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225 Commits

Author SHA1 Message Date
mrg
1a8c7604f4 initial import of the new virtual memory system, UVM, into -current. 
UVM was written by chuck cranor <chuck@maria.wustl.edu>, with some
minor portions derived from the old Mach code.  i provided some help
getting swap and paging working, and other bug fixes/ideas.  chuck
silvers <chuq@chuq.com> also provided some other fixes.

this is the rest of the MI portion changes.

this will be KNF'd shortly.  :-)
 1998-02-05 07:59:28 +00:00
thorpej
df7ad322f2 Nuke spurious semicolon, from Konrad Schroder <perseant@hhhh.org>. 1998-01-13 03:30:39 +00:00
bouyer
459fd0e350 When allocating an inode with dtime set, also bzero e2di_blocks[]. 1997-10-27 14:43:41 +00:00
bouyer
89f2b833f4 Uses ext2fs_vinit not ufs_vinit. 
In ext2fs, an inode is deleted either when mode == 0 or dtime != 0. If
  dtime != 0, reset others fields before using the inode, or we could end
  up with the wrong v_op in ext2fs_vinit.
While I'm there, kill a unused variable in ext2fs_readwrite
 1997-10-23 11:41:16 +00:00
christos
e12c721705 Add missing cast for nlink_t 1997-10-17 02:05:34 +00:00
mjacob
949982f2a4 In calculating the f_bavail field, don't take 32 bit quantities and 
multiply them by 90 (to be divided by 100) and expect them to be sane
for very large values (I was getting a negative 'avail' count).
 1997-10-16 18:29:11 +00:00
enami
499f056402 Backout last change for ufs_readlink. The permission check is now done 
in vfs layer.
 1997-10-11 00:10:57 +00:00
bouyer
f5d86626ec Update for 64 bits directory cookies. 1997-10-10 10:00:12 +00:00
fvdl
6a0575f33e Last arg to VOP_READDIR became off_t. 1997-10-10 02:13:42 +00:00
bouyer
6ab3092b11 Add byte-swapping functions (bswap16, bswap32, bswap64) to libkern. 
Only assembly version for i386 bswap16 and bswap32 for now (bswap64 uses
bswap32). Contribution of assembly versions of these are welcome.
Add byte-swapping of ext2fs metadata for big-endian systems.
Tested on i386 and sparc.
 1997-10-09 15:42:19 +00:00
enami
164890a9fc In the function ufs_readlink(), check read permission before 
reading link.
 1997-10-03 16:45:49 +00:00
lukem
319d918511 prototype lfs_cksum ifndef KERNEL 1997-09-15 06:44:48 +00:00
bouyer
09cf6dacdf Fix bad cut&paste from ufs code: we can't align uio_resid to a directory 
block size boundary, because size of the returned dir entry may be bigger than
the one read.
 1997-08-04 09:11:00 +00:00
bouyer
3bf1a6ad00 ufs_getlbns needs an array of NIADDR+1 struct indir's, and not NIADDR. 
This fixes a panic due to stack corruption when reading larges files.
 1997-07-24 17:18:03 +00:00
fvdl
e351013e56 Fix messed up RCS Id. 1997-07-22 14:36:31 +00:00
fvdl
f2377e977b When allocating a new block, store the result obtained through counting 
indirect blocks in a 64 bit integer, to prevent overflows when computing
NINDIR^3
 1997-07-17 23:40:07 +00:00
bouyer
1d5e0e6e91 Add a lock locking around inode hashing. 1997-07-17 16:56:44 +00:00
fvdl
286a3374b9 Give the hash lock a better name, it's not just ffs that uses it. 1997-07-15 19:08:18 +00:00
fvdl
5d96e77ef6 Get locking around inode hashing right. 1997-07-07 23:37:36 +00:00
fvdl
acffafa288 Oops, I messed up the lock. Reverting it until I have time to fix it, 
to avoid people getting trouble after the supscan hits.
 1997-07-07 11:47:06 +00:00
fvdl
b362aa16be Put lock around inode hashing, because getnewvnode or MALLOC might block, 
creating race conditions.
 1997-07-06 12:43:43 +00:00
drochner
8c0a9bab00 Don't cast 64bit (off_t) file sizes to vm_offset_t (32bit on many 
architectures), truncate them intelligently instead.
The truncation is done centralized in vnode_pager.c.
This prevents from wrap-over effects when parts of large (>2^32 byte) files
are mmapped.
Don't allow to mmap above the numerical range of vm_offset_t.
This is considered a temporary solution until the vm system handles the
object sizes/offsets more cleanly.
 1997-07-04 20:22:09 +00:00
bouyer
77d5755416 Sync with ufs/ufs: 
Avoid panic triggered by rename("foo/", "bar/..") (From Mycroft, via christos)
 1997-07-01 07:34:03 +00:00
fvdl
9b30a6a4e5 Return EPERM for an attempt to remove a directory with VOP_REMOVE, not EISDIR. 1997-06-30 20:16:31 +00:00
fvdl
822371a987 Return EPERM, not EISDIR for an attempt to remove a directory. 1997-06-30 20:13:44 +00:00
christos
b59135a6fb Avoid panic triggered by rename("foo/", "bar/..") (From Mycroft) 1997-06-26 22:23:17 +00:00
pk
2e8a55e122 TIMESPEC_TO_TIMEVAL => TIMEVAL_TO_TIMESPEC 1997-06-13 08:59:51 +00:00
mrg
295af85e9e remove swap configuration. 1997-06-12 17:12:17 +00:00
bouyer
76c414a957 Add support for ext2fs, this needed a few modifications to ufs/ufs/inode.h: 
- added an "union inode_ext" to struct inode, for the per-fs extentions.
  For now only ext2fs uses it.
- i_din is now an union:
	union {
		struct  dinode ffs_din; /* 128 bytes of the on-disk dinode. */
		struct ext2fs_dinode e2fs_din; /* 128 bytes of the on-disk dinode. */
	} i_din
  Added a lot of #define i_ffs_* and i_e2fs_* to access the fields.
- Added two macros: FFS_ITIMES and EXT2FS_ITIMES. ITIMES calls the rigth
  macro, depending on the time of the inode. ITIMES is used where necessary,
  FFS_ITIMES and EXT2FS_ITIMES in other places.
 1997-06-11 10:09:37 +00:00
bouyer
9e3c291da4 The ext2fs layer, based on the ffs/ufs one. Uses a few functions from 
sys/ufs/ufs/
 1997-06-11 09:33:37 +00:00
kleink
9c03d5cf55 When doing a CREATE, RENAME or DELETE w/ DOWHITEOUT and ISWHITEOUT lookup on a 
non-existent file and the end of the pathname is reached, and this `current'
directory resides on a read-only mounted file system, don't update/prepare
its inode for the actual operation but return EROFS.
 1997-05-12 19:04:16 +00:00
mycroft
e3f99a9397 Pass the vnode type to vaccess(), and use it when checking VEXEC. Make sure 
that the mode bits passed to vaccess() and returned by foo_getattr() contain
only permission bits.
 1997-05-08 16:19:43 +00:00
mycroft
837a72363d VEXEC -> VLOOKUP, as appropriate. 1997-05-08 10:57:17 +00:00
mikel
55f53d7fdb return EPERM from ufs_setattr() if an attempt is made by non-superuser 
to change superuser-only file flags; fixes PR kern/3491.
 1997-04-23 05:47:54 +00:00
kleink
9c16cd8a46 Implement a POSIX compliant genfs VOP_SEEK() and use it in the appropriate 
places; by Chris G. Demetriou and myself.
 1997-04-11 21:52:00 +00:00
kleink
2cfcc6c893 Return immediately upon zero byte reads, as updating st_atime in this case 
violates POSIX.1 read() semantics.
 1997-04-04 14:21:32 +00:00
mikel
b81091e992 POSIX.1 specifies that a failed link() to a directory must return EPERM, 
and EMLINK was not documented; from Klaus Klein in PR standards/3397.
Also documented EOPNOTSUPP for filesystems that don't support hard links.
 1997-03-27 07:30:25 +00:00
mycroft
66c4e32b11 Just increment the generation count. Using the time is bogus and defeats 
fsirand(8).
 1997-03-10 06:18:28 +00:00
fvdl
8b21bbed9b Implement similar fix as in the NQNFS fix from BSDI, to avoid race conditions 
when unmounting. It cleans up the loop a bit too.
 1997-02-22 03:25:05 +00:00
thorpej
727078d31e - Add ffs_mountroot to ffs_vfsops. 
- Only attempt to mount a root FFS on a DV_DISK class device.
 1997-01-31 03:05:31 +00:00
tls
d0c43309b5 add support for noatime mount flag 1997-01-30 09:52:26 +00:00
tls
0024ac02cf Correct old inode flag names in comment, and reformat for 80 character screen 1997-01-27 10:30:14 +00:00
cgd
90688fce27 Change the second and third args to struct vfsops' (*vfs_mount)() to 
'const char *', and 'void *', respectively.  The second arg is taken directly
from user arguments, and is const there, so must be const in the prototypes
and functions.  The third arg is also taken directly from user arguments.
It doesn't have to be changed, but since it's cleaner to keep the type
the same as the user arg's type, and I'm already making the 'const char *'
change...
 1996-12-22 10:10:12 +00:00
is
ebe1c82eda Make the struct lfs 512 bytes long on 32bit machines whose compiler doesn't 
align 32bit integers. Use explicit sized typing at some other places.

XXX This still won't fix lfs for 64bit machines, as we have some
assumptions about sizeof(pointer)=sizeof(u_int32_t) in here, and (if I
looked right) a misaligned u_int64_t. The right fix (to cite cgd) will
be to seperate on-disk-representation from in-core, but I don't have
the time (at the moment) to do this.
 1996-12-05 19:01:46 +00:00
cgd
f6e4567c57 cast int64_t-sized types to "long long" before printing them with %qd. 
gcc thinks that the 'q' modifier describes a "long long", and so -Wformat
whines when printing with 'q' on the alpha, since int64_t-sized types are
done with variations on "long" rather than "long long".
 1996-11-15 23:11:56 +00:00
thorpej
34e2fb3bb6 Performance enhancement from Kirk McKusick <mckusick@McKusick.COM>: 
When freeing an indirect block, there is no need to write it (synchronously,
no less!) before tossing it.
 1996-11-06 03:02:59 +00:00
christos
90c7de0919 revert previous kprintf changes 1996-10-12 21:58:44 +00:00
christos
de1b2b437e printf -> kprintf, sprintf -> ksprintf 1996-10-10 17:16:17 +00:00
christos
2dff852a85 Add prototype for quotactl. 1996-09-28 19:07:06 +00:00
christos
9cdf304505 Make this compile cleanly from userland (fsck_ffs). 1996-09-20 22:14:59 +00:00
mycroft
2bc736661a Implement poll(2). 1996-09-07 12:40:22 +00:00
mycroft
c52352c819 Add a set of generic file system operations that most file systems use. 
Also, fix some time stamp bogosities.
 1996-09-01 23:47:48 +00:00
mycroft
261382c331 Change VOP_UPDATE() semantics: 
* Make 2nd and 3rd args timespecs, not timevals.
* Consistently pass a Boolean as the 4th arg (except in LFS).
Also, fix ffs_update() and lfs_update() to actually change the nsec fields.
 1996-05-11 18:26:27 +00:00
pk
44af669e3d Appease gcc: unused variables if !QUOTA 1996-03-25 12:53:35 +00:00
christos
48fda0b4ca Fix printf format strings 1996-03-17 02:16:18 +00:00
scottr
c9f7e94a5c Remove hack to work around <sys/dirent.h> DIRSIZ conflict 1996-03-09 19:42:41 +00:00
gwr
331e377b30 Need to #undef DIRSIZ from <sys/dirent.h> before we redefine it. 1996-02-29 20:09:56 +00:00
cgd
9c95634273 in mfs_print: mfs_baseoff is a pointer, should be printed as %p, and 
should NOT be cast to unsigned int.
 1996-02-21 00:06:45 +00:00
christos
7e24291099 Protect include in lfs_cksum.c so that it can be used by userland programs. 1996-02-16 02:22:05 +00:00
christos
e2c2c98181 di_size is a quad and needs %qu not %lu 1996-02-12 22:08:47 +00:00
christos
11e9f2ce94 Add fwd declaration for struct ucred 1996-02-12 15:20:12 +00:00
christos
fb9b45b582 put back traditional symlink change that somehow got lost. 1996-02-11 02:06:13 +00:00
christos
9fe380e1ab cross that t and dot that i. Typo in last commit. 1996-02-09 23:30:19 +00:00
christos
273fa18bff ufs prototype changes 1996-02-09 22:36:00 +00:00
christos
573481f5fc mfs prototypes 1996-02-09 22:31:27 +00:00
christos
7bd9e243f3 lfs prototypes 1996-02-09 22:28:45 +00:00
christos
ec3d880232 ffs prototypes 1996-02-09 22:22:18 +00:00
mycroft
53fccab940 Fix vop_link, vop_symlink, and vop_remove semantics in several ways: 
* Change the argument names to vop_link so they actually make sense.
* Implement vop_link and vop_symlink for all file systems, so they do proper
  cleanup.
* Require the file system to decide whether or not linking and unlinking of
  directories is allowed, and disable it for all current file systems.
 1996-02-09 14:45:36 +00:00
jtc
b73662fea2 Revert to sane symlink semantics. This is something we should have done 
long ago.  Fixes many PRs.
 1996-02-07 17:01:25 +00:00
jtc
dd05bd5124 Rename struct timespec fields to conform to POSIX.1b 1996-02-01 00:04:52 +00:00
cgd
b567511c78 Fix from Lite-2: when reloading the file system, save fs_maxcluster and 
the old summary structure pointers, and recalculate cluster per cyl. grp.
information.
 1995-12-19 23:27:53 +00:00
mycroft
7edc899fdd ffs -> ufs 1995-11-11 22:00:15 +00:00
mycroft
1dde00e8a4 Correct a comment regarding cookies, from Greg Hudson. 1995-10-09 11:19:32 +00:00
thorpej
1955514b6c Make system calls conform to a standard prototype and bring those 
prototypes into scope.
 1995-09-21 23:39:20 +00:00
mycroft
b2f17c7648 Do any pending I/O before trying to unmount, per John Kohl. 1995-09-01 19:39:18 +00:00
cgd
e9d17d38b5 avoid unnecessary aging of buffers. This used to make sense, when buffer 
caches were much smaller, but makes little sense now, and will become more
useless as RAM (and buffer cache) sizes grow.  Suggested by Bob Baron.
 1995-07-24 21:19:27 +00:00
cgd
60db543a18 don't just throw away updates to the cylinder group bitmaps, actually 
write them to disk!  From Keith Smith at Harvard, via Kirk McKusick.
fixes the occasional `blkfree: freeing free block' that has been seen
when cluster reallocation code is enabled.
 1995-07-19 15:47:36 +00:00
cgd
8f62c773e8 don't assume the f_fsnamelen is nul-truncated or longer than MFSNAMELEN 1995-06-18 14:45:14 +00:00
cgd
94b7cf1b85 compensate for timeval/timespec/stat structure changes. 1995-06-15 23:22:41 +00:00
mycroft
ae9e49ed0d Fix thinko in previous commit. Do this as suggested by John Kohl. 1995-05-30 11:41:38 +00:00
mycroft
60c966ee4e When replacing a whiteout, set i_endoff to 0, so the directory cannot be 
shrunk.
 1995-05-30 10:44:49 +00:00
cgd
64d4944e2f from Mike Karels: 
allow Q_SYNC regardless of "target" uid, we allow it with -1;
fix bug that caused all ops to refer to user quotas, not group.
[finally had a chance to check this!]
 1995-05-10 18:00:45 +00:00
mycroft
fc46bf42f7 Make use of the `fs_clean' field. If it was set when the file system was 
mounted or upgraded to r-w, then clear it and set it again later when the
file system is unmounted or downgraded.
 1995-04-12 21:21:00 +00:00
jtc
db0046c14d KERNEL -> _KERNEL 1995-03-28 19:59:56 +00:00
jtc
f76f1f89ad KERNEL -> _KERNEL 1995-03-26 20:35:13 +00:00
cgd
dd6089fc52 explicitly cast &time to (struct timeval *) when passing it to VOP_UPDATE. 
new prototypes and picky compilers make a volatile mess.
 1995-03-24 15:33:23 +00:00
mycroft
f75ba16b09 Update to use timer{add,sub}(). 1995-03-21 13:33:34 +00:00
mycroft
2f805fa51b copy*str() should use size_t. 1995-03-09 12:05:21 +00:00
cgd
ad86c7f247 size for copyinstr should be u_long 1995-03-08 01:51:49 +00:00
cgd
32ec40eee8 cast pointer to long, not int 1995-03-08 01:51:38 +00:00
mycroft
4c34be6b52 Clean up deleted files. 1995-03-01 00:00:00 +00:00
mycroft
41f181e0d8 Clean up the code to frob mnt_stat a bit. 1995-01-18 09:44:34 +00:00
mycroft
9843f45605 Turn mountlist into a CIRCLEQ, and handle setting and checking of MNT_ROOTFS 
differently.
 1995-01-18 06:19:49 +00:00
cgd
80c18810b0 fix pr 568 1995-01-03 01:23:50 +00:00
mycroft
f969fcc548 Don't look at d_type for old format file systems. 1994-12-30 22:45:55 +00:00
mycroft
e242058ed6 Clear IN_RENAME on failed rename of directory. 1994-12-27 19:55:24 +00:00
ws
2f0fb8ee09 Implement and use a common access checking routine 1994-12-24 16:44:12 +00:00
mycroft
40d02e621d #include sys/queue.h, but also hide kernel structures in #ifdef KERNEL. 1994-12-21 20:07:26 +00:00
mycroft
1b682c968a Add RCS ids where missing. 1994-12-21 20:00:18 +00:00
mycroft
6a5daf3070 Ignore rotational optimization if nrpos == 1, as suggested by Stefan Esser. 1994-12-16 05:55:15 +00:00