Commit Graph

249 Commits

Author SHA1 Message Date
Poul-Henning Kamp
6366900a0f First save from editor, *then* commit. 2004-12-07 15:25:36 +00:00
Poul-Henning Kamp
5c83b5551c Fix exports. 2004-12-07 15:13:35 +00:00
Poul-Henning Kamp
20a92a18f1 The remaining part of nmount/omount/rootfs mount changes. I cannot sensibly
split the conversion of the remaining three filesystems out from the root
mounting changes, so in one go:

cd9660:
	Convert to nmount.
	Add omount compat shims.
	Remove dedicated rootfs mounting code.
	Use vfs_mountedfrom()
	Rely on vfs_mount.c calling VFS_STATFS()

nfs(client):
	Convert to nmount (the simple way, mount_nfs(8) is still necessary).
	Add omount compat shims.
	Drop COMPAT_PRELITE2 mount arg compatibility.

ffs:
	Convert to nmount.
	Add omount compat shims.
	Remove dedicated rootfs mounting code.
	Use vfs_mountedfrom()
	Rely on vfs_mount.c calling VFS_STATFS()

Remove vfs_omount() method, all filesystems are now converted.

Remove MNTK_WANTRDWR, handling RO/RW conversions is a filesystem
task, and they all do it now.

Change rootmounting to use DEVFS trampoline:

vfs_mount.c:
	Mount devfs on /.  Devfs needs no 'from' so this is clean.
	symlink /dev to /.  This makes it possible to lookup /dev/foo.
	Mount "real" root filesystem on /.
	Surgically move the devfs mountpoint from under the real root
	filesystem onto /dev in the real root filesystem.

Remove now unnecessary getdiskbyname().

kern_init.c:
	Don't do devfs mounting and rootvnode assignment here, it was
	already handled by vfs_mount.c.

Remove now unused bdevvp(), addaliasu() and addalias().  Put the
few necessary lines in devfs where they belong.  This eliminates the
second-last source of bogo vnodes, leaving only the lemming-syncer.

Remove rootdev variable, it doesn't give meaning in a global context and
was not trustworth anyway.  Correct information is provided by
statfs(/).
2004-12-07 08:15:41 +00:00
Poul-Henning Kamp
743312367a VFS_STATFS(mp, ...) is mostly called with &mp->mnt_stat, but a few cases
doesn't.  Most of the implementations have grown weeds for this so they
copy some fields from mnt_stat if the passed argument isn't that.

Fix this the cleaner way:  Always call the implementation on mnt_stat
and copy that in toto to the VFS_STATFS argument if different.
2004-12-05 22:41:02 +00:00
Poul-Henning Kamp
aec0fb7b40 Back when VOP_* was introduced, we did not have new-style struct
initializations but we did have lofty goals and big ideals.

Adjust to more contemporary circumstances and gain type checking.

	Replace the entire vop_t frobbing thing with properly typed
	structures.  The only casualty is that we can not add a new
	VOP_ method with a loadable module.  History has not given
	us reason to belive this would ever be feasible in the the
	first place.

	Eliminate in toto VOCALL(), vop_t, VNODEOP_SET() etc.

	Give coda correct prototypes and function definitions for
	all vop_()s.

	Generate a bit more data from the vnode_if.src file:  a
	struct vop_vector and protype typedefs for all vop methods.

	Add a new vop_bypass() and make vop_default be a pointer
	to another struct vop_vector.

	Remove a lot of vfs_init since vop_vector is ready to use
	from the compiler.

	Cast various vop_mumble() to void * with uppercase name,
	for instance VOP_PANIC, VOP_NULL etc.

	Implement VCALL() by making vdesc_offset the offsetof() the
	relevant function pointer in vop_vector.  This is disgusting
	but since the code is generated by a script comparatively
	safe.  The alternative for nullfs etc. would be much worse.

	Fix up all vnode method vectors to remove casts so they
	become typesafe.  (The bulk of this is generated by scripts)
2004-12-01 23:16:38 +00:00
Poul-Henning Kamp
6fde64c778 Mechanically change prototypes for vnode operations to use the new typedefs. 2004-12-01 12:24:41 +00:00
Poul-Henning Kamp
9c83534dd8 Make VOP_BMAP return a struct bufobj for the underlying storage device
instead of a vnode for it.

The vnode_pager does not and should not have any interest in what
the filesystem uses for backend.

(vfs_cluster doesn't use the backing store argument.)
2004-11-15 09:18:27 +00:00
Poul-Henning Kamp
282d0382ac Detect root mount attempts on the flag, not on the NULL path. 2004-11-09 22:21:52 +00:00
Poul-Henning Kamp
bf7e2ae1c4 Move CD9660 to GEOM backing instead of DEVFS.
For details, please see src/sys/ufs/ffs/ffs_vfsops.c 1.250.
2004-10-29 10:41:44 +00:00
Poul-Henning Kamp
d83b7498a4 Eliminate unnecessary KASSERTs.
Don't use bp->b_vp in VOP_STRATEGY: the vnode is passed in as an argument.
2004-10-27 06:48:21 +00:00
Poul-Henning Kamp
9bd188b936 Hold proper thread count while frobbing drivers ioctl. 2004-09-24 07:24:02 +00:00
Poul-Henning Kamp
bc710003ac Pointy hat please!
Refuse VCHR not VREG.
2004-09-22 18:18:26 +00:00
Poul-Henning Kamp
a367987828 De support opening device nodes on CD9660 filesystems. They are
still visible, they can still be seen, but they cannot be opened.
Use DEVFS for that.
2004-09-21 08:42:37 +00:00
Tim J. Robbins
82c0aec8de Temporarily back out revision 1.77. This changed cd9660_getattr() and
cd9660_readdir() to return the address of the file's first data block as
the inode number instead of the address of the directory entry, but
neglected to update cd9660_vget_internal() for the new inode numbering
scheme.

Since the NFS server calls VFS_VGET (cd9660_vget()) with inode numbers
returned through VOP_READDIR (cd9660_readdir()) when servicing a READDIRPLUS
request, these two interfaces must agree on the numbering scheme; failure to
do so caused panics and/or bogus information about the entries to be returned
to clients using READDIRPLUS (Solaris, FreeBSD w/ mount -o rdirplus).

PR:		63446
2004-09-05 11:18:53 +00:00
Poul-Henning Kamp
5e8c582ac2 Put a version element in the VFS filesystem configuration structure
and refuse initializing filesystems with a wrong version.  This will
aid maintenance activites on the 5-stable branch.

s/vfs_mount/vfs_omount/

s/vfs_nmount/vfs_mount/

Name our filesystems mount function consistently.

Eliminate the namiedata argument to both vfs_mount and vfs_omount.
It was originally there to save stack space.  A few places abused
it to get hold of some credentials to pass around.  Effectively
it is unused.

Reorganize the root filesystem selection code.
2004-07-30 22:08:52 +00:00
Poul-Henning Kamp
d634f69316 Remove global variable rootdevs and rootvp, they are unused as such.
Add local rootvp variables as needed.

Remove checks for miniroot's in the swappartition.  We never did that
and most of the filesystems could never be used for that, but it had
still been copy&pasted all over the place.
2004-07-28 20:21:04 +00:00
Alfred Perlstein
f257b7a54b Make VFS_ROOT() and vflush() take a thread argument.
This is to allow filesystems to decide based on the passed thread
which vnode to return.
Several filesystems used curthread, they now use the passed thread.
2004-07-12 08:14:09 +00:00
Poul-Henning Kamp
bffd1b7af4 Remove "register" keyword and trailing white space. 2004-07-03 16:56:45 +00:00
Poul-Henning Kamp
f3732fd15b Second half of the dev_t cleanup.
The big lines are:
	NODEV -> NULL
	NOUDEV -> NODEV
	udev_t -> dev_t
	udev2dev() -> findcdev()

Various minor adjustments including handling of userland access to kernel
space struct cdev etc.
2004-06-17 17:16:53 +00:00
Poul-Henning Kamp
89c9c53da0 Do the dreaded s/dev_t/struct cdev */
Bump __FreeBSD_version accordingly.
2004-06-16 09:47:26 +00:00
Warner Losh
f36cfd49ad Remove advertising clause from University of California Regent's
license, per letter dated July 22, 1999 and email from Peter Wemm,
Alan Cox and Robert Watson.

Approved by: core, peter, alc, rwatson
2004-04-07 20:46:16 +00:00
Poul-Henning Kamp
651b11eaf2 Remove unused second arg to vfinddev().
Don't call addaliasu() on VBLK nodes.
2004-03-11 16:33:11 +00:00
Tim J. Robbins
f71cc8681b Fix comment containing vop_readdir_args contents: a_cookies is really
u_long ** not u_long *.
2004-02-23 01:43:00 +00:00
Tim J. Robbins
224f219b31 cookies is an array of u_long, not u_int, so MALLOC() it accordingly.
Allocating it with the wrong size could have caused corruption on
64-bit architectures.
2004-02-23 01:40:46 +00:00
Alexander Kabaev
6bd39fe978 Spell magic '16' number as IO_SEQSHIFT. 2004-01-19 20:03:43 +00:00
Poul-Henning Kamp
2c18019f14 DuH!
bp->b_iooffset (the spot on the disk), not bp->b_offset (the offset in
the file)
2003-10-18 14:10:28 +00:00
Poul-Henning Kamp
f14676dc6f Initialize b_offset before calling VOP_SPECSTRATEGY() 2003-10-18 11:08:33 +00:00
Jeff Roberson
7bfaa956e8 - Don't cache_purge() in cd9660_reclaim. vclean() does it for us so
this is redundant.
2003-10-05 02:45:36 +00:00
Max Khon
c4f02a891f - Support for multibyte charsets in LIBICONV.
- CD9660_ICONV, NTFS_ICONV and MSDOSFS_ICONV kernel options
(with corresponding modules).
- kiconv(3) for loadable charset conversion tables support.

Submitted by:	Ryuichiro Imura <imura@ryu16.org>
2003-09-26 20:26:25 +00:00
Poul-Henning Kamp
29796304f8 Do not call VOP_BMAP() on our own vnodes.
It is particularly silly when all it does is a minor piece of math.
2003-08-17 23:00:30 +00:00
John Baldwin
8b149b5131 Consistently use the BSD u_int and u_short instead of the SYSV uint and
ushort.  In most of these files, there was a mixture of both styles and
this change just makes them self-consistent.

Requested by:	bde (kern_ktrace.c)
2003-08-07 15:04:27 +00:00
Poul-Henning Kamp
a8d43c90af Add a "int fd" argument to VOP_OPEN() which in the future will
contain the filedescriptor number on opens from userland.

The index is used rather than a "struct file *" since it conveys a bit
more information, which may be useful to in particular fdescfs and /dev/fd/*

For now pass -1 all over the place.
2003-07-26 07:32:23 +00:00
John-Mark Gurney
4119b6e581 change dev_t to struct cdev * to match ufs. This fixes fstat for cd9660
and msdosfs.

Reviewed by:	bde
2003-06-24 22:11:20 +00:00
Poul-Henning Kamp
cefb5754dd Add the same KASSERT to all VOP_STRATEGY and VOP_SPECSTRATEGY implementations
to check that the buffer points to the correct vnode.
2003-06-15 18:53:00 +00:00
Poul-Henning Kamp
7652131bee Initialize struct vfsops C99-sparsely.
Submitted by:   hmp
Reviewed by:	phk
2003-06-12 20:48:38 +00:00
David E. O'Brien
8c9bbf484a Use __FBSDID(). 2003-06-11 00:34:37 +00:00
Poul-Henning Kamp
1e18ce425e emove unused variable(s).
Found by:       FlexeLint
2003-05-31 20:19:13 +00:00
Alexander Kabaev
c162e9c2eb Rename vfs_stdsync function to vfs_stdnosync which matches more
closely what function is really doing. Update all existing consumers
to use the new name.

Introduce a new vfs_stdsync function, which iterates over mount
point's vnodes and call FSYNC on each one of them in turn.

Make nwfs and smbfs use this new function instead of rolling their
own identical sync implementations.

Reviewed by:	jeff
2003-03-11 22:15:10 +00:00
Nate Lawson
99648386d3 Finish cleanup of vprint() which was begun with changing v_tag to a string.
Remove extraneous uses of vop_null, instead defering to the default op.
Rename vnode type "vfs" to the more descriptive "syncer".
Fix formatting for various filesystems that use vop_print.
2003-03-03 19:15:40 +00:00
Dag-Erling Smørgrav
8994a245e0 Clean up whitespace, s/register //, refrain from strong urge to ANSIfy. 2003-03-02 15:56:49 +00:00
Dag-Erling Smørgrav
c952458814 uiomove-related caddr_t -> void * (just the low-hanging fruit) 2003-03-02 15:50:23 +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
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
f5b11b6e2d Temporarily introduce a new VOP_SPECSTRATEGY operation while I try
to sort out disk-io from file-io in the vm/buffer/filesystem space.

The intent is to sort VOP_STRATEGY calls into those which operate
on "real" vnodes and those which operate on VCHR vnodes.  For
the latter kind, the call will be changed to VOP_SPECSTRATEGY,
possibly conditionally for those places where dual-use happens.

Add a default VOP_SPECSTRATEGY method which will call the normal
VOP_STRATEGY.  First time it is called it will print debugging
information.  This will only happen if a normal vnode is passed
to VOP_SPECSTRATEGY by mistake.

Add a real VOP_SPECSTRATEGY in specfs, which does what VOP_STRATEGY
does on a VCHR vnode today.

Add a new VOP_STRATEGY method in specfs to catch instances where
the conversion to VOP_SPECSTRATEGY has not yet happened.  Handle
the request just like we always did, but first time called print
debugging information.

Apart up to two instances of console messages per boot, this amounts
to a glorified no-op commit.

If you get any of the messages on your console I would very much
like a copy of them mailed to phk@freebsd.org
2003-01-04 22:10:36 +00:00
Poul-Henning Kamp
c6e3ae999b Since Jeffr made the std* functions the default in rev 1.63 of
kern/vfs_defaults.c it is wrong for the individual filesystems to use
the std* functions as that prevents override of the default.

Found by:       src/tools/tools/vop_table
2003-01-04 08:47:19 +00:00
Peter Wemm
fed044f22a Unbreak MNT_UPDATE when running with cd as root. Detect mountroot by
checking for "path == NULL" (like ffs) rather than MNT_ROOT.  Otherwise
when you try and do an update or mountd does an NFS export, the remount
fails because the code tries to mount a fresh rootfs and gets an EBUSY.
The same bug is in 4.x (which is where I found it).

Sanity check by: mux
2002-11-02 20:16:55 +00:00
Poul-Henning Kamp
bc9d8a9a37 Fix comments and one resulting code confusion about the type of the
"command" argument to VOP_IOCTL.

Spotted by:	FlexeLint.
2002-10-16 08:04:11 +00:00
Kirk McKusick
a5b65058d5 Regularize the vop_stdlock'ing protocol across all the filesystems
that use it. Specifically, vop_stdlock uses the lock pointed to by
vp->v_vnlock. By default, getnewvnode sets up vp->v_vnlock to
reference vp->v_lock. Filesystems that wish to use the default
do not need to allocate a lock at the front of their node structure
(as some still did) or do a lockinit. They can simply start using
vn_lock/VOP_UNLOCK. Filesystems that wish to manage their own locks,
but still use the vop_stdlock functions (such as nullfs) can simply
replace vp->v_vnlock with a pointer to the lock that they wish to
have used for the vnode. Such filesystems are responsible for
setting the vp->v_vnlock back to the default in their vop_reclaim
routine (e.g., vp->v_vnlock = &vp->v_lock).

In theory, this set of changes cleans up the existing filesystem
lock interface and should have no function change to the existing
locking scheme.

Sponsored by:	DARPA & NAI Labs.
2002-10-14 03:20:36 +00:00
Mike Barcroft
2b7f24d210 Change iov_base's type from char *' to the standard void *'. All
uses of iov_base which assume its type is `char *' (in order to do
pointer arithmetic) have been updated to cast iov_base to `char *'.
2002-10-11 14:58:34 +00:00
Poul-Henning Kamp
37c841831f Be consistent about "static" functions: if the function is marked
static in its prototype, mark it static at the definition too.

Inspired by:    FlexeLint warning #512
2002-09-28 17:15:38 +00:00