Commit Graph

402 Commits

Author SHA1 Message Date
fvdl f4ddf5e1b6 Cast lbn to off_t in a few places, to avoid daddr_t overflow and all sorts
of havoc. From Bill Sommerfeld.
2001-01-22 16:39:54 +00:00
jdolecek d9466585b7 make filesystem vnodeop, specop, fifoop and vnodeopv_* arrays const 2001-01-22 12:17:35 +00:00
jdolecek 34c8ae80da constify 2001-01-18 20:28:15 +00:00
tv 231789093f No-op revision to force update of this file to a non-"-kk" version. 2001-01-18 16:39:43 +00:00
fvdl 4e000b75b2 Add a few linux-style files, only enabled when -o linux is specified
for the mount. Currently these are /proc/cpuinfo and /proc/meminfo.
The former only does something on i386 right now.
2001-01-17 00:09:07 +00:00
david d0ec21672f Increase psbuf size as in FreeBSD patch. We don't have jail(8), so the
recent bugtraq exploit doesn't apply, but it could be exploitable in
other ways.
2000-12-30 23:14:52 +00:00
chs 68b98ea45f several bugs:
- in genfs_getpages() don't start read-ahead if we get an error on the
   sync read, and always start read-ahead after the range of the sync read
   if we do any at all.
 - off-by-one error in genfs_size().
2000-12-27 04:47:43 +00:00
enami 0088605039 Don't cache a device vnode in a layer node cache once the layer node
is inactivated.  Otherwise, the device won't closed.
2000-12-21 03:51:02 +00:00
chs a8a757cd0a implement VOP_GETPAGES(). 2000-12-11 02:50:17 +00:00
chs f5878a3362 only zero the part of the page after EOF if we're actually
initializing the page.
2000-12-09 22:38:23 +00:00
chs e9037d16c5 allow building without SOFTDEP by adding the pageiodone hook to bio_ops. 2000-11-27 18:26:38 +00:00
chs aeda8d3b77 Initial integration of the Unified Buffer Cache project. 2000-11-27 08:39:39 +00:00
chs b0ec16cc38 remove dead code and other misc cleanup. 2000-11-24 18:58:37 +00:00
chs 3a947bfaf7 avoid removing syncer vnodes from the worklist twice. 2000-11-19 05:53:21 +00:00
ad 642267bcc7 Update for hashinit() change. 2000-11-08 14:28:12 +00:00
chs 071195415e fix an LP64BE bogon. 2000-11-08 05:29:32 +00:00
jmc 7a615b0018 Remove usecount check in spec_open. It fails to catch VALIAS situations
and vfs_mountedon will handle them all correctly.
2000-10-27 06:28:27 +00:00
jdolecek 74cffdc95f fix typo (dely --> delay) 2000-10-06 19:08:00 +00:00
eeh 1ecf6779be Add support for variable end of user stacks needed to support COMPAT_NETBSD32:
`struct vmspace' has a new field `vm_minsaddr' which is the user TOS.

	PS_STRINGS is deprecated in favor of curproc->p_pstr which is derived
	from `vm_minsaddr'.

	Bump the kernel version number.
2000-09-28 19:05:06 +00:00
thorpej 94a08f31b3 PHOLD/PRELE around uvm_io() to user address space is unnecessary. There
is nothing in the U-area that we need.
2000-09-26 23:28:01 +00:00
fvdl db4108490a Adapt for VOP_FSYNC parameter change. 2000-09-19 22:01:59 +00:00
thorpej a86d1f4891 Add a lock around the scheduler, and use it as necessary, including
in the non-MULTIPROCESSOR case (LOCKDEBUG requires it).  Scheduler
lock is held upon entry to mi_switch() and cpu_switch(), and
cpu_switch() releases the lock before returning.

Largely from Bill Sommerfeld, with some minor bug fixes and
machine-dependent code hacking from me.
2000-08-20 21:50:06 +00:00
tv 10d08cc9f2 Only show the "exe" entry to Linux processes, suggested by christos.
Since there are actually three struct emul's for linux, use the e_name
field to determine eligibility with strcmp().
2000-08-09 23:30:49 +00:00
tv ae4dea1dc4 Some versions of Linux libc look for /proc/.../exe instead of /proc/../file.
Add an entry for "exe" that is the same as "file", provided only if
COMPAT_LINUX is set.
2000-08-09 21:08:11 +00:00
thorpej 7cc27a88c0 Convert namei pathname buffer allocation to use the pool allocator. 2000-08-03 20:41:05 +00:00
thorpej b94e29816f MALLOC()/FREE() are not to be used for variable sized allocations. 2000-08-03 03:39:52 +00:00
jdolecek b0fb24279c change the lf_advlock() arguments from
int     lf_advlock __P((struct lockf **,
           off_t, caddr_t, int, struct flock *, int));
to

int     lf_advlock __P((struct vop_advlock_args *, struct lockf **, off_t));

This matches common usage and is also compatible with similar change
in FreeBSD (though they use u_quad_t as last arg).
2000-07-22 15:26:11 +00:00
thorpej b221909e32 Sprinkle some const. 2000-07-14 07:21:50 +00:00
mycroft caf07dfa04 When unmounting, make sure to free the syncer vnode so that it can be reused. 2000-07-09 00:59:03 +00:00
mrg 20515f2854 <vm/vm.h> -> <uvm/uvm_extern.h> 2000-06-28 02:44:06 +00:00
mrg e185413725 remove redudant <vm/pmap.h> includes. <vm/pmap.h> -> <uvm/uvm_pmap.h> 2000-06-27 04:18:48 +00:00
mrg 2f159a1bac remove/move more mach vm header files:
<vm/pglist.h> -> <uvm/uvm_pglist.h>
	<vm/vm_inherit.h> -> <uvm/uvm_inherit.h>
	<vm/vm_kern.h> -> into <uvm/uvm_extern.h>
	<vm/vm_object.h> -> nothing
	<vm/vm_pager.h> -> into <uvm/uvm_pager.h>

also includes a bunch of <vm/vm_page.h> include removals (due to redudancy
with <vm/vm.h>), and a scattering of other similar headers.
2000-06-26 14:20:25 +00:00
mrg c543a66253 remove some redundant <vm/vm_xxx.h> includes 2000-06-25 13:26:19 +00:00
assar 6c734cd283 make vfs_getnewfsid only take one argument and fetch the name of the
filesystem from the supplied mount argument.  also make makefstype
take a const parameter.  update all the callers.
2000-06-10 18:27:01 +00:00
thorpej a804b492ac Use CMSG_*() properly. 2000-06-05 17:21:38 +00:00
simonb ab92666f6b Fix a possible kernel memory leak - if the cmdline of a process was
requested after it had started to exit but before it became a zombie
a page of kernel memory wouldn't be free'd.
2000-06-01 13:43:08 +00:00
mycroft 7385963fc9 Stylistic change. 2000-05-29 18:59:51 +00:00
thorpej 21fc65e1a8 sleep() -> tsleep() 2000-05-27 04:52:27 +00:00
simonb 0c59b3c325 Apply patch from Robert Elz in PR kern/10113. This fixes two problems
with procfs's cmdline - from the PR:

	The cmdline implementation in procfs is bogus.  It's possible that
	part of the fix is a workaround of a UVM problem - that is, when
	(internally) accessing the top of the process VM (the end of the
	args) a request for I/0 of a PAGE_SIZE'd block starting at less
	than a PAGE_SIZE from the end of the mem space returns EINVAL
	rather than the data that is available.  Whether this is a bug
	in UVM or not depends upon how it is defined to work, and I was
	unable to determine that.   (Simon Burge found that problem, and
	provided the basis of the workaround/fix).

	Then, the cmdline function is unable to read more than one
	page of args, and a good thing too, as the way it is written
	attempting to get more than that would reference into lala land.

	And, on an attempt to read a lot of data when the above is
	fixed, most of the data won't be returned, only the final block
	of any read.

Tested on alpha, pmax, i386 and sparc.
2000-05-16 13:45:25 +00:00
perseant f0728fdce1 Change the sementics of the last parameter from a boolean ("waitfor") to
a set of flags ("flags").  Two flags are defined, UPDATE_WAIT and
UPDATE_DIROP.

Under the old semantics, VOP_UPDATE would block if waitfor were set,
under the assumption that directory operations should be done
synchronously.  At least LFS and FFS+softdep do not make this
assumption; FFS+softdep got around the problem by enclosing all relevant
calls to VOP_UPDATE in a "if(!DOINGSOFTDEP(vp))", while LFS simply
ignored waitfor, one of the reasons why NFS-serving an LFS filesystem
did not work properly.

Under the new semantics, the UPDATE_DIROP flag is a hint to the
fs-specific update routine that the call comes from a dirop routine, and
should be wait for, or not, accordingly.

Closes PR#8996.
2000-05-13 23:43:06 +00:00
augustss bd842961d4 Register, begone! 2000-03-30 12:22:12 +00:00
simonb 45171aaef9 Delete redundant decls of vn_syncer_add_to_worklist(), syncdelay,
filedelay, dirdelay and metadelay - they're in <sys/vnode.h>.
2000-03-30 02:21:49 +00:00
simonb 92701d715c Delete duplicate declaration of atopid(). 2000-03-30 02:20:14 +00:00
simonb 08312317e7 Delete redundant decl of layer_node_create(), it's in layer_extern.h. 2000-03-30 02:19:16 +00:00
simonb 0177c68ba1 Delete redundant decl of fdesc_root, it's in fdesc.h. 2000-03-30 02:16:22 +00:00
jdolecek 88b591be30 Adapt to last VFS changes - add appropriate vfs_done routine. 2000-03-16 19:00:26 +00:00
jdolecek 89015c4648 Add new VFS op routine - vfs_done and call it on filesystem detach
in vfs_detach(). vfs_done may free global filesystem's resources,
typically those allocated in respective filesystem's init function.
Needed so those filesystems which went in via LKM have a chance to
clean after themselves before unloading. This fixes random panics
when LKM for filesystem using pools was loaded and unloaded several
times.

For each leaf filesystem, add appropriate vfs_done routine.
2000-03-16 18:08:17 +00:00
soren 95054da1a1 Fix doubled 'the's in comments. 2000-03-13 23:52:25 +00:00
fvdl bb4e324508 Fix pasto: some lines of the procfs hash code were copied from the
UFS code, and I forgot to rename the "ihash" variable, causing
weird effects, because 3/4th of the UFS hash table would become
unreachable after procfs was loaded as an LKM.
2000-02-25 22:33:43 +00:00
fvdl 15bb1bd145 At mount/unmount time, add an exec hook to revoke all vnodes iff the
process is about to exec a sugid binary.

To speed up things, use hashing for vnode allocation, like other filesystems
do. This avoids walking the whole procfs node list in the revoke case too.
2000-01-25 21:52:04 +00:00