Commit Graph

66 Commits

Author SHA1 Message Date
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
2c9b67a8df Remove unneeded #include <vm/vm_zone.h>
Generated by:	src/tools/tools/kerninclude
2000-04-30 18:52:11 +00:00
Robert Watson
7ef47eec4c ext2fs relies on UFS support code, and as a result also requires
extattr.h to be included.  This fixes the broken ext2fs build as of
the import of extattr code.

Also added $FreeBSD: $ to a couple of files that didn't have them,
without which I couldn't commit this fix.

Reported by:    "George W. Dinolt" <gdinolt@pacbell.net>
2000-04-15 17:14:22 +00:00
Bruce Evans
d1a417f17e Don't forget to check for unsupported features when updating. It was
possible to defeat the check for rw incompatibilty by mounting ro and
updating to rw.

Approved by:	jkh
2000-03-09 05:21:10 +00:00
Poul-Henning Kamp
ba4ad1fcea Give vn_isdisk() a second argument where it can return a suitable errno.
Suggested by:	bde
2000-01-10 12:04:27 +00:00
Bruce Evans
6291b96b03 Don't allow mounting (or mounting R/W) of filesystems with unsupported
features (except for file types in directory entries, which will be
supported soon).

Centralized the magic number and compatibility checking.

Dropped support for ancient (pre-0.2b) filesystems, as in the Linux
version.  Our "support" consisted of printing more details in the error
message before failing at mount time.
2000-01-02 17:40:02 +00:00
Robert Watson
91f37dcba1 Second pass commit to introduce new ACL and Extended Attribute system
calls, vnops, vfsops, both in /kern, and to individual file systems that
require a vfsop_ array entry.

Reviewed by:	eivind
1999-12-19 06:08:07 +00:00
Eivind Eklund
762e6b856c Introduce NDFREE (and remove VOP_ABORTOP) 1999-12-15 23:02:35 +00:00
Poul-Henning Kamp
0429e37ade struct mountlist and struct mount.mnt_list have no business being
a CIRCLEQ.  Change them to TAILQ_HEAD and TAILQ_ENTRY respectively.

This removes ugly  mp != (void*)&mountlist  comparisons.

Requested by:   phk
Submitted by:   Jake Burkholder jake@checker.org
PR:             14967
1999-11-20 10:00:46 +00:00
Poul-Henning Kamp
698f9cf828 Next step in the device cleanup process.
Correctly lock vnodes when calling VOP_OPEN() from filesystem mount code.

Unify spec_open() for bdev and cdev cases.

Remove the disabled bdev specific read/write code.
1999-11-09 14:15:33 +00:00
Mike Smith
6d14782861 Newline-terminate the complaint message about not being able to find
the root vnode pointer.
1999-11-01 23:57:28 +00:00
Poul-Henning Kamp
b89392e703 Remove the D_NOCLUSTER[RW] options which were added because vn had
problems.  Now that Matt has fixed vn, this can go.  The vn driver
should have used d_maxio (now si_iosize_max) anyway.
1999-09-30 07:11:30 +00:00
Alfred Perlstein
c24fda81c9 Seperate the export check in VFS_FHTOVP, exports are now checked via
VFS_CHECKEXP.

Add fh(open|stat|stafs) syscalls to allow userland to query filesystems
based on (network) filehandle.

Obtained from:	NetBSD
1999-09-11 00:46:08 +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
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
7dc5cd047f The bdevsw() and cdevsw() are now identical, so kill the former. 1999-08-13 10:29:38 +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
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
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
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
Bruce Evans
ae4d334421 Fixed parenthesization botch in previous commit. Async update of inodes
was broken.
1999-01-29 15:36:05 +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
d254af07a1 Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile
1999-01-27 21:50:00 +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
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
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
Bruce Evans
6674be30f6 Updated ext2_reload() and ext2_sync(). Locking was broken, and MNT_LAZY
syncs weren't optimized properly (they probably still aren't, but are bug
for bug compatible with ffs).  These fixes are mostly academic, since
ext2fs is too broken to mount read-write (it apparently doesn't clear
indirect blocks).

Obtained from:	mostly from Lite2
1998-09-26 12:42:17 +00:00
Bruce Evans
7cff8977ca Fixed missing newlines in messages in ext2_check_descriptors().
Fixed vnode and memory leaks after an unlikely (?) error in
ext2_mountfs().

Fixed an unconditional memory leak in ext2_unmount().
1998-09-26 07:16:41 +00:00
Bruce Evans
a094db128f Fixed clean flag handling:
Fixes for bugs not shared with ffs:
- don't mount unclean filesystems rw unless forced to.
- accept EXT2_ERROR_FS (treat it like !EXT2_VALID_FS).  We still don't set
  this or honour the maximal mount count.
- don't attempt to print the name of the mount point when mounting an
  unclean file system, since the name of the previous mount point is
  unknown and the name of the current mount point is still "".

Fixes for bugs shared with ffs until recently:
- don't set the clean flag on unmount of an initially-unclean filesystem
  that was (forcibly) mounted rw.
- set the clean flag on rw -> ro update of a mounted initially-clean
  filesystem.
- fixed some style bugs (mostly long lines).

The fixes are slightly simpler than for ffs, because the relevant on-disk
state is not a simple boolean variable, and the superblock has a core-only
extension.

Obtained from:	parts from ffs_vfsops.c, parts from NetBSD
1998-09-26 06:18:59 +00:00
Bruce Evans
5d207357db Fixed the usual missing permissions checks in mount(). As for cd9660,
the damage was limited by the default of 0 for vfs.usermount.

Obtained from:	Lite2 via the -current ffs_vfsops.c
1998-09-09 20:21:18 +00:00
Bruce Evans
05d46b3cd6 Don't forget to initialize the inode lock. This bug caused
surprisingly few problems.  Most fields were initialized to the
correct values by bzero(), but lk_prio was 0 instead of PINOD (=8),
the lk_wmsg was NULL instead of "ext2in", and lk_lockholder was 0
instead of -1.

Obtained from:	Lite2 via the -current ffs_vfsops.c
1998-09-09 13:09:24 +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
Julian Elischer
49cc016a39 add anti-panic workaround from chris radek (cradek@in221.inetnebr.com)
Not sure why this is needed but but does stop crashes.
1998-07-30 03:22:52 +00:00
Bruce Evans
dae50f6c50 Don't use "ffs" in an ext2fs sleep message string.
Don't forget to clear the inode hash lock before returning from ext2_vget()
after getnewvnode() fails.  Obtained from: rev.1.24 of ffs_vfsops.c (the
original patch for the getnewvnode() race).  Forgotten in: rev.1.4 here.

Removed a duplicate comment.  Duplicated in: rev.1.4 here.

Fixed the MALLOC() vs getnewvnode() race in ext2_vget().  Obtained from:
rev.1.39 of ffs_vfsops.c.
1998-05-16 17:47:44 +00:00
Mike Smith
79cc756d8b As described by the submitter:
Reverse the VFS_VRELE patch.  Reference counting of vnodes does not need
to be done per-fs.  I noticed this while fixing vfs layering violations.
Doing reference counting in generic code is also the preference cited by
John Heidemann in recent discussions with him.

The implementation of alternative vnode management per-fs is still a valid
requirement for some filesystems but will be revisited sometime later,
most likely using a different framework.

Submitted by:	Michael Hancock <michaelh@cet.co.jp>
1998-05-06 05:29:41 +00:00
Poul-Henning Kamp
227ee8a188 Eradicate the variable "time" from the kernel, using various measures.
"time" wasn't a atomic variable, so splfoo() protection were needed
around any access to it, unless you just wanted the seconds part.

Most uses of time.tv_sec now uses the new variable time_second instead.

gettime() changed to getmicrotime(0.

Remove a couple of unneeded splfoo() protections, the new getmicrotime()
is atomic, (until Bruce sets a breakpoint in it).

A couple of places needed random data, so use read_random() instead
of mucking about with time which isn't random.

Add a new nfs_curusec() function.

Mark a couple of bogosities involving the now disappeard time variable.

Update ffs_update() to avoid the weird "== &time" checks, by fixing the
one remaining call that passwd &time as args.

Change profiling in ncr.c to use ticks instead of time.  Resolution is
the same.

Add new function "tvtohz()" to avoid the bogus "splfoo(), add time, call
hzto() which subtracts time" sequences.

Reviewed by:	bde
1998-03-30 09:56:58 +00:00
Eivind Eklund
3bfd185367 Make this compile after soft updates integration.
LINTing forgotten by:	julian
1998-03-09 14:46:57 +00:00
Mike Smith
34bdbbd0de The intent is to get rid of WILLRELE in vnode_if.src by making
a complement to all ops that return a vpp, VFS_VRELE.  This is
initially only for file systems that implement the following ops
that do a WILLRELE:

	vop_create, vop_whiteout, vop_mknod, vop_remove, vop_link,
	vop_rename, vop_mkdir, vop_rmdir, vop_symlink

This is initial DNA that doesn't do anything yet.  VFS_VRELE is
implemented but not called.

A default vfs_vrele was created for fs implementations that use the
standard vnode management routines.

VFS_VRELE implementations were made for the following file systems:

Standard (vfs_vrele)
	ffs mfs nfs msdosfs devfs ext2fs

Custom
	union umapfs

Just EOPNOTSUPP
	fdesc procfs kernfs portal cd9660

These implementations may change as VOP changes are implemented.

In the next phase, in the vop implementations calls to vrele and the vrele
part of vput will be moved to the top layer vfs_vnops and made visible
to all layers.  vput will be replaced by unlock in these cases.  Unlocking
will still be done in the per fs layer but the refcount decrement will be
triggered at the top because it doesn't hurt to hold a vnode reference a
little longer.  This will have minimal impact on the structure of the
existing code.

This will only be done for vnode arguments that are released by the various
fs vop implementations.

Wider use of VFS_VRELE will likely require restructuring of the code.

Reviewed by:	phk, dyson, terry et. al.
Submitted by:	Michael Hancock <michaelh@cet.co.jp>
1998-03-01 22:46:53 +00:00
Bruce Evans
1dd78fb7ef Use the same algorithm as ffs for generation numbers. 1997-12-02 11:42:28 +00:00
Bruce Evans
2f169e4b76 Removed __FreeBSD__ ifdefs. 1997-12-02 10:39:42 +00:00
Bruce Evans
ff0618391a Use consistent description strings for M_EXT2NODE. This also fixes a
spelling error in the unused string.
1997-11-20 16:56:25 +00:00
Julian Elischer
b1f4a44b03 Reviewed by: various.
Ever since I first say the way the mount flags were used I've hated the
fact that modes, and events, internal and exported, and short-term
and long term flags are all thrown together. Finally it's annoyed me enough..
This patch to the entire FreeBSD tree adds a second mount flag word
to the mount struct. it is not exported to userspace. I have moved
some of the non exported flags over to this word. this means that we now
have 8 free bits in the mount flags. There are another two that might
well move over, but which I'm not sure about.
The only user visible change would have been in pstat -v, except
that davidg has disabled it anyhow.
I'd still like to move the state flags and the 'command' flags
apart from each other.. e.g. MNT_FORCE really doesn't have the
same semantics as MNT_RDONLY, but that's left  for another day.
1997-11-12 05:42:33 +00:00
Poul-Henning Kamp
987f569678 Another VFS cleanup "kilo commit"
1.  Remove VOP_UPDATE, it is (also) an UFS/{FFS,LFS,EXT2FS,MFS}
    intereface function, and now lives in the ufsmount structure.

2.  Remove VOP_SEEK, it was unused.

3.  Add mode default vops:

    VOP_ADVLOCK          vop_einval
    VOP_CLOSE            vop_null
    VOP_FSYNC            vop_null
    VOP_IOCTL            vop_enotty
    VOP_MMAP             vop_einval
    VOP_OPEN             vop_null
    VOP_PATHCONF         vop_einval
    VOP_READLINK         vop_einval
    VOP_REALLOCBLKS      vop_eopnotsupp

    And remove identical functionality from filesystems

4.   Add vop_stdpathconf, which returns the canonical stuff.  Use
     it in the filesystems.  (XXX: It's probably wrong that specfs
     and fifofs sets this vop, shouldn't it come from the "host"
     filesystem, for instance ufs or cd9660 ?)

5.   Try to make system wide VOP functions have vop_* names.

6.   Initialize the um_* vectors in LFS.

(Recompile your LKMS!!!)
1997-10-16 20:32:40 +00:00
Poul-Henning Kamp
cec0f20ce7 VFS mega cleanup commit (x/N)
1.  Add new file "sys/kern/vfs_default.c" where default actions for
    VOPs go. Implement proper defaults for ABORTOP, BWRITE, LEASE,
    POLL, REVOKE and STRATEGY.  Various stuff spread over the entire
    tree belongs here.

2.  Change VOP_BLKATOFF to a normal function in cd9660.

3.  Kill VOP_BLKATOFF, VOP_TRUNCATE, VOP_VFREE, VOP_VALLOC.  These
    are private interface functions between UFS and the underlying
    storage manager layer (FFS/LFS/MFS/EXT2FS).  The functions now
    live in struct ufsmount instead.

4.  Remove a kludge of VOP_ functions in all filesystems, that did
    nothing but obscure the simplicity and break the expandability.
    If a filesystem doesn't implement VOP_FOO, it shouldn't have an
    entry for it in its vnops table.  The system will try to DTRT
    if it is not implemented.  There are still some cruft left, but
    the bulk of it is done.

5.  Fix another VCALL in vfs_cache.c (thanks Bruce!)
1997-10-16 10:50:27 +00:00
Julian Elischer
7d1f0a2825 Two more places where root filesystems were mounted, put them at the head of
the mount list  in case there is already  DEVFS present.
1997-10-16 08:16:34 +00:00
Poul-Henning Kamp
a1c995b626 Last major round (Unless Bruce thinks of somthing :-) of malloc changes.
Distribute all but the most fundamental malloc types.  This time I also
remembered the trick to making things static:  Put "static" in front of
them.

A couple of finer points by:	bde
1997-10-12 20:26:33 +00:00
Poul-Henning Kamp
55166637cd Distribute and statizice a lot of the malloc M_* types.
Substantial input from:	bde
1997-10-11 18:31:40 +00:00
Poul-Henning Kamp
631821df68 Mega commit to cleanup the "remaining nits" after my malloc change.
Introduce a M_EXT2NODE for ext2fs vnodes.
Use generic ufs_reclaim instead of hijacking ffs_reclaim.
1997-10-10 18:13:06 +00:00
KATO Takenori
7825620c11 Oops, include <sys/conf.h>.
Reminded-by:	Simon Shapiro <Shimon@i-Connect.Net>
1997-09-28 02:23:10 +00:00
KATO Takenori
81bca6ddae Clustered read and write are switched at mount-option level.
1. Clustered I/O is switched by the MNT_NOCLUSTERR and MNT_NOCLUSTERW
   bits of the mnt_flag.  The sysctl variables, vfs.foo.doclusterread
   and vfs.foo.doclusterwrite are deleted.  Only mount option can
   control clustered I/O from userland.
2. When foofs_mount mounts block device, foofs_mount checks D_CLUSTERR
   and D_CLUSTERW bits of the d_flags member in the block device switch
   table.  If D_NOCLUSTERR / D_NOCLUSTERW are set, MNT_NOCLUSTERR /
   MNT_NOCLUSTERW bits will be set.  In this case, MNT_NOCLUSTERR and
   MNT_NOCLUSTERW cannot be cleared from userland.
3. Vnode driver disables both clustered read and write.
4. Union filesystem disables clutered write.

Reviewed by:	bde
1997-09-27 13:40:20 +00:00