Commit Graph

207 Commits

Author SHA1 Message Date
tegge
1863fc8e05 Add a BOOTP_WIRED_TO option, for use on machines with multiple network
cards where the first detected card should not be used for bootp.
Submitted by:	Doug Ambrisko <ambrisko@whistle.com>
1998-03-14 04:13:56 +00:00
tegge
c7f60bf6a5 Update workaround for limitations in the arp code.
Adjust the RPC timeout message which occured when the old workaround
broke to show the correct IP address.
1998-03-14 03:25:18 +00:00
julian
3da153eb72 Reviewed by: dyson@freebsd.org (john Dyson), dg@root.com (david greenman)
Submitted by:	Kirk McKusick (mcKusick@mckusick.com)
Obtained from:  WHistle development tree
1998-03-08 09:59:44 +00:00
dyson
067e84884d This mega-commit is meant to fix numerous interrelated problems. There
has been some bitrot and incorrect assumptions in the vfs_bio code.  These
problems have manifest themselves worse on NFS type filesystems, but can
still affect local filesystems under certain circumstances.  Most of
the problems have involved mmap consistancy, and as a side-effect broke
the vfs.ioopt code.  This code might have been committed seperately, but
almost everything is interrelated.

1)	Allow (pmap_object_init_pt) prefaulting of buffer-busy pages that
	are fully valid.
2)	Rather than deactivating erroneously read initial (header) pages in
	kern_exec, we now free them.
3)	Fix the rundown of non-VMIO buffers that are in an inconsistent
	(missing vp) state.
4)	Fix the disassociation of pages from buffers in brelse.  The previous
	code had rotted and was faulty in a couple of important circumstances.
5)	Remove a gratuitious buffer wakeup in vfs_vmio_release.
6)	Remove a crufty and currently unused cluster mechanism for VBLK
	files in vfs_bio_awrite.  When the code is functional, I'll add back
	a cleaner version.
7)	The page busy count wakeups assocated with the buffer cache usage were
	incorrectly cleaned up in a previous commit by me.  Revert to the
	original, correct version, but with a cleaner implementation.
8)	The cluster read code now tries to keep data associated with buffers
	more aggressively (without breaking the heuristics) when it is presumed
	that the read data (buffers) will be soon needed.
9)	Change to filesystem lockmgr locks so that they use LK_NOPAUSE.  The
	delay loop waiting is not useful for filesystem locks, due to the
	length of the time intervals.
10)	Correct and clean-up spec_getpages.
11)	Implement a fully functional nfs_getpages, nfs_putpages.
12)	Fix nfs_write so that modifications are coherent with the NFS data on
	the server disk (at least as well as NFS seems to allow.)
13)	Properly support MS_INVALIDATE on NFS.
14)	Properly pass down MS_INVALIDATE to lower levels of the VM code from
	vm_map_clean.
15)	Better support the notion of pages being busy but valid, so that
	fewer in-transit waits occur.  (use p->busy more for pageouts instead
	of PG_BUSY.)  Since the page is fully valid, it is still usable for
	reads.
16)	It is possible (in error) for cached pages to be busy.  Make the
	page allocation code handle that case correctly.  (It should probably
	be a printf or panic, but I want the system to handle coding errors
	robustly.  I'll probably add a printf.)
17)	Correct the design and usage of vm_page_sleep.  It didn't handle
	consistancy problems very well, so make the design a little less
	lofty.  After vm_page_sleep, if it ever blocked, it is still important
	to relookup the page (if the object generation count changed), and
	verify it's status (always.)
18)	In vm_pageout.c, vm_pageout_clean had rotted, so clean that up.
19)	Push the page busy for writes and VM_PROT_READ into vm_pageout_flush.
20)	Fix vm_pager_put_pages and it's descendents to support an int flag
	instead of a boolean, so that we can pass down the invalidate bit.
1998-03-07 21:37:31 +00:00
msmith
14bb3dadc6 Trivial filesystem getpages/putpages implementations, set the second.
These should be considered the first steps in a work-in-progress.
Submitted by:	Terry Lambert <terry@freebsd.org>
1998-03-06 09:46:52 +00:00
msmith
0656734d76 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
eivind
86354cd8fc Staticize. 1998-02-09 06:11:36 +00:00
eivind
15aa079292 Back out DIAGNOSTIC changes. 1998-02-06 12:14:30 +00:00
dyson
95e3a3ee03 Fix an omission of a line from the previous commit to this file. The
problem appeared to be an NFS hang.
1998-02-05 16:40:57 +00:00
eivind
d8f3bc5b0e Turn DIAGNOSTIC into a new-style option. 1998-02-04 22:34:03 +00:00
bde
f3dd4c35fa Forward declare some structs so that this file is more self-sufficient. 1998-02-03 21:52:02 +00:00
bde
5756d7aa6c 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
bde
814840a7b3 Forward declare more structs that are used in prototypes here - don't
depend on <sys/types.h> forward declaring common ones.

Added an underscore to `sin' in prototypes to avoid warnings for the
conflict with the ANSI sin().
1998-02-01 20:34:07 +00:00
tegge
f070ec86c5 Release the buffer when an error occurs while reading directory entries. 1998-01-31 01:27:18 +00:00
dyson
beea50f626 Various NFS fixes:
Make vfs_bio buffer mgmt work better.
	Buffers were being used after brelse.
	Make nfs_getpages work independently of other NFS
		interfaces.  This eliminates some difficult
		recursion problems and decreases pagefault
		overhead.
	Remove an erroneous vfs_unbusy_pages.
	Fix a reentrancy problem, with nfs_vinvalbuf when
		vnode is already being rundown.
	Reassignbuf wasn't being called when needed under
		certain circumstances.

	(Thanks to Bill Paul for help.)
1998-01-25 06:24:09 +00:00
dyson
83081e7a25 Various NFS fixes:
Make vfs_bio buffer mgmt work better.
	Buffers were being used after brelse.
	Make nfs_getpages work independently of other NFS
		interfaces.  This eliminates some difficult
		recursion problems and decreases pagefault
		overhead.
	Remove an erroneous vfs_unbusy_pages.
	Fix a reentrancy problem, with nfs_vinvalbuf when
		vnode is already being rundown.
	Reassignbuf wasn't being called when needed under
		certain circumstances.

	(Thanks for help from Bill Paul.)
1998-01-25 06:14:26 +00:00
tegge
e7982a3894 Increase the minimum bootp reply packet size from 16 (bogus) to 300 (correct). 1998-01-18 18:46:20 +00:00
eivind
d397976283 Make the BOOTP family new-style options (in opt_bootp.h) 1998-01-09 03:21:07 +00:00
eivind
15cd3046e2 Make INET a proper option.
This will not make any of object files that LINT create change; there
might be differences with INET disabled, but hardly anything compiled
before without INET anyway.  Now the 'obvious' things will give a
proper error if compiled without inet - ipx_ip, ipfw, tcp_debug.  The
only thing that _should_ work (but can't be made to compile reasonably
easily) is sppp :-(

This commit move struct arpcom from <netinet/if_ether.h> to
<net/if_arp.h>.
1998-01-08 23:42:31 +00:00
dyson
2957cf991c Make our v_usecount vnode reference count work identically to the
original BSD code.  The association between the vnode and the vm_object
no longer includes reference counts.  The major difference is that
vm_object's are no longer freed gratuitiously from the vnode, and so
once an object is created for the vnode, it will last as long as the
vnode does.

When a vnode object reference count is incremented, then the underlying
vnode reference count is incremented also.  The two "objects" are now
more intimately related, and so the interactions are now much less
complex.

When vnodes are now normally placed onto the free queue with an object still
attached.  The rundown of the object happens at vnode rundown time, and
happens with exactly the same filesystem semantics of the original VFS
code.  There is absolutely no need for vnode_pager_uncache and other
travesties like that anymore.

A side-effect of these changes is that SMP locking should be much simpler,
the I/O copyin/copyout optimizations work, NFS should be more ponderable,
and further work on layered filesystems should be less frustrating, because
of the totally coherent management of the vnode objects and vnodes.

Please be careful with your system while running this code, but I would
greatly appreciate feedback as soon a reasonably possible.
1998-01-06 05:26:17 +00:00
dyson
3d6663f697 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
bde
5582e93aac Unspammed nested include of <vm/vm_zone.h>. 1997-12-27 02:56:39 +00:00
bde
15a08da72a Added a used include.
Fixed a gratuitous ANSIism and nearby KNF violations.
1997-12-20 00:25:01 +00:00
dyson
f0702063f2 Various of the ISP users have commented that the 1.41 version of the
nfs_bio.c code worked better than the 1.44.  This commit reverts
the important parts of 1.44 to 1.41, and we will fix it when we
can get a handle on the problem.
1997-12-08 00:59:08 +00:00
bde
96ae6529fd 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
julian
ac07cf2063 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
phk
0ba94551b3 Rename some local variables to avoid shadowing other local variables.
Found by: -Wshadow
1997-11-07 09:21:01 +00:00
phk
0f7586cd71 Remove a bunch of variables which were unused both in GENERIC and LINT.
Found by:	-Wunused
1997-11-07 08:53:44 +00:00
phk
5f349f6779 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
bde
0ba390293e Removed unused #includes. 1997-10-28 15:59:26 +00:00
bde
e255dc9062 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
bde
c66c65c099 Removed unused #includes. The need for most of them went away with
recent changes (docluster* and vfs improvements).
1997-10-27 13:33:47 +00:00
phk
dadc5bd35f VFS interior redecoration.
Rename vn_default_error to vop_defaultop all over the place.
Move vn_bwrite from vfs_bio.c to vfs_default.c and call it vop_stdbwrite.
Use vop_null instead of nullop.
Move vop_nopoll from vfs_subr.c to vfs_default.c
Move vop_sharedlock from vfs_subr.c to vfs_default.c
Move vop_nolock from vfs_subr.c to vfs_default.c
Move vop_nounlock from vfs_subr.c to vfs_default.c
Move vop_noislocked from vfs_subr.c to vfs_default.c
Use vop_ebadf instead of *_ebadf.
Add vop_defaultop for getpages on master vnode in MFS.
1997-10-26 20:55:39 +00:00
phk
c28cb7441e 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
phk
09ab028f03 VFS clean up "hekto commit"
1.  Add defaults for more VOPs
        VOP_LOCK        vop_nolock
        VOP_ISLOCKED    vop_noislocked
        VOP_UNLOCK      vop_nounlock
    and remove direct reference in filesystems.

2.  Rename the nfsv2 vnop tables to improve sorting order.
1997-10-16 22:01:05 +00:00
phk
7130170e1c 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
phk
df25e41132 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
phk
1b989193f4 vnops megacommit
1.  Use the default function to access all the specfs operations.
2.  Use the default function to access all the fifofs operations.
3.  Use the default function to access all the ufs operations.
4.  Fix VCALL usage in vfs_cache.c
5.  Use VOCALL to access specfs functions in devfs_vnops.c
6.  Staticize most of the spec and fifofs vnops functions.
7.  Make UFS panic if it lacks bits of the underlying storage handling.
1997-10-15 13:24:07 +00:00
phk
edde284e45 Hmm, realign the vnops into two columns. 1997-10-15 10:05:29 +00:00
phk
1069b4583e Stylistic overhaul of vnops tables.
1. Remove comment stating the blatantly obvious.
        2. Align in two columns.
        3. Sort all but the default element alphabetically.
        4. Remove XXX comments pointing out entries not needed.
1997-10-15 09:22:02 +00:00
phk
63765d6be3 When the default vnops funtion is vn_default_error(), there is no reason to
implement small functions that just return EOPNOTSUPP for things we don't do.

The removed functions only apply to UFS based filesystems anyway.
1997-10-15 07:42:34 +00:00
phk
d38c0e3213 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
phk
3002600191 Distribute and statizice a lot of the malloc M_* types.
Substantial input from:	bde
1997-10-11 18:31:40 +00:00
phk
52b01b9b99 Reverse rev 1.56 and rev 1.59. These made NFS too flakey. 1997-10-05 12:28:59 +00:00
dyson
46d4489773 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
peter
f58ce107d9 select -> poll
flag missing vnode op table entries
1997-09-14 03:00:44 +00:00
phk
fecdcfd198 Don't repeat checks done at general level. 1997-09-10 21:27:40 +00:00
phk
7978e73903 Remove a couple of stubborn NetBSD #if's. 1997-09-10 20:22:32 +00:00
phk
46bdc92da0 unifdef -U__NetBSD__ -D__FreeBSD__ 1997-09-10 19:52:27 +00:00
bde
2e0ff1b42c Removed more vestiges of config-time swap configuration. 1997-09-07 12:56:46 +00:00