Commit Graph

740 Commits

Author SHA1 Message Date
christos 42a255dd25 Unfortunately, we need to allocate space here. Pointed out by Juan RP. 2004-05-22 23:17:04 +00:00
jonathan 230fb9b8ab Eliminate several uses of `curproc' from the socket-layer code and from NFS.
Add a new explicit `struct proc *p' argument to socreate(), sosend().
Use that argument instead of curproc. Follow-on changes to pass that
argument to socreate(), sosend(), and (*so->so_send)() calls.
These changes reviewed and independently recoded  by Matt Thomas.

Changes to soreceive() and (*dom->dom_exernalize() from Matt Thomas:
pass soreceive()'s struct uio* uio->uio_procp to unp_externalize().
Eliminate curproc from unp_externalize.   Also, now soreceive() uses
its uio->uio_procp value, pass that same value downward to
((pr->pru_usrreq)() calls for consistency, instead of (struct proc * )0.

Similar changes in sys/nfs to eliminate (most) uses of curproc,
either via the req-> r_procp field of a struct nfsreq *req argument,
or by passing down new explicit struct proc * arguments.

Reviewed by: Matt Thomas, posted to tech-kern.
NB: The (*pr->pru_usrreq)() change should be tested on more (all!) protocols.
2004-05-22 22:52:13 +00:00
christos a441628d4c we are copying all the infomation from statvfs here; we don't need an
intermediate copy on the stack.
2004-05-22 20:28:38 +00:00
atatat 10a7ba9ef6 Tweak sysctl setup functions (the macros, actually) for use in lkms,
and tweak lkminit_*.c (where applicable) to call them, and to call
sysctl_teardown() when being unloaded.

This consists of (1) making setup functions not be static when being
compiled as lkms (change to sys/sysctl.h), (2) making prototypes
visible for the various setup functions in header files (changes to
various header files), and (3) making simple "load" and "unload"
functions in the actual lkminit stuff.

linux_sysctl.c also needs its root exposed (ie, made not static) for
this (when built as an lkm).
2004-05-20 06:34:24 +00:00
christos 999e9cef64 Simplify the code by:
1. Checking for a negative uio_offset at the beginning. This really does
   not affect us in most cases because we check that later too.
2. Checking for attempts to write to init sooner and in all cases.
2004-05-14 16:35:24 +00:00
cl 719c5983ec Workaround for gcc 2.95.3 failing to initialize structures
and/or unions inside structures using nested designators.
Should be reverted when gcc >=3.3.3 is ready for vax.
2004-05-13 15:44:04 +00:00
jrf 5f626331c1 caddr_t -> void * and removal of some more casts. 2004-05-12 02:07:37 +00:00
cl 65569a4d16 Allow additional entries (files, subdirs) in kernfs. Also allow
defining additional kfstypes and provide hooks to run arbitrary code
for any vnodeop on the additional types.
2004-05-07 15:33:17 +00:00
cl a2a2784bfd remove code no longer needed since the type/permission information
is available in the entry's struct kern_target and every entry has a
(possibly shared) struct kern_target now.
2004-05-07 15:20:29 +00:00
cl 81d3c2061c Make lookup and readdir return the same inode number. kernfs_readdir
now uses kernfs_allocvp to map from kernfs entry to inode number,
kernfs_allocvp is now the only place where entries are mapped to inode
numbers.  Also make KERNFS_FILENO not return random results for entries
not in kern_targets.
2004-05-07 15:06:15 +00:00
cl 5f113f8e16 Find the right entry when doing lookup on dotdot in kern/ipsec subdirs.
Also remove some duplicate code.
2004-05-07 14:56:48 +00:00
jrf bafcaa70cd Removed remaining caddr_t casts we do not need in miscfs. Recompiled
kernel and ran for a day or so. There are still some caddr_t types in
the arguments of some calls, I will do those separately (later) as
they touch a lot more of the system.
Approved by christos@NetBSD.org.
2004-04-29 16:10:54 +00:00
jrf fc97fd571a First pass for some caddr_t removal and changes to get rid of it where we
no longer use and/or need it

	- removed casts from unionfs, deadfs and fdesc
	  (there are more to hunt down still)
	- changed vfs_quotactl args argumet from caddr_t to void *
	- changed vfs_quotactl structures/callers to reflect the api change

Compiled fine and ran for about a day. Approved/reviewed by
christos@netbsd.org and gimpy@netbsd.org.
2004-04-27 17:37:30 +00:00
itojun 8bcb745d7c sprintf -> snprintf 2004-04-22 00:31:00 +00:00
christos 90345b38a6 add sys/dirent.h 2004-04-21 02:40:42 +00:00
christos 4bdb80839b add sys/dirent.h 2004-04-21 02:38:16 +00:00
christos 6bd1d6d4db Replace the statfs() family of system calls with statvfs().
Retain binary compatibility.
2004-04-21 01:05:31 +00:00
atatat 19af35fd0d Tango on sysctl_createv() and flags. The flags have all been renamed,
and sysctl_createv() now uses more arguments.
2004-03-24 15:34:46 +00:00
atatat f0e2808b8b Remove pointless comment about layerfs_sysctl() 2004-03-09 03:16:08 +00:00
wrstuden 8383006f0f Handle the case of fifo_close() getting called from vclean(). In that
case, we tear down the node-specific storage as if there were no more open
users. As vclean() will VT_NON the vnode before anyone else will get access
to the vnode, this is our last chance.

Fixes memory leak in revoke(2) path noticed by tedu at openbsd dot org.
2004-03-06 00:38:29 +00:00
jdolecek cb3ab0a872 unlock the descriptor table simple lock after fd_getfile() call in
procfs_readdir()
fixes procfs locking problems reported on current-users@, problem place
found by enami tsugutomo
2004-02-15 22:18:17 +00:00
hannken 142e9d5deb Add a generic copy-on-write hook to add/remove functions that will be
called with every buffer written through spec_strategy().

Used by fss(4). Future file-system-internal snapshots will need them too.

Welcome to 1.6ZK

Approved by: Jason R. Thorpe <thorpej@netbsd.org>
2004-02-14 00:00:56 +00:00
wiz d20841bb64 Uppercase CPU, plural is CPUs. 2004-02-13 11:36:08 +00:00
hannken 3db4e2acd8 Make VOP_STRATEGY(bp) a real VOP as discussed on tech-kern.
VOP_STRATEGY(bp) is replaced by one of two new functions:

- VOP_STRATEGY(vp, bp)  Call the strategy routine of vp for bp.
- DEV_STRATEGY(bp)      Call the d_strategy routine of bp->b_dev for bp.

DEV_STRATEGY(bp) is used only for block-to-block device situations.
2004-01-25 18:06:48 +00:00
atatat d0a69862ef Rename sysctl setup function to match "reality" 2004-01-17 03:37:42 +00:00
yamt 7266a95907 store a i/o priority hint in struct buf for buffer queue discipline. 2004-01-10 14:39:50 +00:00
drochner a33b8b088c a little bit more namespace sanity 2003-12-10 14:19:02 +00:00
hannken fbae381aaa The file system snapshot pseudo driver.
Uses a hook in spec_strategy() to save data written from a mounted
file system to its block device and a hook in dounmount().

Not enabled by default in any kernel config.

Approved by: Frank van der Linden <fvdl@netbsd.org>
2003-12-10 11:40:11 +00:00
atatat 13f8d2ce5f Dynamic sysctl.
Gone are the old kern_sysctl(), cpu_sysctl(), hw_sysctl(),
vfs_sysctl(), etc, routines, along with sysctl_int() et al.  Now all
nodes are registered with the tree, and nodes can be added (or
removed) easily, and I/O to and from the tree is handled generically.

Since the nodes are registered with the tree, the mapping from name to
number (and back again) can now be discovered, instead of having to be
hard coded.  Adding new nodes to the tree is likewise much simpler --
the new infrastructure handles almost all the work for simple types,
and just about anything else can be done with a small helper function.

All existing nodes are where they were before (numerically speaking),
so all existing consumers of sysctl information should notice no
difference.

PS - I'm sorry, but there's a distinct lack of documentation at the
moment.  I'm working on sysctl(3/8/9) right now, and I promise to
watch out for buses.
2003-12-04 19:38:21 +00:00
wiz 03e41d98b7 Typo fixes in comments from jmc@openbsd. 2003-11-30 20:53:48 +00:00
matt 7bf0959ab7 Restore a change that made AF_LOCAL sockets block on connect(2) until
accepted.  However, this time this behavor is not the default.  Instead
it must enabled by using the LOCAL_CONNWAIT socket option on either the
connecting or accepting socket.
2003-11-29 10:02:42 +00:00
perry 6032efb56d Revert a change that altered the semantics of AF_LOCAL sockets. Sadly
this made us API incompatible with other Unixes.
2003-11-29 06:08:29 +00:00
pk 9ed750b8fe genfs_revoke: use ltsleep() to release the vnode spin lock to avoid a
sleep/wakeup race.
2003-11-27 07:58:02 +00:00
pk d0e5117267 spec_close: asserting that the terminal's process group be set if it is
associated with a session is too strong; a foreground group may go away
without being immediately replaced with another.
2003-11-26 11:33:50 +00:00
pk 16c7483e5e spec_close: we don't need to lock the vnode just to make a copy of its flags. 2003-11-25 12:52:10 +00:00
pk 48f1e67a86 spec_close: controlling terminal hack: drop session reference count only if
we actually had a reference.
2003-11-24 14:59:38 +00:00
wiz 4bbfee09ca Various typo fixes from Jonathon Gray via jmc@openbsd. 2003-11-17 11:16:10 +00:00
dsl 618165063e When closing a process's controlling terminal, also remove the links
to the session and pgrp from the tty.  The way that the console is
handled means that the vrele() may not actually do the final close
on the tty itself.
2003-11-06 08:58:04 +00:00
christos 4c1141b840 t_pgrp can be null. 2003-10-30 14:51:01 +00:00
simonb b6abb6ab1d Remove some assigned-to but otherwise unused variables. 2003-10-30 01:58:17 +00:00
hannken a3a898ff0f Add the gating of system calls that cause modifications to the underlying
file system.
The function vfs_write_suspend stops all new write operations to a file
system, allows any file system modifying system calls already in progress
to complete, then sync's the file system to disk and returns. The
function vfs_write_resume allows the suspended write operations to
complete.

From FreeBSD with slight modifications.

Approved by: Frank van der Linden <fvdl@netbsd.org>
2003-10-15 11:28:59 +00:00
dsl b03412ca14 Set vnode size of character disk devices to that of the partition when they
are opened (was always done for block devices).
This means that fstat will report the partition size and hence newfs
needn't grovel into the disklabel to find the filesystem size.
2003-10-15 08:41:26 +00:00
yamt 589e82f2ba terminate snprintb 'new' format strings correctly.
(fixes overrun in mount_*)
2003-10-03 16:34:31 +00:00
mycroft 88dd794c62 Put pfsnode in the #ifdef _KERNEL too, so this actually compiles. 2003-09-27 15:32:50 +00:00
darcy 566d30be44 Changes as discussed with itojun on tech-kern. I have modified the enums
to have KFS or PFS differentiators.  Further I have wrapped the enum in
procfs in "#ifdef _KERNEL" as it is done in kernfs.

To see the discussion go to http://mail-index.NetBSD.org/tech-kern/2003/09/
and look for "Mismatched enums in include files" in the list.
2003-09-27 13:29:02 +00:00
atatat ce41526125 Make kernfs peacefully co-exist with procfs. 2003-09-26 03:08:18 +00:00
yamt 61d5d4362b fix a bug of lfs.
genfs_getpages() can read in more blocks than it should due to faked filesize
of lfs_gop_size().  it's a security problem and it makes gcc3 "internal error"

to fix this,
- in genfs_getpages(), always calculate diskeof and memeof separately
  so that filesystems (in this case, lfs) can use different strategies
  for them.
- introduce GOP_SIZE_MEM flag and use it to request in-core filesize.
  (it was an intention of GOP_SIZE_READ,
  but after the above change _READ is not a straightforward name)

after this, no one uses GOP_SIZE_{READ,WRITE} anymore but leave them for now.
2003-09-24 10:22:53 +00:00
jdolecek a034152027 move dupfd from struct proc to struct lwp - it's per-LWP, not per-process; we
use curlwp where the lwp is not directly available, i.e. in device open
routines

briefly discussed on tech-kern
2003-09-13 08:32:10 +00:00
itojun d963f70264 check before deref kfs_kt 2003-09-10 10:22:45 +00:00
dan d12b78f6df Make /kern/. have linkcount 2 in non-IPSEC case, 4 in IPSEC case.
Thanks to Valeriy E. Ushakov.
2003-09-10 09:59:47 +00:00
itojun 836dd0e3ef check if rootdev/rrootdev actually exists. 2003-09-10 03:56:33 +00:00
itojun e0517a16a6 fix permission of /kern/hostname to 0644 2003-09-10 03:42:07 +00:00
dan 843d91726f test against kt to get the right node of the given type, from enami@ 2003-09-10 03:31:29 +00:00
simonb 6ab489653d 8 spaces is evil, convert to tab. 2003-09-10 03:24:38 +00:00
dan 7e5137f372 Make vnode times on /kern/boottime be the boot time, not "now".
Handy because ls(1) helpfully converts the time to human-readable
format when printing, and because shell tools like "test -nt" and
"find -newer" can be used against it.

"Inspired" by a discussion about removing lockfiles older than the
last reboot, and Al Crooks' handy observation that a close
approximation can be found with /var/run/dmesg.boot

While here, notice that a lot of the kernfs structures and naming
changed suddenly, and though it seems a clear improvement, there was no
mention in commit logs.
2003-09-10 00:45:22 +00:00
itojun 23da4bd394 remove non-precise comment 2003-09-08 10:54:14 +00:00
itojun 8ca90bd4e4 add /kern/ipsecsa and /kern/ipsecsp, which can be inspected by setkey(8).
it allows easier access to ipsecsa/sp.  it works around problem where
setkey -D does not work with large number of ipsec SAs due to socket buffer
size.
2003-09-08 06:51:53 +00:00
itojun dca8daa76d remove meaningless line (variable overwritten 2 lines below) 2003-09-07 00:25:04 +00:00
matt e3bf7b7e7d Adjust to the new calling convention of unp_connect2. 2003-09-04 04:30:25 +00:00
matt ecf95073f1 Change the behavor of AF_LOCAL connect() to sleep until the server has
accepted the connection.  This can prevent a client from overwhelming a
server.
2003-09-03 21:30:12 +00:00
he 25d9b10ee9 Add casts of LINUX_USRSTACK and USRSTACK to handle the cases
where these are not constants.
2003-08-21 23:00:07 +00:00
christos c626c860b1 LINUX_USRSTACK is only defined on i386. Thanks Izumi! 2003-08-09 16:28:49 +00:00
christos a24080409e Only choose the linux usrstack if the netbsd usrstack was higher. 2003-08-09 14:17:28 +00:00
christos 9897a5425c Change the way we compute the top of the stack. This makes java-1.4.2 work. 2003-08-09 13:44:39 +00:00
agc aad01611e7 Move UCB-licensed code from 4-clause to 3-clause licence.
Patches provided by Joel Baker in PR 22364, verified by myself.
2003-08-07 16:26:28 +00:00
fvdl d5aece61d6 Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.
2003-06-29 22:28:00 +00:00
thorpej a06b275edc Undo part of the ktrace/lwp changes. In particular:
* Remove the "lwp *" argument that was added to vget().  Turns out
  that nothing actually used it!
* Remove the "lwp *" arguments that were added to VFS_ROOT(), VFS_VGET(),
  and VFS_FHTOVP(); all they did was pass it to vget() (which, as noted
  above, didn't use it).
* Remove all of the "lwp *" arguments to internal functions that were added
  just to appease the above.
2003-06-29 18:43:21 +00:00
thorpej 3a56e3ea7e Adjust for ktrace/lwp changes. 2003-06-29 02:16:59 +00:00
darrenr 960df3c8d1 Pass lwp pointers throughtout the kernel, as required, so that the lwpid can
be inserted into ktrace records.  The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.

Bump the kernel rev up to 1.6V
2003-06-28 14:20:43 +00:00
simonb 33b48b0823 Micro-optimisation- move the "pgs == NULL" check from the previous
change to immediately after the malloc call.  This can't fail in
the non-malloc case.

Reviewd by YAMAMOTO Takashi.
2003-06-17 04:17:37 +00:00
yamt 424a10b9cc genfs_getpages: if number of pages requested is >16,
use malloc/free for array of pointers to vm_page.
otherwise, use on-stack array as used to.
this change fixes assertion failure when nfsd gets a big read request
that isn't aligned with filesystem block.
discussed on tech-kern.
2003-06-15 16:14:46 +00:00
hannken 5c19a0665c Change "%qu" to "PRIu64" to make it compile on sparc64. 2003-05-29 08:13:41 +00:00
christos 210944c7de Add /proc/<pid>/stat for linux compat. j2sdk1.4.2 depends on it. 2003-05-28 18:03:15 +00:00
nakayama bbdab69970 Add breaks which were forgotten in rev. 1.2 change.
Inspired from a report by HIRATSUKA Kouichirou in tech-pkg-ja mailing list.
2003-05-08 13:46:50 +00:00
tls 85c8cfb533 Correct use of MAXBSIZE where MAXPHYS was intended. This is a necessary
first step towards per-device MAXPHYS, and has the beneficial side effect
of allowing clustering to MAXPHYS even on systems that need to run with
a reduced MAXBSIZE to get more metadata buffers.
2003-04-23 00:55:17 +00:00
christos d864ba0136 fix lkm malloc lossage. 2003-04-22 17:14:12 +00:00
christos 4e4a4c7bc9 Make the mode of /proc/<pid>/fd dr-x------ 2003-04-18 23:19:24 +00:00
christos 11cc5eb2c6 Make symlinks for directories that point to the actual directory.
Make symlinks to [kqueue] and [misc] for kqueue and misc fds.
2003-04-18 21:55:35 +00:00
jdolecek b7b5aac957 change PROCFS_FILENO() to use 5 bits for 'type', since there are more than
16 types nowadays (i.e. Pfd is 17)
2003-04-18 10:00:19 +00:00
jdolecek f331bb3205 do not show nodes corresponding to directory descriptors for process
in fd/ subdirectory, nor allow lookup/open for the nodes
this fixes PR kern/21187 for good, and also avoids interesting directory
locking issues
2003-04-17 20:50:46 +00:00
jdolecek 884bdfdbaf procfs_readdir(): in Pfd case, only show descriptors of types we want
how to represent (vnodes, fifo, pipes); also use fd_getfile() et al

this avoids annoying EOPNOTSUPP error messages from ls -F and such
2003-04-17 20:33:17 +00:00
jdolecek be4c900d41 procfs_lookup(): use fd_getfile() et al in Pfd case 2003-04-17 20:19:18 +00:00
jdolecek ed9a5a7448 use fd_getfile() in procfs_getfp(), and FILE_USE()/FILE_UNUSE() the
returned file descriptor pointer appropriately
2003-04-17 19:04:25 +00:00
jdolecek b5bca36101 g/c, it's outdated and the info wouldn't belong here anyway 2003-04-17 18:14:57 +00:00
jdolecek 64b598bf33 make some local arrays/variables static + const 2003-04-17 18:08:28 +00:00
christos 80ecd573c0 PR/1796: John Kohl: statfs misbehaves under chrooted environments.
- Under chroot it displays only the visible filesystems with appropriate paths.
- The statfs f_mntonname gets adjusted to contain the real path from root.
- While was there, fixed a bug in ext2fs, locking problems with vfs_getfsstat(),
  and factored out some of the vfsop statfs() code to copy_statfs_info(). This
  fixes the problem where some filesystems forgot to set fsid.
- Made coda look more like a normal fs.
2003-04-16 21:44:18 +00:00
jdolecek 98f212db7d use former genfs_eopnotsupp_rele() as genfs_eopnotsupp(), so that vnodes
are vput()/vrele()d as necessary - some filesystems did use the wrong
one for some ops, and it's just safer to not take the chance

based on suggestion by Bill Studenmund
2003-04-10 21:53:32 +00:00
jdolecek 1ac1ffed36 improve genfs_eopnotsupp_rele() so that's usable for vop_rename,
which uses WILLPUT for member which may be NULL
handle correctly dvp == vp case for WILLPUT members, so this works
  for vop_remove, vop_rename

thanks Bill Studenmund for code&comments on this
2003-04-10 21:34:12 +00:00
dsl b2aefec351 Remove pointless check against PID_MAX. Let pfind() do the validation.
(The new pid allocation code may decide to allocate pids above PID_MAX.)
2003-04-05 23:32:52 +00:00
martin b38f12bdd4 Fix a race condition where a writer could already have closed the fifo
before the reader woke up - this made the reader loop again, waiting
for another writer, even though there was input available.

Thanks to Jaromir for spotting the real cause and sugesting a solution.

This should fix PR port-sparc64/20283.
2003-03-17 00:06:24 +00:00
jdolecek a0deb3e9c4 move union filesystem code from sys/miscfs/union to sys/fs/union 2003-03-16 08:26:46 +00:00
enami 464f962310 Release the hash lock on failure. 2003-03-15 00:22:47 +00:00
tron 98e6fa0c08 Teach procfs_allocvp() about Puptime to avoid panics if "/proc/uptime"
is opened.
2003-03-04 18:55:02 +00:00
jdolecek b49d58ec90 use different wmesg for the reader and the writer 2003-03-02 18:54:50 +00:00
hannken 11d5f11e82 Change "%llu" to "PRIu64" to make it compile on sparc64. 2003-02-27 12:20:28 +00:00
jrf a2d850baf8 This addresses PR kerm/19989. Thanks to hamajima@nagoya.ydc.co.jp for submitting this patch which enables /proc/uptime for linux emul. Patch reviewed by atatat@netbsd.org and tron@netbsd.org, approved by tron@netbsd.org. 2003-02-25 21:00:31 +00:00
thorpej eb14e86676 Add a new BUF_INIT() macro which initializes b_dep and b_interlock, and
use it.  This fixes a few places where either b_dep or b_interlock were
not properly initialized.
2003-02-25 20:35:31 +00:00
pk 2931081a79 Make updating a file's reference and use count MP-safe. 2003-02-23 14:37:32 +00:00
simonb ac161ae918 Remove assigned-to but not used variable. 2003-02-23 04:20:06 +00:00
perseant b397c875ae Add code to UBCify LFS. This is still behind "#ifdef LFS_UBC" for now
(there are still some details to work out) but expect that to go
away soon.  To support these basic changes (creation of lfs_putpages,
lfs_gop_write, mods to lfs_balloc) several other changes were made, to
wit:

* Create a writer daemon kernel thread whose purpose is to handle page
  writes for the pagedaemon, but which also takes over some of the
  functions of lfs_check().  This thread is started the first time an
  LFS is mounted.

* Add a "flags" parameter to GOP_SIZE.  Current values are
  GOP_SIZE_READ, meaning that the call should return the size of the
  in-core version of the file, and GOP_SIZE_WRITE, meaning that it
  should return the on-disk size.  One of GOP_SIZE_READ or
  GOP_SIZE_WRITE must be specified.

* Instead of using malloc(...M_WAITOK) for everything, reserve enough
  resources to get by and use malloc(...M_NOWAIT), using the reserves if
  necessary.  Use the pool subsystem for structures small enough that
  this is feasible.  This also obsoletes LFS_THROTTLE.

And a few that are not strictly necessary:

* Moves the LFS inode extensions off onto a separately allocated
  structure; getting closer to LFS as an LKM.  "Welcome to 1.6O."

* Unified GOP_ALLOC between FFS and LFS.

* Update LFS copyright headers to correct values.

* Actually cast to unsigned in lfs_shellsort, like the comment says.

* Keep track of which segments were empty before the previous
  checkpoint; any segments that pass two checkpoints both dirty and
  empty can be summarily cleaned.  Do this.  Right now lfs_segclean
  still works, but this should be turned into an effectless
  compatibility syscall.
2003-02-17 23:48:08 +00:00
pk 338f31f581 Make the buffer cache code MP-safe. 2003-02-05 21:38:38 +00:00
jdolecek b327a5601a don't bother special-casing DTYPE_KQUEUE/DTYPE_MISC nor panic for unknown
descriptors; just return with EOPNOTSUPP for any unsupported descriptor type
2003-02-03 22:29:07 +00:00
jdolecek b1fc5ffac3 procfs_allocvp():
* do not set *vpp unless successful, otherwise we'd trigger
    DIAGNOSTIC panic in lookup(9) on error return
  * on error, make sure to free malloc'ed memory and ungetnewvnode() the
    previously acquired vnode

this fixes panic on 'tail -f <file> &; ls -l /proc/$!/fd' reported by
Andrew Brown

fix reviewed by Christos Zoulas
2003-02-03 22:27:42 +00:00
thorpej b193480908 Add extensible malloc types, adapted from FreeBSD. This turns
malloc types into a structure, a pointer to which is passed around,
instead of an int constant.  Allow the limit to be adjusted when the
malloc type is defined, or with a function call, as suggested by
Jonathan Stone.
2003-02-01 06:23:35 +00:00
christos 3908d39e06 step 3. Assign lwp properly if null, so that we can PHOLD without segfaulting. 2003-01-21 00:01:14 +00:00
thorpej b78f59b443 Merge the nathanw_sa branch. 2003-01-18 08:51:40 +00:00
matt 5d09a84558 Add multiple inclusion protection. 2003-01-06 21:02:18 +00:00
wiz 1035faff1d writable, not writeable. 2003-01-06 20:30:28 +00:00
martin d30bd703a5 Cast off_t expression to long long to match format even on 64 bit
plattforms.

Shouldn't we introduce a PRIoff_t macro to create such format strings?
2003-01-04 15:42:35 +00:00
christos b5e0c9eb5b add LK_CANRECURSE in the locking of /dev/<pid>/fd/<n> and remove the curproc
kludge. Thanks to fvdl.
2003-01-03 13:54:22 +00:00
christos dbe6c38bc2 Implement /proc/<pid>/fd/<n>. This is work in progress. Questionable things:
- Is it ok to convert DTYPE_PIPE to VFIFO and DTYPE_SOCKET to VSOCK?
    - XXX: Avoid locking issue in ls -Rl /proc by avoiding curproc
    - Does I/O to pipes work?
    - XXX: Are there security implications?
2003-01-03 13:21:17 +00:00
lukem 0635de35a3 Remove KDIR=, since SYS_INCLUDE=symlinks and KDIR are not supported any more. 2002-11-26 23:30:07 +00:00
christos f5ff34bbc6 si_ -> sel_ 2002-11-26 18:51:18 +00:00
yamt bbbe3e07d7 genfs_compat_gop_write: set uio_iovcnt correctly. 2002-11-15 14:01:57 +00:00
thorpej ec2b09dc84 Fix a signed/unsigned comparison warning. 2002-11-07 08:21:36 +00:00
thorpej b7d2ca250a Fix signed/unsigned comparison warnings. 2002-11-07 08:13:10 +00:00
jdolecek c82ab2eb79 now that mem_no is emitted by config(8), there is no reason to keep
copy of more or less identical iskmemdev() for every arch; move the function
to spec_vnop.c, and g/c machine-dependant copies
2002-10-26 13:50:17 +00:00
yamt ac3a01e67e use B_ASYNC for children of nested buffers in genfs_getpages.
ok'ed by Chuck Silvers.
2002-10-25 05:44:41 +00:00
jdolecek e0cc03a09b merge kqueue branch into -current
kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe
2002-10-23 09:10:23 +00:00
fvdl eb485a7e27 Use B_ASYNC in the !PGO_SYNCIO case. Gets back most, if not all, NFS
read throughput performance lost since the introduction of UBC. Spotted
by YAMAMOTO Takashi, many thanks to him.
2002-10-21 15:21:35 +00:00
jdolecek affeea595d put back the while loop in kernfs_getattr() removed in rev 1.82; it's
necessary to get the whole file length e.g. for msgbuf

this fixes the '/kern/msgbuf & less' problem reported on port-i386
by Dave Tyson
2002-10-12 14:04:45 +00:00
provos 0f09ed48a5 remove trailing \n in panic(). approved perry. 2002-09-27 15:35:29 +00:00
christos 6868d0a7d6 MNT_GETARGS support 2002-09-21 18:08:27 +00:00
jtk 2bbcff81d5 restore ancestral RCS ID from 4.4BSD-Lite2 2002-09-10 02:52:40 +00:00
gehenna 77a6b82b27 Merge the gehenna-devsw branch into the trunk.
This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

	device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
  by using this grammer.

- Added the new naming convention.
  The name of the device switch must be <prefix>_[bc]devsw for auto-generation
  of device switch tables.

- The backward compatibility of loading block/character device
  switch by LKM framework is broken. This is necessary to convert
  from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
  We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
  the LKM framework will refer it to assign device major number dynamically.
2002-09-06 13:18:43 +00:00
thorpej 3767580d1a Fix a signed/unsigned comparison warning from GCC 3.3. 2002-08-26 01:26:29 +00:00
simonb c475865f39 Just use the "time" variable in the *_getattr functions instead of a call
to (the potentially expensive) microtime().
2002-08-03 04:52:44 +00:00
soren 178d83d503 Die, qaddr_t, die! - mnt_data in struct mount is already effectively
a void *, so stop pretending otherwise.
2002-07-30 07:40:07 +00:00
chs e697956ce6 we can't use the vnode's v_usecount to track how many times the vnode
has been VOP_OPEN()'d.  if the fifo is being accessed via a layered fs,
v_usecount is always one (representing the hold by the layered vnode)
regardless of how many times the vnode has been opened.  instead, keep a
separate counter for opens.  fixes PR 17195 and probably 17724.
2002-07-27 16:43:36 +00:00
jdolecek 02eb342b57 Make sure that the pointer to old parent process for ptraced children
gets reset properly when the old parent exits before the child. A flag
is set in old parent process when the child is reparented in ptrace(2).
If it's set when process is exiting, all running processes have their
'old parent process' pointer checked and reset if appropriate. Also
change to use 'struct proc *' pointer directly, rather than pid_t.
This fixes security/14444 by David Sainty.

Reviewed by Christos Zoulas.
2002-07-25 20:04:02 +00:00
jdolecek 9c55530336 Properly detect error in kernfs_xread().
Fixes kern/10278 by IWAMOTO Toshihiro, though implemented different way.

While here, clean up some int vs. size_t confusion, make
kernfs_x{read|write}() static and g/c some #if 0 stuff.
2002-07-19 18:35:44 +00:00
wiz 4b20971f01 Spell acquire with a 'c'. 2002-07-10 23:16:32 +00:00
lukem b8e7104984 be consistent about how va_[acm]time is set to the current time
(inspired by how procfs does it)
2002-07-05 03:24:06 +00:00
lukem 20657af5c3 set vap->va_ctime to vap->va_atime (the current time),
rather than vap->va_ctime (which is a no-op).
2002-07-05 02:02:00 +00:00
enami 9e1deeab34 Add missing pageq lock while uvm_pagefree() is called (either directly
or indirectly).  Reviewed by chuq.
2002-05-29 11:04:39 +00:00
enami 1578726840 Just give up to do readahead rather than waiting busy pages.
While I'm here, added few patchable variable so that one can
easily measure readahead behaviour.
2002-05-18 02:54:57 +00:00
perseant 3fa1c8abe9 Protect v_synclist with splbio(); note that LIST_REMOVE is not an idempotent
operation if more than one LIST_REMOVE happens on interrupt, so both the test
for VONWORKLIST and the LIST_REMOVE(vp, v_synclist) need to be in splbio().
2002-05-14 19:37:18 +00:00
matt ea5cd1699b Extern speclisth 2002-05-12 20:42:03 +00:00
enami 293906a53a Redo rev. 1.57 a bit different way; don't use `tpg' since it may be freed.
Subtract the number of pages behind us when calculating new offset instead.
2002-05-10 07:51:37 +00:00
enami 911c9febb2 Don't modify the local variable `n' in genfs_putpages(). It should contain
the number of elements in the page array at the beginning of every iteration.
2002-05-10 02:51:44 +00:00
thorpej f1f51aa2b8 Move code shared by procfs and the kernel proper out of procfs and
into the kernel proper (renaming functions from procfs_* to process_*).
2002-05-09 15:44:44 +00:00
enami e3cc9c0682 When traversing by list, if the page next to us is a page in the cluster,
advance the pointer.
2002-05-09 07:22:09 +00:00
enami fabaf9a730 - In genfs_putpages(), no need to restrict the cluster within the given
region.
- In uvm_aio_aiodone(), remove assertions no longer true.
2002-05-09 07:14:37 +00:00
enami 8876669f4c Since npages may includes number of pages behind us, we can't use it to
update current offset.  Instead, use the last page in the run of pages
to calculate new offset.
2002-05-06 00:42:22 +00:00
enami e6513c283e Stylistic change; introduce new local variable and use it instead of
sprinkling different expression to test if we're pagedaemon.
2002-05-06 00:18:15 +00:00
enami 6335b88f05 We don't need to re-activate page in genfs_putpages() when GOP_WRITE returns
ENOMEM (temporary memory shortage) since it is already handled in
uvm_aio_aiodone() for both async/sync case.  Discussed with chuq.
2002-04-26 03:57:31 +00:00
thorpej 37dc008ca3 Cleanup how file system configuration information is declared, grouping
related information together, with the file system code itself.

This is just low-hanging fruit -- more to come.
2002-04-16 23:14:05 +00:00
enami 6cfcfb947c genfs_{compat_}getpages(): For PGO_LOCKED request, it is safe to return
read only page if it was due to read fault.  This avoid many unnecessary
read fault introduced by recent nfs_bio.c change.  Reviewed by chuq.
2002-04-16 06:05:05 +00:00
enami 08625200a0 KNF and other misc. cosmetic changes. 2002-04-16 06:00:46 +00:00
jdolecek 83bb6f6dd7 Changes to make it less likely to need to be revisited later again:
* fdesc_attr(): don't panic for 'unknown' descriptor types, rather use
  (*fp->f_ops->fo_stat)() hook, as for DTYPE_SOCKET and DTYPE_PIPE
  XXX perhaps use different vnode type than VBAD for these?
* fdesc_setattr(): just return 0 regardless of type, rather than paniccing
  for 'unknown' descriptor types
2002-04-02 17:46:06 +00:00