Commit Graph

482 Commits

Author SHA1 Message Date
Bruce Evans
392dbea3f6 Fixed some (most) style bugs in rev.1.33. Mainly 4-char indentation
(msdosfs uses normal 8-char indentation almost everywhere else),
too-long lines, and minor English usage errors.  The verbose formal
comment before the new function is still abnormal.
2003-12-29 11:59:05 +00:00
Bruce Evans
be039c568f Fixed some minor style bugs in rev.1.144. All related to msdosfs_advlock()
(mainly unsorting).  There were no changes related to the dirty flag
here.  The reference NetBSD implementation put msdosfs_advlock() in a
different place.  This commit only moves its declarations and changes
some of the function body to be like the NetBSD version.
2003-12-29 10:12:02 +00:00
Bruce Evans
a78c928753 Fixed style bugs in rev.1.112. The bugs started with obscure magic
numbers in comments (Apple PR numbers?) and didn't improve.
2003-12-29 09:50:42 +00:00
Tom Rhodes
cede1f563c Make msdosfs support the dirty flag in FAT16 and FAT32.
Enable lockf support.

PR:		55861
Submitted by:	Jun Su <junsu@m-net.arbornet.org> (original version)
Reviewed by:	make universe
2003-12-26 17:19:19 +00:00
Max Khon
0f4e4130e1 Make msdosfs long filenames matching case insensitive again.
PR:		59765
Submitted by:	Ryuichiro Imura <imura@ryu16.org>
2003-12-08 08:32:20 +00:00
Alexander Kabaev
ca430f2e92 Remove mntvnode_mtx and replace it with per-mountpoint mutex.
Introduce two new macros MNT_ILOCK(mp)/MNT_IUNLOCK(mp) to
operate on this mutex transparently.

Eventually new mutex will be protecting more fields in
struct mount, not only vnode list.

Discussed with: jeff
2003-11-05 04:30:08 +00:00
Alexander Kabaev
cb9ddc80ae Take care not to call vput if thread used in corresponding vget
wasn't curthread, i.e. when we receive a thread pointer to use
as a function argument. Use VOP_UNLOCK/vrele in these cases.

The only case there td != curthread known at the moment is
boot() calling sync with thread0 pointer.

This fixes the panic on shutdown people have reported.
2003-11-02 04:52:53 +00:00
Alexander Kabaev
492c1e68fb Temporarily undo parts of the stuct mount locking commit by jeff.
It is unsafe to hold a mutex across vput/vrele calls.

This will be redone when a better locking strategy is agreed upon.

Discussed with: jeff
2003-11-01 05:51:54 +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
c87b01a0fd Initialize b_offset before calling VOP_STRATEGY/VOP_SPECSTRATEGY.
Remove various comments of KASSERTS and comments about B_PHYS which
does not apply anymore.
2003-10-18 11:06:15 +00:00
Jeff Roberson
4ab2c8bd52 - Check the XLOCK prior to inspecting v_data. 2003-10-05 06:44:53 +00:00
Jeff Roberson
9c695a2697 - Don't cache_purge() in *_reclaim routines. vclean() does it for us so
this is redundant.
2003-10-05 02:43:30 +00:00
Jeff Roberson
c13c04a426 - Acquire the vnode interlock prior to droping the mntvnode_mtx. This does
not eliminate races where the vnode could be reclaimed and end up with
   a NULL v_data pointer but Giant is protecting us from that at the moment.
2003-10-04 12:52:37 +00:00
Bruce Evans
67425e4678 Fixed some style bugs in previous commit. Mainly, forward-declare
struct msdosfsmount so that this file has the same prerequisites as
it used to.  The new prerequistite was a meta-style bug.  It required
many style bugs (unsorted includes ...) elsewhere.

Formatted prototypes in KNF.  Resisted urge to sort all the prototypes,
to minimise differences with NetBSD.  (NetBSD has reformatted the
prototypes but has not sorted them and  still uses __P(()).)
2003-09-27 01:18:27 +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
Tom Rhodes
c98a31cad3 Add a '-M mask' option so that users can have different
masks for files and directories.  This should make some
of the Midnight Commander users happy.

Remove an extra ')' in the manual page.

PR:		35699
Submitted by:	Eugene Grosbein <eugen@grosbein.pp.ru> (original version)
Tested by:	simon
2003-08-12 20:06:56 +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
Tom Rhodes
3c01bab8a3 If bread() returns a zero-length buffer, as can happen after a
failed write, return an error instead of looping forever.

PR:		37035
Submitted by:	das
2003-07-03 14:54:47 +00:00
Tim J. Robbins
ae620d4480 XXX Copy workaround from UFS: open device for write access even if
the user requests a read-only mount. This is necessary because we
don't do the VOP_OPEN again if they upgrade a read-only mount to
read-write.

Fixes lockup when creating files on msdosfs mounts that have been
mounted read-only then upgraded to read-write. The exact cause of
the lockup is not known, but it is likely to be the kernel getting
stuck in an infinite loop trying to write dirty buffers to a device
without write permission.

Reported/tested by andreas, discussed with phk.
2003-06-29 03:05:59 +00:00
Tom Rhodes
c2f95f6688 Fix a bug where a truncate operation involving truncate() or ftruncate() on
an MSDOSFS file system either failed, silently corrupted the file, or
sometimes corrupted the neighboring file.

PR:		53695
Submitted by:	Ariff Abdullah <skywizard@MyBSD.org.my> (original version)
MFC:		3 days
2003-06-27 15:46:38 +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
Poul-Henning Kamp
670966596b Remove unused variable(s).
Found by:       FlexeLint
2003-05-31 20:29:34 +00:00
John Baldwin
696f22f04f Fail to mount a device if the bytes per sector in the BPB is less than
DEV_BSIZE or if the number of FAT sectors is zero.
2003-04-24 18:19:19 +00:00
Warner Losh
67af3913a3 It appears that msdosfs_init() is called multiple times. This happens
on my system where I preload msdosfs and have it in my kernel.
There's likely another bug that's causing msdosfs_init() to be called
multiple times, but this makes that harmless.
2003-04-10 00:13:12 +00:00
Jeff Roberson
7261f5f68e - Add a new 'flags' parameter to getblk().
- Define one flag GB_LOCK_NOWAIT that tells getblk() to pass the LK_NOWAIT
   flag to the initial BUF_LOCK().  This will eventually be used in cases
   were we want to use a buffer only if it is not currently in use.
 - Convert all consumers of the getblk() api to use this extra parameter.

Reviwed by:	arch
Not objected to by:	mckusick
2003-03-04 00:04:44 +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
Jeff Roberson
767b9a529d - Cleanup unlocked accesses to buf flags by introducing a new b_vflag member
that is protected by the vnode lock.
 - Move B_SCANNED into b_vflags and call it BV_SCANNED.
 - Create a vop_stdfsync() modeled after spec's sync.
 - Replace spec_fsync, msdos_fsync, and hpfs_fsync with the stdfsync and some
   fs specific processing.  This gives all of these filesystems proper
   behavior wrt MNT_WAIT/NOWAIT and the use of the B_SCANNED flag.
 - Annotate the locking in buf.h
2003-02-09 11:28:35 +00:00
Poul-Henning Kamp
91f1c2b3cc Split the global timezone structure into two integer fields to
prevent the compiler from optimizing assignments into byte-copy
operations which might make access to the individual fields non-atomic.

Use the individual fields throughout, and don't bother locking them with
Giant: it is no longer needed.

Inspired by:    tjr
2003-02-03 19:49:35 +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
Matthew Dillon
3a3d82ec0a Abstract-out the constants for the sequential heuristic.
No operational changes.

MFC after:	1 day
2002-12-28 20:37:50 +00:00
Alfred Perlstein
29f194457c Fix instances of macros with improperly parenthasized arguments.
Verified by: md5
2002-11-09 12:55:07 +00:00
Semen Ustimenko
e62d4b517b Fix winChkName() to match when the last slot contains nothing but the
terminating zero (it was treated as length missmatch). The mtools create
such slots if the name len is the product of 13 (max number of unicode
chars fitting in directory slot).

MFC after:	1 week
2002-10-29 01:03:44 +00:00
John Baldwin
01a4d0197d Grrr, s/PBP/BPB/ here as well.
Noticed by:	peter
2002-10-21 20:52:51 +00:00
John Baldwin
8a88248d57 Spell the BPB member of the 7.10 bootsector as bsBPB rather than bsPBP to
be like all the other bootsectors.  Apple has done the same it seems.
2002-10-21 19:00:50 +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
Jeff Roberson
4d93c0be1f - Use vrefcnt() where it is safe to do so instead of doing direct and
unlocked accesses to v_usecount.
 - Lock access to the buf lists in the various sync routines.  interlock
   locking could be avoided almost entirely in leaf filesystems if the
   fsync function had a generic helper.
2002-09-25 02:32:42 +00:00
Nate Lawson
86ed6d45ac Remove any VOP_PRINT that redundantly prints the tag.
Move lockmgr_printinfo() into vprint() for everyone's benefit.

Suggested by: bde
2002-09-18 20:42:04 +00:00
Nate Lawson
06be2aaa83 Remove all use of vnode->v_tag, replacing with appropriate substitutes.
v_tag is now const char * and should only be used for debugging.

Additionally:
1. All users of VT_NTS now check vfsconf->vf_type VFCF_NETWORK
2. The user of VT_PROCFS now checks for the new flag VV_PROCDEP, which
is propagated by pseudofs to all child vnodes if the fs sets PFS_PROCDEP.

Suggested by:   phk
Reviewed by:    bde, rwatson (earlier version)
2002-09-14 09:02:28 +00:00
Bruce Evans
34bdf0dcbf Fixed printf format errors and style bugs in rev.1.92. This is the version
that should have been committed in rev.1.93.
2002-08-25 02:39:07 +00:00
Bruce Evans
152ffafe85 Oops, the previous commit wasn't the version that I meant to commit (it
does some extra things which are probably harmless).  Back it out.
2002-08-25 02:34:18 +00:00
Bruce Evans
109a8e7c0c Fixed printf format errors and style bugs in previous commit. 2002-08-25 01:08:27 +00:00
Tom Rhodes
abe78e9708 Fix a bug where large msdos partitions were not handled correctly, and fix
a few fsck_msdosfs related 'issues'

PR:		28536, 30168
Submitted by:	Jiangyi Liu <jyliu@163.net> && NetBSD
Approved by:	rwatson (mentor)
2002-08-22 22:17:11 +00:00
Tom Rhodes
b5cdbc6dae When a cluster entry for ``.'' is set to 0, msdosfs fails to handle it
correctly.

PR:		24393
Submitted by:	semenu
Approved by:	rwatson (mentor)
MFC after:	1 week
2002-08-16 05:13:42 +00:00
Poul-Henning Kamp
9bf1a75697 Introduce typedefs for the member functions of struct vfsops and employ
these in the main filesystems.  This does not change the resulting code
but makes the source a little bit more grepable.

Sponsored by:	DARPA and NAI Labs.
2002-08-13 10:05:50 +00:00
Pierre Beyssac
f7a91b49b7 Fix typo in vnode flags causing deadlock in msdosfs_fsync().
Reviewed by:	jeff
2002-08-05 21:07:30 +00:00
Jeff Roberson
e6e370a7fe - Replace v_flag with v_iflag and v_vflag
- v_vflag is protected by the vnode lock and is used when synchronization
   with VOP calls is needed.
 - v_iflag is protected by interlock and is used for dealing with vnode
   management issues.  These flags include X/O LOCK, FREE, DOOMED, etc.
 - All accesses to v_iflag and v_vflag have either been locked or marked with
   mp_fixme's.
 - Many ASSERT_VOP_LOCKED calls have been added where the locking was not
   clear.
 - Many functions in vfs_subr.c were restructured to provide for stronger
   locking.

Idea stolen from:	BSD/OS
2002-08-04 10:29:36 +00:00
Tom Rhodes
d394511de3 More s/file system/filesystem/g 2002-05-16 21:28:32 +00:00
Poul-Henning Kamp
98b0c78978 Make daddr_t and u_daddr_t 64bits wide.
Retire daddr64_t and use daddr_t instead.

Sponsored by:	DARPA & NAI Labs.
2002-05-14 11:09:43 +00:00
Bruce Evans
32a95d83f9 Fixed a very old bug in setting timestamps using utimes(2) on msdosfs
files.  We didn't clear the update marks when we set the times, so
some of the settings were sometimes clobbered with the current time a
little later.  This caused cp -p even by root to almost always fail
to preserve any times despite not reporting any errors in attempting
to preserve them.

Don't forget to set the archive attribute when we set the read-only
attribute.  We should only set the archive attribute if we actually
change something, but we mostly don't bother avoiding setting it
elsewhere, so don't bother here yet.

MFC after:	1 week
2002-04-05 14:01:04 +00:00
John Baldwin
6008862bc2 Change callers of mtx_init() to pass in an appropriate lock type name. In
most cases NULL is passed, but in some cases such as network driver locks
(which use the MTX_NETWORK_LOCK macro) and UMA zone locks, a name is used.

Tested on:	i386, alpha, sparc64
2002-04-04 21:03:38 +00:00
John Baldwin
44731cab3b Change the suser() API to take advantage of td_ucred as well as do a
general cleanup of the API.  The entire API now consists of two functions
similar to the pre-KSE API.  The suser() function takes a thread pointer
as its only argument.  The td_ucred member of this thread must be valid
so the only valid thread pointers are curthread and a few kernel threads
such as thread0.  The suser_cred() function takes a pointer to a struct
ucred as its first argument and an integer flag as its second argument.
The flag is currently only used for the PRISON_ROOT flag.

Discussed on:	smp@
2002-04-01 21:31:13 +00:00
Bruce Evans
b76d0b3217 Fixed some style bugs in the removal of __P(()). Continuation lines
were not outdented to preserve non-KNF lining up of code with parentheses.
Switch to KNF formatting.
2002-03-23 12:38:05 +00:00
Alfred Perlstein
11caded34f Remove __P. 2002-03-19 22:20:14 +00:00
Kirk McKusick
0d2af52141 Introduce the new 64-bit size disk block, daddr64_t. Change
the bio and buffer structures to have daddr64_t bio_pblkno,
b_blkno, and b_lblkno fields which allows access to disks
larger than a Terabyte in size. This change also requires
that the VOP_BMAP vnode operation accept and return daddr64_t
blocks. This delta should not affect system operation in
any way. It merely sets up the necessary interfaces to allow
the development of disk drivers that work with these larger
disk block addresses. It also allows for the development of
UFS2 which will use 64-bit block addresses.
2002-03-15 18:49:47 +00:00
John Baldwin
a854ed9893 Simple p_ucred -> td_ucred changes to start using the per-thread ucred
reference.
2002-02-27 18:32:23 +00:00
Matthew Dillon
23b590188f Fix a BUF_TIMELOCK race against BUF_LOCK and fix a deadlock in vget()
against VM_WAIT in the pageout code.  Both fixes involve adjusting
the lockmgr's timeout capability so locks obtained with timeouts do not
interfere with locks obtained without a timeout.

Hopefully MFC: before the 4.5 release
2001-12-20 22:42:27 +00:00
John Baldwin
88736e1d37 Fix indentation after removing GEMDOS support. Whitespace changes only. 2001-11-28 18:29:16 +00:00
John Baldwin
5a7f3ebb94 Use suser_td() instead of explicitly checking cr_uid against 0.
PR:		kern/21809
Submitted by:	<mbendiks@eunet.no>
Reviewed by:	rwatson
2001-11-28 18:25:39 +00:00
John Baldwin
d3990d589f Axe more unused GEMDOS code that was #ifdef atari.
PR:		kern/21809
Submitted by:	<mbendiks@eunet.no>
2001-11-28 16:56:42 +00:00
John Baldwin
64bf8541f0 Remove GEMDOS support from msdosfs. I don't think anyone is going to
port FreeBSD to Atari machines any time soon.
2001-11-27 21:00:15 +00:00
Matthew Dillon
6b8bd2efc1 Add mnt_reservedvnlist so we can MFC to 4.x, in order to make all mount
structure changes now rather then piecemeal later on.  mnt_nvnodelist
currently holds all the vnodes under the mount point.  This will eventually
be split into a 'dirty' and 'clean' list.  This way we only break kld's once
rather then twice.  nvnodelist will eventually turn into the dirty list
and should remain compatible with the klds.
2001-11-04 18:55:42 +00:00
Matthew Dillon
c72ccd014d Change the vnode list under the mount point from a LIST to a TAILQ
in preparation for an implementation of limiting code for kern.maxvnodes.

MFC after:	3 days
2001-10-23 01:21:29 +00:00
Julian Elischer
b40ce4165d KSE Milestone 2
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after:    ha ha ha ha
2001-09-12 08:38:13 +00:00
Assar Westerlund
ac01ecd9fb remove support for creating files and directories from msdosfs_mknod 2001-07-19 19:15:42 +00:00
John Baldwin
797c3dba25 Fix a mntvnode and vnode interlock reversal. 2001-06-28 03:52:04 +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
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
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
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
Greg Lehey
60fb0ce365 Revert consequences of changes to mount.h, part 2.
Requested by:	bde
2001-04-29 02:45:39 +00:00
Poul-Henning Kamp
a13234bb35 Move the netexport structure from the fs-specific mountstructure
to struct mount.

This makes the "struct netexport *" paramter to the vfs_export
and vfs_checkexport interface unneeded.

Consequently that all non-stacking filesystems can use
vfs_stdcheckexp().

At the same time, make it a pointer to a struct netexport
in struct mount, so that we can remove the bogus AF_MAX
and #include <net/radix.h> from <sys/mount.h>
2001-04-25 07:07:52 +00:00
Greg Lehey
d98dc34f52 Correct #includes to work with fixed sys/mount.h. 2001-04-23 09:05:15 +00:00
John Baldwin
19eb87d22a Grab the process lock while calling psignal and before calling psignal. 2001-03-07 03:37:06 +00:00
Adrian Chadd
f3a90da995 Reviewed by: jlemon
An initial tidyup of the mount() syscall and VFS mount code.

This code replaces the earlier work done by jlemon in an attempt to
make linux_mount() work.

* the guts of the mount work has been moved into vfs_mount().

* move `type', `path' and `flags' from being userland variables into being
  kernel variables in vfs_mount(). `data' remains a pointer into
  userspace.

* Attempt to verify the `type' and `path' strings passed to vfs_mount()
  aren't too long.

* rework mount() and linux_mount() to take the userland parameters
  (besides data, as mentioned) and pass kernel variables to vfs_mount().
  (linux_mount() already did this, I've just tidied it up a little more.)

* remove the copyin*() stuff for `path'. `data' still requires copyin*()
  since its a pointer into userland.

* set `mount->mnt_statf_mntonname' in vfs_mount() rather than in each
  filesystem.  This variable is generally initialised with `path', and
  each filesystem can override it if they want to.

* NOTE: f_mntonname is intiailised with "/" in the case of a root mount.
2001-03-01 21:00:17 +00:00
Bosko Milekic
9ed346bab0 Change and clean the mutex lock interface.
mtx_enter(lock, type) becomes:

mtx_lock(lock) for sleep locks (MTX_DEF-initialized locks)
mtx_lock_spin(lock) for spin locks (MTX_SPIN-initialized)

similarily, for releasing a lock, we now have:

mtx_unlock(lock) for MTX_DEF and mtx_unlock_spin(lock) for MTX_SPIN.
We change the caller interface for the two different types of locks
because the semantics are entirely different for each case, and this
makes it explicitly clear and, at the same time, it rids us of the
extra `type' argument.

The enter->lock and exit->unlock change has been made with the idea
that we're "locking data" and not "entering locked code" in mind.

Further, remove all additional "flags" previously passed to the
lock acquire/release routines with the exception of two:

MTX_QUIET and MTX_NOSWITCH

The functionality of these flags is preserved and they can be passed
to the lock/unlock routines by calling the corresponding wrappers:

mtx_{lock, unlock}_flags(lock, flag(s)) and
mtx_{lock, unlock}_spin_flags(lock, flag(s)) for MTX_DEF and MTX_SPIN
locks, respectively.

Re-inline some lock acq/rel code; in the sleep lock case, we only
inline the _obtain_lock()s in order to ensure that the inlined code
fits into a cache line. In the spin lock case, we inline recursion and
actually only perform a function call if we need to spin. This change
has been made with the idea that we generally tend to avoid spin locks
and that also the spin locks that we do have and are heavily used
(i.e. sched_lock) do recurse, and therefore in an effort to reduce
function call overhead for some architectures (such as alpha), we
inline recursion for this case.

Create a new malloc type for the witness code and retire from using
the M_DEV type. The new type is called M_WITNESS and is only declared
if WITNESS is enabled.

Begin cleaning up some machdep/mutex.h code - specifically updated the
"optimized" inlined code in alpha/mutex.h and wrote MTX_LOCK_SPIN
and MTX_UNLOCK_SPIN asm macros for the i386/mutex.h as we presently
need those.

Finally, caught up to the interface changes in all sys code.

Contributors: jake, jhb, jasone (in no particular order)
2001-02-09 06:11:45 +00:00
Jeroen Ruigrok van der Werven
1a6e52d0e9 Fix typo: seperate -> separate.
Seperate does not exist in the english language.
2001-02-06 11:21:58 +00:00
Poul-Henning Kamp
fc2ffbe604 Mechanical change to use <sys/queue.h> macro API instead of
fondling implementation details.

Created with: sed(1)
Reviewed by: md5(1)
2001-02-04 13:13:25 +00:00
Jason Evans
1b367556b5 Convert all simplelocks to mutexes and remove the simplelock implementations. 2001-01-24 12:35:55 +00:00
Poul-Henning Kamp
49851cc706 Use macro API to <sys/queue.h> 2000-12-31 10:24:19 +00:00
David Malone
7cc0979fd6 Convert more malloc+bzero to malloc+M_ZERO.
Submitted by:	josh@zipperup.org
Submitted by:	Robert Drehmel <robd@gmx.net>
2000-12-08 21:51:06 +00:00
Poul-Henning Kamp
9f69a4578a Weaken a bogus dependency on <sys/proc.h> in <sys/buf.h> by #ifdef'ing
the offending inline function (BUF_KERNPROC) on it being #included
already.

I'm not sure BUF_KERNPROC() is even the right thing to do or in the
right place or implemented the right way (inline vs normal function).

Remove consequently unneeded #includes of <sys/proc.h>
2000-10-29 14:54:55 +00:00
Boris Popov
b1b494a765 Update stale comment.
PR:		kern/21805
2000-10-22 14:24:30 +00:00
Boris Popov
e7b1ac75dd Remove de_lock field from denode structure and make msdosfs PDIRUNLOCK aware. 2000-10-22 14:22:17 +00:00
Eivind Eklund
7eb9fca557 Blow away the v_specmountpoint define, replacing it with what it was
defined as (rdev->si_mountpoint)
2000-10-09 17:31:39 +00:00
Jason Evans
a18b1f1d4d Convert lockmgr locks from using simple locks to using mutexes.
Add lockdestroy() and appropriate invocations, which corresponds to
lockinit() and must be called to clean up after a lockmgr lock is no
longer needed.
2000-10-04 01:29:17 +00:00
Robert Watson
012c643d3e o Restructure vaccess() so as to check for DAC permission to modify the
object before falling back on privilege.  Make vaccess() accept an
  additional optional argument, privused, to determine whether
  privilege was required for vaccess() to return 0.  Add commented
  out capability checks for reference.  Rename some variables to make
  it more clear which modes/uids/etc are associated with the object,
  and which with the access mode.
o Update file system use of vaccess() to pass NULL as the optional
  privused argument.  Once additional patches are applied, suser()
  will no longer set ASU, so privused will permit passing of
  privilege information up the stack to the caller.

Reviewed by:	bde, green, phk, -security, others
Obtained from:	TrustedBSD Project
2000-08-29 14:45:49 +00:00
Bruce Evans
ff4ad0c4d8 Quick fix for msdsofs_write() on alphas and other machines with either
longs larger than 32 bits or strict alignment requirements.

pm_fatmask had type u_long, but it must have a type that has precisely
32 bits and this type must be no smaller than int, so that ~pmp->pm_fatmask
has no bits above the 31st set.  Otherwise, comparisons between (cn
| ~pmp->pm_fatmask) and magic 32-bit "cluster" numbers always fail.
The correct fix is to use the C99 type uint_least32_t and mask with
0xffffffff.  The quick fix is to use u_int32_t and assume that ints
have

msdosfs metadata is riddled with unaligned fields, and on alphas,
unaligned_fixup() apparently has problems fixing up the unaligned
accesses caused by this.  The quick fix is to not comment out the
NetBSD code that sort of handles this, and define UNALIGNED_ACCESS on
i386's so that the code doesn't change on i386's.  The correct fix
would define UNALIGNED_ACCESS in a central machine-dependent header
and maybe add some extra cases to unaligned_fixup().  UNALIGNED_ACCESS
is also tested in isofs.

Submitted by:	parts by Mark Abene <phiber@radicalmedia.com>
PR:		19086
2000-08-25 09:03:58 +00:00
Poul-Henning Kamp
e39c53eda5 Centralize the canonical vop_access user/group/other check in vaccess().
Discussed with: bde
2000-08-20 08:36:26 +00:00
David Malone
4ebb509c1f Certain error contitions cause msdosfs_rename() to decrement the
vnode reference count on 'fdvp' more times than it should.

PR:		17347
Submitted by:	Ian Dowse <iedowse@maths.tcd.ie>
Approved by:	bde
2000-07-14 11:52:56 +00:00
Boris Popov
432a84000f Fix memory leakage on module unload.
Spotted by:	fixed INVARIANTS code
2000-06-29 01:12:47 +00:00
Boris Popov
b1bd38b351 Remove obsolete comment.
Submitted by:	Marius Bendiksen <mbendiks@eunet.no>
2000-06-25 02:29:45 +00:00
Poul-Henning Kamp
9626b608de Separate the struct bio related stuff out of <sys/buf.h> into
<sys/bio.h>.

<sys/bio.h> is now a prerequisite for <sys/buf.h> but it shall
not be made a nested include according to bdes teachings on the
subject of nested includes.

Diskdrivers and similar stuff below specfs::strategy() should no
longer need to include <sys/buf.> unless they need caching of data.

Still a few bogus uses of struct buf to track down.

Repocopy by:    peter
2000-05-05 09:59:14 +00:00
Poul-Henning Kamp
2c9b67a8df Remove unneeded #include <vm/vm_zone.h>
Generated by:	src/tools/tools/kerninclude
2000-04-30 18:52:11 +00:00
Poul-Henning Kamp
8177437d85 Complete the bio/buf divorce for all code below devfs::strategy
Exceptions:
        Vinum untouched.  This means that it cannot be compiled.
        Greg Lehey is on the case.

        CCD not converted yet, casts to struct buf (still safe)

        atapi-cd casts to struct buf to examine B_PHYS
2000-04-15 05:54:02 +00:00
Poul-Henning Kamp
c244d2de43 Move B_ERROR flag to b_ioflags and call it BIO_ERROR.
(Much of this done by script)

Move B_ORDERED flag to b_ioflags and call it BIO_ORDERED.

Move b_pblkno and b_iodone_chain to struct bio while we transition, they
will be obsoleted once bio structs chain/stack.

Add bio_queue field for struct bio aware disksort.

Address a lot of stylistic issues brought up by bde.
2000-04-02 15:24:56 +00:00
Matthew Dillon
7c58e473f5 Commit the buffer cache cleanup patch to 4.x and 5.x. This patch fixes a
fragmentation problem due to geteblk() reserving too much space for the
    buffer and imposes a larger granularity (16K) on KVA reservations for
    the buffer cache to avoid fragmentation issues.  The buffer cache size
    calculations have been redone to simplify them (fewer defines, better
    comments, less chance of running out of KVA).

    The geteblk() fix solves a performance problem that DG was able reproduce.

    This patch does not completely fix the KVA fragmentation problems, but
    it goes a long way

Mostly Reviewed by: bde and others
Approved by: jkh
2000-03-27 21:29:33 +00:00
Yoshihiro Takahashi
01f6cfbae0 Supported non-512 bytes/sector format.
PR:		misc/12992
Submitted by:	chi@bd.mbn.or.jp (Chiharu Shibata) and
		Dmitrij Tejblum <tejblum@arc.hq.cti.ru>
Reviewed by:	Dmitrij Tejblum <tejblum@arc.hq.cti.ru>
2000-01-27 14:43:07 +00:00
Poul-Henning Kamp
ba4ad1fcea Give vn_isdisk() a second argument where it can return a suitable errno.
Suggested by:	bde
2000-01-10 12:04:27 +00:00
Boris Popov
37713edc2d Treat negative uio_offset value as eof (idea by: bde).
Prevent overflows by casting uio_offset to uoff_t.
Return correct error number if directory entry is broken.

Reviewed by:	bde
2000-01-08 10:45:54 +00:00
Boris Popov
70852092e8 Fix the mess with signed/unsigned longs and ints (inspired by bde).
Fix potential bug with directory reading.
Explicitly limit file size to 4GB (msdos can't handle larger files).
Slightly reorganize msdosfs_read() to reduce number of 'if's.
2000-01-02 03:30:42 +00:00
Peter Wemm
c447342094 Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"
is an application space macro and the applications are supposed to be free
to use it as they please (but cannot).  This is consistant with the other
BSD's who made this change quite some time ago.  More commits to come.
1999-12-29 05:07:58 +00:00
Boris Popov
687fce0361 Avoid to write garbage if uiomove fails. 1999-12-28 16:14:54 +00:00
Boris Popov
dc22f85f34 Fix an overflow in the msdosfs_read() function which exposed on the files
with size > 2GB.

PR:		15639
Submitted by:	Tim Kientzle <kientzle@acm.org>
Reviewed by:	phk
1999-12-28 15:34:23 +00:00
Boris Popov
499d3ffa94 It is possible that number of sectors specified in the BPB
will exceed FAT capacity. This will lead to kernel panic while other
systems just limit number of clusters.

PR:		4381, 15136
Reviewed by:	phk
1999-12-28 15:27:39 +00:00
Robert Watson
91f37dcba1 Second pass commit to introduce new ACL and Extended Attribute system
calls, vnops, vfsops, both in /kern, and to individual file systems that
require a vfsop_ array entry.

Reviewed by:	eivind
1999-12-19 06:08:07 +00:00
Eivind Eklund
762e6b856c Introduce NDFREE (and remove VOP_ABORTOP) 1999-12-15 23:02:35 +00:00
Poul-Henning Kamp
0429e37ade struct mountlist and struct mount.mnt_list have no business being
a CIRCLEQ.  Change them to TAILQ_HEAD and TAILQ_ENTRY respectively.

This removes ugly  mp != (void*)&mountlist  comparisons.

Requested by:   phk
Submitted by:   Jake Burkholder jake@checker.org
PR:             14967
1999-11-20 10:00:46 +00:00
Poul-Henning Kamp
698f9cf828 Next step in the device cleanup process.
Correctly lock vnodes when calling VOP_OPEN() from filesystem mount code.

Unify spec_open() for bdev and cdev cases.

Remove the disabled bdev specific read/write code.
1999-11-09 14:15:33 +00:00
Matthew Dillon
67ddfcaf69 More removals of vnode->v_lastr, replaced by preexisting seqcount
heuristic to detect sequential operation.

    VM-related forced clustering code removed from ufs in preparation for a
    commit to vm/vm_fault.c that does it more generally.

Reviewed by: David Greenman <dg@root.com>, Alan Cox <alc@cs.rice.edu>
1999-09-20 23:27:58 +00:00
Alfred Perlstein
c24fda81c9 Seperate the export check in VFS_FHTOVP, exports are now checked via
VFS_CHECKEXP.

Add fh(open|stat|stafs) syscalls to allow userland to query filesystems
based on (network) filehandle.

Obtained from:	NetBSD
1999-09-11 00:46:08 +00:00
Alfred Perlstein
5a5fccc8e7 All unimplemented VFS ops now have entries in kern/vfs_default.c that return
reasonable defaults.

This avoids confusing and ugly casting to eopnotsupp or making dummy functions.
Bogus casting of filesystem sysctls to eopnotsupp() have been removed.

This should make *_vfsops.c more readable and reduce bloat.

Reviewed by:	msmith, eivind
Approved by:	phk
Tested by:	Jeroen Ruigrok/Asmodai <asmodai@wxs.nl>
1999-09-07 22:42:38 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Poul-Henning Kamp
41d2e3e09e Introduce vn_isdisk(struct vnode *vp) function, and use it to test for diskness. 1999-08-25 12:24:39 +00:00
Bruce Evans
939cb7521a Initialise fsids with (user) device numbers again. Bitrot when dev_t's
were changed to pointers was obscured by casting dev_t's to longs.
fsids haven't even been comprised of longs since the Lite2 merge.
1999-08-23 21:07:13 +00:00
Poul-Henning Kamp
7dc5cd047f The bdevsw() and cdevsw() are now identical, so kill the former. 1999-08-13 10:29:38 +00:00
Poul-Henning Kamp
0ef1c82630 Decommision miscfs/specfs/specdev.h. Most of it goes into <sys/conf.h>,
a few lines into <sys/vnode.h>.

Add a few fields to struct specinfo, paving the way for the fun part.
1999-08-08 18:43:05 +00:00
Bruce Evans
a2a0b22c90 Don't set DE_ACCESS for unsuccessful reads.
Translated from: a similar fix in ufs_readwrite.c rev.1.61.

Don't forget to set DE_ACCESS for short reads.

Check for invalid (negative) offsets before checking for reads of
0 bytes, as in ufs, although checking for invalid offsets at all
is probably a bug.
1999-07-25 04:01:32 +00:00
Peter Wemm
919d1ea275 move <sys/systm.h> before <sys/buf.h> 1999-07-01 22:12:39 +00:00
Kirk McKusick
67812eacd7 Convert buffer locking from using the B_BUSY and B_WANTED flags to using
lockmgr locks. This commit should be functionally equivalent to the old
semantics. That is, all buffer locking is done with LK_EXCLUSIVE
requests. Changes to take advantage of LK_SHARED and LK_RECURSIVE will
be done in future commits.
1999-06-26 02:47:16 +00:00
Poul-Henning Kamp
2447bec829 Simplify cdevsw registration.
The cdevsw_add() function now finds the major number(s) in the
struct cdevsw passed to it.  cdevsw_add_generic() is no longer
needed, cdevsw_add() does the same thing.

cdevsw_add() will print an message if the d_maj field looks bogus.

Remove nblkdev and nchrdev variables.  Most places they were used
bogusly.  Instead check a dev_t for validity by seeing if devsw()
or bdevsw() returns NULL.

Move bdevsw() and devsw() functions to kern/kern_conf.c

Bump __FreeBSD_version to 400006

This commit removes:
        72 bogus makedev() calls
        26 bogus SYSINIT functions

if_xe.c bogusly accessed cdevsw[], author/maintainer please fix.

I4b and vinum not changed.  Patches emailed to authors.  LINT
probably broken until they catch up.
1999-05-31 11:29:30 +00:00
Poul-Henning Kamp
bfbb9ce670 Divorce "dev_t" from the "major|minor" bitmap, which is now called
udev_t in the kernel but still called dev_t in userland.

Provide functions to manipulate both types:
        major()         umajor()
        minor()         uminor()
        makedev()       umakedev()
        dev2udev()      udev2dev()

For now they're functions, they will become in-line functions
after one of the next two steps in this process.

Return major/minor/makedev to macro-hood for userland.

Register a name in cdevsw[] for the "filedescriptor" driver.

In the kernel the udev_t appears in places where we have the
major/minor number combination, (ie: a potential device: we
may not have the driver nor the device), like in inodes, vattr,
cdevsw registration and so on, whereas the dev_t appears where
we carry around a reference to a actual device.

In the future the cdevsw and the aliased-from vnode will be hung
directly from the dev_t, along with up to two softc pointers for
the device driver and a few houskeeping bits.  This will essentially
replace the current "alias" check code (same buck, bigger bang).

A little stunt has been provided to try to catch places where the
wrong type is being used (dev_t vs udev_t), if you see something
not working, #undef DEVT_FASCIST in kern/kern_conf.c and see if
it makes a difference.  If it does, please try to track it down
(many hands make light work) or at least try to reproduce it
as simply as possible, and describe how to do that.

Without DEVT_FASCIST I belive this patch is a no-op.

Stylistic/posixoid comments about the userland view of the <sys/*.h>
files welcome now, from userland they now contain the end result.

Next planned step: make all dev_t's refer to the same devsw[] which
means convert BLK's to CHR's at the perimeter of the vnodes and
other places where they enter the game (bootdev, mknod, sysctl).
1999-05-11 19:55:07 +00:00
Poul-Henning Kamp
4be2eb8c49 I got tired of seeing all the cdevsw[major(foo)] all over the place.
Made a new (inline) function devsw(dev_t dev) and substituted it.

Changed to the BDEV variant to this format as well: bdevsw(dev_t dev)

DEVFS will eventually benefit from this change too.
1999-05-08 06:40:31 +00:00
Poul-Henning Kamp
46eede0058 Continue where Julian left off in July 1998:
Virtualize bdevsw[] from cdevsw.  bdevsw() is now an (inline)
        function.

        Join CDEV_MODULE and BDEV_MODULE to DEV_MODULE (please pay attention
        to the order of the cmaj/bmaj arguments!)

        Join CDEV_DRIVER_MODULE and BDEV_DRIVER_MODULE to DEV_DRIVER_MODULE
        (ditto!)

(Next step will be to convert all bdev dev_t's to cdev dev_t's
before they get to do any damage^H^H^H^H^H^Hwork in the kernel.)
1999-05-07 10:11:40 +00:00
Peter Wemm
dfd5dee1b0 Add sufficient braces to keep egcs happy about potentially ambiguous
if/else nesting.
1999-05-06 18:13:11 +00:00
Poul-Henning Kamp
75c1354190 This Implements the mumbled about "Jail" feature.
This is a seriously beefed up chroot kind of thing.  The process
is jailed along the same lines as a chroot does it, but with
additional tough restrictions imposed on what the superuser can do.

For all I know, it is safe to hand over the root bit inside a
prison to the customer living in that prison, this is what
it was developed for in fact:  "real virtual servers".

Each prison has an ip number associated with it, which all IP
communications will be coerced to use and each prison has its own
hostname.

Needless to say, you need more RAM this way, but the advantage is
that each customer can run their own particular version of apache
and not stomp on the toes of their neighbors.

It generally does what one would expect, but setting up a jail
still takes a little knowledge.

A few notes:

   I have no scripts for setting up a jail, don't ask me for them.

   The IP number should be an alias on one of the interfaces.

   mount a /proc in each jail, it will make ps more useable.

   /proc/<pid>/status tells the hostname of the prison for
   jailed processes.

   Quotas are only sensible if you have a mountpoint per prison.

   There are no privisions for stopping resource-hogging.

   Some "#ifdef INET" and similar may be missing (send patches!)

If somebody wants to take it from here and develop it into
more of a "virtual machine" they should be most welcome!

Tools, comments, patches & documentation most welcome.

Have fun...

Sponsored by:   http://www.rndassociates.com/
Run for almost a year by:       http://www.servetheweb.com/
1999-04-28 11:38:52 +00:00
Poul-Henning Kamp
f711d546d2 Suser() simplification:
1:
  s/suser/suser_xxx/

2:
  Add new function: suser(struct proc *), prototyped in <sys/proc.h>.

3:
  s/suser_xxx(\([a-zA-Z0-9_]*\)->p_ucred, \&\1->p_acflag)/suser(\1)/

The remaining suser_xxx() calls will be scrutinized and dealt with
later.

There may be some unneeded #include <sys/cred.h>, but they are left
as an exercise for Bruce.

More changes to the suser() API will come along with the "jail" code.
1999-04-27 11:18:52 +00:00
Dmitrij Tejblum
f1cde7a270 Back out half of 1.32: don't print a message on every failed mount attempt.
It is too chatty and hardly useful. 2 mesages in somewhat usual cases are
left for now.
1999-03-28 23:00:33 +00:00
Matthew Dillon
831a80b0d5 Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile
1999-01-27 22:42:27 +00:00
Dmitrij Tejblum
57081f7b94 Now empty DOS filesystems default to long file names. Non-empty filesystems
without traces of Win95 default to short file names, as before.
1999-01-02 18:52:13 +00:00
Dmitrij Tejblum
9d9fdb45c5 Ensure that deHighClust in direntry always initialized.
Noticed by: 	Carl Mascott <cmascott@world.std.com>

Don't write access time of a file more than once per day. (Its precision is
1 day anyway). Don't try to write access and creation time in nonwin95 case.

Suggested by:	bde (long time ago).
1999-01-02 13:26:29 +00:00
Bruce Evans
289bdf33d3 Ifdefed conditionally used simplock variables. 1999-01-02 11:34:57 +00:00
Archie Cobbs
f1d19042b0 The "easy" fixes for compiling the kernel -Wunused: remove unreferenced static
and local variables, goto labels, and functions declared but not defined.
1998-12-07 21:58:50 +00:00
Dmitrij Tejblum
5c5926277e Honor MNT_NOATIME.
PR:		8383
Submitted by:	Carl Mascott <cmascott@world.std.com>
1998-11-29 22:38:57 +00:00
Dmitrij Tejblum
bad3d41d83 Support NT VFAT lower case flags.
PR:		8383
(Mostly) Submitted by:	Carl Mascott <cmascott@world.std.com>
1998-11-21 00:20:24 +00:00
Peter Wemm
1c5bb3eaa1 add #include <sys/kernel.h> where it's needed by MALLOC_DEFINE() 1998-11-10 09:16:29 +00:00
Peter Wemm
40c8cfe552 Use TAILQ macros for clean/dirty block list processing. Set b_xflags
rather than abusing the list next pointer with a magic number.
1998-10-31 15:31:29 +00:00
Peter Wemm
44fdad9976 Use vtruncbuf() rather than vinvalbuf() when shortening files. 1998-10-29 09:29:17 +00:00
Bruce Evans
65baf8f06b Don't follow null bdevsw pointers. The `major(dev) < nblkdev' test rotted
when bdevsw[] became sparse.  We still depend on magic to avoid having to
check that (v_rdev) device numbers in vnodes are not NODEV.
1998-10-25 19:26:18 +00:00
Dmitrij Tejblum
5d3e2869e5 Remove unused variable.
Pointed out by:	bde
1998-09-13 15:40:31 +00:00
Dmitrij Tejblum
e27b047ccf Fix a bug related to renaming in root directory. This bug reported by
Cejka Rudolf <cejkar@dcse.fee.vutbr.cz> on freebsd-current in Messaage-Id
<199807141023.MAA09803@kazi.dcse.fee.vutbr.cz>.

Reviewed by:	bde
1998-09-13 15:39:01 +00:00
Bruce Evans
8994ca3ce9 Removed statically configured mount type numbers (MOUNT_*) and all
references to them.

The change a couple of days ago to ignore these numbers in statically
configured vfsconf structs was slightly premature because the cd9660,
cfs, devfs, ext2fs, nfs vfs's still used MOUNT_* instead of the number
in their vfsconf struct.
1998-09-07 13:17:06 +00:00
Bruce Evans
0492d857d1 Removed unused includes. 1998-08-17 19:09:36 +00:00
Bruce Evans
ac1e407b32 Fixed printf format errors. 1998-07-11 07:46:16 +00:00
Julian Elischer
fd5d1124e2 VOP_STRATEGY grows an (struct vnode *) argument
as the value in b_vp is often not really what you want.
(and needs to be frobbed). more cleanups will follow this.
Reviewed by: Bruce Evans <bde@freebsd.org>
1998-07-04 20:45:42 +00:00
Dmitrij Tejblum
40b0939a15 Back out previous change. This behavior is at least completely
"susv2"-compliant.
1998-06-10 13:46:46 +00:00
Dmitrij Tejblum
75065d2cd8 Also return EOPNOTSUPP rather than EINVAL for not supported owner and group
changes.
1998-06-10 11:36:01 +00:00
Peter Wemm
c3a24f69d9 Return EOPNOTSUPP rather than EINVAL for flags that are not supported. 1998-06-10 06:30:31 +00:00
Dmitrij Tejblum
ffbdd68eba Fix typo in a comment. 1998-06-09 13:20:29 +00:00
Dmitrij Tejblum
af9f1d50ae Fix priority bug in previous commit.
Submitted by:	bde
1998-05-18 10:24:26 +00:00
Dmitrij Tejblum
011cdb576c Fix support for pre-Win95 filesystems: Make it possible to lookup just
created short file name. Don't insert "generation numbers".
1998-05-17 21:18:08 +00:00
Dmitrij Tejblum
058ef24617 Remove bogus LK_RETRY.
Submitted by:	bde
1998-05-17 21:03:35 +00:00
Bruce Evans
5097a20d6e Don't forget to clean up after an error reading the directory entry
in deget().
1998-05-17 18:09:28 +00:00
Bruce Evans
84de3fb77d Removed vestiges of pre-Lite2 locking. 1998-05-17 18:00:45 +00:00
Poul-Henning Kamp
c21410e119 s/nanoruntime/nanouptime/g
s/microruntime/microuptime/g

Reviewed by:	bde
1998-05-17 11:53:46 +00:00
Dmitrij Tejblum
191e6fd0b6 Fix off by ane error in previous commit.
This caused following commands:
	mkdir z
	cd z
	touch A B
	mv B A
corrupt the '..' entry in 'z'.

Reported by:	bde
1998-05-09 09:36:38 +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
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
Dmitrij Tejblum
c681be377c Use DFLTBSIZE instead of MAXBSIZE for pm_fatblksize.
In msdosfs_sync: spelling fix, formatting changes; fix MNT_LAZY (sync
modified denodes, don't sync device)

Mostly submitted by (and with hints from):	bde

Increase limit for maximum disk size: as far as I can see previous limit was
gratuitously too low.
1998-04-29 12:55:51 +00:00
Bruce Evans
c1087c1324 Support compiling with `gcc -ansi'. 1998-04-15 17:47:40 +00:00
Dmitrij Tejblum
206faeeef7 Add a missing LK_RETRY.
Noticed by: Bruce (almost 2 monts ago)

Remove a debugging printf.
1998-04-15 11:04:53 +00:00
Poul-Henning Kamp
7cd5051bec Use random() rather then than homegrown stuff. 1998-04-06 11:39:04 +00:00
Andrey A. Chernov
aaf0bb1961 Print explanation diagnostics when mount is impossible
Submitted by: Dmitrij Tejblum <dima@tejblum.dnttm.rssi.ru>
1998-04-05 13:10:11 +00:00
Poul-Henning Kamp
00af9731c9 Time changes mark 2:
* Figure out UTC relative to boottime.  Four new functions provide
      time relative to boottime.

    * move "runtime" into struct proc.  This helps fix the calcru()
      problem in SMP.

    * kill mono_time.

    * add timespec{add|sub|cmp} macros to time.h.  (XXX: These may change!)

    * nanosleep, select & poll takes long sleeps one day at a time

Reviewed by:    bde
Tested by:      ache and others
1998-04-04 13:26:20 +00:00
Andrey A. Chernov
32d3966f1a Fix dead hang writing to FAT
Submitted by: Dmitrij Tejblum <dima@tejblum.dnttm.rssi.ru>
1998-03-28 07:22:03 +00:00
Poul-Henning Kamp
a0502b19d4 Add two new functions, get{micro|nano}time.
They are atomic, but return in essence what is in the "time" variable.
gettime() is now a macro front for getmicrotime().

Various patches to use the two new functions instead of the various
hacks used in their absence.

Some puntuation and grammer patches from Bruce.

A couple of XXX comments.
1998-03-26 20:54:05 +00:00
KATO Takenori
a8e4411603 Deleted 1024bytes/sector floppy code for PC-98 arch. The
1024bytes/sector code has not worked for long time and it should be
re-implemented.
1998-03-20 02:33:42 +00:00
Julian Elischer
b1897c197c 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
Mike Smith
651ae11e2f 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
Mike Smith
3f75478c2e Patch to the last commit; attempt to unspam stuff from NetBSD.
Submitted by:	Dmitrij Tejblum <dima@tejblum.dnttm.rssi.ru>
1998-03-03 02:50:24 +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
Mike Smith
ea0665cd2b Fix mmap() on msdosfs. In the words of the submitter:
|In the process of evaluating the getpages/putpages issues I discovered
|that mmap on MSDOSFS does not work. This is because I blindly merged
|NetBSD changes in msdosfs_bmap and msdosfs_strategy. Apparently, their
|blocksize is always DEV_BSIZE (even in files), while in FreeBSD
|blocksize in files is v_mount->mnt_stat.f_iosize (i.e. clustersize in
|MSDOSFS case). The patch is below.

Submitted by:	Dmitrij Tejblum <dima@tejblum.dnttm.rssi.ru>
1998-03-01 21:26:09 +00:00
Mike Smith
cce0eefd5a Fix a problem with the conversion of Unix filenames into the VFAT
namespace.
Submitted by:	Dmitrij Tejblum <dima@tejblum.dnttm.rssi.ru>
1998-02-27 12:22:22 +00:00
Mike Smith
69a36f24fb Fixes for some bugs in the VFAT/FAT32 support:
- 'mv longnamedfile1 longnamedfile2' would cause longnamedfile2 to lose its
   long name.
 - Long names have trailing spaces/dots stripped for lookup as well as
   assignment.
 - A lockup when the mdsosfs was accessed from within the Linux emulator is fixed.
 - A bug whereby long filenames were recognised by Microsoft operating systems but
   not FreeBSD is fixed.

Submitted by:	Dmitrij Tejblum <dima@tejblum.dnttm.rssi.ru>
1998-02-26 06:45:46 +00:00
Andrey A. Chernov
5114f1d7c6 Back out "always view in lowercase" part
Return to previous variant "comparing in lowercase" in winChkName
1998-02-24 14:13:16 +00:00
Andrey A. Chernov
7391f6114e Implement loadable DOS<->local conversion tables for DOS names
Always create DOS name in uppercase
Always view DOS name in lowercase
1998-02-23 16:44:37 +00:00
KATO Takenori
efa0ac5b6f Fix signatures of NEC's DOS formats.
Submitted by:	Takahashi Yoshihiro <nyan@wyvern.cc.kogakuin.ac.jp>
1998-02-23 14:57:50 +00:00
Andrey A. Chernov
64fb806ca2 Oops, add missing bcopy of upper->lower table 1998-02-23 09:59:08 +00:00
Andrey A. Chernov
b998efa98d Implement loadable upper->lower local conversion table 1998-02-23 09:39:29 +00:00
Andrey A. Chernov
a4f93748d2 Reduce new arguments number added in my changes 1998-02-22 18:00:54 +00:00
Andrey A. Chernov
4d63452f4e Add Unicode support to winChkName, now lookup works! 1998-02-22 17:26:27 +00:00
Andrey A. Chernov
13df76f25a Implement loadable local<->unicode file names conversion
Note: it produce correct names only for Win95, DOS names are still
incorrect and need similar work
mount_msdos support coming soon
1998-02-22 15:09:54 +00:00
Andrey A. Chernov
794d43e27f Replace all unknown Unicode characters with '?' in win->unix mapping 1998-02-22 12:22:23 +00:00
Andrey A. Chernov
2b5b6623f6 Add initial support to map 0x4XX Unicode Cyrillic range names:
only win->unix part is implemented at this time with 256-byte
table defaulted to KOI8-R (will be loadable in future).
Since back mapping not supported yet, you'll get "No such file or directory"
on each Cyrillic name with 'ls -l', only 'echo *' work at this moment.
Teach current code to understand Unicode a bit.
1998-02-22 12:05:42 +00:00
Bruce Evans
39e4376ba7 Removed unused #includes. 1998-02-20 13:11:54 +00:00
Jordan K. Hubbard
952a6212d9 Update MSDOSFS code using NetBSD's msdosfs as a guide to support
FAT32 partitions.  Unfortunately, we looked around here at
Walnut Creek CDROM for any newer FAT32-supporting versions
of Win95 and we were unsuccessful; only the older stuff here.
So this is untested beyond simply making sure it compiles and
someone with access to an actual FAT32 fs will have
to let us know how well it actually works.
Submitted by:	Dmitrij Tejblum <dima@tejblum.dnttm.rssi.ru>
Obtained from:	NetBSD
1998-02-18 09:28:47 +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
675ea6f083 Unspammed nested include of <vm/vm_zone.h>. 1997-12-27 02:56:39 +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
Bruce Evans
ef91bd5734 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
Poul-Henning Kamp
dba3870c10 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
Poul-Henning Kamp
d54d34b533 Make a set of VOP standard lock, unlock & islocked VOP operators, which
depend on the lock being located at vp->v_data.  Saves 3x3 identical
vop procs, more as the other filesystems becomes lock aware.
1997-10-17 12:36:19 +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
Poul-Henning Kamp
6a525123aa Hmm, realign the vnops into two columns. 1997-10-15 10:05:29 +00:00
Poul-Henning Kamp
539ef70c2d 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
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
Peter Wemm
a6aeade2c4 Convert select -> poll.
Delete 'always succeed' select/poll handlers, replaced with generic call.
Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
Poul-Henning Kamp
b84d2921af Fix a type in a comment and remove some checks now done centrally. 1997-09-10 19:44:36 +00:00
Bruce Evans
e4ba6a82b0 Removed unused #includes. 1997-09-02 20:06:59 +00:00
Poul-Henning Kamp
0fa2443f0e Uncut&paste cache_lookup().
This unifies several times in theory indentical 50 lines of code.

The filesystems have a new method: vop_cachedlookup, which is the
meat of the lookup, and use vfs_cache_lookup() for their vop_lookup
method.  vfs_cache_lookup() will check the namecache and pass on
to the vop_cachedlookup method in case of a miss.

It's still the task of the individual filesystems to populate the
namecache with cache_enter().

Filesystems that do not use the namecache will just provide the
vop_lookup method as usual.
1997-08-26 07:32:51 +00:00
John Dyson
a5db4bf475 Back out some incorrect changes that was worse than the original bug. 1997-08-26 04:36:27 +00:00
John Dyson
89721f6f1a This is a trial improvement for the vnode reference count while on the vnode
free list problem.  Also, the vnode age flag is no longer used by the
vnode pager.  (It is actually incorrect to use then.)  Constructive
feedback welcome -- just be kind.
1997-08-22 03:56:37 +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
Poul-Henning Kamp
8a40593f4d Remove redundant check for vp == dvp (done in VFS before calling). 1997-05-17 18:32:53 +00:00
Bruce Evans
3bea22184e Get the declaration of `struct dirent' from <sys/dirent.h>, not from
<sys/dir.h>.

Removed unused #include.

Fixed type and order of struct members in pseudo-declaration of `struct
vop_readdir_args'.
1997-04-10 14:56:49 +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
Peter Wemm
cc9d89901f Restore the lost MNT_LOCAL flag twiddle. Lite2 has a different mechanism
of setting it (compiled into vfs_conf.c), but we have a dynamic system
in place.  This could probably be better done via a runtime configure
flag in the VFS_SET() VFS declaration, perhaps VFCF_LOCAL, and have the
VFS code propagate this down into MNT_LOCAL at mount time.  The other FS's
would need to be updated, havinf UFS and MSDOSFS filesystems without
MNT_LOCAL breaks a few things..  the man page rebuild scans for local
filesystems and currently fails, I suspect that other tools like find
and tar with their "local filesystem only" modes might be affected.
1997-03-18 19:50:12 +00:00
Bruce Evans
60e0f7e23d Don't export kernel interfaces to applications. msdosfs_mount probably
didn't compile before this change.

Added idempotency ifdef.
1997-03-03 17:36:11 +00:00
Bruce Evans
af3f60d5a8 Updated msdosfs to use Lite2 vfs configuration and Lite2 locking. It
should now work as (un)well as before the Lite2 merge.
1997-02-26 14:23:16 +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
Mike Pritchard
8092a8e143 Make this compile without warnings after the Lite2 merge:
- *fs_init routines now take a "struct vfsconf * vfsp" pointer
  as an argument.
- Use the correct type for cookies.
- Update function prototypes.

Submitted by:	bde
1997-02-12 16:31:27 +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
Bruce Evans
fdd71f982f Don't synchronously update the directory entry at the end of every
successful write.  Only do it for the IO_SYNC case (like ufs).  On
one of my systems, this speeds up `iozone 24 512' from 32K/sec
(1/128 as fast as ufs) to 2.8MB/sec (7/10 as fast as ufs).

Obtained from:	partly from NetBSD
1996-12-25 20:15:12 +00:00
Bruce Evans
e73bdb51f7 Fixed an off by 1 error in unix2dostime(). The first day of each month
was converted to the last day of the previous month.  This bug was
introduced in the optimizations in rev.1.4.
1996-12-04 13:42:09 +00:00
John Dyson
39b1a97c77 MSDOS FS used to allocate a buffer before extending the VM object. In
certain error conditions, it is possible for pages to be left allocated
in the object beyond it's end.  It is generally bad practice to allocate
pages beyond the end of an object.
1996-10-02 05:01:17 +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
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
Andrey A. Chernov
6a1ae88452 bzero reserved field into directory entry, junk here cause
scandisk error under Win95
1996-07-28 07:58:55 +00:00
Satoshi Asami
ad63a118b2 The Great PC98 Merge.
All new code is "#ifdef PC98"ed so this should make no difference to
PC/AT (and its clones) users.

Ok'd by:	core
Submitted by:	FreeBSD(98) development team
1996-06-14 11:02:28 +00:00
David Greenman
2f9bae59d6 Moved the fsnode MALLOC to before the call to getnewvnode() so that the
process won't possibly block before filling in the fsnode pointer (v_data)
which might be dereferenced during a sync since the vnode is put on the
mnt_vnodelist by getnewvnode.

Pointed out by Matt Day <mday@artisoft.com>
1996-06-12 03:37:57 +00:00
Andrey A. Chernov
b0b321257d Fix adjkerntz expression priority.
Make filetimes the same as DOS times for UTC cmos clock.
1996-04-05 18:59:06 +00:00
Andrey A. Chernov
ef5fdc52f5 Don't adjust file times for UTC clock to have the same timestamps
for DOS/FreeBSD.
1996-04-05 16:31:49 +00:00
Gary Palmer
c94554b47d add a `Warning:' to the message saying that the root directory is not a
multiple of the clustersize in length to try and reduce the number
of questions we get on the subject.
1996-04-03 23:05:40 +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
Garrett Wollman
01733a9b6d Convert QUOTA to new-style option. 1996-01-05 18:31:58 +00:00
David Greenman
efeaf95a41 Untangled the vm.h include file spaghetti. 1995-12-07 12:48:31 +00:00
Bruce Evans
58c27bcf99 Added prototypes. 1995-12-03 16:42:02 +00:00
Bruce Evans
af48260143 Moved declarations for static functions to the correct place (not in a
header) and cleaned them up.
1995-11-16 11:48:10 +00:00
Bruce Evans
ebbcda3ef4 Fixed getdirentries() on nfs mounted msdosfs's. No cookies were returned
for certain common combinations of directory sizes, cluster sizes, and i/o
sizes (e.g., 4K, 4K, and 4K).  The fix in rev. 1.21 was incomplete.

Reviewed by:	dfr
Obtained from:	party from NetBSD
1995-11-13 18:47:40 +00:00
Bruce Evans
f57e65478d Introduced a type `vop_t' for vnode operation functions and used
it 1138 times (:-() in casts and a few more times in declarations.
This change is null for the i386.

The type has to be `typedef int vop_t(void *)' and not `typedef
int vop_t()' because `gcc -Wstrict-prototypes' warns about the
latter.  Since vnode op functions are called with args of different
(struct pointer) types, neither of these function types is any use
for type checking of the arg, so it would be preferable not to use
the complete function type, especially since using the complete
type requires adding 1138 casts to avoid compiler warnings and
another 40+ casts to reverse the function pointer conversions before
calling the functions.
1995-11-09 08:17:23 +00:00
Poul-Henning Kamp
30ffadf397 missed one static thingie. 1995-11-07 14:10:19 +00:00
Poul-Henning Kamp
7fefffee96 staticize private parts. 1995-11-07 14:06:45 +00:00
Paul Traina
e42f2d599a Pad out MSDOS boot block to 512 bytes (bugfix only)
Submitted by: Andreas Haakh, ah@alman.RoBIN.de
1995-10-31 20:54:33 +00:00
Poul-Henning Kamp
a98ca4699e Second batch of cleanup changes.
This time mostly making a lot of things static and some unused
variables here and there.
1995-10-29 15:33:36 +00:00
David Greenman
d68a41903e Moved the filesystem read-only check out of the syscalls and into the
filesystem layer, as was done in lite-2. Merged in some other cosmetic
changes while I was at it. Rewrote most of msdosfs_access() to be more
like ufs_access() and to include the FS read-only check.

Obtained from: partially from 4.4BSD-lite2
1995-10-22 09:32:48 +00:00
Bruce Evans
821692d618 Return EINVAL instead of panicing for rename("dir1", "dir2/..").
Fixes part of PR 760.

This bug seems to be very old.
1995-10-07 10:14:12 +00:00
John Dyson
c83ebe7781 Added VOP_GETPAGES/VOP_PUTPAGES and also the "backwards" block count
for VOP_BMAP.  Updated affected filesystems...
1995-09-04 00:21:16 +00:00