Commit Graph

34 Commits

Author SHA1 Message Date
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
Bruce Evans
41fadeeb28 Removed yet more vestiges of config-time swap configuration and/or
cleaned up nearby cruft.
1997-09-07 16:21:11 +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
John Dyson
5fd549b62e Fix a problem with ext2fs so that filesystems mounted at reboot don't
keep ahold of buffers, and therefore leave filesystems dirty.  I haven't
been able to test, but the code compiles.  Those who run -current, please
test and report back!!!  (Sorry :-)).

PR:		kern/3571
Submitted by:	Dirk Keunecke <dk@panda.rhein-main.de>
1997-08-04 05:10:31 +00:00
Bruce Evans
6789b801d1 Removed unused #includes. 1997-06-14 14:17:07 +00:00
Bruce Evans
fce002fdef Don't include <sys/ioctl.h> in the kernel. Stage 1: don't include
it when it is not used.  In most cases, the reasons for including it
went away when the special ioctl headers became self-sufficient.
1997-03-24 11:25:10 +00:00
Bruce Evans
3ac4d1ef0c Don't #include <sys/fcntl.h> in <sys/file.h> if KERNEL is defined.
Fixed everything that depended on getting fcntl.h stuff from the wrong
place.  Most things don't depend on file.h stuff at all.
1997-03-23 03:37:54 +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
Gary Palmer
c23670e294 Clean up -Wunused warnings.
Reviewed by:		bde
1996-06-12 05:11:41 +00:00
Bruce Evans
e6302eab11 Removed vestigial support for the obsolete FIFO option. In ext2fs
it caused null pointer panics for all fifo operations unless FIFO
was defined.
1996-02-25 20:12:36 +00:00
Garrett Wollman
01733a9b6d Convert QUOTA to new-style option. 1996-01-05 18:31:58 +00:00
Poul-Henning Kamp
b8dce649f1 Staticize. 1995-12-17 21:14:36 +00:00
Bruce Evans
172fc5ae28 Restored variables that are used iff QUOTA is defined.
ext2fs still uses #if in many cases where the rest of the kernel uses
#ifdef (for QUOTA...).
1995-12-10 21:38:45 +00:00
John Dyson
b0a50fff55 Correct some serious porting errors. The worst one was that the
vnode was being placed upon the mount point twice!!!
1995-11-19 20:24:15 +00:00
Bruce Evans
b9286a3a0b ext2_inode_cnv.c:
Included <sys/vnode.h> and its prerequisite <sys/proc.h>, and cleaned
up includes.  The vop_t changes made the non-inclusion of vnode.h
fatal instead of just sloppy.

i386_bitops.h:
Changed `extern inline' to `static inline'.  `extern inline' is a
Linuxism that stops things from compiling without -O.  Fixed
idempotency identifier.

Misc:
Added prototypes.  Staticized some functions so that prototypes are
unnecessary.  Added casts.  Cleaned up includes.
1995-11-09 08:41:25 +00:00
John Dyson
f3c33c9336 Cleaned up some lint and some obvious prototyping errors. 1995-11-08 04:50:00 +00:00
John Dyson
c33a4405f7 Main code for the ext2fs filesystem. Please refer to the COPYRIGHT.INFO
file for GPL restrictions.  This code was ported to the BSD platform
by Godmar Back <gback@facility.cs.utah.edu> and specifically to FreeBSD
by John Dyson.  This code is still green and should be used with caution.
Additional changes to UFS necessary to make this code work will be commited
seperately.
Submitted by:	Godmar Back <gback@facility.cs.utah.edu>
Obtained from:	Lites/Mach4
1995-11-05 23:25:12 +00:00