Commit Graph

867 Commits

Author SHA1 Message Date
John Baldwin
797c3dba25 Fix a mntvnode and vnode interlock reversal. 2001-06-28 03:52:04 +00:00
John Baldwin
805d90f763 Protect the mnt_vnode list with the mntvnode lock. 2001-06-28 03:50:17 +00:00
Dag-Erling Smørgrav
56fe60b131 #if 0 out pfs_null() to silence the warning about it not being referenced. 2001-06-15 12:30:46 +00:00
Peter Wemm
70439d2750 Fix warning: 568: warning: `portal_badop' defined but not used 2001-06-15 00:38:03 +00:00
Peter Wemm
f14f48a226 Fix warning (exposed NetBSD code):
94: warning: `ntfs_bmap' declared `static' but never defined
2001-06-15 00:32:07 +00:00
Peter Wemm
e75a45be56 Fix warnings (mostly harmless, due to struct bio being embedded in buf):
738: warning: passing arg 1 of `biodone' from incompatible pointer type
745: warning: passing arg 1 of `biodone' from incompatible pointer type
2001-06-15 00:30:27 +00:00
Peter Wemm
42c187b77e Fix warning: 552: warning: `fdesc_badop' defined but not used 2001-06-15 00:27:21 +00:00
Peter Wemm
13f961dbfd Warning fix: coda_fbsd.c:113: warning: unused variable `ret' 2001-06-15 00:02:27 +00:00
Boris Popov
4587152a71 Coda do not call vop_defaultop(), so add nesessary calls for VM objects.
Submitted by:	Greg Troxel <gdt@ir.bbn.com>
MFC after:	2 days
2001-06-14 09:28:30 +00:00
Matt Jacob
aa56d911a6 the last argument to copyinstr is of t ype size_t, not u_int 2001-06-13 18:58:11 +00:00
Peter Wemm
f41325db5f With this commit, I hereby pronounce gensetdefs past its use-by date.
Replace the a.out emulation of 'struct linker_set' with something
a little more flexible.  <sys/linker_set.h> now provides macros for
accessing elements and completely hides the implementation.

The linker_set.h macros have been on the back burner in various
forms since 1998 and has ideas and code from Mike Smith (SET_FOREACH()),
John Polstra (ELF clue) and myself (cleaned up API and the conversion
of the rest of the kernel to use it).

The macros declare a strongly typed set.  They return elements with the
type that you declare the set with, rather than a generic void *.

For ELF, we use the magic ld symbols (__start_<setname> and
__stop_<setname>).  Thanks to Richard Henderson <rth@redhat.com> for the
trick about how to force ld to provide them for kld's.

For a.out, we use the old linker_set struct.

NOTE: the item lists are no longer null terminated.  This is why
the code impact is high in certain areas.

The runtime linker has a new method to find the linker set
boundaries depending on which backend format is in use.

linker sets are still module/kld unfriendly and should never be used
for anything that may be modular one day.

Reviewed by:	eivind
2001-06-13 10:58:39 +00:00
Dag-Erling Smørgrav
21ceb6efa2 For some reason, though the module builds just fine without <sys/lock.h>,
LINT fails to build without it.
2001-06-11 15:04:48 +00:00
Dag-Erling Smørgrav
b27acc8dd1 Bail out if the fill function failed. 2001-06-10 21:39:01 +00:00
Dag-Erling Smørgrav
7005ce8a5f Whoops, some of my test code snuck in here. 2001-06-10 21:37:11 +00:00
Dag-Erling Smørgrav
497806b394 Argh. Fix braino in previous commit. 2001-06-10 18:54:04 +00:00
Dag-Erling Smørgrav
1828efef8d Add a 'flags' argument to the PFS_PROCDIR macro. 2001-06-10 18:52:55 +00:00
Dag-Erling Smørgrav
649ad985c9 Add support for process-dependent directories. This means that save for
the lack of a man page, pseudofs is mostly complete now.
2001-06-10 18:39:21 +00:00
Dag-Erling Smørgrav
1e4ebf4e8d Blah, not my day. This file needs <sys/mutex.h> now. 2001-06-10 10:42:55 +00:00
Dag-Erling Smørgrav
ec09e7f25c Remember to unlock the process pfind() returns. 2001-06-10 10:42:01 +00:00
Dag-Erling Smørgrav
49fa664f4e Add missing #include of <sys/mutex.h>. 2001-06-10 10:36:16 +00:00
Dag-Erling Smørgrav
31f73b3fcd Catch up with the change in sbuf_new's prototype. 2001-06-10 10:34:21 +00:00
Jonathan Lemon
2247e23a97 The kq write filter was hooked up to the wrong socket, and thus was
not behaving correctly.  Fix by attaching to the correct socket.

Also call so{rw}wakeup in addition to the fifo wakeup, so that any
kqfilters attached to the socket buffer get poked.
2001-06-06 17:38:36 +00:00
Seigo Tanimura
326f419bb9 Lock VM Giant prior to locking a vm map.
Spotted by:	Daniel Rock <D.Rock@t-online.de>
Tested by:	David Wolfskill <david@catwhisker.org>,
		Sean Eric Fagan <sef@kithrup.com>
2001-06-06 04:13:11 +00:00
Shafeeq Sinnamohideen
ba8aae1baf Now works again and as a module and with devfs.
Used the bpf & tun drivers as examples as to what is necessary for devfs.
2001-06-05 19:45:16 +00:00
Brian Somers
51716196a4 Support /dev/tun cloning. Ansify if_tun.c while I'm there.
Only tun0 -> tun32767 may now be opened as struct ifnet's if_unit
is a short.

It's now possible to open /dev/tun and get a handle back for an available
tun device (use devname to find out what you got).

The implementation uses rman by popular demand (and against my judgement)
to track opened devices and uses the new dev_depends() to ensure that
all make_dev()d devices go away before the module is unloaded.

Reviewed by:	phk
2001-06-01 15:51:10 +00:00
Ruslan Ermilov
4ccd754686 - VFS_SET(msdos) -> VFS_SET(msdosfs)
- msdos.ko -> msdosfs.ko
- mount_msdos(8) -> mount_msdosfs(8)
- "msdos" -> "msdosfs" compatibility glue in mount(8)
2001-06-01 10:57:26 +00:00
Poul-Henning Kamp
e33457d7eb Don't copy the trailing zero in readlink, it confuses namei().
PR:		27656
2001-05-26 20:07:57 +00:00
Ruslan Ermilov
8a8402d3a5 - sys/n[tw]fs moved to sys/fs/n[tw]fs
- /usr/include/n[tw]fs moved to /usr/include/fs/n[tw]fs
2001-05-26 11:57:45 +00:00
Poul-Henning Kamp
3344c5a17e Create a general facility for making dev_t's depend on another
dev_t.  The dev_depends(dev_t, dev_t) function is for tying them
to each other.

When destroy_dev() is called on a dev_t, all dev_t's depending
on it will also be destroyed (depth first order).

Rewrite the make_dev_alias() to use this dependency facility.

kern/subr_disk.c:
Make the disk mini-layer use dependencies to make sure all
relevant dev_t's are removed when the disk disappears.

Make the disk mini-layer precreate some magic sub devices
which the disk/slice/label code expects to be there.

kern/subr_disklabel.c:
Remove some now unneeded variables.

kern/subr_diskmbr.c:
Remove some ancient, commented out code.

kern/subr_diskslice.c:
Minor cleanup.  Use name from dev_t instead of dsname()
2001-05-26 08:27:58 +00:00
Robert Watson
b1fc0ec1a7 o Merge contents of struct pcred into struct ucred. Specifically, add the
real uid, saved uid, real gid, and saved gid to ucred, as well as the
  pcred->pc_uidinfo, which was associated with the real uid, only rename
  it to cr_ruidinfo so as not to conflict with cr_uidinfo, which
  corresponds to the effective uid.
o Remove p_cred from struct proc; add p_ucred to struct proc, replacing
  original macro that pointed.
  p->p_ucred to p->p_cred->pc_ucred.
o Universally update code so that it makes use of ucred instead of pcred,
  p->p_ucred instead of p->p_pcred, cr_ruidinfo instead of p_uidinfo,
  cr_{r,sv}{u,g}id instead of p_*, etc.
o Remove pcred0 and its initialization from init_main.c; initialize
  cr_ruidinfo there.
o Restruction many credential modification chunks to always crdup while
  we figure out locking and optimizations; generally speaking, this
  means moving to a structure like this:
        newcred = crdup(oldcred);
        ...
        p->p_ucred = newcred;
        crfree(oldcred);
  It's not race-free, but better than nothing.  There are also races
  in sys_process.c, all inter-process authorization, fork, exec, and
  exit.
o Remove sigio->sio_ruid since sigio->sio_ucred now contains the ruid;
  remove comments indicating that the old arrangement was a problem.
o Restructure exec1() a little to use newcred/oldcred arrangement, and
  use improved uid management primitives.
o Clean up exit1() so as to do less work in credential cleanup due to
  pcred removal.
o Clean up fork1() so as to do less work in credential cleanup and
  allocation.
o Clean up ktrcanset() to take into account changes, and move to using
  suser_xxx() instead of performing a direct uid==0 comparision.
o Improve commenting in various kern_prot.c credential modification
  calls to better document current behavior.  In a couple of places,
  current behavior is a little questionable and we need to check
  POSIX.1 to make sure it's "right".  More commenting work still
  remains to be done.
o Update credential management calls, such as crfree(), to take into
  account new ruidinfo reference.
o Modify or add the following uid and gid helper routines:
      change_euid()
      change_egid()
      change_ruid()
      change_rgid()
      change_svuid()
      change_svgid()
  In each case, the call now acts on a credential not a process, and as
  such no longer requires more complicated process locking/etc.  They
  now assume the caller will do any necessary allocation of an
  exclusive credential reference.  Each is commented to document its
  reference requirements.
o CANSIGIO() is simplified to require only credentials, not processes
  and pcreds.
o Remove lots of (p_pcred==NULL) checks.
o Add an XXX to authorization code in nfs_lock.c, since it's
  questionable, and needs to be considered carefully.
o Simplify posix4 authorization code to require only credentials, not
  processes and pcreds.  Note that this authorization, as well as
  CANSIGIO(), needs to be updated to use the p_cansignal() and
  p_cansched() centralized authorization routines, as they currently
  do not take into account some desirable restrictions that are handled
  by the centralized routines, as well as being inconsistent with other
  similar authorization instances.
o Update libkvm to take these changes into account.

Obtained from:	TrustedBSD Project
Reviewed by:	green, bde, jhb, freebsd-arch, freebsd-audit
2001-05-25 16:59:11 +00:00
Ruslan Ermilov
1166fb516b - sys/msdosfs moved to sys/fs/msdosfs
- msdos.ko renamed to msdosfs.ko
- /usr/include/msdosfs moved to /usr/include/fs/msdosfs
2001-05-25 08:14:14 +00:00
Ruslan Ermilov
c7b23e0fb4 Actually rename FDESC, PORTAL, UMAP and UNION file systems.
OK'ed by:	bp
2001-05-24 15:20:11 +00:00
Ruslan Ermilov
c99d12581a mount_umap(8) -> mount_umapfs(8). 2001-05-24 13:20:41 +00:00
Ruslan Ermilov
57a523ae6b mount_null(8) -> mount_nullfs(8). 2001-05-24 13:17:47 +00:00
John Baldwin
c7f52620e0 Don't acquire/release Giant around some of the places that need it in
spec_getpages().  Instead, assert that Giant is held by the caller.
2001-05-23 22:20:29 +00:00
Poul-Henning Kamp
5a9300c451 Change the way deletes are managed in DEVFS.
This fixes a number of warnings relating to removed cloned devices.

It also makes it possible to recreate deleted devices with
mknod(2).  The major/minor arguments are ignored.
2001-05-23 17:48:20 +00:00
Ruslan Ermilov
99d300a1ec - FDESC, FIFO, NULL, PORTAL, PROC, UMAP and UNION file
systems were repo-copied from sys/miscfs to sys/fs.

- Renamed the following file systems and their modules:
  fdesc -> fdescfs, portal -> portalfs, union -> unionfs.

- Renamed corresponding kernel options:
  FDESC -> FDESCFS, PORTAL -> PORTALFS, UNION -> UNIONFS.

- Install header files for the above file systems.

- Removed bogus -I${.CURDIR}/../../sys CFLAGS from userland
  Makefiles.
2001-05-23 09:42:29 +00:00
John Baldwin
2178ff8b9f Sort includes from previous commit. 2001-05-21 23:19:50 +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
Boris Popov
10fa1684ed Currently there is no way to tell if write operation invoked via
vn_start_write() on the given vnode will be successful. VOP_LEASE() may
help to solve this problem, but its return value ignored nearly everywhere.
For now just assume that the missing upper layer on write means insufficient
access rights (which is correct for most cases).
2001-05-18 07:43:13 +00:00
Boris Popov
f3d1ec67b2 VOP getwritemount() can be invoked on vnodes with VFREE flag set (used in
snapshots code). At this point upper vp may not exist.
2001-05-17 04:58:25 +00:00
Boris Popov
3413421bda Use vop_*vobject() VOPs to get reference to VM object from upper or lower fs. 2001-05-17 04:52:57 +00:00
Boris Popov
9dbd7336ee Do not leave an extra reference on vnode.
PR:		kern/27250
Submitted by:	"Vladimir B. Grebenschikov" <vova@express.ru>
MFC after:	2 weeks
2001-05-17 04:40:01 +00:00
Ian Dowse
0864ef1e8a Change the second argument of vflush() to an integer that specifies
the number of references on the filesystem root vnode to be both
expected and released. Many filesystems hold an extra reference on
the filesystem root vnode, which must be accounted for when
determining if the filesystem is busy and then released if it isn't
busy. The old `skipvp' approach required individual filesystem
xxx_unmount functions to re-implement much of vflush()'s logic to
deal with the root vnode.

All 9 filesystems that hold an extra reference on the root vnode
got the logic wrong in the case of forced unmounts, so `umount -f'
would always fail if there were any extra root vnode references.
Fix this issue centrally in vflush(), now that we can.

This commit also fixes a vnode reference leak in devfs, which could
result in idle devfs filesystems that refuse to unmount.

Reviewed by:	phk, bp
2001-05-16 18:04:37 +00:00
Poul-Henning Kamp
f73cbde4cf After a successfull poll of the cloning functions, match on the
returned dev_t rather than the original name.

This allows cloning from one name to another which is useful for
/dev/tty and later for the pty's.
2001-05-14 08:20:46 +00:00
Poul-Henning Kamp
ab9f3b292e Convert DEVFS from an "opt-in" to an "opt-out" option.
If for some reason DEVFS is undesired, the "NODEVFS" option is
needed now.

Pending any significant issues, DEVFS will be made mandatory in
-current on july 1st so that we can start reaping the full
benefits of having it.
2001-05-13 20:52:40 +00:00
John Baldwin
b012b205a7 GC prototype for procfs_bmap() missed during a previous commit. 2001-05-11 23:37:37 +00:00
Poul-Henning Kamp
6bd2ea83ef Remove unneeded devfs_badop()
Noticed by:	rwatson
2001-05-06 17:40:34 +00:00
Boris Popov
d759827bd9 Convert vnode_pager_freepage() to vm_free_page().
Forgotten by:	alfred
2001-05-03 09:00:54 +00:00
Poul-Henning Kamp
a62615e59b Implement vop_std{get|put}pages() and add them to the default vop[].
Un-copy&paste all the VOP_{GET|PUT}PAGES() functions which do nothing but
the default.
2001-05-01 08:34:45 +00:00