Commit Graph

64 Commits

Author SHA1 Message Date
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
Bruce Evans
5d81aaee02 Fix bogus arg (&p instead of p) in the call to VOP_ACCESS() from
msdosfs_setattr().  The bug was benign because the arg isn't used.
1995-08-25 20:12:23 +00:00
Doug Rabson
d2f25f26b5 Make sure that a non-null cookie vector is returned even if there were no
valid entries in the block.  Doing otherwise confuses the nfs server.
1995-08-03 12:17:35 +00:00
Doug Rabson
94a8606f1b Add support for the va_filerev attribute required by NFSv3. 1995-08-02 13:00:40 +00:00
David Greenman
4777741358 Removed my special-case hack for VOP_LINK and fixed the problem with the
wrong vp's ops vector being used by changing the VOP_LINK's argument order.
The special-case hack doesn't go far enough and breaks the generic
bypass routine used in some non-leaf filesystems. Pointed out by Kirk
McKusick.
1995-08-01 18:51:02 +00:00
David Greenman
9879652657 Fixed VOP_LINK argument order botch. 1995-06-28 07:06:55 +00:00
Rodney W. Grimes
d3628763db Merge RELENG_2_0_5 into HEAD 1995-06-11 19:33:05 +00:00
Rodney W. Grimes
9b2e535452 Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
Bruce Evans
d8762fa6a0 Submitted by: Mike Pritchard <pritc003@maroon.tc.umn.edu>
msdosfs_lookup() did no validation to see if the caller was validated
to delete/rename/create files.  msdosfs_setattr() did no validation
to see if the caller was allowed to change the file permissions (turn
on/off the write bit) or update the file modification time (utimes).

The routines were fixed to validate the calls just like ufs does.
1995-05-09 16:30:45 +00:00
Andrey A. Chernov
d99adf96e5 Fix link sys call
Submitted by: pritc003@maroon.tc.umn.edu
1995-04-11 18:32:17 +00:00
Bruce Evans
2360b9bfc7 Submitted by: Mike Pritchard <pritc003@maroon.tc.umn.edu>
Fix PR 303: msdosfs: moving a file into another directory causes panic.

" ... the code that does the rename already has the denode
locked when msdosfs_hashins() gets called, resulting in the panic
when the routine attempts to lock the denode again.
...
The attached patch changes the msdosfs_hashins() routine to not lock the
denode.  The caller is now resposible for obtaining the lock instead
of having msdosfs_hashins() do it for them."
1995-04-11 17:13:17 +00:00
Bruce Evans
82f196916e Submitted by: Wolfgang Solfrank <ws@tools.de>
Fix off-by-1-sector error in the range checking for the end of the root
directory.  It was possible for the root directory to overwrite the FAT.
1995-04-11 16:43:20 +00:00
Andrey A. Chernov
aeab1b50e3 Fix timestamps when using Wall CMOS clock,
optimize dos2unixtime()
Submitted by: pritc003@maroon.tc.umn.edu
1995-03-29 18:48:06 +00:00
David Greenman
edf8a81561 Removed redundant newlines that were in some panic strings. 1995-03-19 14:29:26 +00:00
David Greenman
0f52ba3503 Removed bogus, commented out, call to vnode_pager_uncache(). 1995-03-19 12:11:13 +00:00
Bruce Evans
b5e8ce9f12 Add and move declarations to fix all of the warnings from `gcc -Wimplicit'
(except in netccitt, netiso and netns) and most of the warnings from
`gcc -Wnested-externs'.  Fix all the bugs found.  There were no serious
ones.
1995-03-16 18:17:34 +00:00
Bruce Evans
24d4540cff Use the correct block number for updating the backup copy of the FAT when
deleting a file.  Deleting a large file used to scramble the backup copy.
1995-02-10 18:39:45 +00:00
Andreas Schulz
afb7bd3e81 Kill the comment in a comment to shut up the compiler. 1995-01-29 01:27:58 +00:00
David Greenman
0d94caffca These changes embody the support of the fully coherent merged VM buffer cache,
much higher filesystem I/O performance, and much better paging performance. It
represents the culmination of over 6 months of R&D.

The majority of the merged VM/cache work is by John Dyson.

The following highlights the most significant changes. Additionally, there are
(mostly minor) changes to the various filesystem modules (nfs, msdosfs, etc) to
support the new VM/buffer scheme.

vfs_bio.c:
Significant rewrite of most of vfs_bio to support the merged VM buffer cache
scheme.  The scheme is almost fully compatible with the old filesystem
interface.  Significant improvement in the number of opportunities for write
clustering.

vfs_cluster.c, vfs_subr.c
Upgrade and performance enhancements in vfs layer code to support merged
VM/buffer cache.  Fixup of vfs_cluster to eliminate the bogus pagemove stuff.

vm_object.c:
Yet more improvements in the collapse code.  Elimination of some windows that
can cause list corruption.

vm_pageout.c:
Fixed it, it really works better now.  Somehow in 2.0, some "enhancements"
broke the code.  This code has been reworked from the ground-up.

vm_fault.c, vm_page.c, pmap.c, vm_object.c
Support for small-block filesystems with merged VM/buffer cache scheme.

pmap.c vm_map.c
Dynamic kernel VM size, now we dont have to pre-allocate excessive numbers of
kernel PTs.

vm_glue.c
Much simpler and more effective swapping code.  No more gratuitous swapping.

proc.h
Fixed the problem that the p_lock flag was not being cleared on a fork.

swap_pager.c, vnode_pager.c
Removal of old vfs_bio cruft to support the past pseudo-coherency.  Now the
code doesn't need it anymore.

machdep.c
Changes to better support the parameter values for the merged VM/buffer cache
scheme.

machdep.c, kern_exec.c, vm_glue.c
Implemented a seperate submap for temporary exec string space and another one
to contain process upages. This eliminates all map fragmentation problems
that previously existed.

ffs_inode.c, ufs_inode.c, ufs_readwrite.c
Changes for merged VM/buffer cache.  Add "bypass" support for sneaking in on
busy buffers.

Submitted by:	John Dyson and David Greenman
1995-01-09 16:06:02 +00:00