Commit Graph

1349 Commits

Author SHA1 Message Date
Seigo Tanimura
512824f8f7 - Implement selwakeuppri() which allows raising the priority of a
thread being waken up.  The thread waken up can run at a priority as
  high as after tsleep().

- Replace selwakeup()s with selwakeuppri()s and pass appropriate
  priorities.

- Add cv_broadcastpri() which raises the priority of the broadcast
  threads.  Used by selwakeuppri() if collision occurs.

Not objected in:	-arch, -current
2003-11-09 09:17:26 +00:00
Scott Long
6565282c62 Add hooks for translating directories entries using the iconv methods.
Submitted by: imura@ryu16.org
2003-11-05 06:56:08 +00:00
Scott Long
c5a1bf1b20 Add udf_UncompressUnicodeByte() for processing cs0 strings in a way that the
iconv mehtods can handle

Submitted by: imura@ryu16.org
2003-11-05 06:55:23 +00:00
Alexander Kabaev
ca430f2e92 Remove mntvnode_mtx and replace it with per-mountpoint mutex.
Introduce two new macros MNT_ILOCK(mp)/MNT_IUNLOCK(mp) to
operate on this mutex transparently.

Eventually new mutex will be protecting more fields in
struct mount, not only vnode list.

Discussed with: jeff
2003-11-05 04:30:08 +00:00
Alexander Kabaev
cb9ddc80ae Take care not to call vput if thread used in corresponding vget
wasn't curthread, i.e. when we receive a thread pointer to use
as a function argument. Use VOP_UNLOCK/vrele in these cases.

The only case there td != curthread known at the moment is
boot() calling sync with thread0 pointer.

This fixes the panic on shutdown people have reported.
2003-11-02 04:52:53 +00:00
Alexander Kabaev
9185a9f5e3 Remove now unused variable. 2003-11-01 15:04:50 +00:00
Alexander Kabaev
492c1e68fb Temporarily undo parts of the stuct mount locking commit by jeff.
It is unsafe to hold a mutex across vput/vrele calls.

This will be redone when a better locking strategy is agreed upon.

Discussed with: jeff
2003-11-01 05:51:54 +00:00
Alexander Kabaev
b792e03079 Do not bother walking mount point vnode list just to calculate
the number of vnodes. Use precomputed mp->mnt_nvnodelistsize
value instead.
2003-11-01 04:36:50 +00:00
Poul-Henning Kamp
8b285b9088 Remember to check the DE_WHITEOUT flag in the case where a cloned
device is hidden by a devfs(8) rule.

Spotted by:	 Adam Nowacki <ptnowak@bsk.vectranet.pl>
2003-10-20 15:08:10 +00:00
Poul-Henning Kamp
7e8766a940 When a driver successfully created a device on demand, we can directly
pick up the DEVFS inode number from the dev_t and find our directory
entry from that, we don't need to scan the directory to find it.

This also solves an issue with on-demand devices in subdirectories.

Submitted by:	cognet
2003-10-20 07:04:09 +00:00
Maxime Henrion
6fb826df1c Remove debug printf(). 2003-10-19 14:33:00 +00:00
Poul-Henning Kamp
01758670e9 Initialize b_iooffset before calling strategy 2003-10-18 19:48:21 +00:00
Poul-Henning Kamp
2c18019f14 DuH!
bp->b_iooffset (the spot on the disk), not bp->b_offset (the offset in
the file)
2003-10-18 14:10:28 +00:00
Poul-Henning Kamp
f14676dc6f Initialize b_offset before calling VOP_SPECSTRATEGY() 2003-10-18 11:08:33 +00:00
Poul-Henning Kamp
c87b01a0fd Initialize b_offset before calling VOP_STRATEGY/VOP_SPECSTRATEGY.
Remove various comments of KASSERTS and comments about B_PHYS which
does not apply anymore.
2003-10-18 11:06:15 +00:00
Poul-Henning Kamp
583b92e328 Convert some if(bla) panic("foo") to KASSERTS to improve grep-ability. 2003-10-18 09:32:39 +00:00
Poul-Henning Kamp
0023f61848 Introduce a new optional memberfunction for cdevsw, fdopen() which
passes the fdidx from VOP_OPEN down.

This is for all I know the final API for this functionality, but
the locking semantics for messing with the filedescriptor from
the device driver are not settled at this time.
2003-10-15 20:00:59 +00:00
Bruce Evans
201e0377ca Include <sys/mutex.h>. Don't depend on namespace pollution in <sys/vnode.h>.
Fixed a nearby style bug.  The include of vcoda.h used angle brackets and
was not used.
2003-10-05 07:44:45 +00:00
Jeff Roberson
4ab2c8bd52 - Check the XLOCK prior to inspecting v_data. 2003-10-05 06:44:53 +00:00
Jeff Roberson
055cfed702 - Check XLOCK prior to accessing v_data. 2003-10-05 06:43:30 +00:00
Jeff Roberson
7bfaa956e8 - Don't cache_purge() in cd9660_reclaim. vclean() does it for us so
this is redundant.
2003-10-05 02:45:36 +00:00
Jeff Roberson
9c695a2697 - Don't cache_purge() in *_reclaim routines. vclean() does it for us so
this is redundant.
2003-10-05 02:43:30 +00:00
Alan Cox
6caf7e9fa4 Synchronize access to a vm page's valid field using the containing
vm object's lock.
2003-10-04 23:37:38 +00:00
Jeff Roberson
0c31ea3b2d - Make proper use of the mntvnode_mtx. We do not need the loop label
because we do not drop the mntvnode_mtx.  If this code had ever executed
   and hit the loop condition it would have spun forever.
2003-10-04 13:16:54 +00:00
Jeff Roberson
c13c04a426 - Acquire the vnode interlock prior to droping the mntvnode_mtx. This does
not eliminate races where the vnode could be reclaimed and end up with
   a NULL v_data pointer but Giant is protecting us from that at the moment.
2003-10-04 12:52:37 +00:00
Alan Cox
10e9e2d1b9 Synchronize access to a page's valid field by using the lock from its
containing object.
2003-10-04 09:20:00 +00:00
Jeff Roberson
8b5905a47d - Remove the backtrace() call from the *_vinvalbuf() functions. Thanks to a
stack trace supplied by phk, I now understand what's going on here.  The
   check for VI_XLOCK stops us from calling vinvalbuf once the vnode has been
   partially torn down in vclean().  It is not clear that this would cause
   a problem.  Document this in nfs_bio.c, which is where the other two
   filesystems copied this code from.
2003-10-04 08:51:50 +00:00
Jacques Vidrine
8b7358ca43 Introduce a uiomove_frombuf helper routine that handles computing and
validating the offset within a given memory buffer before handing the
real work off to uiomove(9).

Use uiomove_frombuf in procfs to correct several issues with
integer arithmetic that could result in underflows/overflows.  As a
side-effect, the code is significantly simplified.

Add additional sanity checks when computing a memory allocation size
in pfs_read.

Submitted by:	rwatson  (original uiomove_frombuf -- bugs are mine :-)
Reported by:	Joost Pol <joost@pine.nl>  (integer underflows/overflows)
2003-10-02 15:00:55 +00:00
Robert Watson
309cd88432 Add a new column to the procfs map to hold the name of the mapped
file for vnode mappings.  Note that this uses vn_fullpath() and may
be somewhat unreliable, although not too unreliable for shared
libraries.  For non-vnode mappings, just print "-" for the field.

Obtained from:	TrustedBSD Projects
Sponsored by:	DARPA, AFRL, Network Associates Laboratories
2003-09-29 20:53:19 +00:00
Poul-Henning Kamp
25d6da1b5e forgot to remove static declaration of fdesc_poll() 2003-09-27 12:34:41 +00:00
Poul-Henning Kamp
f1cf3def78 fdesc_poll() called seltrue() to do the default thing, this is pointlessly
wrong when we have a default in vop_nopoll() which does the right thing.
2003-09-27 12:24:42 +00:00
Bruce Evans
67425e4678 Fixed some style bugs in previous commit. Mainly, forward-declare
struct msdosfsmount so that this file has the same prerequisites as
it used to.  The new prerequistite was a meta-style bug.  It required
many style bugs (unsorted includes ...) elsewhere.

Formatted prototypes in KNF.  Resisted urge to sort all the prototypes,
to minimise differences with NetBSD.  (NetBSD has reformatted the
prototypes but has not sorted them and  still uses __P(()).)
2003-09-27 01:18:27 +00:00
Max Khon
c4f02a891f - Support for multibyte charsets in LIBICONV.
- CD9660_ICONV, NTFS_ICONV and MSDOSFS_ICONV kernel options
(with corresponding modules).
- kiconv(3) for loadable charset conversion tables support.

Submitted by:	Ryuichiro Imura <imura@ryu16.org>
2003-09-26 20:26:25 +00:00
Tim J. Robbins
aa808a7fa6 Allow the [, ], and = characters in non-8.3 filenames since they
are allowed by Windows (ref: MS KB article 120138).

XXX From my reading of the CIFS specification, it's not clear that
clients need to validate filenames at all.

PR:		57123
Submitted by:	Paul Coucher
MFC after:	1 month
2003-09-26 12:11:08 +00:00
Jeff Roberson
ce1fb23146 - Remove interlock protection around VI_XLOCK. The interlock is not
sufficient to guarantee that this race is not hit.  The XLOCK will likely
   have to be redesigned due to the way reference counting and mutexes work
   in FreeBSD.  We currently can not be guaranteed that xlock was not set
   and cleared while we were blocked on the interlock while waiting to check
   for XLOCK.  This would lead us to reference a vnode which was not the
   vnode we requested.
 - Add a backtrace() call inside of INVARIANTS in the hopes of finding out if
   this condition is ever hit.  It should not, since we should be retaining
   a reference to the vnode in these cases.  The reference would be sufficient
   to block recycling.
2003-09-19 23:37:49 +00:00
Tim J. Robbins
5f39b226ce Move an overly verbose message under #ifdef CODA_VERBOSE. 2003-09-13 01:13:56 +00:00
Tim J. Robbins
e1d237ec05 Move an annoying printf() call that gets triggered every time an
operation is interrupted (with ^C or ^Z) under CODA_VERBOSE.
2003-09-10 01:41:15 +00:00
Tim J. Robbins
d14e51c95c Add support for the Coda 6.x venus<->kernel interface. This extends
FIDs to be 128-bits wide and adds support for realms.

Add a new CODA_COMPAT_5 option, which requests support for the old
Coda 5.x interface instead of the new one.

Create a new coda5.ko module that supports the 5.x interface, and make
the existing coda.ko module use the new 6.x interface. These modules
cannot both be loaded at the same time.

Obtained from:	Jan Harkes & the coda-6.0.2 distribution,
		NetBSD (drochner) (CODA_COMPAT_5 option).
2003-09-07 07:43:10 +00:00
Marcel Moolenaar
fccf82902d The valid field in struct vm_page can be of type unsigned long when
32K pages are selected. In spec_getpages() change the printf format
specifier and add an explicit cast so that we always print the field
as a long type.
2003-08-28 01:52:14 +00:00
Alan Cox
49dc7ac17d Use the requested page's object field instead of the vnode's. In some
cases, the vnode's object field is not initialized leading to a NULL
pointer dereference when the object is locked.

Tested by:	rwatson
2003-08-22 17:50:32 +00:00
Dag-Erling Smørgrav
134ce0f9cc Add pfs_visible() checks to pfs_getattr() and pfs_getextattr(). This
also fixes pfs_access() since it relies on VOP_GETATTR() which will call
pfs_getattr().  This prevents jailed processes from discovering the
existence, start time and ownership of processes outside the jail.

PR:		kern/48156
2003-08-19 10:26:41 +00:00
John Baldwin
d49ebea58c Spell the name of the lock right in addition to getting the type right.
Submitted by:	Kim Culhan <kimc@w8hd.org>
2003-08-18 19:23:01 +00:00
John Baldwin
cda369cac4 The allproc lock is a sx lock, not a mutex, so fix the assertion. This
asserts that the sx lock is held, but does not specify if the lock is held
shared or exclusive, thus either type of lock satisfies the assertion.
2003-08-18 18:02:33 +00:00
Dag-Erling Smørgrav
653fae1761 Rework pfs_iterate() a bit to eliminate a bug related to process
directories.  Previously, pfs_iterate() would return -1 when it
reached the end of the process list while processing a process
directory node, even if the parent directory contained further nodes
(which is the case for the linprocfs root directory, where the process
directory node is actually first in the list).  With this patch,
pfs_iterate() will continue to traverse the parent directory's node
list after exhausting the process list (as was the intention all
along).  The code should hopefully be easier to read as well.

While I'm here, have pfs_iterate() assert that the allproc lock is
held.
2003-08-18 13:36:09 +00:00
Poul-Henning Kamp
29796304f8 Do not call VOP_BMAP() on our own vnodes.
It is particularly silly when all it does is a minor piece of math.
2003-08-17 23:00:30 +00:00
Robert Watson
946e86b7e1 Add p_candebug() check to access a process map file in procfs; limit
access to map information for processes that you wouldn't otherwise
have debug rights on.

Tested by:	bms
2003-08-14 15:26:44 +00:00
Tom Rhodes
c98a31cad3 Add a '-M mask' option so that users can have different
masks for files and directories.  This should make some
of the Midnight Commander users happy.

Remove an extra ')' in the manual page.

PR:		35699
Submitted by:	Eugene Grosbein <eugen@grosbein.pp.ru> (original version)
Tested by:	simon
2003-08-12 20:06:56 +00:00
John Baldwin
8b149b5131 Consistently use the BSD u_int and u_short instead of the SYSV uint and
ushort.  In most of these files, there was a mixture of both styles and
this change just makes them self-consistent.

Requested by:	bde (kern_ktrace.c)
2003-08-07 15:04:27 +00:00
Poul-Henning Kamp
291faa1677 Don't drop giant around ->d_strategy(), too much code explodes. 2003-08-06 06:49:18 +00:00
Poul-Henning Kamp
f4a3d9da6e Only drop Giant around the drivers ->d_strategy() if the buffer is not
marked to prevent this.
2003-08-05 06:43:56 +00:00