Commit Graph

418 Commits

Author SHA1 Message Date
fvdl 49b162566a Bump va_blocksize for the map files some more, so that programs with
quite a few mappings have a chance of being handled correctly if
st_blksize is looked at.
2001-03-30 20:25:11 +00:00
fvdl 2e64bebd3b For -o linux mounts, add some code to emulate /proc/#/maps.
Needs NAMECACHE_ENTER_REVERSE to include filenames.
2001-03-29 22:41:52 +00:00
chs dd82ad8e2c eliminate the VM_PAGER_* error codes in favor of the traditional E* codes.
the mapping is:

VM_PAGER_OK		        0
VM_PAGER_BAD		        <unused>
VM_PAGER_FAIL		        <unused>
VM_PAGER_PEND		        0 (see below)
VM_PAGER_ERROR		        EIO
VM_PAGER_AGAIN		        EAGAIN
VM_PAGER_UNLOCK		        EBUSY
VM_PAGER_REFAULT	        ERESTART

for async i/o requests, it used to be possible for the request to
be convert to sync, and the pager would return VM_PAGER_OK or VM_PAGER_PEND
to indicate whether the caller should perform post-i/o cleanup.
this is no longer allowed; pagers must now return 0 to indicate that
the async i/o was successfully started, and the caller never needs to
worry about doing the post-i/o cleanup.
2001-03-10 22:46:45 +00:00
jmc 1d6219e000 XXX: Temporary work around to fdesc truncating files when it shouldn't. Treat
setattr calls on underlying vnodes the same as sockets and just return 0.

This whole thing needs to be gutted and replaced with either fall throughs
to specfs (the attr forwarding is just bizarre and leads to weird crap like
the above truncation problems), or better yet a real cloning device node.
2001-03-06 01:23:42 +00:00
chs 667e1805e6 in genfs_getpages(), don't try to optimize zeroing past EOF.
fixes PR 12297.
2001-02-28 02:59:19 +00:00
lukem 4f9c98118a convert to ansi knf 2001-02-27 19:52:21 +00:00
chs f87a22a66b distinguish between a file's in-memory EOF (which marks the offset at
which we disallow creation of page cache pages) and its on-disk EOF
(which marks the offset at which there is not (yet) data on disk that
we need to read when creating pages).  for requests with PGO_PASTEOF,
the in-memory EOF maybe be much larger than the on-disk EOF.
2001-02-27 02:57:02 +00:00
jdolecek 522f569810 make some more constant arrays 'const' 2001-02-21 21:39:52 +00:00
chs 1a5818b05e fix a couple more bugs:
- in genfs_getpages(), unbusy any pages that we don't free in the error path.
 - in genfs_putpages(), if we get a bmap error, record that in the master buf.
2001-02-18 15:03:42 +00:00
fvdl f12c24a45c Oops, removal unintenionally commited debug code. 2001-02-12 19:12:10 +00:00
fvdl dd32618956 Format arg nit. 2001-02-12 17:41:49 +00:00
chs 8c14e1d2db fix several bugs:
- in the cases where we skip over the i/o loop, increment npages by ridx
   so that when the cleanup code starts processing the pgs array at index 0
   it'll actually process all of the pages.
 - process the PG_RELEASED flag when unbusying pages.
 - add some missing MP locking.
 - use MIN() and MAX() instead of min() and max() since the latter are
   functions which take arguments of type "int" but we call them with
   values of type "off_t", so the values could be truncated.
 - in the PGO_PASTEOF case, use the larger of the current file size and the
   end of the requested range of pages as the file size for this request.
   this fixes some problems with sparsing writes to large offsets.
2001-02-05 12:26:08 +00:00
mrg 6bcf1102df clean up some KERNFS_DIAGNOSTIC calls. 2001-02-04 10:20:00 +00:00
jdolecek 98449698d2 Back previous out, it was right the way it was. Seems like I should
attend some basic arithmetic lessons to avoid such mistakes :-/
2001-01-27 12:28:35 +00:00
jdolecek 8c0e5dec1a fix 'physmem' - the actual value we want is ctob(physmem) 2001-01-27 11:42:41 +00:00
jdolecek 555bbcc02a g/c pmnt_mp in struct procfs_args 2001-01-25 12:44:56 +00:00
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