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* Forgot cvs rm in last file.Poul-Henning Kamp2005-03-141-169/+0
| | | | Notes: svn path=/head/; revision=143579
* Use vfs_hash() instead of home-rolledPoul-Henning Kamp2005-03-141-4/+4
| | | | Notes: svn path=/head/; revision=143578
* /* -> /*- for copyright notices, minor format tweaks as necessaryWarner Losh2005-01-061-1/+1
| | | | Notes: svn path=/head/; revision=139778
* Do the dreaded s/dev_t/struct cdev */Poul-Henning Kamp2004-06-161-2/+2
| | | | | | | Bump __FreeBSD_version accordingly. Notes: svn path=/head/; revision=130585
* Remove advertising clause from University of California Regent'sWarner Losh2004-04-071-4/+0
| | | | | | | | | | license, per letter dated July 22, 1999 and email from Peter Wemm, Alan Cox and Robert Watson. Approved by: core, peter, alc, rwatson Notes: svn path=/head/; revision=128019
* Regularize the vop_stdlock'ing protocol across all the filesystemsKirk McKusick2002-10-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | that use it. Specifically, vop_stdlock uses the lock pointed to by vp->v_vnlock. By default, getnewvnode sets up vp->v_vnlock to reference vp->v_lock. Filesystems that wish to use the default do not need to allocate a lock at the front of their node structure (as some still did) or do a lockinit. They can simply start using vn_lock/VOP_UNLOCK. Filesystems that wish to manage their own locks, but still use the vop_stdlock functions (such as nullfs) can simply replace vp->v_vnlock with a pointer to the lock that they wish to have used for the vnode. Such filesystems are responsible for setting the vp->v_vnlock back to the default in their vop_reclaim routine (e.g., vp->v_vnlock = &vp->v_lock). In theory, this set of changes cleans up the existing filesystem lock interface and should have no function change to the existing locking scheme. Sponsored by: DARPA & NAI Labs. Notes: svn path=/head/; revision=105077
* Use hashdestroy() now that it exists.Ian Dowse2002-06-301-6/+1
| | | | Notes: svn path=/head/; revision=99102
* Add an ext2_uninit() routine that undoes the actions performed byIan Dowse2002-05-181-0/+17
| | | | | | | | ext2_init(). This permits the ext2fs module to be unloaded without causing panics and leaking memory. Notes: svn path=/head/; revision=96881
* Following a repo-copy from src/sys/ufs/ufs, rename functions andIan Dowse2002-05-141-21/+20
| | | | | | | | | | | | | structures etc. to ext2fs-specific names, and remove ufs-specific code that is no longer required. As a first stage, the code will still convert back and forth between the on-disk format and struct inode, so the struct dinode fields have been added to struct inode for now. Note that these files are not yet connected to the build. Notes: svn path=/head/; revision=96596
* Change callers of mtx_init() to pass in an appropriate lock type name. InJohn Baldwin2002-04-041-1/+1
| | | | | | | | | | most cases NULL is passed, but in some cases such as network driver locks (which use the MTX_NETWORK_LOCK macro) and UMA zone locks, a name is used. Tested on: i386, alpha, sparc64 Notes: svn path=/head/; revision=93818
* Add a flags parameter to VFS_VGET to pass through the desiredKirk McKusick2002-03-171-5/+13
| | | | | | | | | | | | | | | locking flags when acquiring a vnode. The immediate purpose is to allow polling lock requests (LK_NOWAIT) needed by soft updates to avoid deadlock when enlisting other processes to help with the background cleanup. For the future it will allow the use of shared locks for read access to vnodes. This change touches a lot of files as it affects most filesystems within the system. It has been well tested on FFS, loopback, and CD-ROM filesystems. only lightly on the others, so if you find a problem there, please let me (mckusick@mckusick.com) know. Notes: svn path=/head/; revision=92462
* KSE Milestone 2Julian Elischer2001-09-121-4/+5
| | | | | | | | | | | | | | | | | Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha Notes: svn path=/head/; revision=83366
* Change and clean the mutex lock interface.Bosko Milekic2001-02-091-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mtx_enter(lock, type) becomes: mtx_lock(lock) for sleep locks (MTX_DEF-initialized locks) mtx_lock_spin(lock) for spin locks (MTX_SPIN-initialized) similarily, for releasing a lock, we now have: mtx_unlock(lock) for MTX_DEF and mtx_unlock_spin(lock) for MTX_SPIN. We change the caller interface for the two different types of locks because the semantics are entirely different for each case, and this makes it explicitly clear and, at the same time, it rids us of the extra `type' argument. The enter->lock and exit->unlock change has been made with the idea that we're "locking data" and not "entering locked code" in mind. Further, remove all additional "flags" previously passed to the lock acquire/release routines with the exception of two: MTX_QUIET and MTX_NOSWITCH The functionality of these flags is preserved and they can be passed to the lock/unlock routines by calling the corresponding wrappers: mtx_{lock, unlock}_flags(lock, flag(s)) and mtx_{lock, unlock}_spin_flags(lock, flag(s)) for MTX_DEF and MTX_SPIN locks, respectively. Re-inline some lock acq/rel code; in the sleep lock case, we only inline the _obtain_lock()s in order to ensure that the inlined code fits into a cache line. In the spin lock case, we inline recursion and actually only perform a function call if we need to spin. This change has been made with the idea that we generally tend to avoid spin locks and that also the spin locks that we do have and are heavily used (i.e. sched_lock) do recurse, and therefore in an effort to reduce function call overhead for some architectures (such as alpha), we inline recursion for this case. Create a new malloc type for the witness code and retire from using the M_DEV type. The new type is called M_WITNESS and is only declared if WITNESS is enabled. Begin cleaning up some machdep/mutex.h code - specifically updated the "optimized" inlined code in alpha/mutex.h and wrote MTX_LOCK_SPIN and MTX_UNLOCK_SPIN asm macros for the i386/mutex.h as we presently need those. Finally, caught up to the interface changes in all sys code. Contributors: jake, jhb, jasone (in no particular order) Notes: svn path=/head/; revision=72200
* Use <sys/queue.h> macro API.Poul-Henning Kamp2001-02-041-2/+2
| | | | Notes: svn path=/head/; revision=71998
* Remove a DIAGNOSTIC check which belongs in <sys/queue.h> if anyplace at all.Poul-Henning Kamp2001-02-041-4/+0
| | | | Notes: svn path=/head/; revision=71993
* Convert all simplelocks to mutexes and remove the simplelock implementations.Jason Evans2001-01-241-15/+12
| | | | Notes: svn path=/head/; revision=71576
* Remove unneeded #include <sys/proc.h> lines.Poul-Henning Kamp2000-10-291-1/+0
| | | | Notes: svn path=/head/; revision=67882
* Convert lockmgr locks from using simple locks to using mutexes.Jason Evans2000-10-041-2/+4
| | | | | | | | | Add lockdestroy() and appropriate invocations, which corresponds to lockinit() and must be called to clean up after a lockmgr lock is no longer needed. Notes: svn path=/head/; revision=66615
* Add a lock structure to vnode structure. Previously it was either allocatedBoris Popov2000-09-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | separately (nfs, cd9660 etc) or keept as a first element of structure referenced by v_data pointer(ffs). Such organization leads to known problems with stacked filesystems. From this point vop_no*lock*() functions maintain only interlock lock. vop_std*lock*() functions maintain built-in v_lock structure using lockmgr(). vop_sharedlock() is compatible with vop_stdunlock(), but maintains a shared lock on vnode. If filesystem wishes to export lockmgr compatible lock, it can put an address of this lock to v_vnlock field. This indicates that the upper filesystem can take advantage of it and use single lock structure for entire (or part) of stack of vnodes. This field shouldn't be examined or modified by VFS code except for initialization purposes. Reviewed in general by: mckusick Notes: svn path=/head/; revision=66355
* Back out the previous change to the queue(3) interface.Jake Burkholder2000-05-261-1/+1
| | | | | | | | | It was not discussed and should probably not happen. Requested by: msmith and others Notes: svn path=/head/; revision=60938
* Change the way that the queue(3) structures are declared; don't assume thatJake Burkholder2000-05-231-1/+1
| | | | | | | | | | | the type argument to *_HEAD and *_ENTRY is a struct. Suggested by: phk Reviewed by: phk Approved by: mdodd Notes: svn path=/head/; revision=60833
* $Id$ -> $FreeBSD$Peter Wemm1999-08-281-1/+1
| | | | Notes: svn path=/head/; revision=50477
* Divorce "dev_t" from the "major|minor" bitmap, which is now calledPoul-Henning Kamp1999-05-111-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | udev_t in the kernel but still called dev_t in userland. Provide functions to manipulate both types: major() umajor() minor() uminor() makedev() umakedev() dev2udev() udev2dev() For now they're functions, they will become in-line functions after one of the next two steps in this process. Return major/minor/makedev to macro-hood for userland. Register a name in cdevsw[] for the "filedescriptor" driver. In the kernel the udev_t appears in places where we have the major/minor number combination, (ie: a potential device: we may not have the driver nor the device), like in inodes, vattr, cdevsw registration and so on, whereas the dev_t appears where we carry around a reference to a actual device. In the future the cdevsw and the aliased-from vnode will be hung directly from the dev_t, along with up to two softc pointers for the device driver and a few houskeeping bits. This will essentially replace the current "alias" check code (same buck, bigger bang). A little stunt has been provided to try to catch places where the wrong type is being used (dev_t vs udev_t), if you see something not working, #undef DEVT_FASCIST in kern/kern_conf.c and see if it makes a difference. If it does, please try to track it down (many hands make light work) or at least try to reproduce it as simply as possible, and describe how to do that. Without DEVT_FASCIST I belive this patch is a no-op. Stylistic/posixoid comments about the userland view of the <sys/*.h> files welcome now, from userland they now contain the end result. Next planned step: make all dev_t's refer to the same devsw[] which means convert BLK's to CHR's at the perimeter of the vnodes and other places where they enter the game (bootdev, mknod, sysctl). Notes: svn path=/head/; revision=47028
* Ifdefed conditionally used simplock variables.Bruce Evans1999-01-021-1/+3
| | | | Notes: svn path=/head/; revision=42248
* add #include <sys/kernel.h> where it's needed by MALLOC_DEFINE()Peter Wemm1998-11-101-1/+2
| | | | Notes: svn path=/head/; revision=41059
* Staticize.Eivind Eklund1998-02-091-4/+4
| | | | Notes: svn path=/head/; revision=33181
* Back out DIAGNOSTIC changes.Eivind Eklund1998-02-061-3/+1
| | | | Notes: svn path=/head/; revision=33134
* Turn DIAGNOSTIC into a new-style option.Eivind Eklund1998-02-041-1/+3
| | | | Notes: svn path=/head/; revision=33108
* Don't include <sys/lock.h> in headers when only `struct simplelock' isBruce Evans1997-12-051-1/+2
| | | | | | | required. Fixed everything that depended on the pollution. Notes: svn path=/head/; revision=31561
* IN_HASHED goes in the in-core flags ip->i_flag, not in the on-disk flagsBruce Evans1997-10-151-4/+4
| | | | | | | | | | | | ip->i_flags. Rev.1.18 completely broke ufs. My root directory went away about 10 seconds after booting. I think file system damage was null, since IN_HASHED = 0x80 is not used in the disk flags (it would probably be UF_SOMETHING if it were used). Notes: svn path=/head/; revision=30428
* Reset the flag right away, could catch a bogon someday.Poul-Henning Kamp1997-10-141-1/+2
| | | | Notes: svn path=/head/; revision=30419
* I think my previous change may have opened a race conditio.Poul-Henning Kamp1997-10-141-4/+7
| | | | | | | This patch does the same thing, with no change in semantics. Notes: svn path=/head/; revision=30418
* Last major round (Unless Bruce thinks of somthing :-) of malloc changes.Poul-Henning Kamp1997-10-121-2/+3
| | | | | | | | | | | Distribute all but the most fundamental malloc types. This time I also remembered the trick to making things static: Put "static" in front of them. A couple of finer points by: bde Notes: svn path=/head/; revision=30354
* Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are notPeter Wemm1997-02-221-1/+1
| | | | | | | ready for it yet. Notes: svn path=/head/; revision=22975
* This is the kernel Lite/2 commit. There are some requisite userlandJohn Dyson1997-02-101-67/+50
| | | | | | | | | | | | | | | | | | changes, so don't expect to be able to run the kernel as-is (very well) without the appropriate Lite/2 userland changes. The system boots and can mount UFS filesystems. Untested: ext2fs, msdosfs, NFS Known problems: Incorrect Berkeley ID strings in some files. Mount_std mounts will not work until the getfsent library routine is changed. Reviewed by: various people Submitted by: Jeffery Hsu <hsu@freebsd.org> Notes: svn path=/head/; revision=22521
* Make the long-awaited change from $Id$ to $FreeBSD$Jordan K. Hubbard1997-01-141-1/+1
| | | | | | | | | | | This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise. Notes: svn path=/head/; revision=21673
* Changes to get rid of ufslk2 hangs when doing read/write to/fromJohn Dyson1995-04-241-7/+17
| | | | | | | mmap regions that are in the same file as the read/write. Notes: svn path=/head/; revision=8041
* POSSIBLE BOGUS CODE found, (related to dos-partitions) in ufs_disksubr.c,Poul-Henning Kamp1994-10-081-3/+5
| | | | | | | | look for CC_WALL. Cosmetics, a couple of unused vars. Notes: svn path=/head/; revision=3427
* Use tsleep() rather than sleep so that 'ps' is more informative aboutDavid Greenman1994-10-061-2/+2
| | | | | | | the wait. Notes: svn path=/head/; revision=3396
* Added $Id$David Greenman1994-08-021-0/+1
| | | | Notes: svn path=/head/; revision=1817
* BSD 4.4 Lite Kernel SourcesRodney W. Grimes1994-05-241-0/+154
Notes: svn path=/head/; revision=1541
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