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* sys: Remove ancient SCCS tags.Warner Losh2023-11-271-2/+0
| | | | | | | | Remove ancient SCCS tags from the tree, automated scripting, with two minor fixup to keep things compiling. All the common forms in the tree were removed with a perl script. Sponsored by: Netflix
* sys: Remove $FreeBSD$: one-line .h patternWarner Losh2023-08-161-1/+0
| | | | Remove /^\s*\*+\s*\$FreeBSD\$.*$\n/
* deadfs: consistently return EOPNOTSUPP for fplookup vopsMateusz Guzik2023-04-061-1/+1
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* vn_open(): If the vnode is reclaimed during open(2), do not return error.Konstantin Belousov2021-02-121-2/+9
| | | | | | | | | | | | | | Most future operations on the returned file descriptor will fail anyway, and application should be ready to handle that failures. Not forcing it to understand the transient failure mode on open, which is implementation-specific, should make us less special without loss of reporting of errors. Suggested by: chs Reviewed by: chs, mckusick Tested by: pho MFC after: 2 weeks Sponsored by: The FreeBSD Foundation
* cache: add symlink support to lockless lookupMateusz Guzik2021-01-231-0/+1
| | | | | | Reviewed by: kib (previous version) Tested by: pho (previous version) Differential Revision: https://reviews.freebsd.org/D27488
* cache: fix vexec panic when racing against vgoneMateusz Guzik2020-10-091-0/+1
| | | | | | | | | | | | | | Use of dead_vnodeops would result in a panic instead of returning the intended EOPNOTSUPP error. While here make sure to abort, not just try to return a partial result. The former allows the regular lookup to restart from scratch, while the latter makes it stuck with an unusable vnode. Reported by: kevans Notes: svn path=/head/; revision=366582
* vfs: flatten vop vectorsMateusz Guzik2019-12-161-0/+1
| | | | | | | | | | | | | | | This eliminates the following loop from all VOP calls: while(vop != NULL && \ vop->vop_spare2 == NULL && vop->vop_bypass == NULL) vop = vop->vop_default; Reviewed by: jeff Tesetd by: pho Differential Revision: https://reviews.freebsd.org/D22738 Notes: svn path=/head/; revision=355790
* Switch to use shared vnode locks for text files during image activation.Konstantin Belousov2019-05-051-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kern_execve() locks text vnode exclusive to be able to set and clear VV_TEXT flag. VV_TEXT is mutually exclusive with the v_writecount > 0 condition. The change removes VV_TEXT, replacing it with the condition v_writecount <= -1, and puts v_writecount under the vnode interlock. Each text reference decrements v_writecount. To clear the text reference when the segment is unmapped, it is recorded in the vm_map_entry backed by the text file as MAP_ENTRY_VN_TEXT flag, and v_writecount is incremented on the map entry removal The operations like VOP_ADD_WRITECOUNT() and VOP_SET_TEXT() check that v_writecount does not contradict the desired change. vn_writecheck() is now racy and its use was eliminated everywhere except access. Atomic check for writeability and increment of v_writecount is performed by the VOP. vn_truncate() now increments v_writecount around VOP_SETATTR() call, lack of which is arguably a bug on its own. nullfs bypasses v_writecount to the lower vnode always, so nullfs vnode has its own v_writecount correct, and lower vnode gets all references, since object->handle is always lower vnode. On the text vnode' vm object dealloc, the v_writecount value is reset to zero, and deadfs vop_unset_text short-circuit the operation. Reclamation of lowervp always reclaims all nullfs vnodes referencing lowervp first, so no stray references are left. Reviewed by: markj, trasz Tested by: mjg, pho Sponsored by: The FreeBSD Foundation MFC after: 1 month Differential revision: https://reviews.freebsd.org/D19923 Notes: svn path=/head/; revision=347151
* sys: further adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-201-0/+2
| | | | | | | | | | | | | | | | | Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point. Notes: svn path=/head/; revision=326023
* Renumber copyright clause 4Warner Losh2017-02-281-1/+1
| | | | | | | | | | | | Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann <jschauma@stevens.edu> Pull Request: https://github.com/freebsd/freebsd/pull/96 Notes: svn path=/head/; revision=314436
* Style changes for deadfs:Konstantin Belousov2014-10-151-54/+10
| | | | | | | | | | | | | - ANSIfy VOPs. - Remove trivial comments. - Remove ARGSUSED. - Remove copies of the vop_XXX_args structure definitions in comments. Sponsored by: The FreeBSD Foundation MFC after: 1 week Notes: svn path=/head/; revision=273132
* When vnode bypass cannot be performed on the cdev file descriptor forKonstantin Belousov2014-10-151-6/+3
| | | | | | | | | | | | | | | | | | read/write/poll/ioctl, call standard vnode filedescriptor fop. This restores the special handling for terminals by calling the deadfs VOP, instead of always returning ENXIO for destroyed devices or revoked terminals. Since destroyed (and not revoked) device would use devfs_specops VOP vector, make dead_read/write/poll non-static and fill VOP table with pointers to the functions, to instead of VOP_PANIC. Noted and reviewed by: bde Sponsored by: The FreeBSD Foundation MFC after: 1 week Notes: svn path=/head/; revision=273131
* Change the deadfs poll VOP to return POLLIN|POLLRDNORM if the callerKonstantin Belousov2014-10-151-6/+9
| | | | | | | | | | | | | is interested in i/o state. Return POLLNVAL for invalid bits, similar to poll_no_poll(). Note that POLLOUT must not be returned, since POLLHUP is set. Noted and reviewed by: bde Sponsored by: The FreeBSD Foundation MFC after: 1 week Notes: svn path=/head/; revision=273130
* The deadfs VOPs for vop_ioctl and vop_bmap call itself recursively,Konstantin Belousov2012-09-131-41/+2
| | | | | | | | | | | | | | | | | | which is an elaborate way to cause kernel panic. Change the VOPs implementation to return EBADF for a reclaimed vnode. While the calls to vop_bmap should not reach deadfs, it is indeed possible for vop_ioctl, because the VOP locking protocol is to pass the vnode to VOP unlocked. The actual panic was observed when ioctl was called on procfs filedescriptor which pointed to an exited process. Reported by: zont Tested by: pho MFC after: 1 week Notes: svn path=/head/; revision=240464
* Add function vop_rename_fail(9) that performs needed cleanup for locksKonstantin Belousov2010-04-021-8/+2
| | | | | | | | | | | and references of the VOP_RENAME(9) arguments. Use vop_rename_fail() in deadfs_rename(). Tested by: Mikolaj Golub MFC after: 1 week Notes: svn path=/head/; revision=206093
* Add a simple VOP_VPTOCNP implementation for deadfs which returns EBADF.Joe Marcus Clarke2008-12-121-0/+1
| | | | | | | | Reviewed by: arch Approved by: kib Notes: svn path=/head/; revision=185958
* Below is slightly edited description of the LOR by Tor Egge:Konstantin Belousov2007-01-221-1/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -------------------------- [Deadlock] is caused by a lock order reversal in vfs_lookup(), where [some] process is trying to lock a directory vnode, that is the parent directory of covered vnode) while holding an exclusive vnode lock on covering vnode. A simplified scenario: root fs var fs / A / (/var) D /var B /log (/var/log) E vfs lock C vfs lock F Within each file system, the lock order is clear: C->A->B and F->D->E When traversing across mounts, the system can choose between two lock orders, but everything must then follow that lock order: L1: C->A->B | +->F->D->E L2: F->D->E | +->C->A->B The lookup() process for namei("/var") mixes those two lock orders: VOP_LOOKUP() obtains B while A is held vfs_busy() obtains a shared lock on F while A and B are held (follows L1, violates L2) vput() releases lock on B VOP_UNLOCK() releases lock on A VFS_ROOT() obtains lock on D while shared lock on F is held vfs_unbusy() releases shared lock on F vn_lock() obtains lock on A while D is held (violates L1, follows L2) dounmount() follows L1 (B is locked while F is drained). Without unmount activity, vfs_busy() will always succeed without blocking and the deadlock isn't triggered (the system behaves as if L2 is followed). With unmount, you can get 4 processes in a deadlock: p1: holds D, want A (in lookup()) p2: holds shared lock on F, want D (in VFS_ROOT()) p3: holds B, want drain lock on F (in dounmount()) p4: holds A, want B (in VOP_LOOKUP()) You can have more than one instance of p2. The reversal was introduced in revision 1.81 of src/sys/kern/vfs_lookup.c and MFCed to revision 1.80.2.1, probably to avoid a cascade of vnode locks when nfs servers are dead (VFS_ROOT() just hangs) spreading to the root fs root vnode. - Tor Egge To fix the LOR, ups@ noted that when crossing the mount point, ni_dvp is actually not used by the callers of namei. Thus, placeholder deadfs vnode vp_crossmp is introduced that is filled into ni_dvp. Idea by: ups Reviewed by: tegge, ups, jeff, rwatson (mac interaction) Tested by: Peter Holm MFC after: 2 weeks Notes: svn path=/head/; revision=166167
* - Deadfs should not use the std GETWRITEMOUNT routine. Add one that alwaysJeff Roberson2006-02-221-0/+14
| | | | | | | | | returns NULL. MFC After: 1 week Notes: svn path=/head/; revision=155896
* - Deadfs may now use the standard vop lock, get rid of dead_lock().Jeff Roberson2005-03-131-40/+0
| | | | | | | | | | - We no longer have to take the XLOCK state into consideration in any routines. Sponsored by: Isilon Systems, Inc. Notes: svn path=/head/; revision=143506
* Introduce vx_wait{l}() and use it instead of home-rolled versions.Poul-Henning Kamp2005-02-171-26/+5
| | | | Notes: svn path=/head/; revision=142011
* Whitespace in vop_vector{} initializations.Poul-Henning Kamp2005-01-131-0/+1
| | | | Notes: svn path=/head/; revision=140196
* Change the generated VOP_ macro implementations to improve type checkingPoul-Henning Kamp2005-01-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | and KASSERT coverage. After this check there is only one "nasty" cast in this code but there is a KASSERT to protect against the wrong argument structure behind that cast. Un-inlining the meat of VOP_FOO() saves 35kB of text segment on a typical kernel with no change in performance. We also now run the checking and tracing on VOP's which have been layered by nullfs, umapfs, deadfs or unionfs. Add new (non-inline) VOP_FOO_AP() functions which take a "struct foo_args" argument and does everything the VOP_FOO() macros used to do with checks and debugging code. Add KASSERT to VOP_FOO_AP() check for argument type being correct. Slim down VOP_FOO() inline functions to just stuff arguments into the struct foo_args and call VOP_FOO_AP(). Put function pointer to VOP_FOO_AP() into vop_foo_desc structure and make VCALL() use it instead of the current offsetoff() hack. Retire vcall() which implemented the offsetoff() Make deadfs and unionfs use VOP_FOO_AP() calls instead of VCALL(), we know which specific call we want already. Remove unneeded arguments to VCALL() in nullfs and umapfs bypass functions. Remove unused vdesc_offset and VOFFSET(). Generally improve style/readability of the generated code. Notes: svn path=/head/; revision=140165
* /* -> /*- for copyright notices, minor format tweaks as necessaryWarner Losh2005-01-061-1/+1
| | | | Notes: svn path=/head/; revision=139776
* Back when VOP_* was introduced, we did not have new-style structPoul-Henning Kamp2004-12-011-33/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | initializations but we did have lofty goals and big ideals. Adjust to more contemporary circumstances and gain type checking. Replace the entire vop_t frobbing thing with properly typed structures. The only casualty is that we can not add a new VOP_ method with a loadable module. History has not given us reason to belive this would ever be feasible in the the first place. Eliminate in toto VOCALL(), vop_t, VNODEOP_SET() etc. Give coda correct prototypes and function definitions for all vop_()s. Generate a bit more data from the vnode_if.src file: a struct vop_vector and protype typedefs for all vop methods. Add a new vop_bypass() and make vop_default be a pointer to another struct vop_vector. Remove a lot of vfs_init since vop_vector is ready to use from the compiler. Cast various vop_mumble() to void * with uppercase name, for instance VOP_PANIC, VOP_NULL etc. Implement VCALL() by making vdesc_offset the offsetof() the relevant function pointer in vop_vector. This is disgusting but since the code is generated by a script comparatively safe. The alternative for nullfs etc. would be much worse. Fix up all vnode method vectors to remove casts so they become typesafe. (The bulk of this is generated by scripts) Notes: svn path=/head/; revision=138290
* Mechanically change prototypes for vnode operations to use the new typedefs.Poul-Henning Kamp2004-12-011-8/+8
| | | | Notes: svn path=/head/; revision=138270
* Make VOP_BMAP return a struct bufobj for the underlying storage devicePoul-Henning Kamp2004-11-151-2/+2
| | | | | | | | | | | | instead of a vnode for it. The vnode_pager does not and should not have any interest in what the filesystem uses for backend. (vfs_cluster doesn't use the backing store argument.) Notes: svn path=/head/; revision=137726
* 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
* Finish cleanup of vprint() which was begun with changing v_tag to a string.Nate Lawson2003-03-031-1/+0
| | | | | | | | | Remove extraneous uses of vop_null, instead defering to the default op. Rename vnode type "vfs" to the more descriptive "syncer". Fix formatting for various filesystems that use vop_print. Notes: svn path=/head/; revision=111841
* Fix comments and one resulting code confusion about the type of thePoul-Henning Kamp2002-10-161-1/+2
| | | | | | | | | "command" argument to VOP_IOCTL. Spotted by: FlexeLint. Notes: svn path=/head/; revision=105212
* Be consistent about "static" functions: if the function is markedPoul-Henning Kamp2002-09-281-1/+1
| | | | | | | | | static in its prototype, mark it static at the definition too. Inspired by: FlexeLint warning #512 Notes: svn path=/head/; revision=104094
* Remove any VOP_PRINT that redundantly prints the tag.Nate Lawson2002-09-181-17/+1
| | | | | | | | | Move lockmgr_printinfo() into vprint() for everyone's benefit. Suggested by: bde Notes: svn path=/head/; revision=103559
* Remove all use of vnode->v_tag, replacing with appropriate substitutes.Nate Lawson2002-09-141-1/+1
| | | | | | | | | | | | | | | v_tag is now const char * and should only be used for debugging. Additionally: 1. All users of VT_NTS now check vfsconf->vf_type VFCF_NETWORK 2. The user of VT_PROCFS now checks for the new flag VV_PROCDEP, which is propagated by pseudofs to all child vnodes if the fs sets PFS_PROCDEP. Suggested by: phk Reviewed by: bde, rwatson (earlier version) Notes: svn path=/head/; revision=103314
* - Replace v_flag with v_iflag and v_vflagJeff Roberson2002-08-041-4/+6
| | | | | | | | | | | | | | | | | | - v_vflag is protected by the vnode lock and is used when synchronization with VOP calls is needed. - v_iflag is protected by interlock and is used for dealing with vnode management issues. These flags include X/O LOCK, FREE, DOOMED, etc. - All accesses to v_iflag and v_vflag have either been locked or marked with mp_fixme's. - Many ASSERT_VOP_LOCKED calls have been added where the locking was not clear. - Many functions in vfs_subr.c were restructured to provide for stronger locking. Idea stolen from: BSD/OS Notes: svn path=/head/; revision=101308
* Use vop_panic() instead of rolling our own.Poul-Henning Kamp2002-05-021-20/+8
| | | | Notes: svn path=/head/; revision=95944
* Remove __P.Alfred Perlstein2002-03-191-11/+11
| | | | Notes: svn path=/head/; revision=92727
* Undo part of the tangle of having sys/lock.h and sys/mutex.h included inMark Murray2001-05-011-3/+2
| | | | | | | | | | | | | | other "system" header files. Also help the deprecation of lockmgr.h by making it a sub-include of sys/lock.h and removing sys/lockmgr.h form kernel .c files. Sort sys/*.h includes where possible in affected files. OK'ed by: bde (with reservations) Notes: svn path=/head/; revision=76166
* Change and clean the mutex lock interface.Bosko Milekic2001-02-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Give vop_mmap an untimely death. The opportunity to give it a timelyEivind Eklund2000-11-011-1/+0
| | | | | | | death timed out in 1996. Notes: svn path=/head/; revision=68186
* Convert lockmgr locks from using simple locks to using mutexes.Jason Evans2000-10-041-1/+3
| | | | | | | | | 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
* Remove unneeded <sys/buf.h> includes.Poul-Henning Kamp2000-04-181-1/+0
| | | | | | | | Due to some interesting cpp tricks in lockmgr, the LINT kernel shrinks by 924 bytes. Notes: svn path=/head/; revision=59368
* $Id$ -> $FreeBSD$Peter Wemm1999-08-281-1/+1
| | | | Notes: svn path=/head/; revision=50477
* Return ENOTTY instead of EBADF for ioctls on dead vnodes. This fixesBruce Evans1998-11-221-2/+2
| | | | | | | | tcsetpgrp() on controlling terminals that are no longer associated with the session of the calling process, not to mention ioctl.2. Notes: svn path=/head/; revision=41287
* Enabled Lite2 fix for reading from dead ttys.Bruce Evans1998-08-231-10/+1
| | | | Notes: svn path=/head/; revision=38489
* Add support for poll(2) on files. vop_nopoll() now returns POLLNVALGarrett Wollman1997-12-151-5/+20
| | | | | | | | | | | | | | | | | | | | | | if one of the new poll types is requested; hopefully this will not break any existing code. (This is done so that programs have a dependable way of determining whether a filesystem supports the extended poll types or not.) The new poll types added are: POLLWRITE - file contents may have been modified POLLNLINK - file was linked, unlinked, or renamed POLLATTRIB - file's attributes may have been changed POLLEXTEND - file was extended Note that the internal operation of poll() means that it is impossible for two processes to reliably poll for the same event (this could be fixed but may not be worth it), so it is not possible to rewrite `tail -f' to use poll at this time. Notes: svn path=/head/; revision=31727
* 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
* VFS interior redecoration.Poul-Henning Kamp1997-10-261-22/+11
| | | | | | | | | | | | | | | | Rename vn_default_error to vop_defaultop all over the place. Move vn_bwrite from vfs_bio.c to vfs_default.c and call it vop_stdbwrite. Use vop_null instead of nullop. Move vop_nopoll from vfs_subr.c to vfs_default.c Move vop_sharedlock from vfs_subr.c to vfs_default.c Move vop_nolock from vfs_subr.c to vfs_default.c Move vop_nounlock from vfs_subr.c to vfs_default.c Move vop_noislocked from vfs_subr.c to vfs_default.c Use vop_ebadf instead of *_ebadf. Add vop_defaultop for getpages on master vnode in MFS. Notes: svn path=/head/; revision=30743
* VFS clean up "hekto commit"Poul-Henning Kamp1997-10-161-3/+1
| | | | | | | | | | | | | 1. Add defaults for more VOPs VOP_LOCK vop_nolock VOP_ISLOCKED vop_noislocked VOP_UNLOCK vop_nounlock and remove direct reference in filesystems. 2. Rename the nfsv2 vnop tables to improve sorting order. Notes: svn path=/head/; revision=30496
* Another VFS cleanup "kilo commit"Poul-Henning Kamp1997-10-161-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. Remove VOP_UPDATE, it is (also) an UFS/{FFS,LFS,EXT2FS,MFS} intereface function, and now lives in the ufsmount structure. 2. Remove VOP_SEEK, it was unused. 3. Add mode default vops: VOP_ADVLOCK vop_einval VOP_CLOSE vop_null VOP_FSYNC vop_null VOP_IOCTL vop_enotty VOP_MMAP vop_einval VOP_OPEN vop_null VOP_PATHCONF vop_einval VOP_READLINK vop_einval VOP_REALLOCBLKS vop_eopnotsupp And remove identical functionality from filesystems 4. Add vop_stdpathconf, which returns the canonical stuff. Use it in the filesystems. (XXX: It's probably wrong that specfs and fifofs sets this vop, shouldn't it come from the "host" filesystem, for instance ufs or cd9660 ?) 5. Try to make system wide VOP functions have vop_* names. 6. Initialize the um_* vectors in LFS. (Recompile your LKMS!!!) Notes: svn path=/head/; revision=30492
* VFS mega cleanup commit (x/N)Poul-Henning Kamp1997-10-161-82/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | 1. Add new file "sys/kern/vfs_default.c" where default actions for VOPs go. Implement proper defaults for ABORTOP, BWRITE, LEASE, POLL, REVOKE and STRATEGY. Various stuff spread over the entire tree belongs here. 2. Change VOP_BLKATOFF to a normal function in cd9660. 3. Kill VOP_BLKATOFF, VOP_TRUNCATE, VOP_VFREE, VOP_VALLOC. These are private interface functions between UFS and the underlying storage manager layer (FFS/LFS/MFS/EXT2FS). The functions now live in struct ufsmount instead. 4. Remove a kludge of VOP_ functions in all filesystems, that did nothing but obscure the simplicity and break the expandability. If a filesystem doesn't implement VOP_FOO, it shouldn't have an entry for it in its vnops table. The system will try to DTRT if it is not implemented. There are still some cruft left, but the bulk of it is done. 5. Fix another VCALL in vfs_cache.c (thanks Bruce!) Notes: svn path=/head/; revision=30474
* Hmm, realign the vnops into two columns.Poul-Henning Kamp1997-10-151-8/+8
| | | | Notes: svn path=/head/; revision=30434
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