Commit Graph

194 Commits

Author SHA1 Message Date
Doug Rabson
ecbb00a262 This commit fixes various 64bit portability problems required for
FreeBSD/alpha.  The most significant item is to change the command
argument to ioctl functions from int to u_long.  This change brings us
inline with various other BSD versions.  Driver writers may like to
use (__FreeBSD_version == 300003) to detect this change.

The prototype FreeBSD/alpha machdep will follow in a couple of days
time.
1998-06-07 17:13:14 +00:00
Peter Wemm
4152886f7a For the on-the-wire protocol, u_long -> u_int32_t; long -> int32_t;
int -> int32_t; u_short -> u_int16_t.  Also, use mode_t instead of u_short
for storing modes (mode_t is a u_int16_t).

Obtained from: NetBSD
1998-05-31 20:09:01 +00:00
Peter Wemm
75c6892c16 Support 'mount -u' remounts. This may require disconnecting and rebinding
the socket.  Certain mode changes are not allowed.

Obtained from:  NetBSD
1998-05-31 19:49:31 +00:00
Peter Wemm
261114d95c Cut-n-paste glitch 1998-05-31 19:43:34 +00:00
Peter Wemm
71c667c91b Prototype support for selectively allowing non-reserved ports on a per
export basis.  Needs userland support yet.

Obtained from:  NetBSD
1998-05-31 19:16:08 +00:00
Peter Wemm
a422fed096 Hide whiteouts from NFS, since the protocol doesn't support them.
Obtained from:  NetBSD
1998-05-31 19:10:52 +00:00
Peter Wemm
c03d64df19 NetBSD has a comment that Solaris 2.5 doesn't do verifiers correctly,
we have weakened this test already for Digital Unix, so it may be enough
for Solaris.  It needs to be checked again.

Obtained from: NetBSD
1998-05-31 19:07:47 +00:00
Peter Wemm
13b9f88167 Don't pass a second copy of the uid/gid in with the v2/v3 sattr structures,
it just makes more work.  We pass a copy of the uid/gid with the
credentials.  (although, this may need to be revisited if a non AUTHUNIX
authentication method (such as NFSKERB) ever gets implemented).

Obtained from:  NetBSD
1998-05-31 19:00:19 +00:00
Peter Wemm
d0e443aa3a Use the new SB_UPCALL flag,
Obtained from:  NetBSD (but I changed the flag clear order in case).
1998-05-31 18:46:06 +00:00
Peter Wemm
e9156323b8 Don't try and free mrep twice on some error conditions.
Obtained from:  NetBSD
1998-05-31 18:19:43 +00:00
Peter Wemm
6301c8c330 #ifdef a diagnostic panic, plus another missed costmetic change.
Obtained from:  NetBSD
1998-05-31 18:11:03 +00:00
Peter Wemm
1da42e389c We have gained 2 more errno's, add them to the NFSv2 mapping table. 1998-05-31 18:09:18 +00:00
Peter Wemm
946010a5a4 Missed a cosmetic change that the other BSD's have. 1998-05-31 18:08:09 +00:00
Peter Wemm
535fa8520e oops, nfs_msg() is called from client code too. 1998-05-31 18:06:07 +00:00
Peter Wemm
4a5f4c547e When we can't reconnect a socket, don't forget to unlock before retrying
or we can deadlock.

Obtained from:  NetBSD
1998-05-31 18:02:56 +00:00
Peter Wemm
6bea90a1ee Don't log zero length reads, this can happen during normal operation.
Obtained from: NetBSD
1998-05-31 18:00:46 +00:00
Peter Wemm
6c1a945540 Consider for readdir chunk sizes when tuning socket buffer reservations.
Obtained from:  NetBSD
1998-05-31 17:57:43 +00:00
Peter Wemm
dde4499fec Refuse READDIR / READDIRPLUS rpc's for non-directories
Obtained from: NetBSD
1998-05-31 17:54:18 +00:00
Peter Wemm
c489c83e4c Some const's
Obtained from: NetBSD
1998-05-31 17:48:07 +00:00
Peter Wemm
e8cf20c8db NFS Jumbo commit part 1. Cosmetic and structural changes only. The aim
of this part of commits is to minimize unnecessary differences between
the other NFS's of similar origin.  Yes, there are gratuitous changes here
that the style folks won't like, but it makes the catch-up less difficult.
1998-05-31 17:27:58 +00:00
Peter Wemm
7c1c33a7dd When using NFSv3, use the remote server's idea of the maximum file size
rather than assuming 2^64.  It may not like files that big. :-)
On the nfs server, calculate and report the max file size as the point
that the block numbers in the cache would turn negative.
(ie: 1099511627775 bytes (1TB)).

One of the things I'm worried about however, is that directory offsets
are really cookies on a NFSv3 server and can be rather large, especially
when/if the server generates the opaque directory cookies by using a local
filesystem offset in what comes out as the upper 32 bits of the 64 bit
cookie.  (a server is free to do this, it could save byte swapping
depending on the native 64 bit byte order)

Obtained from:	NetBSD
1998-05-30 16:33:58 +00:00
Peter Wemm
0d7d0fcf29 Convert a couple of large allocations to use zones rather than malloc
for better packing.  This means that we can choose better values for the
various hash entries without having to try and get it all to fit within
an artificial power of two limit for malloc's sake.
1998-05-24 14:41:56 +00:00
Peter Wemm
4204769d9e Only ignore "owner" permissions selectively rather than always. In some
cases we ignore it (eg: read/write) to maintain chmod-after-open semantics
but in other cases we do care, eg: creating files, access() etc.  Never
ignore errors from VOP_ACCESS() on immutable files.

This apparently comes from BSDI (from Keith Bostic) via NetBSD.

PR:		5148
Submitted by:	Yoshiro MIHIRA <sanpei@yy.cs.keio.ac.jp>
1998-05-20 09:05:48 +00:00
Peter Wemm
fe6c0d4599 Allow control of the attribute cache timeouts at mount time.
We had run out of bits in the nfs mount flags, I have moved the internal
state flags into a seperate variable.  These are no longer visible via
statfs(), but I don't know of anything that looks at them.
1998-05-19 07:11:27 +00:00
Bruce Evans
bf57f6f9b3 Get timespecs directly instead of via timevals. 1998-05-16 15:11:24 +00:00
Mike Smith
7be2d30077 In the words of the submitter:
---------
Make callers of namei() responsible for releasing references or locks
instead of having the underlying filesystems do it.  This eliminates
redundancy in all terminal filesystems and makes it possible for stacked
transport layers such as umapfs or nullfs to operate correctly.

Quality testing was done with testvn, and lat_fs from the lmbench suite.

Some NFS client testing courtesy of Patrik Kudo.

vop_mknod and vop_symlink still release the returned vpp.  vop_rename
still releases 4 vnode arguments before it returns.  These remaining cases
will be corrected in the next set of patches.
---------

Submitted by:	Michael Hancock <michaelh@cet.co.jp>
1998-05-07 04:58:58 +00:00
Poul-Henning Kamp
2f5f6b74ca Use random() to find our initial xid. 1998-04-06 11:41:07 +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
303b270b0a Staticize. 1998-02-09 06:11:36 +00:00
Eivind Eklund
0b08f5f737 Back out DIAGNOSTIC changes. 1998-02-06 12:14:30 +00:00
Eivind Eklund
47cfdb166d Turn DIAGNOSTIC into a new-style option. 1998-02-04 22:34:03 +00:00
Bruce Evans
e7a5897899 Added #include of <sys/queue.h> so that this file is more "self"-sufficent. 1998-02-03 22:19:35 +00:00
Bruce Evans
9cf2c3e77a Forward declare some structs so that this file is more self-sufficient. 1998-02-03 21:52:02 +00:00
Bruce Evans
bc3de552ad Moved declaration of `union nethostadr' outside of the KERNEL section,
to give pollution compatible with <nfs/nqfs.h>.  At least mount_nfs.c
previously had to #define KERNEL before including <nfs/nfs.h> to get
this pollution, but this gave other pollution.

Moved comment about NFSINT_SIGMASK to immediately before the code that
it applies to.
1998-02-01 21:23:29 +00:00
John Dyson
eaf13dd73a Change the busy page mgmt, so that when pages are freed, they
MUST be PG_BUSY.  It is bogus to free a page that isn't busy,
because it is in a state of being "unavailable" when being
freed.  The additional advantage is that the page_remove code
has a better cross-check that the page should be busy and
unavailable for other use.  There were some minor problems
with the collapse code, and this plugs those subtile "holes."

Also, the vfs_bio code wasn't checking correctly for PG_BUSY
pages.  I am going to develop a more consistant scheme for
grabbing pages, busy or otherwise.  For now, we are stuck
with the current morass.
1998-01-31 11:56:53 +00:00
John Dyson
2be70f79f6 Lots of improvements, including restructring the caching and management
of vnodes and objects.  There are some metadata performance improvements
that come along with this.  There are also a few prototypes added when
the need is noticed.  Changes include:

1) Cleaning up vref, vget.
2) Removal of the object cache.
3) Nuke vnode_pager_uncache and friends, because they aren't needed anymore.
4) Correct some missing LK_RETRY's in vn_lock.
5) Correct the page range in the code for msync.

Be gentle, and please give me feedback asap.
1997-12-29 00:25:11 +00:00
Bruce Evans
675ea6f083 Unspammed nested include of <vm/vm_zone.h>. 1997-12-27 02:56:39 +00:00
Bruce Evans
3b1e500f27 Added a used include.
Fixed a gratuitous ANSIism and nearby KNF violations.
1997-12-20 00:25:01 +00:00
Bruce Evans
638493a3c4 Don't call malloc(..., M_WAITOK) at splnet(). Doing so is often
a mistake (since softnet interrupts may occur if malloc() waits),
and doing it harmlessly but unnecessarily here interfered with
detection of the mistaken cases.
1997-11-24 14:18:00 +00:00
Poul-Henning Kamp
4a11ca4e29 Remove a bunch of variables which were unused both in GENERIC and LINT.
Found by:	-Wunused
1997-11-07 08:53:44 +00:00
Poul-Henning Kamp
cb226aaa62 Move the "retval" (3rd) parameter from all syscall functions and put
it in struct proc instead.

This fixes a boatload of compiler warning, and removes a lot of cruft
from the sources.

I have not removed the /*ARGSUSED*/, they will require some looking at.

libkvm, ps and other userland struct proc frobbing programs will need
recompiled.
1997-11-06 19:29:57 +00:00
Bruce Evans
55b211e3af Removed unused #includes. 1997-10-28 15:59:26 +00:00
Bruce Evans
3b67b033e1 Don't #include <nfs/nfs.h> in <nfs/nfs_node.h> if KERNEL is defined.
Fixed everything that depended on the nested include.
1997-10-28 14:06:25 +00:00
Poul-Henning Kamp
5ebdb94a1b Always initialize the syscall vectors for our "private" syscalls (not
just in the LKM case).
Plug nqnfs_vop_lease_check directly into the default_vnodeop_p table.
1997-10-26 20:13:52 +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
John Dyson
99448ed11d Change the M_NAMEI allocations to use the zone allocator. This change
plus the previous changes to use the zone allocator decrease the useage
of malloc by half.  The Zone allocator will be upgradeable to be able
to use per CPU-pools, and has more intelligent usage of SPLs.  Additionally,
it has reasonable stats gathering capabilities, while making most calls
inline.
1997-09-21 04:24:27 +00:00
Poul-Henning Kamp
ec1b5c319d Remove a couple of stubborn NetBSD #if's. 1997-09-10 20:22:32 +00:00
Poul-Henning Kamp
07b2d0aaa3 unifdef -U__NetBSD__ -D__FreeBSD__ 1997-09-10 19:52:27 +00:00
Bruce Evans
4d1d4912ae Added used #include - don't depend on <sys/mbuf.h> including
<sys/malloc.h> (unless we only use the bogusly shared M*WAIT flags).
1997-09-02 01:19:47 +00:00
Garrett Wollman
57bf258e3d Fix all areas of the system (or at least all those in LINT) to avoid storing
socket addresses in mbufs.  (Socket buffers are the one exception.)  A number
of kernel APIs needed to get fixed in order to make this happen.  Also,
fix three protocol families which kept PCBs in mbufs to not malloc them
instead.  Delete some old compatibility cruft while we're at it, and add
some new routines in the in_cksum family.
1997-08-16 19:16:27 +00:00
Bruce Evans
1fd0b0588f Removed unused #includes. 1997-08-02 14:33:27 +00:00
Doug Rabson
abfbc4005f Correct some dumb mistakes in the WebNFS stuff.
Submitted by:	bde
1997-07-22 15:35:57 +00:00
Doug Rabson
c4b3a97040 Allow NULL cookie verifiers for non-NULL offsets. This is needed for
Digital Unix boxes since they appear to always send null verifiers.
1997-07-22 15:35:15 +00:00
Doug Rabson
e775608178 Merge WebNFS changes from NetBSD.
Obtained from:	NetBSD
1997-07-16 09:06:30 +00:00
Tor Egge
932c8934e8 Clear nfs_iodwant[myiod] when the nfsiod process exits due to a signal. 1997-06-25 21:07:26 +00:00
Bruce Evans
f361d28a2c Don't require superuser privileges for creating fifos. The v2 case was
broken when support for v3 was introduced in rev.1.16.  The v3 case has
always been broken in FreeBSD.

Should be in 2.2.

PR:		3838
1997-06-14 11:19:35 +00:00
Doug Rabson
7d6b68c4de Various fixes from NetBSD:
Use u_int for rpc procedure numbers.
	Some fixes to NQNFS.
	A rare NULL pointer dereference.
	Ignore NFSMNT_NOCONN for TCP mounts.

Obtained from:	NetBSD
1997-06-03 17:22:47 +00:00
Doug Rabson
d1e963a50e Implement the async mount option for NFSv3. This makes NFS pretend that all
writes sent to the server were synchronous and therefore no commits are
needed.  This is the same as the vfs.nfs.async variable on the server but
allows each client to choose whether to work this way.

Also make the vfs.nfs.async variable do the 'right' thing for NFSv3, i.e.
pretend that the write was synchronous.
1997-06-03 13:56:55 +00:00
Doug Rabson
32ad9cb531 Fix a few bugs with NFS and mmap caused by NFS' use of b_validoff
and b_validend.  The changes to vfs_bio.c are a bit ugly but hopefully
can be tidied up later by a slight redesign.

PR:		kern/2573, kern/2754, kern/3046 (possibly)
Reviewed by:	dyson
1997-05-19 14:36:56 +00:00
Doug Rabson
cb934d56d1 Don't keep addresses in mbuf chains. This should simplify the next round
of network changes from Garret.

Reviewed by:	Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
1997-05-13 17:25:44 +00:00
Doug Rabson
0160dedc65 Implement a separate control for write gathering on NFSv3. This is turned
off for NFSv3 by default since write gathering seems to reduce performance
for NFSv3 by up to 60%.

Add sysctl knobs to control both variables.
1997-05-10 16:59:36 +00:00
Doug Rabson
5ae0f71815 Fix a nasty hang connected with write gathering. Also add debug print
statements to bits of the server which helped me find the hang.
1997-05-10 16:12:03 +00:00
Doug Rabson
6382d3ad84 Allow NULL rpcs on non-privileged ports at all times to work around broken
clients.

PR:		kern/3298
Submitted by:	Tor Egge <Tor.Egge@idi.ntnu.no>
1997-04-30 09:51:37 +00:00
Garrett Wollman
a29f300e80 The long-awaited mega-massive-network-code- cleanup. Part I.
This commit includes the following changes:
1) Old-style (pr_usrreq()) protocols are no longer supported, the compatibility
glue for them is deleted, and the kernel will panic on boot if any are compiled
in.

2) Certain protocol entry points are modified to take a process structure,
so they they can easily tell whether or not it is possible to sleep, and
also to access credentials.

3) SS_PRIV is no more, and with it goes the SO_PRIVSTATE setsockopt()
call.  Protocols should use the process pointer they are now passed.

4) The PF_LOCAL and PF_ROUTE families have been updated to use the new
style, as has the `raw' skeleton family.

5) PF_LOCAL sockets now obey the process's umask when creating a socket
in the filesystem.

As a result, LINT is now broken.  I'm hoping that some enterprising hacker
with a bit more time will either make the broken bits work (should be
easy for netipx) or dike them out.
1997-04-27 20:01:29 +00:00
Doug Rabson
9aa2858d44 Fix broken usage of nm_readdirsize and increase the socket buffers for UDP
to prevent possible socket overflows.

2.2 candidate.

PR:		kern/3304
Reviewed by:	Thomas David Rivers <ponds!rivers@dg-rtp.dg.com>
1997-04-22 17:38:01 +00:00
Doug Rabson
4ba14e3a10 Fix various bugs in the locking protocol, allowing proper shared locks
to be used.  This should fix the lock panics that people are seeing.
1997-04-04 17:49:35 +00:00
Bruce Evans
b445591810 Removed #include of <ufs/ufs/dir.h>. Nfs no longer depends on any ufs
features, and the one thing that it depended on (DIRBLKSIZ) now has
conflicting spelling.
1997-03-29 12:40:20 +00:00
Bruce Evans
00780cef44 Define our own version of DIRBLKSIZ instead of (ab)using ufs's value.
Use the same value of 512 (ufs actually uses DEV_BSIZE).  There are
too many versions of DIRBLKSIZ, one for ufs, one for ext2fs, one for
nfs, one for ibcs2, one for linux, one for applications, ... I think
nfs's DIRBLKSIZ needs to be a divisor of the directory blocks sizes
of all supported file systems.  There is also NFS_DIRBLKSIZ, which is
different from nfs's DIRBLKSIZ but is sometimes confused with it in
comments.

Removed a bogus #ifdef KERNEL that hid the tunable constants for nfs.
This came in undocumented with the Lite2 merge although it isn't in
Lite2.  It required more-bogus #define KERNEL's in fstat and pstat
to make the constants visible.

Restored a spelling fix from rev.1.17.

Removed duplicate #defines of all the the NFS mount option flags.
1997-03-29 12:34:33 +00:00
Guido van Rooij
394da4c167 Add code that will reject nfs requests in teh kernel from nonprivileged
ports. This option will be automatically set/cleraed when mount is run
without/with the -n option.
Reviewed by:	Doug Rabson
1997-03-27 20:01:07 +00:00
Peter Wemm
476b25e22e Use the correct (relative to the implementation) ordering of args in
the VOP_LINK() calls, Closes PR#3064

Submitted by: bde
1997-03-25 05:13:40 +00:00
Peter Wemm
289c56e81e The local fs interface does not allow link()/unlink() of directories,
do not allow a remote nfs client to cause local fs corruption either.
1997-03-25 05:08:28 +00:00
Bruce Evans
3c81694426 Fixed some invalid (non-atomic) accesses to `time', mostly ones of the
form `tv = time'.  Use a new function gettime().  The current version
just forces atomicicity without fixing precision or efficiency bugs.
Simplified some related valid accesses by using the central function.
1997-03-22 06:53:45 +00:00
Peter Wemm
6875d25465 Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.
1997-02-22 09:48:43 +00:00
John Dyson
996c772f58 This is the kernel Lite/2 commit. There are some requisite userland
changes, so don't expect to be able to run the kernel as-is (very well)
without the appropriate Lite/2 userland changes.

The system boots and can mount UFS filesystems.

Untested: ext2fs, msdosfs, NFS
Known problems: Incorrect Berkeley ID strings in some files.
		Mount_std mounts will not work until the getfsent
		library routine is changed.

Reviewed by:	various people
Submitted by:	Jeffery Hsu <hsu@freebsd.org>
1997-02-10 02:22:35 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Doug Rabson
f438ae02f5 Improve the queuing algorithms used by NFS' asynchronous i/o. The
existing mechanism uses a global queue for some buffers and the
vp->b_dirtyblkhd queue for others.  This turns sequential writes into
randomly ordered writes to the server, affecting both read and write
performance.  The existing mechanism also copes badly with hung
servers, tending to block accesses to other servers when all the iods
are waiting for a hung server.

The new mechanism uses a queue for each mount point.  All asynchronous
i/o goes through this queue which preserves the ordering of requests.
A simple mechanism ensures that the iods are shared out fairly between
active mount points.  This removes the sysctl variable vfs.nfs.dwrite
since the new queueing mechanism removes the old delayed write code
completely.

This should go into the 2.2 branch.
1996-11-06 10:53:16 +00:00
Doug Rabson
f31dba4c5d This fixes a problem with the nfs socket handling code which happens
if a single process is performing a large number of requests (in this
case writing a large file).  The writing process could monopolise the
recieve lock and prevent any other processes from recieving their
replies.

It also adds a new sysctl variable 'vfs.nfs.dwrite' which controls the
behaviour which originally pointed out the problem.  When a process
writes to a file over NFS, it usually arranges for another process
(the 'iod') to perform the request.  If no iods are available, then it
turns the write into a 'delayed write' which is later picked up by the
next iod to do a write request for that file.  This can cause that
particular iod to do a disproportionate number of requests from a
single process which can harm performance on some NFS servers.  The
alternative is to perform the write synchronously in the context of
the original writing process if no iod is avaiable for asynchronous
writing.

The 'delayed write' behaviour is selected when vfs.nfs.dwrite=1 and
the non-delayed behaviour is selected when vfs.nfs.dwrite=0.  The
default is vfs.nfs.dwrite=1; if many people tell me that performance
is better if vfs.nfs.dwrite=0 then I will change the default.

Submitted by:	Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp>
1996-10-11 10:15:33 +00:00
Nate Williams
030e2e9ebb In sys/time.h, struct timespec is defined as:
/*
         * Structure defined by POSIX.4 to be like a timeval.
         */
        struct timespec {
                time_t  ts_sec;         /* seconds */
                long    ts_nsec;        /* and nanoseconds */
        };

        The correct names of the fields are tv_sec and tv_nsec.

Reminded by:	James Drobina <jdrobina@infinet.com>
1996-09-19 18:21:32 +00:00
David Greenman
0247363f69 Release an unneeded reference to a vnode that was gained in a VFS_VGET().
Fixes a readdirplus panic.

Submitted by:	Doug Rabson <dfr@render.com>
1996-09-05 07:58:04 +00:00
Bruce Evans
b71fec07db Eliminated nested include of <sys/unistd.h> in <sys/file.h> in the kernel.
Include it directly in the few places where it is used.

Reduced some #includes of <sys/file.h> to #includes of <sys/fcntl.h> or
nothing.
1996-09-03 14:25:27 +00:00
John Dyson
6476c0d204 Even though this looks like it, this is not a complex code change.
The interface into the "VMIO" system has changed to be more consistant
and robust.  Essentially, it is now no longer necessary to call vn_open
to get merged VM/Buffer cache operation, and exceptional conditions
such as merged operation of VBLK devices is simpler and more correct.

This code corrects a potentially large set of problems including the
problems with ktrace output and loaded systems, file create/deletes,
etc.

Most of the changes to NFS are cosmetic and name changes, eliminating
a layer of subroutine calls.  The direct calls to vput/vrele have
been re-instituted for better cross platform compatibility.

Reviewed by: davidg
1996-08-21 21:56:23 +00:00
Doug Rabson
09c6884729 Various fixes from frank@fwi.uva.nl (Frank van der Linden) via
rick@snowhite.cis.uoguelph.ca:

1. Clear B_NEEDCOMMIT in nfs_write to make sure that dirty data is
correctly send to the server.  If a buffer was dirtied when it was in
the B_DELWRI+B_NEEDCOMMIT state, the state of the buffer was left
unchanged and when the buffer was later cleaned, just a commit rpc was
made to the server to complete the previous write.  Clearing
B_NEEDCOMMIT ensures that another write is made to the server.

2. If a server returned a server (for whatever reason) returned an
answer to a write RPC that implied that fewer bytes than requested
were written, bad things would happen.

3. The setattr operation passed on the atime in stead of the mtime to
the server. The fix is trivial.

4. XIDs always started at 0, but this caused some servers (older DEC
OSF/1 3.0 so I've been told) who had very long-lasting XID caches to
get confused if, after a reboot of a BSD client, RPCs came in with a
XID that had in the past been used before from that client. Patch is
to use the current time in seconds as a starting point for XIDs. The
patch below is not perfect, because it requires the root fs to be
mounted first. This is because of the check BSD systems do, comparing
FS time to system time.

Reviewed by:	Bruce Evans, Terry Lambert.
Obtained from:  frank@fwi.uva.nl (Frank van der Linden) via rick@snowhite.cis.uoguelph.ca
1996-07-16 10:19:45 +00:00
Garrett Wollman
2c37256e5a Modify the kernel to use the new pr_usrreqs interface rather than the old
pr_usrreq mechanism which was poorly designed and error-prone.  This
commit renames pr_usrreq to pr_ousrreq so that old code which depended on it
would break in an obvious manner.  This commit also implements the new
interface for TCP, although the old function is left as an example
(#ifdef'ed out).  This commit ALSO fixes a longstanding bug in the
TCP timer processing (introduced by davidg on 1995/04/12) which caused
timer processing on a TCB to always stop after a single timer had
expired (because it misinterpreted the return value from tcp_usrreq()
to indicate that the TCB had been deleted).  Finally, some code
related to polling has been deleted from if.c because it is not
relevant t -current and doesn't look at all like my current code.
1996-07-11 16:32:50 +00:00
Bruce Evans
8cd5acbce0 Don't truncate minor or major numbers in the nfsv3 client. 1996-06-23 17:19:25 +00:00
Poul-Henning Kamp
5b28a6011f Fix for NFS_NOSERVER
Poul mentioned that he thought this was some kind of timing problem, and
that started me thinking. After a little poking around, I found that
nfs_timer() was completely disabled when NFS_NOSERVER was #defined.
But after looking at nfs_timer(), it seemed like it was something
required by both the client and server code, and disabling it outright
just didn't seem to make any sense. Parts of it relate only to the
NFS server side code, so I disabled those, but I re-enabled the rest
of the function and made sure that it would be called from nfs_init()
(in nfs_subs.c).

With nfs_timer() re-enabled, everything seems to work again. The only
other changes I made were to #ifdef away some variable declarations
in the NFS_NOSERVER case so that gcc would stop complaining about
unused variables.

Reviewed by:	phk
Submitted by:	Bill Paul <wpaul@skynet.ctr.columbia.edu>
1996-06-14 11:13:21 +00:00
Bruce Evans
39a3579443 Fixed a vnode reference leak in nfsrv_rename(). The target inode wasn't
released until the file system was unmounted.  This bug also affected
kern/vfs_syscalls.c but was fixed in rev.1.18 and rev.1.20 there.

Reviewed by:	davidg
1996-06-08 12:16:26 +00:00
Bruce Evans
71d96b71c2 #include <sys/filedesc.h> explicitly instead of depending on it being
bogusly included by <sys/socketvar.h>.
1996-04-30 23:26:52 +00:00
Bruce Evans
21e0797227 Fixed nfs sysctls. They missed out on the fs -> vfs name changes from
Lite2.  This broke nfsstat.
1996-04-30 23:23:09 +00:00
Garrett Wollman
dc915e7cfc Kill XNS.
While we're at it, fix socreate() to take a process argument.  (This
was supposed to get committed days ago...)
1996-02-13 18:16:31 +00:00
Mike Pritchard
6c5e9bbdf5 Fix a bunch of spelling errors in the comment fields of
a bunch of system include files.
1996-01-30 23:02:38 +00:00
John Dyson
bd7e5f992e Eliminated many redundant vm_map_lookup operations for vm_mmap.
Speed up for vfs_bio -- addition of a routine bqrelse to greatly diminish
	overhead for merged cache.
Efficiency improvement for vfs_cluster.  It used to do alot of redundant
	calls to cluster_rbuild.
Correct the ordering for vrele of .text and release of credentials.
Use the selective tlb update for 486/586/P6.
Numerous fixes to the size of objects allocated for files.  Additionally,
	fixes in the various pagers.
Fixes for proper positioning of vnode_pager_setsize in msdosfs and ext2fs.
Fixes in the swap pager for exhausted resources.  The pageout code
	will not as readily thrash.
Change the page queue flags (PG_ACTIVE, PG_INACTIVE, PG_FREE, PG_CACHE) into
	page queue indices (PQ_ACTIVE, PQ_INACTIVE, PQ_FREE, PQ_CACHE),
	thereby improving efficiency of several routines.
Eliminate even more unnecessary vm_page_protect operations.
Significantly speed up process forks.
Make vm_object_page_clean more efficient, thereby eliminating the pause
	that happens every 30seconds.
Make sequential clustered writes B_ASYNC instead of B_DELWRI even in the
	case of filesystems mounted async.
Fix a panic with busy pages when write clustering is done for non-VMIO
	buffers.
1996-01-19 04:00:31 +00:00
Poul-Henning Kamp
99cb299316 Add an option NFS_NOSERVER which saves 100K in the install kernel (or
any other kernel that uses it).  Use with option NFS.
1996-01-13 23:27:58 +00:00
Poul-Henning Kamp
b8dce649f1 Staticize. 1995-12-17 21:14:36 +00:00
David Greenman
efeaf95a41 Untangled the vm.h include file spaghetti. 1995-12-07 12:48:31 +00:00
Bruce Evans
dee6b0ab68 Completed function declarations and/or added prototypes and/or moved
prototypes to the right place.
1995-12-03 10:03:12 +00:00
Bruce Evans
55054f3540 Completed function declarations, added prototypes and removed redundant
declarations.
1995-11-21 15:51:39 +00:00
Bruce Evans
512fef80a9 Completed function declarations and/or added prototypes. 1995-11-21 12:55:26 +00:00
Bruce Evans
e4f937b07b Included <sys/sysproto.h> to get central declarations for syscall args
structs and prototypes for syscalls.

Ifdefed duplicated decentralized declarations of args structs.  It's
convenient to have this visible but they are hard to maintain.  Some
are already different from the central declarations.  4.4lite2 puts
them in comments in the function headers but I wanted to avoid the
large changes for that.
1995-11-14 05:16:37 +00:00
Joerg Wunsch
e046098fa9 Include a prerequisite header (so this is consistent again with the
NFSv2 state).
1995-10-31 21:17:59 +00:00