Dillon
fe08c21a53 Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile.

    This commit includes significant work to proper handle const arguments
    for the DDB symbol routines.
1999-01-27 23:45:44 +00:00
Matthew Dillon
831a80b0d5 Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile
1999-01-27 22:42:27 +00:00
Matthew Dillon
d254af07a1 Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile
1999-01-27 21:50:00 +00:00
Matthew Dillon
b4e36adf1c Fix warnings preparing for -Wall -Wcast-qual
Also disable one usb module in LINT due to fatal compilation errors,
    temporary.
1999-01-27 20:09:21 +00:00
Matthew Dillon
1c7c3c6a86 This is a rather large commit that encompasses the new swapper,
changes to the VM system to support the new swapper, VM bug
    fixes, several VM optimizations, and some additional revamping of the
    VM code.  The specific bug fixes will be documented with additional
    forced commits.  This commit is somewhat rough in regards to code
    cleanup issues.

Reviewed by:	"John S. Dyson" <root@dyson.iquest.net>, "David Greenman" <dg@root.com>
1999-01-21 08:29:12 +00:00
Eivind Eklund
15a1057c46 Add 'options DEBUG_LOCKS', which stores extra information in struct
lock, and add some macros and function parameters to make sure that
the information get to the point where it can be put in the lock
structure.

While I'm here, add DEBUG_VFS_LOCKS to LINT.
1999-01-20 14:49:12 +00:00
Peter Wemm
b34c073744 Missed a stray LKM #ifdef 1999-01-17 21:04:53 +00:00
Peter Wemm
1351d07f0d Mountroot could concievably make sense to a KLD though, in the preload
case.  I'm not sure the autoconf code is up to it though...
1999-01-17 20:41:02 +00:00
Peter Wemm
6bfaa53754 Clean up the KLD/LKM goop a bit. 1999-01-17 20:25:22 +00:00
Eivind Eklund
ea2e827716 Remove declarations for undefined functions and a couple of unused
enotsupp implementations.
1999-01-12 11:49:30 +00:00
Bruce Evans
de5d1ba57c Don't pass unused unused timestamp args to UFS_UPDATE() or waste
time initializing them.  This almost finishes centralizing (in-core)
timestamp updates in ufs_itimes().
1999-01-07 16:14:19 +00:00
Eivind Eklund
fb1167777a Remove the 'waslocked' parameter to vfs_object_create(). 1999-01-05 18:50:03 +00:00
Peter Wemm
75ba77578f A partial implementation of the procfs cmdline pseudo-file. This
is enough to satisfy things like StarOffice.  This is a hack, but doing
it properly would be a LOT of work, and would require extensive grovelling
around in the user address space to find the argv[].

Obtained from: Mostly from Andrzej Bialecki <abial@nask.pl>.
1999-01-05 03:53:06 +00:00
Dmitrij Tejblum
57081f7b94 Now empty DOS filesystems default to long file names. Non-empty filesystems
without traces of Win95 default to short file names, as before.
1999-01-02 18:52:13 +00:00
Dmitrij Tejblum
9d9fdb45c5 Ensure that deHighClust in direntry always initialized.
Noticed by: 	Carl Mascott <cmascott@world.std.com>

Don't write access time of a file more than once per day. (Its precision is
1 day anyway). Don't try to write access and creation time in nonwin95 case.

Suggested by:	bde (long time ago).
1999-01-02 13:26:29 +00:00
Bruce Evans
289bdf33d3 Ifdefed conditionally used simplock variables. 1999-01-02 11:34:57 +00:00
Bruce Evans
f2aed91b48 Made this compile if UMAPFS_DIAGNOSTIC is defined. This has been broken
since before rev.1.1, so UMAPFS_DIAGNOSTIC should not be trusted.
UMAPFS_DIAGNOSTIC is commented out in LINT to hide various bugs.
1999-01-01 10:14:37 +00:00
Eivind Eklund
e910d98670 Fix possible NULL-pointer deref in error case (same as DEVFS). 1998-12-16 00:10:51 +00:00
Matthew Dillon
27ed09c2f0 Cleanup uninitialized-possibly-used (but really not) warnings 1998-12-14 05:00:59 +00:00
Archie Cobbs
f1d19042b0 The "easy" fixes for compiling the kernel -Wunused: remove unreferenced static
and local variables, goto labels, and functions declared but not defined.
1998-12-07 21:58:50 +00:00
Eivind Eklund
c598db2204 '\0' is the most ugly NULL pointer constant I've ever seen in real code. 1998-12-07 02:47:46 +00:00
Jordan K. Hubbard
7525853ce7 MFC: loosen compare even though bde doesn't like it. 1998-12-06 11:36:24 +00:00
Archie Cobbs
2127f26023 Examine all occurrences of sprintf(), strcat(), and str[n]cpy()
for possible buffer overflow problems. Replaced most sprintf()'s
with snprintf(); for others cases, added terminating NUL bytes where
appropriate, replaced constants like "16" with sizeof(), etc.

These changes include several bug fixes, but most changes are for
maintainability's sake. Any instance where it wasn't "immediately
obvious" that a buffer overflow could not occur was made safer.

Reviewed by:	Bruce Evans <bde@zeta.org.au>
Reviewed by:	Matthew Dillon <dillon@apollo.backplane.com>
Reviewed by:	Mike Spengler <mks@networkcs.com>
1998-12-04 22:54:57 +00:00
Robert V. Baron
0f45501efd Don't print diagnostic anymore 1998-12-04 18:44:21 +00:00
Dmitrij Tejblum
5c5926277e Honor MNT_NOATIME.
PR:		8383
Submitted by:	Carl Mascott <cmascott@world.std.com>
1998-11-29 22:38:57 +00:00
Bruce Evans
1e1c37f1cd Return ENOTTY instead of EBADF for ioctls on dead vnodes. This fixes
tcsetpgrp() on controlling terminals that are no longer associated
with the session of the calling process, not to mention ioctl.2.
1998-11-22 09:19:07 +00:00
Dmitrij Tejblum
bad3d41d83 Support NT VFAT lower case flags.
PR:		8383
(Mostly) Submitted by:	Carl Mascott <cmascott@world.std.com>
1998-11-21 00:20:24 +00:00
Robert V. Baron
b3a2ec1e44 A few bug fixes for Robert Watson 1998-11-16 19:48:26 +00:00
Bruce Evans
c25ded316f Finished updating module event handlers to be compatible with
modeventhand_t.
1998-11-15 15:33:52 +00:00
Robert V. Baron
a6c122eaf6 coda_lookup now passes up an extra flag. But old veni will
be ok; new veni will check /dev/cfs0 to make sure that a new
kernel is running.
Also, a bug in vc_nb_close iff CODA_SIGNAL's were seen has been
fixed.
1998-11-11 20:32:20 +00:00
Peter Wemm
1c5bb3eaa1 add #include <sys/kernel.h> where it's needed by MALLOC_DEFINE() 1998-11-10 09:16:29 +00:00
Peter Wemm
5187e87901 "fix" a warning that has been bugging me for ages. Eliminate a couple
of temporary variables since they are only used once and their types
were the cause of the warnings.
1998-11-09 09:21:25 +00:00
Peter Wemm
7b91328a39 Support KLD. We register and unregister two modules. "coda" (the vfs)
via VFS_SET(), and "codadev" for the cdevsw entry.  From kldstat -v:
 3    1 0xf02c5000 115d8    coda.ko
        Contains modules:
                Id Name
                 2 codadev
                 3 coda
1998-11-03 08:55:06 +00:00
Peter Wemm
8c14bf40a1 Change the #ifdef UNION code into a callable hook. Arrange to have this
set up when unionfs is present, either statically or as a kld module.
1998-11-03 08:01:48 +00:00
Peter Wemm
40c8cfe552 Use TAILQ macros for clean/dirty block list processing. Set b_xflags
rather than abusing the list next pointer with a magic number.
1998-10-31 15:31:29 +00:00
Peter Wemm
44fdad9976 Use vtruncbuf() rather than vinvalbuf() when shortening files. 1998-10-29 09:29:17 +00:00
Robert V. Baron
6f72efa21b Change the way unmounting happens to guarantee that the
client programs are allowed to finish up (coda_call is
forced to complete) and release their locks.  Thus there
is a reasonable chance that the vflush implicit in the
unmount will not get hung on held locks.
1998-10-28 20:31:13 +00:00
Robert V. Baron
e8e04c2b37 Venus must be passed O_CREAT flag on VOP_OPEN iff this is
a creat so that we can will allow a mode 444 file to be
written into.  Sync with the latest coda.h and deal with
collateral damage.
1998-10-28 19:33:50 +00:00
David Greenman
730075613a Added a second argument, "activate" to the vm_page_unwire() call so that
the caller can select either inactive or active queue to put the page on.
1998-10-28 13:37:02 +00:00
Bruce Evans
569555b969 Removed redundant bitrotted checks for major numbers instead of updating
them.
1998-10-26 08:53:13 +00:00
Bruce Evans
65baf8f06b Don't follow null bdevsw pointers. The `major(dev) < nblkdev' test rotted
when bdevsw[] became sparse.  We still depend on magic to avoid having to
check that (v_rdev) device numbers in vnodes are not NODEV.
1998-10-25 19:26:18 +00:00
Poul-Henning Kamp
f5ef029e92 Nitpicking and dusting performed on a train. Removes trivial warnings
about unused variables, labels and other lint.
1998-10-25 17:44:59 +00:00
Robert V. Baron
ecee3646ce Fixes for lkm:
1. use VFS_LKM vs ACTUALLY_LKM_NOT_KERNEL
2. don't pass -DCODA to lkm build
1998-09-29 20:19:45 +00:00
Robert V. Baron
059b1b8277 Cleanup and fix THE bug 1998-09-28 20:52:58 +00:00
Robert V. Baron
435385d6ae Don't lose this file 1998-09-25 17:40:50 +00:00
Robert V. Baron
6a6e8b2134 Put "stray" printouts under DIAGNOSTIC. Make everything build
with DEBUG on.  Add support for lkm.  (The macro's don't work
for me; for a good chuckle look at the end of coda_fbsd.c.)
1998-09-25 17:38:32 +00:00
Søren Schmidt
d024c95599 Remove the SLICE code.
This clearly needs alot more thought, and we dont need this to hunt
us down in 3.0-RELEASE.
1998-09-14 19:56:42 +00:00
Dmitrij Tejblum
5d3e2869e5 Remove unused variable.
Pointed out by:	bde
1998-09-13 15:40:31 +00:00
Dmitrij Tejblum
e27b047ccf Fix a bug related to renaming in root directory. This bug reported by
Cejka Rudolf <cejkar@dcse.fee.vutbr.cz> on freebsd-current in Messaage-Id
<199807141023.MAA09803@kazi.dcse.fee.vutbr.cz>.

Reviewed by:	bde
1998-09-13 15:39:01 +00:00
Robert V. Baron
d3459488ae Finish conversion of cfs -> coda 1998-09-13 13:57:59 +00:00
Poul-Henning Kamp
649c00db71 various nits that didn't make it through the brucefilter. 1998-09-12 20:21:54 +00:00
Robert V. Baron
9afcea2f4a All the references to cfs, in symbols, structs, and strings
have been changed to coda.  (Same for CFS.)
1998-09-11 18:50:17 +00:00
Bruce Evans
8994ca3ce9 Removed statically configured mount type numbers (MOUNT_*) and all
references to them.

The change a couple of days ago to ignore these numbers in statically
configured vfsconf structs was slightly premature because the cd9660,
cfs, devfs, ext2fs, nfs vfs's still used MOUNT_* instead of the number
in their vfsconf struct.
1998-09-07 13:17:06 +00:00
Guido van Rooij
a031dfd5e2 Fix problem reported on bugtraq: check permission of device mounted
for non-root users. Fortunately, the default for vfs.usermount is 0.
Tested by:	"Jan B. Koum " <jkb@best.com
1998-09-07 07:20:30 +00:00
Robert V. Baron
03507b2123 Clean LINT 1998-09-06 20:01:34 +00:00
Poul-Henning Kamp
0375c9f2b8 Add a new vnode op, VOP_FREEBLKS(), which filesystems can use to inform
device drivers about sectors no longer in use.

Device-drivers receive the call through d_strategy, if they have
D_CANFREE in d_flags.

This allows flash based devices to erase the sectors and avoid
pointlessly carrying them around in compactions.

Reviewed by:	Kirk Mckusick, bde
Sponsored by:	M-Systems (www.m-sys.com)
1998-09-05 14:13:12 +00:00
Doug Rabson
e69763a315 Cosmetic changes to the PAGE_XXX macros to make them consistent with
the other objects in vm.
1998-09-04 08:06:57 +00:00
Robert V. Baron
41159be768 Pass2 complete 1998-09-02 19:09:53 +00:00
Robert V. Baron
e19a190886 Very Preliminary Coda 1998-08-29 21:14:52 +00:00
Poul-Henning Kamp
a9ea5c0c51 sort the prototypes 1998-08-25 17:48:54 +00:00
Poul-Henning Kamp
07fe032454 Last commit managed to get mangled somehow. 1998-08-24 18:23:18 +00:00
Poul-Henning Kamp
1d9b3ba13d Remove the last remaining evidence of B_TAPE.
Reclaim 3 unused bits in b_flags
1998-08-24 17:47:25 +00:00
Bruce Evans
4e9a89772a Enabled Lite2 fix for reading from dead ttys. 1998-08-23 11:43:29 +00:00
Bruce Evans
0492d857d1 Removed unused includes. 1998-08-17 19:09:36 +00:00
Bruce Evans
86a14a7a0a Use [u]intptr_t instead of [u_]long for casts between pointers and
integers.  Don't forget to cast to (void *) as well.
1998-08-16 01:21:52 +00:00
Bruce Evans
89785a1654 Fixed printf format errors. 1998-07-30 17:40:45 +00:00
Alexander Langer
f35f7d0dfd Style fixes and a bug fix: don't remove the exit handler if unmount
fails.

Submitted by:	bde
1998-07-27 22:47:17 +00:00
Alexander Langer
3f47ee5c4d A better solution to the rm_at_exit problem: Register the exit function
during first mount.  Unregister the exit function at last unmount.

Concept by:	sef
Reviewed by:	sef
Implemented by:	alex
1998-07-27 01:07:01 +00:00
Alexander Langer
ca2be56ff9 Override the default VFS LKM dispatch functions so that a module
unload function can be provided (this is necessary to unregister
the at_exit handler).
1998-07-25 15:52:44 +00:00
Bruce Evans
15c7382561 Cast pointers to [u]intptr_t instead of to [unsigned] long. 1998-07-15 04:17:55 +00:00
Bruce Evans
a23d65bfc8 Cast pointers to uintptr_t/intptr_t instead of to u_long/long,
respectively.  Most of the longs should probably have been
u_longs, but this changes is just to prevent warnings about
casts between pointers and integers of different sizes, not
to fix poorly chosen types.
1998-07-15 02:32:35 +00:00
Bruce Evans
ac1e407b32 Fixed printf format errors. 1998-07-11 07:46:16 +00:00
Bruce Evans
96eb19e1a3 Quick fix for type mismatches which were fatal if longs aren't 32
bits.  We used a private, wrong, version of `struct dirent' to help
break getdirentries(), and we use a silly check that the size of this
struct is a power of 2 to help break mount() if getdirentries() would
not work.  This fix just changes the struct to match `struct dirent'
(except for the name length).
1998-07-07 04:08:44 +00:00
Julian Elischer
f7ea2f55d1 There is no such thing any more as "struct bdevsw".
There is only cdevsw (which should be renamed in a later edit to deventry
or something). cdevsw contains the union of what were in both bdevsw an
cdevsw entries.  The bdevsw[] table stiff exists and is a second pointer
to the cdevsw entry of the device. it's major is in d_bmaj rather than
d_maj. some cleanup still to happen (e.g. dsopen now gets two pointers
to the same cdevsw struct instead of one to a bdevsw and one to a cdevsw).

rawread()/rawwrite() went away as part of this though it's not strictly
the same  patch, just that it involves all the same lines in the drivers.

cdroms no longer have write() entries (they did have rawwrite (?)).
tapes no longer have support for bdev operations.

Reviewed by: Eivind Eklund and Mike Smith
	Changes suggested by eivind.
1998-07-04 22:30:26 +00:00
Julian Elischer
fd5d1124e2 VOP_STRATEGY grows an (struct vnode *) argument
as the value in b_vp is often not really what you want.
(and needs to be frobbed). more cleanups will follow this.
Reviewed by: Bruce Evans <bde@freebsd.org>
1998-07-04 20:45:42 +00:00
Dmitrij Tejblum
6bfc1a02b1 Remove "not hungly" panics. Cookies now used by the linux and ibcs2
emulators. The emulators assume that filesystem may just ignore cookies, and
handle this case correctly. So we just ignore cookies.

Also sync *_readdir "prototypes" with reality.
1998-06-25 16:54:41 +00:00
Bruce Evans
a395dbb153 Avoid a 64-bit division in procfs_readdir(). Fixed related overflows.
Check args using the same expression as in fdesc and kernfs.  The check
was actually already correct, modulo overflow.  It could be tightened
up to either allow huge (aligned) offsets, treating them as EOF, or
disallow all offsets beyond EOF.

Didn't fix invalid address calculation &foo[i] where i may be out of
bounds.

Didn't fix shooting of foot using a private unportable dirent struct.
1998-06-14 12:53:39 +00:00