Cross Reference: /src/sys/fs/filecorefs

History log of /src/sys/fs/filecorefs
Revision	Date	Author	Comments
1.1	23-Dec-2002	jdolecek	branches: 1.1.2; move filecorefs code from sys/filecorefs to sys/fs/filecorefs
1.1.2.2	29-Dec-2002	thorpej	With with HEAD.
1.1.2.1	23-Dec-2002	thorpej	file Makefile was added on branch nathanw_sa on 2002-12-29 19:55:45 +0000
1.5	25-Dec-2007	perry	Convert many of the uses of __attribute__ to equivalent __packed, __unused and __dead macros from cdefs.h
1.4	03-Dec-2005	christos	branches: 1.4.46; 1.4.52; 1.4.56; 1.4.60; - protect userland exported files against multiple inclusion. - make sure that kernel only files don't compile in userland using #error - XXX: some kernel only files still get installed. - XXX: some files used in userland, don't get installed.
1.3	06-Sep-2003	jdolecek	branches: 1.3.16; sprinkle __attribute__((__packed__)) to structures representing on-disk data this hopefully fixes problem with reading filecore FS under i386, reported on current-users@ (thread 'acorn32 disk on i386')
1.2	07-Aug-2003	agc	Move UCB-licensed code from 4-clause to 3-clause licence. Patches provided by Joel Baker in PR 22364, verified by myself.
1.1	23-Dec-2002	jdolecek	branches: 1.1.2; 1.1.4; move filecorefs code from sys/filecorefs to sys/fs/filecorefs
1.1.4.4	11-Dec-2005	christos	Sync with head.
1.1.4.3	21-Sep-2004	skrll	Fix the sync with head I botched.
1.1.4.2	18-Sep-2004	skrll	Sync with HEAD.
1.1.4.1	03-Aug-2004	skrll	Sync with HEAD
1.1.2.2	29-Dec-2002	thorpej	With with HEAD.
1.1.2.1	23-Dec-2002	thorpej	file filecore.h was added on branch nathanw_sa on 2002-12-29 19:55:46 +0000
1.3.16.2	21-Jan-2008	yamt	sync with head
1.3.16.1	21-Jun-2006	yamt	sync with head.
1.4.60.1	02-Jan-2008	bouyer	Sync with HEAD
1.4.56.1	26-Dec-2007	ad	Sync with head.
1.4.52.1	18-Feb-2008	mjf	Sync with HEAD.
1.4.46.1	09-Jan-2008	matt	sync with HEAD
1.11	28-Mar-2015	maxv	Remove the 'cred' argument from bread(). Remove a now unused var in ffs_snapshot.c. Update the man page accordingly. ok hannken@
1.10	20-Dec-2012	hannken	branches: 1.10.14; Change bread() and breadn() to never return a buffer on error and modify all callers to not brelse() on error. Welcome to 6.99.16 PR kern/46282 (6.0_BETA crash: msdosfs_bmap -> pcbmap -> bread -> bio_doread)
1.9	14-Mar-2009	dsl	branches: 1.9.12; 1.9.22; Change about 4500 of the K&R function definitions to ANSI ones. There are still about 1600 left, but they have ',' or /* ... */ in the actual variable definitions - which my awk script doesn't handle. There are also many that need () -> (void). (The script does handle misordered arguments.)
1.8	16-May-2008	hannken	branches: 1.8.6; 1.8.12; Make sure all cached buffers with valid, not yet written data have been run through copy-on-write. Call fscow_run() with valid data where possible. The LP_UFSCOW hack is no longer needed to protect ffs_copyonwrite() against endless recursion. - Add a flag B_MODIFY to bread(), breada() and breadn(). If set the caller intends to modify the buffer returned. - Always run copy-on-write on buffers returned from ffs_balloc(). - Add new function ffs_getblk() that gets a buffer, assigns a new blkno, may clear the buffer and runs copy-on-write. Process possible errors from getblk() or fscow_run(). Part of PR kern/38664. Welcome to 4.99.63 Reviewed by: YAMAMOTO Takashi <yamt@netbsd.org>
1.7	30-Apr-2008	ad	branches: 1.7.2; Make various bits of debug code compile again.
1.6	08-Oct-2007	ad	branches: 1.6.18; 1.6.20; 1.6.22; Merge brelse() changes from the vmlocking branch.
1.5	15-May-2006	christos	branches: 1.5.18; 1.5.32; 1.5.34; 1.5.36; More kauth fallout.
1.4	14-May-2006	elad	integrate kauth.
1.3	11-Dec-2005	christos	branches: 1.3.4; 1.3.6; 1.3.8; 1.3.10; 1.3.12; merge ktrace-lwp.
1.2	07-Aug-2003	agc	branches: 1.2.16; Move UCB-licensed code from 4-clause to 3-clause licence. Patches provided by Joel Baker in PR 22364, verified by myself.
1.1	23-Dec-2002	jdolecek	branches: 1.1.2; 1.1.4; move filecorefs code from sys/filecorefs to sys/fs/filecorefs
1.1.4.3	21-Sep-2004	skrll	Fix the sync with head I botched.
1.1.4.2	18-Sep-2004	skrll	Sync with HEAD.
1.1.4.1	03-Aug-2004	skrll	Sync with HEAD
1.1.2.2	29-Dec-2002	thorpej	With with HEAD.
1.1.2.1	23-Dec-2002	thorpej	file filecore_bmap.c was added on branch nathanw_sa on 2002-12-29 19:55:47 +0000
1.2.16.2	27-Oct-2007	yamt	sync with head.
1.2.16.1	21-Jun-2006	yamt	sync with head.
1.3.12.1	24-May-2006	tron	Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.
1.3.10.1	08-Mar-2006	elad	Adapt to kernel authorization KPI.
1.3.8.1	24-May-2006	yamt	sync with head.
1.3.6.1	01-Jun-2006	kardel	Sync with head.
1.3.4.1	09-Sep-2006	rpaulo	sync with head
1.5.36.1	14-Oct-2007	yamt	sync with head.
1.5.34.1	06-Nov-2007	matt	sync with HEAD
1.5.32.1	26-Oct-2007	joerg	Sync with HEAD. Follow the merge of pmap.c on i386 and amd64 and move pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup code to restore CR4 before jumping back into kernel space as the large page option might cover that.
1.5.18.1	20-Aug-2007	ad	Sync with HEAD.
1.6.22.2	04-May-2009	yamt	sync with head.
1.6.22.1	16-May-2008	yamt	sync with head.
1.6.20.1	18-May-2008	yamt	sync with head.
1.6.18.1	02-Jun-2008	mjf	Sync with HEAD.
1.7.2.1	23-Jun-2008	wrstuden	Sync w/ -current. 34 merge conflicts to follow.
1.8.12.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.8.6.1	28-Apr-2009	skrll	Sync with HEAD.
1.9.22.2	03-Dec-2017	jdolecek	update from HEAD
1.9.22.1	25-Feb-2013	tls	resync with head
1.9.12.1	23-Jan-2013	yamt	sync with head
1.10.14.1	06-Apr-2015	skrll	Sync with HEAD
1.22	23-Jun-2013	dholland	Stick ffs_, ext2_, chfs_, filecore_, cd9660_, or mfs_ in front of the following symbols so as to disambiguate fully. (Christos already did the lfs ones.) lblkno lblktosize lfragtosize numfrags blkroundup fragroundup
1.21	19-Jun-2013	dholland	blkoff() -> filecore_blkoff() blksize() -> filecore_blksize()
1.20	23-May-2011	rmind	branches: 1.20.4; 1.20.14; Convert some simple_lock(9) uses to mutex(9) and malloc(9) to kmem(9).
1.19	14-Mar-2009	dsl	branches: 1.19.4; 1.19.6; Remove all the __P() from sys (excluding sys/dist) Diff checked with grep and MK1 eyeball. i386 and amd64 GENERIC and sys still build.
1.18	28-Jun-2008	rumble	branches: 1.18.4; 1.18.10; Create sysctl entries during module initialisation and destroy them appropriately. Many of these file systems are now ready for modularisation.
1.17	24-Sep-2007	rumble	branches: 1.17.18; 1.17.22; 1.17.24; 1.17.26; Avoid stack allocation of large dirent structures in foo_readdir().
1.16	31-Jul-2007	pooka	branches: 1.16.2; 1.16.4; 1.16.6; 1.16.8; * nuke the nameidata parameter from VFS_MOUNT(). Nobody on tech-kern knew what it was supposed to be used for and wrstuden gave a go-ahead * while rototilling, convert file systems which went easily to use VFS_PROTOS() instead of manually prototyping the methods
1.15	12-Jul-2007	dsl	branches: 1.15.2; Change the VFS_MOUNT() interface so that the 'data' buffer passed to the fs code is a kernel buffer, pass though the length of the buffer as well. Since the length of the userspace buffer isn'it (yet) passed through the mount system call, add a field to the vfsops structure containing the default length. Split sys_mount() for calls from compat code. Ride one of the recent kernel version changes - old fs LKMs will load, but sys_mount() will reject any attempt to use them.
1.14	13-Jul-2006	martin	branches: 1.14.14; Fix alignement problems for fhandle_t, exposed by gcc4.1. While touching all vptofh/fhtovp functions, get rid of VFS_MAXFIDSIZ, version the getfh(2) syscall and explicitly pass the size available in the filehandle from userland. Discussed on tech-kern, with lots of help from yamt (thanks!).
1.13	14-May-2006	elad	branches: 1.13.4; integrate kauth.
1.12	11-Dec-2005	christos	branches: 1.12.4; 1.12.6; 1.12.8; 1.12.10; 1.12.12; merge ktrace-lwp.
1.11	03-Dec-2005	christos	- protect userland exported files against multiple inclusion. - make sure that kernel only files don't compile in userland using #error - XXX: some kernel only files still get installed. - XXX: some files used in userland, don't get installed.
1.10	23-Sep-2005	jmmv	Apply the NFS exports list rototill patch: - Remove all NFS related stuff from file system specific code. - Drop the vfs_checkexp hook and generalize it in the new nfs_check_export function, thus removing redundancy from all file systems. - Move all NFS export-related stuff from kern/vfs_subr.c to the new file sys/nfs/nfs_export.c. The former was becoming large and its code is always compiled, regardless of the build options. Using the latter, the code is only compiled in when NFSSERVER is enabled. While doing this, also make some functions in nfs_subs.c conditional to NFSSERVER. - Add a new command in nfssvc(2), called NFSSVC_SETEXPORTSLIST, that takes a path and a set of export entries. At the moment it can only clear the exports list or append entries, one by one, but it is done in a way that allows setting the whole set of entries atomically in the future (see the comment in mountd_set_exports_list or in doc/TODO). - Change mountd(8) to use the nfssvc(2) system call instead of mount(2) so that it becomes file system agnostic. In fact, all this whole thing was done to remove a 'XXX' block from this utility! - Change the mount, newfs and fsck userland utilities to not deal with NFS exports initialization; done internally by the kernel when initializing the NFS support for each file system. - Implement an interface for VFS (called VFS hooks) so that several kernel subsystems can run arbitrary code upon receipt of specific VFS events. At the moment, this only provides support for unmount and is used to destroy NFS exports lists from the file systems being unmounted, though it has room for extension. Thanks go to yamt@, chs@, thorpej@, wrstuden@ and others for their comments and advice in the development of this patch.
1.9	20-May-2004	atatat	branches: 1.9.12; 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).
1.8	27-Apr-2004	jrf	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.
1.7	21-Apr-2004	christos	Replace the statfs() family of system calls with statvfs(). Retain binary compatibility.
1.6	04-Dec-2003	atatat	branches: 1.6.2; 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.
1.5	07-Aug-2003	agc	Move UCB-licensed code from 4-clause to 3-clause licence. Patches provided by Joel Baker in PR 22364, verified by myself.
1.4	29-Jun-2003	fvdl	branches: 1.4.2; Back out the lwp/ktrace changes. They contained a lot of colateral damage, and need to be examined and discussed more.
1.3	28-Jun-2003	darrenr	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
1.2	01-Feb-2003	thorpej	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.
1.1	23-Dec-2002	jdolecek	branches: 1.1.2; move filecorefs code from sys/filecorefs to sys/fs/filecorefs
1.1.2.2	29-Dec-2002	thorpej	With with HEAD.
1.1.2.1	23-Dec-2002	thorpej	file filecore_extern.h was added on branch nathanw_sa on 2002-12-29 19:55:48 +0000
1.4.2.9	11-Dec-2005	christos	Sync with head.
1.4.2.8	10-Nov-2005	skrll	Sync with HEAD. Here we go again...
1.4.2.7	21-Sep-2004	skrll	Fix the sync with head I botched.
1.4.2.6	18-Sep-2004	skrll	Sync with HEAD.
1.4.2.5	26-Aug-2004	skrll	Missed these in the vget, etc changes.
1.4.2.4	24-Aug-2004	skrll	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.
1.4.2.3	03-Aug-2004	skrll	Sync with HEAD
1.4.2.2	03-Jul-2003	wrstuden	LWP-ify filecore fs. Note: These changes suffer from the same cnp->cn_lwp issue noted for ufs. They will need to get fixed at the same time as ufs. The fix is to add struct lwp * as a parameter to some VOPs. Also, some how or another, this code missed out on the changes to use genfs_lease_check, and had a dangling reference to lease_check(). Given that genfs_lease_check has been around since 1998, I'm puzzled as to what's been going on. Noticed in a compild of acorn32/GENERIC.
1.4.2.1	02-Jul-2003	darrenr	Apply the aborted ktrace-lwp changes to a specific branch. This is just for others to review, I'm concerned that patch fuziness may have resulted in some errant code being generated but I'll look at that later by comparing the diff from the base to the branch with the file I attempt to apply to it. This will, at the very least, put the changes in a better context for others to review them and attempt to tinker with removing passing of 'struct lwp' through the kernel.
1.6.2.1	23-May-2004	tron	Pull up revision 1.9 (requested by atatat in ticket #374): 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).
1.9.12.4	27-Oct-2007	yamt	sync with head.
1.9.12.3	03-Sep-2007	yamt	sync with head.
1.9.12.2	30-Dec-2006	yamt	sync with head.
1.9.12.1	21-Jun-2006	yamt	sync with head.
1.12.12.1	24-May-2006	tron	Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.
1.12.10.2	06-May-2006	christos	- Move kauth_cred_t declaration to <sys/types.h> - Cleanup struct ucred; forward declarations that are unused. - Don't include <sys/kauth.h> in any header, but include it in the c files that need it. Approved by core.
1.12.10.1	08-Mar-2006	elad	Adapt to kernel authorization KPI.
1.12.8.2	11-Aug-2006	yamt	sync with head
1.12.8.1	24-May-2006	yamt	sync with head.
1.12.6.1	01-Jun-2006	kardel	Sync with head.
1.12.4.1	09-Sep-2006	rpaulo	sync with head
1.13.4.1	13-Jul-2006	gdamore	Merge from HEAD.
1.14.14.3	09-Oct-2007	ad	Sync with head.
1.14.14.2	20-Aug-2007	ad	Sync with HEAD.
1.14.14.1	15-Jul-2007	ad	Sync with head.
1.15.2.1	15-Aug-2007	skrll	Sync with HEAD.
1.16.8.2	31-Jul-2007	pooka	* nuke the nameidata parameter from VFS_MOUNT(). Nobody on tech-kern knew what it was supposed to be used for and wrstuden gave a go-ahead * while rototilling, convert file systems which went easily to use VFS_PROTOS() instead of manually prototyping the methods
1.16.8.1	31-Jul-2007	pooka	file filecore_extern.h was added on branch matt-mips64 on 2007-07-31 21:14:18 +0000
1.16.6.1	06-Oct-2007	yamt	sync with head.
1.16.4.1	06-Nov-2007	matt	sync with HEAD
1.16.2.1	02-Oct-2007	joerg	Sync with HEAD.
1.17.26.1	03-Jul-2008	simonb	Sync with head.
1.17.24.1	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.17.22.1	04-May-2009	yamt	sync with head.
1.17.18.1	29-Jun-2008	mjf	Sync with HEAD.
1.18.10.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.18.4.1	28-Apr-2009	skrll	Sync with HEAD.
1.19.6.1	06-Jun-2011	jruoho	Sync with HEAD.
1.19.4.1	31-May-2011	rmind	sync with head
1.20.14.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.20.14.1	23-Jun-2013	tls	resync from head
1.20.4.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.23	08-Sep-2024	rillig	fix a/an grammar in obvious cases
1.22	06-Aug-2022	andvar	branches: 1.22.10; s/blity/bility/ in various words, mainly in comments.
1.21	04-Oct-2014	hannken	Change filecore to vcache. Compile-tested only, was not able to get my hands on a readable fs image.
1.20	03-Jun-2014	joerg	Introduce two helper functions to centralise the namecache statistics in vfs_cache.c. Use consistent locking around the per-cpu data.
1.19	07-Feb-2014	hannken	branches: 1.19.2; Change vnode operation lookup to return the resulting vnode *vpp unlocked. Change cache_lookup() to return an unlocked vnode. Discussed on tech-kern@ Welcome to 6.99.31
1.18	20-Oct-2013	christos	remove unused
1.17	20-Dec-2012	hannken	branches: 1.17.2; Change bread() and breadn() to never return a buffer on error and modify all callers to not brelse() on error. Welcome to 6.99.16 PR kern/46282 (6.0_BETA crash: msdosfs_bmap -> pcbmap -> bread -> bio_doread)
1.16	05-Nov-2012	dholland	Excise struct componentname from the namecache. This uglifies the interface, because several operations need to be passed the namei flags and cache_lookup also needs for the time being to be passed cnp->cn_nameiop. Nonetheless, it's a net benefit. The glop should be able to go away eventually but requires structural cleanup elsewhere first. This change requires a kernel bump.
1.15	05-Nov-2012	dholland	Disentangle the namecache from the internals of namei. - Move the namecache's hash computation to inside the namecache code, instead of being spread out all over the place. Remove cn_hash from struct componentname and delete all uses of it. - It is no longer necessary (if it ever was) for cache_lookup and cache_lookup_raw to clear MAKEENTRY from cnp->cn_flags for the cases that cache_enter already checks for. - Rearrange the interface of cache_lookup (and cache_lookup_raw) to make it somewhat simpler, to exclude certain nonexistent error conditions, and (most importantly) to make it not require write access to cnp->cn_flags. This change requires a kernel bump.
1.14	22-Jul-2012	rmind	branches: 1.14.2; Move some the test for MAKEENTRY into the cache_enter(9). Make some variables in vfs_cache.c static, __read_mostly, etc. No objection on tech-kern@.
1.13	24-Jun-2010	hannken	branches: 1.13.8; 1.13.14; Clean up vnode lock operations pass 2: VOP_UNLOCK(vp, flags) -> VOP_UNLOCK(vp): Remove the unneeded flags argument. Welcome to 5.99.32. Discussed on tech-kern.
1.12	08-Jan-2010	pooka	branches: 1.12.2; 1.12.4; The VATTR_NULL/VREF/VHOLD/HOLDRELE() macros lost their will to live years ago when the kernel was modified to not alter ABI based on DIAGNOSTIC, and now just call the respective function interfaces (in lowercase). Plenty of mix'n match upper/lowercase has creeped into the tree since then. Nuke the macros and convert all callsites to lowercase. no functional change
1.11	14-Mar-2009	dsl	ANSIfy another 1261 function definitions. The only ones left in sys are beyond by sed script! (or in sys/dist or sys/external) Mostly they have function pointer parameters.
1.10	26-Nov-2007	pooka	branches: 1.10.18; 1.10.26; 1.10.32; Remove the "struct lwp *" argument from all VFS and VOP interfaces. The general trend is to remove it from all kernel interfaces and this is a start. In case the calling lwp is desired, curlwp should be used. quick consensus on tech-kern
1.9	08-Oct-2007	ad	branches: 1.9.4; Merge brelse() changes from the vmlocking branch.
1.8	09-Dec-2006	chs	branches: 1.8.6; 1.8.18; 1.8.20; 1.8.22; a smorgasbord of improvements to vnode locking and path lookup: - LOCKPARENT is no longer relevant for lookup(), relookup() or VOP_LOOKUP(). these now always return the parent vnode locked. namei() works as before. lookup() and various other paths no longer acquire vnode locks in the wrong order via vrele(). fixes PR 32535. as a nice side effect, path lookup is also up to 25% faster. - the above allows us to get rid of PDIRUNLOCK. - also get rid of WANTPARENT (just use LOCKPARENT and unlock it). - remove an assumption in layer_node_find() that all file systems implement a recursive VOP_LOCK() (unionfs doesn't). - require that all file systems supply vfs_vptofh and vfs_fhtovp routines. fill in eopnotsupp() for file systems that don't support being exported and remove the checks for NULL. (layerfs calls these without checking.) - in union_lookup1(), don't change refcounts in the ISDOTDOT case, just adjust which vnode is locked. fixes PR 33374. - apply fixes for ufs_rename() from ufs_vnops.c rev. 1.61 to ext2fs_rename().
1.7	14-May-2006	elad	branches: 1.7.8; 1.7.10; 1.7.12; integrate kauth.
1.6	11-Dec-2005	christos	branches: 1.6.4; 1.6.6; 1.6.8; 1.6.10; 1.6.12; merge ktrace-lwp.
1.5	26-Feb-2005	perry	branches: 1.5.4; nuke trailing whitespace
1.4	07-Aug-2003	agc	branches: 1.4.8; 1.4.10; Move UCB-licensed code from 4-clause to 3-clause licence. Patches provided by Joel Baker in PR 22364, verified by myself.
1.3	29-Jun-2003	fvdl	branches: 1.3.2; Back out the lwp/ktrace changes. They contained a lot of colateral damage, and need to be examined and discussed more.
1.2	28-Jun-2003	darrenr	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
1.1	23-Dec-2002	jdolecek	branches: 1.1.2; move filecorefs code from sys/filecorefs to sys/fs/filecorefs
1.1.2.2	29-Dec-2002	thorpej	With with HEAD.
1.1.2.1	23-Dec-2002	thorpej	file filecore_lookup.c was added on branch nathanw_sa on 2002-12-29 19:55:48 +0000
1.3.2.7	04-Mar-2005	skrll	Sync with HEAD. Hi Perry!
1.3.2.6	21-Sep-2004	skrll	Fix the sync with head I botched.
1.3.2.5	18-Sep-2004	skrll	Sync with HEAD.
1.3.2.4	24-Aug-2004	skrll	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.
1.3.2.3	03-Aug-2004	skrll	Sync with HEAD
1.3.2.2	03-Jul-2003	wrstuden	LWP-ify filecore fs. Note: These changes suffer from the same cnp->cn_lwp issue noted for ufs. They will need to get fixed at the same time as ufs. The fix is to add struct lwp * as a parameter to some VOPs. Also, some how or another, this code missed out on the changes to use genfs_lease_check, and had a dangling reference to lease_check(). Given that genfs_lease_check has been around since 1998, I'm puzzled as to what's been going on. Noticed in a compild of acorn32/GENERIC.
1.3.2.1	02-Jul-2003	darrenr	Apply the aborted ktrace-lwp changes to a specific branch. This is just for others to review, I'm concerned that patch fuziness may have resulted in some errant code being generated but I'll look at that later by comparing the diff from the base to the branch with the file I attempt to apply to it. This will, at the very least, put the changes in a better context for others to review them and attempt to tinker with removing passing of 'struct lwp' through the kernel.
1.4.10.1	19-Mar-2005	yamt	sync with head. xen and whitespace. xen part is not finished.
1.4.8.1	29-Apr-2005	kent	sync with -current
1.5.4.4	07-Dec-2007	yamt	sync with head
1.5.4.3	27-Oct-2007	yamt	sync with head.
1.5.4.2	30-Dec-2006	yamt	sync with head.
1.5.4.1	21-Jun-2006	yamt	sync with head.
1.6.12.1	24-May-2006	tron	Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.
1.6.10.1	08-Mar-2006	elad	Adapt to kernel authorization KPI.
1.6.8.1	24-May-2006	yamt	sync with head.
1.6.6.1	01-Jun-2006	kardel	Sync with head.
1.6.4.1	09-Sep-2006	rpaulo	sync with head
1.7.12.1	17-Feb-2007	tron	Apply patch (requested by chs in ticket #422): - Fix various deadlock problems with nullfs and unionfs. - Speed up path lookups by upto 25%.
1.7.10.1	10-Dec-2006	yamt	sync with head.
1.7.8.1	12-Jan-2007	ad	Sync with head.
1.8.22.1	14-Oct-2007	yamt	sync with head.
1.8.20.2	09-Jan-2008	matt	sync with HEAD
1.8.20.1	06-Nov-2007	matt	sync with HEAD
1.8.18.2	27-Nov-2007	joerg	Sync with HEAD. amd64 Xen support needs testing.
1.8.18.1	26-Oct-2007	joerg	Sync with HEAD. Follow the merge of pmap.c on i386 and amd64 and move pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup code to restore CR4 before jumping back into kernel space as the large page option might cover that.
1.8.6.1	20-Aug-2007	ad	Sync with HEAD.
1.9.4.1	08-Dec-2007	mjf	Sync with HEAD.
1.10.32.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.10.26.1	28-Apr-2009	skrll	Sync with HEAD.
1.10.18.3	11-Aug-2010	yamt	sync with head.
1.10.18.2	11-Mar-2010	yamt	sync with head
1.10.18.1	04-May-2009	yamt	sync with head.
1.12.4.1	03-Jul-2010	rmind	sync with head
1.12.2.1	17-Aug-2010	uebayasi	Sync with HEAD.
1.13.14.1	12-Aug-2012	martin	Pull up following revision(s) (requested by manu in ticket #484): sys/fs/nilfs/nilfs_vnops.c: revision 1.18 sys/ufs/ufs/ufs_lookup.c: revision 1.117 sys/nfs/nfs_vnops.c: revision 1.295 sys/ufs/chfs/chfs_vnops.c: revision 1.8 sys/ufs/ext2fs/ext2fs_lookup.c: revision 1.70 sys/fs/unionfs/unionfs_vnops.c: revision 1.6 sys/kern/vfs_cache.c: revision 1.89 sys/fs/efs/efs_vnops.c: revision 1.26 sys/fs/hfs/hfs_vnops.c: revision 1.26 sys/fs/adosfs/adlookup.c: revision 1.16 sys/fs/puffs/puffs_vnops.c: revision 1.168 sys/fs/tmpfs/tmpfs_vnops.c: revision 1.98 sys/fs/ntfs/ntfs_vnops.c: revision 1.52 sys/fs/cd9660/cd9660_lookup.c: revision 1.20 sys/fs/msdosfs/msdosfs_lookup.c: revision 1.24 sys/fs/smbfs/smbfs_vnops.c: revision 1.80 sys/fs/udf/udf_vnops.c: revision 1.72 sys/fs/filecorefs/filecore_lookup.c: revision 1.14 sys/fs/puffs/puffs_node.c: revision 1.25 Move some the test for MAKEENTRY into the cache_enter(9). Make some variables in vfs_cache.c static, __read_mostly, etc. No objection on tech-kern@.
1.13.8.4	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.13.8.3	23-Jan-2013	yamt	sync with head
1.13.8.2	16-Jan-2013	yamt	sync with (a bit old) head
1.13.8.1	30-Oct-2012	yamt	sync with head
1.14.2.4	03-Dec-2017	jdolecek	update from HEAD
1.14.2.3	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.14.2.2	25-Feb-2013	tls	resync with head
1.14.2.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.17.2.1	18-May-2014	rmind	sync with head
1.19.2.1	10-Aug-2014	tls	Rebase.
1.22.10.1	02-Aug-2025	perseant	Sync with HEAD
1.6	03-Dec-2005	christos	- protect userland exported files against multiple inclusion. - make sure that kernel only files don't compile in userland using #error - XXX: some kernel only files still get installed. - XXX: some files used in userland, don't get installed.
1.5	25-Sep-2005	jmmv	Follow compat naming tradition: rename compat_export_args to export_args30.
1.4	23-Sep-2005	jmmv	Apply the NFS exports list rototill patch: - Remove all NFS related stuff from file system specific code. - Drop the vfs_checkexp hook and generalize it in the new nfs_check_export function, thus removing redundancy from all file systems. - Move all NFS export-related stuff from kern/vfs_subr.c to the new file sys/nfs/nfs_export.c. The former was becoming large and its code is always compiled, regardless of the build options. Using the latter, the code is only compiled in when NFSSERVER is enabled. While doing this, also make some functions in nfs_subs.c conditional to NFSSERVER. - Add a new command in nfssvc(2), called NFSSVC_SETEXPORTSLIST, that takes a path and a set of export entries. At the moment it can only clear the exports list or append entries, one by one, but it is done in a way that allows setting the whole set of entries atomically in the future (see the comment in mountd_set_exports_list or in doc/TODO). - Change mountd(8) to use the nfssvc(2) system call instead of mount(2) so that it becomes file system agnostic. In fact, all this whole thing was done to remove a 'XXX' block from this utility! - Change the mount, newfs and fsck userland utilities to not deal with NFS exports initialization; done internally by the kernel when initializing the NFS support for each file system. - Implement an interface for VFS (called VFS hooks) so that several kernel subsystems can run arbitrary code upon receipt of specific VFS events. At the moment, this only provides support for unmount and is used to destroy NFS exports lists from the file systems being unmounted, though it has room for extension. Thanks go to yamt@, chs@, thorpej@, wrstuden@ and others for their comments and advice in the development of this patch.
1.3	03-Oct-2003	yamt	branches: 1.3.16; terminate snprintb 'new' format strings correctly. (fixes overrun in mount_*)
1.2	07-Aug-2003	agc	Move UCB-licensed code from 4-clause to 3-clause licence. Patches provided by Joel Baker in PR 22364, verified by myself.
1.1	23-Dec-2002	jdolecek	branches: 1.1.2; 1.1.4; move filecorefs code from sys/filecorefs to sys/fs/filecorefs
1.1.4.5	11-Dec-2005	christos	Sync with head.
1.1.4.4	10-Nov-2005	skrll	Sync with HEAD. Here we go again...
1.1.4.3	21-Sep-2004	skrll	Fix the sync with head I botched.
1.1.4.2	18-Sep-2004	skrll	Sync with HEAD.
1.1.4.1	03-Aug-2004	skrll	Sync with HEAD
1.1.2.2	29-Dec-2002	thorpej	With with HEAD.
1.1.2.1	23-Dec-2002	thorpej	file filecore_mount.h was added on branch nathanw_sa on 2002-12-29 19:55:50 +0000
1.3.16.1	21-Jun-2006	yamt	sync with head.
1.31	26-May-2017	riastradh	Eliminate crusty debugging sludge. We have a mostly sane vnode lifecycle now. If this needs debugging, it should be done once at the call site of VOP_RECLAIM.
1.30	26-May-2017	riastradh	Make VOP_RECLAIM do the last unlock of the vnode. VOP_RECLAIM naturally has exclusive access to the vnode, so having it locked on entry is not strictly necessary -- but it means if there are any final operations that must be done on the vnode, such as ffs_update, requiring exclusive access to it, we can now kassert that the vnode is locked in those operations. We can't just have the caller release the last lock because some file systems don't use genfs_lock, and require the vnode to remain valid for VOP_UNLOCK to work, notably unionfs.
1.29	11-Apr-2017	riastradh	Make VOP_INACTIVE preserve vnode lock on return. Discussed on tech-kern: https://mail-index.netbsd.org/tech-kern/2017/04/01/msg021751.html Ride 7.99.68, a bumpy bus of incremental vfs improvements!
1.28	20-Aug-2016	hannken	branches: 1.28.2; Remove now obsolete operation vcache_remove(). Welcome to 7.99.36
1.27	04-Oct-2014	hannken	branches: 1.27.2; 1.27.4; Change filecore to vcache. Compile-tested only, was not able to get my hands on a readable fs image.
1.26	27-Feb-2014	hannken	The current implementation of vn_lock() is racy. Modification of the vnode operations vector for active vnodes is unsafe because it is not known whether deadfs or the original file system will be called. - Pass down LK_RETRY to the lock operation (hint for deadfs only). - Change deadfs lock operation to return ENOENT if LK_RETRY is unset. - Change all other lock operations to check for dead vnode once the vnode is locked and unlock and return ENOENT in this case. With these changes in place vnode lock operations will never succeed after vclean() has marked the vnode as VI_XLOCK and before vclean() has changed the operations vector. Adresses PR kern/37706 (Forced unmount of file systems is unsafe) Discussed on tech-kern. Welcome to 6.99.33
1.25	12-Jun-2011	rmind	branches: 1.25.2; 1.25.12; 1.25.16; Welcome to 5.99.53! Merge rmind-uvmplock branch: - Reorganize locking in UVM and provide extra serialisation for pmap(9). New lock order: [vmpage-owner-lock] -> pmap-lock. - Simplify locking in some pmap(9) modules by removing P->V locking. - Use lock object on vmobjlock (and thus vnode_t::v_interlock) to share the locks amongst UVM objects where necessary (tmpfs, layerfs, unionfs). - Rewrite and optimise x86 TLB shootdown code, make it simpler and cleaner. Add TLBSTATS option for x86 to collect statistics about TLB shootdowns. - Unify /dev/mem et al in MI code and provide required locking (removes kernel-lock on some ports). Also, avoid cache-aliasing issues. Thanks to Andrew Doran and Joerg Sonnenberger, as their initial patches formed the core changes of this branch.
1.24	23-May-2011	rmind	branches: 1.24.2; Convert some simple_lock(9) uses to mutex(9) and malloc(9) to kmem(9).
1.23	19-May-2011	rmind	Remove cache_purge(9) calls from reclamation routines in the file systems, as vclean(9) performs it for us since Lite2 merge.
1.22	21-Jul-2010	hannken	branches: 1.22.2; Make holding v_interlock mandatory for callers of vget(). Announced some time ago on tech-kern.
1.21	01-Jul-2010	hannken	Remove vlockmgr(). Generic vnode lock operations now use a rwlock located in the vnode. All LK_* flags move from sys/lock.h to sys/vnode.h. Calls to vlockmgr() in file systems get replaced with VOP_LOCK() or VOP_UNLOCK(). Welcome to 5.99.34. Discussed on tech-kern.
1.20	24-Jun-2010	hannken	Clean up vnode lock operations pass 2: VOP_UNLOCK(vp, flags) -> VOP_UNLOCK(vp): Remove the unneeded flags argument. Welcome to 5.99.32. Discussed on tech-kern.
1.19	15-Mar-2009	cegger	branches: 1.19.2; 1.19.4; ansify function definitions
1.18	14-Mar-2009	dsl	Change about 4500 of the K&R function definitions to ANSI ones. There are still about 1600 left, but they have ',' or /* ... */ in the actual variable definitions - which my awk script doesn't handle. There are also many that need () -> (void). (The script does handle misordered arguments.)
1.17	05-May-2008	ad	branches: 1.17.8; 1.17.14; - Convert hashinit() to use kmem_alloc(). The hash tables can be large and it's better to not have them in kmem_map. - Convert a couple of minor items along the way to kmem_alloc(). - Fix some memory leaks.
1.16	30-Jan-2008	ad	branches: 1.16.6; 1.16.8; 1.16.10; Replace struct lock on vnodes with a simpler lock object built on krwlock_t. This is a step towards removing lockmgr and simplifying vnode locking. Discussed on tech-kern.
1.15	17-Jan-2008	ad	Fix dodgy tests of v_usecount.
1.14	04-Jan-2008	ad	Start detangling lock.h from intr.h. This is likely to cause short term breakage, but the mess of dependencies has been regularly breaking the build recently anyhow.
1.13	02-Jan-2008	ad	Merge vmlocking2 to head.
1.12	26-Nov-2007	pooka	branches: 1.12.2; 1.12.6; Remove the "struct lwp *" argument from all VFS and VOP interfaces. The general trend is to remove it from all kernel interfaces and this is a start. In case the calling lwp is desired, curlwp should be used. quick consensus on tech-kern
1.11	24-Sep-2007	rumble	branches: 1.11.4; Avoid stack allocation of large dirent structures in foo_readdir().
1.10	30-Jun-2007	pooka	branches: 1.10.6; 1.10.8; 1.10.10; Using POOL_INIT here makes no sense, since file systems always have an init method. So get rid of it and #ifdef _LKM and just always init in the init method. Give malloc types the same treatment. Makes file systems nicer to work with in linksetless environments and fixes a few LKM discrepancies.
1.9	13-Mar-2007	ad	Pass an ipl argument to pool_init/POOL_INIT to be used when initializing the pool's lock.
1.8	20-Feb-2007	ad	branches: 1.8.4; 1.8.6; Call genfs_node_destroy() where appropriate.
1.7	11-Dec-2005	christos	branches: 1.7.26; merge ktrace-lwp.
1.6	26-Feb-2005	perry	branches: 1.6.4; nuke trailing whitespace
1.5	20-May-2004	atatat	branches: 1.5.4; 1.5.6; Explicitly call pool_init() (and pool_destroy()) when being built as an _LKM. This adds pools to the list of things that lkms must do manually because they're set up with link sets. Not that there's anything wrong with link sets, but that we need to try harder to remember that lkms are second class citizens. Of a sort.
1.4	25-Apr-2004	simonb	Initialise (most) pools from a link set instead of explicit calls to pool_init. Untouched pools are ones that either in arch-specific code, or aren't initialiased during initial system startup. Convert struct session, ucred and lockf to pools.
1.3	27-Mar-2004	atatat	Manually attach malloc types when being built as an lkm.
1.2	07-Aug-2003	agc	Move UCB-licensed code from 4-clause to 3-clause licence. Patches provided by Joel Baker in PR 22364, verified by myself.
1.1	23-Dec-2002	jdolecek	branches: 1.1.2; 1.1.4; move filecorefs code from sys/filecorefs to sys/fs/filecorefs
1.1.4.7	04-Mar-2005	skrll	Sync with HEAD. Hi Perry!
1.1.4.6	27-Oct-2004	skrll	Fix various comments that describe the argument structures
1.1.4.5	21-Sep-2004	skrll	Fix the sync with head I botched.
1.1.4.4	18-Sep-2004	skrll	Sync with HEAD.
1.1.4.3	24-Aug-2004	skrll	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.
1.1.4.2	03-Aug-2004	skrll	Sync with HEAD
1.1.4.1	03-Jul-2003	wrstuden	LWP-ify filecore fs. Note: These changes suffer from the same cnp->cn_lwp issue noted for ufs. They will need to get fixed at the same time as ufs. The fix is to add struct lwp * as a parameter to some VOPs. Also, some how or another, this code missed out on the changes to use genfs_lease_check, and had a dangling reference to lease_check(). Given that genfs_lease_check has been around since 1998, I'm puzzled as to what's been going on. Noticed in a compild of acorn32/GENERIC.
1.1.2.2	29-Dec-2002	thorpej	With with HEAD.
1.1.2.1	23-Dec-2002	thorpej	file filecore_node.c was added on branch nathanw_sa on 2002-12-29 19:55:51 +0000
1.5.6.1	19-Mar-2005	yamt	sync with head. xen and whitespace. xen part is not finished.
1.5.4.1	29-Apr-2005	kent	sync with -current
1.6.4.7	04-Feb-2008	yamt	sync with head.
1.6.4.6	21-Jan-2008	yamt	sync with head
1.6.4.5	07-Dec-2007	yamt	sync with head
1.6.4.4	27-Oct-2007	yamt	sync with head.
1.6.4.3	03-Sep-2007	yamt	sync with head.
1.6.4.2	26-Feb-2007	yamt	sync with head.
1.6.4.1	21-Jun-2006	yamt	sync with head.
1.7.26.2	24-Mar-2007	yamt	sync with head.
1.7.26.1	27-Feb-2007	yamt	- sync with head. - move sched_changepri back to kern_synch.c as it doesn't know PPQ anymore.
1.8.6.1	11-Jul-2007	mjf	Sync with head.
1.8.4.5	09-Oct-2007	ad	Sync with head.
1.8.4.4	16-Sep-2007	ad	Checkpoint work in progress on the vnode lifecycle and reference counting stuff. This makes it work properly without kernel_lock and fixes a few quite old bugs. See vfs_subr.c 1.283.2.17 for details.
1.8.4.3	20-Aug-2007	ad	Sync with HEAD.
1.8.4.2	15-Jul-2007	ad	Sync with head.
1.8.4.1	13-Mar-2007	ad	Sync with head.
1.10.10.1	06-Oct-2007	yamt	sync with head.
1.10.8.3	23-Mar-2008	matt	sync with HEAD
1.10.8.2	09-Jan-2008	matt	sync with HEAD
1.10.8.1	06-Nov-2007	matt	sync with HEAD
1.10.6.2	27-Nov-2007	joerg	Sync with HEAD. amd64 Xen support needs testing.
1.10.6.1	02-Oct-2007	joerg	Sync with HEAD.
1.11.4.2	18-Feb-2008	mjf	Sync with HEAD.
1.11.4.1	08-Dec-2007	mjf	Sync with HEAD.
1.12.6.3	19-Jan-2008	bouyer	Sync with HEAD
1.12.6.2	08-Jan-2008	bouyer	Sync with HEAD
1.12.6.1	02-Jan-2008	bouyer	Sync with HEAD
1.12.2.1	04-Dec-2007	ad	Pull the vmlocking changes into a new branch.
1.16.10.3	11-Aug-2010	yamt	sync with head.
1.16.10.2	04-May-2009	yamt	sync with head.
1.16.10.1	16-May-2008	yamt	sync with head.
1.16.8.1	18-May-2008	yamt	sync with head.
1.16.6.1	02-Jun-2008	mjf	Sync with HEAD.
1.17.14.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.17.8.1	28-Apr-2009	skrll	Sync with HEAD.
1.19.4.4	31-May-2011	rmind	sync with head
1.19.4.3	05-Mar-2011	rmind	sync with head
1.19.4.2	03-Jul-2010	rmind	sync with head
1.19.4.1	16-Mar-2010	rmind	Change struct uvm_object::vmobjlock to be dynamically allocated with mutex_obj_alloc(). It allows us to share the locks among UVM objects.
1.19.2.1	17-Aug-2010	uebayasi	Sync with HEAD.
1.22.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.24.2.1	23-Jun-2011	cherry	Catchup with rmind-uvmplock merge.
1.25.16.1	18-May-2014	rmind	sync with head
1.25.12.2	03-Dec-2017	jdolecek	update from HEAD
1.25.12.1	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.25.2.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.27.4.1	26-Apr-2017	pgoyette	Sync with HEAD
1.27.2.2	28-Aug-2017	skrll	Sync with HEAD
1.27.2.1	05-Oct-2016	skrll	Sync with HEAD
1.28.2.1	21-Apr-2017	bouyer	Sync with HEAD
1.8	27-Mar-2022	christos	dedup the eofs link/symlink methods
1.7	18-Jul-2021	dholland	Abolish all the silly indirection macros for initializing vnode ops tables. These are things of the form #define foofs_op genfs_op, or #define foofs_op genfs_eopnotsupp, or similar. They serve no purpose besides obfuscation, and have gotten cutpasted all over everywhere.
1.6	04-Oct-2014	hannken	branches: 1.6.36; Change filecore to vcache. Compile-tested only, was not able to get my hands on a readable fs image.
1.5	14-Mar-2009	dsl	branches: 1.5.22; Remove all the __P() from sys (excluding sys/dist) Diff checked with grep and MK1 eyeball. i386 and amd64 GENERIC and sys still build.
1.4	03-Dec-2005	christos	branches: 1.4.74; 1.4.84; 1.4.90; - protect userland exported files against multiple inclusion. - make sure that kernel only files don't compile in userland using #error - XXX: some kernel only files still get installed. - XXX: some files used in userland, don't get installed.
1.3	19-Aug-2005	christos	namlen is u_int16_t now.
1.2	07-Aug-2003	agc	branches: 1.2.16; Move UCB-licensed code from 4-clause to 3-clause licence. Patches provided by Joel Baker in PR 22364, verified by myself.
1.1	23-Dec-2002	jdolecek	branches: 1.1.2; 1.1.4; move filecorefs code from sys/filecorefs to sys/fs/filecorefs
1.1.4.7	11-Dec-2005	christos	Sync with head.
1.1.4.6	10-Nov-2005	skrll	Sync with HEAD. Here we go again...
1.1.4.5	21-Sep-2004	skrll	Fix the sync with head I botched.
1.1.4.4	18-Sep-2004	skrll	Sync with HEAD.
1.1.4.3	24-Aug-2004	skrll	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.
1.1.4.2	03-Aug-2004	skrll	Sync with HEAD
1.1.4.1	03-Jul-2003	wrstuden	LWP-ify filecore fs. Note: These changes suffer from the same cnp->cn_lwp issue noted for ufs. They will need to get fixed at the same time as ufs. The fix is to add struct lwp * as a parameter to some VOPs. Also, some how or another, this code missed out on the changes to use genfs_lease_check, and had a dangling reference to lease_check(). Given that genfs_lease_check has been around since 1998, I'm puzzled as to what's been going on. Noticed in a compild of acorn32/GENERIC.
1.1.2.2	29-Dec-2002	thorpej	With with HEAD.
1.1.2.1	23-Dec-2002	thorpej	file filecore_node.h was added on branch nathanw_sa on 2002-12-29 19:55:52 +0000
1.2.16.1	21-Jun-2006	yamt	sync with head.
1.4.90.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.4.84.1	28-Apr-2009	skrll	Sync with HEAD.
1.4.74.1	04-May-2009	yamt	sync with head.
1.5.22.1	03-Dec-2017	jdolecek	update from HEAD
1.6.36.1	01-Aug-2021	thorpej	Sync with HEAD.
1.12	29-Sep-2020	msaitoh	s/occurence/occurrence/
1.11	20-Dec-2012	hannken	Change bread() and breadn() to never return a buffer on error and modify all callers to not brelse() on error. Welcome to 6.99.16 PR kern/46282 (6.0_BETA crash: msdosfs_bmap -> pcbmap -> bread -> bio_doread)
1.10	14-Mar-2009	dsl	branches: 1.10.12; 1.10.22; Change about 4500 of the K&R function definitions to ANSI ones. There are still about 1600 left, but they have ',' or /* ... */ in the actual variable definitions - which my awk script doesn't handle. There are also many that need () -> (void). (The script does handle misordered arguments.)
1.9	30-Apr-2008	ad	branches: 1.9.8; 1.9.14; Make various bits of debug code compile again.
1.8	08-Oct-2007	ad	branches: 1.8.18; 1.8.20; 1.8.22; Merge brelse() changes from the vmlocking branch.
1.7	15-May-2006	christos	branches: 1.7.18; 1.7.32; 1.7.34; 1.7.36; More kauth fallout.
1.6	11-Dec-2005	christos	branches: 1.6.4; 1.6.6; 1.6.8; 1.6.12; merge ktrace-lwp.
1.5	19-Aug-2005	christos	namlen is u_int16_t now.
1.4	17-May-2005	christos	branches: 1.4.2; Yes, it was a cool trick >20 years ago to use "0123456789abcdef"[a] to implement, xtoa(), but I think defining the samestring 50 times is a bit too much. Defined HEXDIGITS and hexdigits in subr_prf.c and use it...
1.3	26-Feb-2005	perry	nuke trailing whitespace
1.2	07-Aug-2003	agc	branches: 1.2.8; 1.2.10; Move UCB-licensed code from 4-clause to 3-clause licence. Patches provided by Joel Baker in PR 22364, verified by myself.
1.1	23-Dec-2002	jdolecek	branches: 1.1.2; 1.1.4; move filecorefs code from sys/filecorefs to sys/fs/filecorefs
1.1.4.5	10-Nov-2005	skrll	Sync with HEAD. Here we go again...
1.1.4.4	04-Mar-2005	skrll	Sync with HEAD. Hi Perry!
1.1.4.3	21-Sep-2004	skrll	Fix the sync with head I botched.
1.1.4.2	18-Sep-2004	skrll	Sync with HEAD.
1.1.4.1	03-Aug-2004	skrll	Sync with HEAD
1.1.2.2	29-Dec-2002	thorpej	With with HEAD.
1.1.2.1	23-Dec-2002	thorpej	file filecore_utils.c was added on branch nathanw_sa on 2002-12-29 19:55:52 +0000
1.2.10.1	19-Mar-2005	yamt	sync with head. xen and whitespace. xen part is not finished.
1.2.8.1	29-Apr-2005	kent	sync with -current
1.4.2.2	27-Oct-2007	yamt	sync with head.
1.4.2.1	21-Jun-2006	yamt	sync with head.
1.6.12.1	24-May-2006	tron	Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.
1.6.8.1	24-May-2006	yamt	sync with head.
1.6.6.1	01-Jun-2006	kardel	Sync with head.
1.6.4.1	09-Sep-2006	rpaulo	sync with head
1.7.36.1	14-Oct-2007	yamt	sync with head.
1.7.34.1	06-Nov-2007	matt	sync with HEAD
1.7.32.1	26-Oct-2007	joerg	Sync with HEAD. Follow the merge of pmap.c on i386 and amd64 and move pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup code to restore CR4 before jumping back into kernel space as the large page option might cover that.
1.7.18.1	20-Aug-2007	ad	Sync with HEAD.
1.8.22.2	04-May-2009	yamt	sync with head.
1.8.22.1	16-May-2008	yamt	sync with head.
1.8.20.1	18-May-2008	yamt	sync with head.
1.8.18.1	02-Jun-2008	mjf	Sync with HEAD.
1.9.14.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.9.8.1	28-Apr-2009	skrll	Sync with HEAD.
1.10.22.1	25-Feb-2013	tls	resync with head
1.10.12.1	23-Jan-2013	yamt	sync with head
1.83	16-Mar-2020	pgoyette	Use the module subsystem's ability to process SYSCTL_SETUP() entries to automate installation of sysctl nodes. Note that there are still a number of device and pseudo-device modules that create entries tied to individual device units, rather than to the module itself. These are not changed.
1.82	17-Jan-2020	ad	VFS_VGET(), VFS_ROOT(), VFS_FHTOVP(): give them a "int lktype" argument, to allow us to get shared locks (or no lock) on the returned vnode. Matches FreeBSD.
1.81	17-Apr-2017	hannken	branches: 1.81.2; 1.81.12; 1.81.18; Remove unused argument "nextp" from vfs_busy() and vfs_unbusy(). Remove argument "keepref" from vfs_unbusy() and add vfs_ref() where needed.
1.80	17-Apr-2017	hannken	Add vfs_ref(mp) and vfs_rele(mp) to add or remove a reference to struct mount. Rename vfs_destroy(mp) to vfs_rele(mp) and replace incrementing mp->mnt_refcnt with vfs_ref(mp).
1.79	17-Feb-2017	hannken	Add generic genfs_suspendctl() and use it for all file systems. Layered file systems need work.
1.78	28-Mar-2015	maxv	branches: 1.78.2; 1.78.4; Remove the 'cred' argument from bread(). Remove a now unused var in ffs_snapshot.c. Update the man page accordingly. ok hannken@
1.77	04-Oct-2014	hannken	branches: 1.77.2; Change filecore to vcache. Compile-tested only, was not able to get my hands on a readable fs image.
1.76	16-Apr-2014	maxv	An (un)privileged user can easily make the kernel dereference a NULL pointer. The kernel allows 'data' to be NULL; it's the fs's responsibility to ensure that it isn't NULL (if the fs actually needs data). ok christos@
1.75	23-Mar-2014	hannken	branches: 1.75.2; Change all vfsops to use C99 designated initializers. No functional changes intended.
1.74	25-Feb-2014	pooka	Ensure that the top level sysctl nodes (kern, vfs, net, ...) exist before the sysctl link sets are processed, and remove redundancy. Shaves >13kB off of an amd64 GENERIC, not to mention >1k duplicate lines of code.
1.73	25-Dec-2013	mlelstv	At least fetch the mount data pointer before using it. Coverity CID 274525
1.72	23-Nov-2013	christos	change the mountlist CIRCLEQ into a TAILQ
1.71	30-Sep-2013	hannken	Replace macro v_specmountpoint with two functions spec_node_getmountedfs() and spec_node_setmountedfs() to manage the file system mounted on a device. Assert the device is a block device. Welcome to 6.99.24 Discussed on tech-kern@ some time ago. Reviewed by: David Holland <dholland@netbsd.org>
1.70	20-Dec-2012	hannken	branches: 1.70.2; Change bread() and breadn() to never return a buffer on error and modify all callers to not brelse() on error. Welcome to 6.99.16 PR kern/46282 (6.0_BETA crash: msdosfs_bmap -> pcbmap -> bread -> bio_doread)
1.69	13-Mar-2012	elad	branches: 1.69.2; Replace the remaining KAUTH_GENERIC_ISSUSER authorization calls with something meaningful. All relevant documentation has been updated or written. Most of these changes were brought up in the following messages: http://mail-index.netbsd.org/tech-kern/2012/01/18/msg012490.html http://mail-index.netbsd.org/tech-kern/2012/01/19/msg012502.html http://mail-index.netbsd.org/tech-kern/2012/02/17/msg012728.html Thanks to christos, manu, njoly, and jmmv for input. Huge thanks to pgoyette for spinning these changes through some build cycles and ATF.
1.68	14-Nov-2011	hannken	branches: 1.68.4; 1.68.6; 1.68.10; 1.68.12; VOP_OPEN() needs a locked vnode. All these copy-and-pasted xxxfs_mount() implementations need more review.
1.67	12-Jun-2011	rmind	branches: 1.67.2; Welcome to 5.99.53! Merge rmind-uvmplock branch: - Reorganize locking in UVM and provide extra serialisation for pmap(9). New lock order: [vmpage-owner-lock] -> pmap-lock. - Simplify locking in some pmap(9) modules by removing P->V locking. - Use lock object on vmobjlock (and thus vnode_t::v_interlock) to share the locks amongst UVM objects where necessary (tmpfs, layerfs, unionfs). - Rewrite and optimise x86 TLB shootdown code, make it simpler and cleaner. Add TLBSTATS option for x86 to collect statistics about TLB shootdowns. - Unify /dev/mem et al in MI code and provide required locking (removes kernel-lock on some ports). Also, avoid cache-aliasing issues. Thanks to Andrew Doran and Joerg Sonnenberger, as their initial patches formed the core changes of this branch.
1.66	09-Jun-2011	rmind	Remove few references to simple_lock.
1.65	23-May-2011	rmind	branches: 1.65.2; Convert some simple_lock(9) uses to mutex(9) and malloc(9) to kmem(9).
1.64	24-Jun-2010	hannken	branches: 1.64.2; Clean up vnode lock operations pass 2: VOP_UNLOCK(vp, flags) -> VOP_UNLOCK(vp): Remove the unneeded flags argument. Welcome to 5.99.32. Discussed on tech-kern.
1.63	11-Apr-2010	mlelstv	The *_modcmd functions use the module name as prefix.
1.62	11-Apr-2010	pooka	Make module name match MOUNT_NAME. Inspired by PR kern/43110.
1.61	08-Jan-2010	pooka	branches: 1.61.2; 1.61.4; The VATTR_NULL/VREF/VHOLD/HOLDRELE() macros lost their will to live years ago when the kernel was modified to not alter ABI based on DIAGNOSTIC, and now just call the respective function interfaces (in lowercase). Plenty of mix'n match upper/lowercase has creeped into the tree since then. Nuke the macros and convert all callsites to lowercase. no functional change
1.60	29-Jun-2009	dholland	Convert 67 namei call sites to use namei_simple, in these functions: check_console, veriexecclose, veriexec_delete, veriexec_file_add, emul_find_root, coff_load_shlib (sh3 version), coff_load_shlib, compat_20_sys_statfs, compat_20_netbsd32_statfs, ELFNAME2(netbsd32,probe_noteless), darwin_sys_statfs, ibcs2_sys_statfs, ibcs2_sys_statvfs, linux_sys_uselib, osf1_sys_statfs, sunos_sys_statfs, sunos32_sys_statfs, ultrix_sys_statfs, do_sys_mount, fss_create_files (3 of 4), adosfs_mount, cd9660_mount, coda_ioctl, coda_mount, ext2fs_mount, ffs_mount, filecore_mount, hfs_mount, lfs_mount, msdosfs_mount, ntfs_mount, sysvbfs_mount, udf_mount, union_mount, sys_chflags, sys_lchflags, sys_chmod, sys_lchmod, sys_chown, sys_lchown, sys___posix_chown, sys___posix_lchown, sys_link, do_sys_pstatvfs, sys_quotactl, sys_revoke, sys_truncate, do_sys_utimes, sys_extattrctl, sys_extattr_set_file, sys_extattr_set_link, sys_extattr_get_file, sys_extattr_get_link, sys_extattr_delete_file, sys_extattr_delete_link, sys_extattr_list_file, sys_extattr_list_link, sys_setxattr, sys_lsetxattr, sys_getxattr, sys_lgetxattr, sys_listxattr, sys_llistxattr, sys_removexattr, sys_lremovexattr All have been scrutinized (several times, in fact) and compile-tested, but not all have been explicitly tested in action. XXX: While I haven't (intentionally) changed the use or nonuse of XXX: TRYEMULROOT in any of these places, I'm not convinced all the XXX: uses are correct; an audit might be desirable.
1.59	25-Apr-2009	elad	Add genfs_can_mount() and use it to prevent some more code duplication of the security checks when mounting a device (VOP_ACCESS() + kauth(9) call)). Proposed with no objections on tech-kern@: http://mail-index.netbsd.org/tech-kern/2009/04/20/msg004859.html The vnode is always expected to be locked, so no locking is done outside the file-system code.
1.58	18-Mar-2009	cegger	Ansify function definitions w/o arguments. Generated with sed.
1.57	14-Mar-2009	dsl	Change about 4500 of the K&R function definitions to ANSI ones. There are still about 1600 left, but they have ',' or /* ... */ in the actual variable definitions - which my awk script doesn't handle. There are also many that need () -> (void). (The script does handle misordered arguments.)
1.56	14-Mar-2009	dsl	Remove all the __P() from sys (excluding sys/dist) Diff checked with grep and MK1 eyeball. i386 and amd64 GENERIC and sys still build.
1.55	28-Jun-2008	rumble	branches: 1.55.4; 1.55.6; 1.55.10; 1.55.16; 1.55.20; Create sysctl entries during module initialisation and destroy them appropriately. Many of these file systems are now ready for modularisation.
1.54	16-May-2008	hannken	branches: 1.54.2; Make sure all cached buffers with valid, not yet written data have been run through copy-on-write. Call fscow_run() with valid data where possible. The LP_UFSCOW hack is no longer needed to protect ffs_copyonwrite() against endless recursion. - Add a flag B_MODIFY to bread(), breada() and breadn(). If set the caller intends to modify the buffer returned. - Always run copy-on-write on buffers returned from ffs_balloc(). - Add new function ffs_getblk() that gets a buffer, assigns a new blkno, may clear the buffer and runs copy-on-write. Process possible errors from getblk() or fscow_run(). Part of PR kern/38664. Welcome to 4.99.63 Reviewed by: YAMAMOTO Takashi <yamt@netbsd.org>
1.53	10-May-2008	rumble	Convert file systems to dynamically attach with the new module interface. Make VFS hooks dynamic while we're here and say farewell to VFS_ATTACH and VFS_HOOKS_ATTACH linksets. As a consequence, most of the file systems can now be loaded as new style modules. Quick sanity check by ad@.
1.52	06-May-2008	ad	branches: 1.52.2; PR kern/38141 lookup/vfs_busy acquire rwlock recursively Simplify the mount locking. Remove all the crud to deal with recursion on the mount lock, and crud to deal with unmount as another weirdo lock. Hopefully this will once and for all fix the deadlocks with this. With this commit there are two locks on each mount: - krwlock_t mnt_unmounting. This is used to prevent unmount across critical sections like getnewvnode(). It's only ever read locked with rw_tryenter(), and is only ever write locked in dounmount(). A write hold can't be taken on this lock if the current LWP could hold a vnode lock. - kmutex_t mnt_updating. This is taken by threads updating the mount, for example when going r/o -> r/w, and is only present to serialize updates. In order to take this lock, a read hold must first be taken on mnt_unmounting, and the two need to be held across the operation. One effect of this change: previously if an unmount failed, we would make a half hearted attempt to back out of it gracefully, but that was unlikely to work in a lot of cases. Now while an unmount that will be aborted is in progress, new file operations within the mount will fail instead of being delayed. That is unlikely to be a problem though, because if the admin requests unmount of a file system then s(he) has made a decision to deny access to the resource.
1.51	30-Apr-2008	ad	PR kern/38135 vfs_busy/vfs_trybusy confusion The previous fix worked, but it opened a window where mounts could have disappeared from mountlist while the caller was traversing it using vfs_trybusy(). Fix that.
1.50	29-Apr-2008	ad	PR kern/38057 ffs makes assuptions about devvp file system PR kern/33406 softdeps get stuck in endless loop Introduce VFS_FSYNC() and call it when syncing a block device, if it has a mounted file system.
1.49	05-Feb-2008	ad	branches: 1.49.6; 1.49.8; 1.49.10; Do genfs_node_init() earlier. PR kern/36162.
1.48	30-Jan-2008	ad	PR kern/37706 (forced unmount of file systems is unsafe): - Do reference counting for 'struct mount'. Each vnode associated with a mount takes a reference, and in turn the mount takes a reference to the vfsops. - Now that mounts are reference counted, replace the overcomplicated mount locking inherited from 4.4BSD with a recursable rwlock.
1.47	28-Jan-2008	dholland	Fix some race conditions in rename. Introduce a per-FS rename lock and new vfsops to manipulate it. Get this lock while renaming. Also add another relookup() in do_sys_rename, which is a hack to kludge around some of the worst deficiencies of ufs_rename. reviewed-by: pooka (and an earlier rev by ad) posted on tech-kern with no objections.
1.46	24-Jan-2008	ad	specfs changes for PR kern/37717 (raidclose() is no longer called on shutdown). There are still problems with device access and a PR will be filed. - Kill checkalias(). Allow multiple vnodes to reference a single device. - Don't play dangerous tricks with block vnodes to ensure that only one vnode can describe a block device. Instead, prohibit concurrent opens of block devices. As a bonus remove the unreliable code that prevents multiple file system mounts on the same device. It's no longer needed. - Track opens by vnode and by device. Issue cdev_close() when the last open goes away, instead of abusing vnode::v_usecount to tell if the device is open.
1.45	08-Dec-2007	pooka	Remove cn_lwp from struct componentname. curlwp should be used from on. The NDINIT() macro no longer takes the lwp parameter and associates the credentials of the calling thread with the namei structure.
1.44	26-Nov-2007	pooka	branches: 1.44.2; Remove the "struct lwp *" argument from all VFS and VOP interfaces. The general trend is to remove it from all kernel interfaces and this is a start. In case the calling lwp is desired, curlwp should be used. quick consensus on tech-kern
1.43	10-Oct-2007	ad	branches: 1.43.4; Merge from vmlocking: - Split vnode::v_flag into three fields, depending on field locking. - simple_lock -> kmutex in a few places. - Fix some simple locking problems.
1.42	08-Oct-2007	ad	Merge brelse() changes from the vmlocking branch.
1.41	24-Sep-2007	rumble	Avoid stack allocation of large dirent structures in foo_readdir().
1.40	31-Jul-2007	pooka	branches: 1.40.2; 1.40.4; 1.40.6; 1.40.8; * nuke the nameidata parameter from VFS_MOUNT(). Nobody on tech-kern knew what it was supposed to be used for and wrstuden gave a go-ahead * while rototilling, convert file systems which went easily to use VFS_PROTOS() instead of manually prototyping the methods
1.39	26-Jul-2007	pooka	Use eopnotsupp() instead of vfs_stdsuspendctl() and retire the latter.
1.38	23-Jul-2007	pooka	Initialize size and/or writesize when creating a vnode.
1.37	17-Jul-2007	pooka	branches: 1.37.2; Make set_statvfs_info() take a parameter for the vfs name instead of always retrieving it from mp->mnt_op->vfs_name christos ok
1.36	12-Jul-2007	dsl	Change the VFS_MOUNT() interface so that the 'data' buffer passed to the fs code is a kernel buffer, pass though the length of the buffer as well. Since the length of the userspace buffer isn'it (yet) passed through the mount system call, add a field to the vfsops structure containing the default length. Split sys_mount() for calls from compat code. Ride one of the recent kernel version changes - old fs LKMs will load, but sys_mount() will reject any attempt to use them.
1.35	09-Jul-2007	pooka	mntflushbuf() cargo cult comment mania cleanup. there is no mntflushbuf().
1.34	30-Jun-2007	pooka	Using POOL_INIT here makes no sense, since file systems always have an init method. So get rid of it and #ifdef _LKM and just always init in the init method. Give malloc types the same treatment. Makes file systems nicer to work with in linksetless environments and fixes a few LKM discrepancies.
1.33	04-Apr-2007	rmind	filecore_mountfs: Remove the dead code - fcmp cannot be non-zero here. CID: 714
1.32	04-Mar-2007	jnemeth	branches: 1.32.2; 1.32.4; more caddr_t -> void * fallout
1.31	19-Jan-2007	hannken	branches: 1.31.2; New file system suspension API to replace vn_start_write and vn_finished_write. The suspension helpers are now put into file system specific operations. This means every file system not supporting these helpers cannot be suspended and therefore snapshots are no longer possible. Implemented for file systems of type ffs. The new API is enabled on a kernel option NEWVNGATE. This option is not enabled by default in any kernel config. Presented and discussed on tech-kern with much input from Bill Studenmund <wrstuden@netbsd.org> and YAMAMOTO Takashi <yamt@netbsd.org>. Welcome to 4.99.9 (new vfs op vfs_suspendctl).
1.30	04-Jan-2007	elad	Consistent usage of KAUTH_GENERIC_ISSUSER.
1.29	09-Dec-2006	chs	a smorgasbord of improvements to vnode locking and path lookup: - LOCKPARENT is no longer relevant for lookup(), relookup() or VOP_LOOKUP(). these now always return the parent vnode locked. namei() works as before. lookup() and various other paths no longer acquire vnode locks in the wrong order via vrele(). fixes PR 32535. as a nice side effect, path lookup is also up to 25% faster. - the above allows us to get rid of PDIRUNLOCK. - also get rid of WANTPARENT (just use LOCKPARENT and unlock it). - remove an assumption in layer_node_find() that all file systems implement a recursive VOP_LOCK() (unionfs doesn't). - require that all file systems supply vfs_vptofh and vfs_fhtovp routines. fill in eopnotsupp() for file systems that don't support being exported and remove the checks for NULL. (layerfs calls these without checking.) - in union_lookup1(), don't change refcounts in the ISDOTDOT case, just adjust which vnode is locked. fixes PR 33374. - apply fixes for ufs_rename() from ufs_vnops.c rev. 1.61 to ext2fs_rename().
1.28	29-Sep-2006	christos	branches: 1.28.2; Coverity CID 2435: Add KASSERT before NULL deref (from Arnaud Lacombe)
1.27	23-Jul-2006	ad	branches: 1.27.4; 1.27.6; Use the LWP cached credentials where sane.
1.26	13-Jul-2006	martin	Fix alignement problems for fhandle_t, exposed by gcc4.1. While touching all vptofh/fhtovp functions, get rid of VFS_MAXFIDSIZ, version the getfh(2) syscall and explicitly pass the size available in the filehandle from userland. Discussed on tech-kern, with lots of help from yamt (thanks!).
1.25	15-May-2006	christos	branches: 1.25.4; More kauth fallout.
1.24	14-May-2006	elad	integrate kauth.
1.23	21-Feb-2006	thorpej	branches: 1.23.2; 1.23.4; 1.23.6; Use device_class() instead of accessing dv_class directly.
1.22	11-Dec-2005	christos	branches: 1.22.2; 1.22.4; 1.22.6; merge ktrace-lwp.
1.21	23-Sep-2005	jmmv	Apply the NFS exports list rototill patch: - Remove all NFS related stuff from file system specific code. - Drop the vfs_checkexp hook and generalize it in the new nfs_check_export function, thus removing redundancy from all file systems. - Move all NFS export-related stuff from kern/vfs_subr.c to the new file sys/nfs/nfs_export.c. The former was becoming large and its code is always compiled, regardless of the build options. Using the latter, the code is only compiled in when NFSSERVER is enabled. While doing this, also make some functions in nfs_subs.c conditional to NFSSERVER. - Add a new command in nfssvc(2), called NFSSVC_SETEXPORTSLIST, that takes a path and a set of export entries. At the moment it can only clear the exports list or append entries, one by one, but it is done in a way that allows setting the whole set of entries atomically in the future (see the comment in mountd_set_exports_list or in doc/TODO). - Change mountd(8) to use the nfssvc(2) system call instead of mount(2) so that it becomes file system agnostic. In fact, all this whole thing was done to remove a 'XXX' block from this utility! - Change the mount, newfs and fsck userland utilities to not deal with NFS exports initialization; done internally by the kernel when initializing the NFS support for each file system. - Implement an interface for VFS (called VFS hooks) so that several kernel subsystems can run arbitrary code upon receipt of specific VFS events. At the moment, this only provides support for unmount and is used to destroy NFS exports lists from the file systems being unmounted, though it has room for extension. Thanks go to yamt@, chs@, thorpej@, wrstuden@ and others for their comments and advice in the development of this patch.
1.20	28-Jun-2005	yamt	branches: 1.20.2; - constify genfs_ops. - use member designators.
1.19	29-Mar-2005	thorpej	- Define a VFS_ATTACH() macro that places a reference to a vfsops structure into the "vfsops" link set. - Use VFS_ATTACH() where vfsops are declared for individual file systems. - In vfsinit(), traverse the "vfsops" link set, rather than vfs_list_initial[].
1.18	26-Feb-2005	perry	branches: 1.18.2; nuke trailing whitespace
1.17	02-Jan-2005	thorpej	branches: 1.17.2; 1.17.4; Add the system call and VFS infrastructure for file system extended attributes. From FreeBSD.
1.16	13-Sep-2004	jdolecek	set mp->mnt_stat.f_namemax on filesystem mount for use by statvfs, and use the value for also pathconf(_PC_NAME_MAX) to keep the two in sync
1.15	15-Aug-2004	mycroft	Fixing age old cruft: * Rather than using mnt_maxsymlinklen to indicate that a file systems returns d_type fields(!), add a new internal flag, IMNT_DTYPE. Add 3 new elements to ufsmount: * um_maxsymlinklen, replaces mnt_maxsymlinklen (which never should have existed in the first place). * um_dirblksiz, which tracks the current directory block size, eliminating the FS-specific checks littered throughout the code. This may be used later to make the block size variable. * um_maxfilesize, which is the maximum file size, possibly adjusted lower due to implementation issues. Sync some bug fixes from FFS into ext2fs, particularly: * ffs_lookup.c 1.21, 1.28, 1.33, 1.48 * ffs_inode.c 1.43, 1.44, 1.45, 1.66, 1.67 * ffs_vnops.c 1.84, 1.85, 1.86 Clean up some crappy pointer frobnication.
1.14	25-May-2004	hannken	Add ffs internal snapshots. Written by Marshall Kirk McKusick for FreeBSD. - Not enabled by default. Needs kernel option FFS_SNAPSHOT. - Change parameters of ffs_blkfree. - Let the copy-on-write functions return an error so spec_strategy may fail if the copy-on-write fails. - Change genfs_lock() to use vp->v_vnlock instead of &vp->v_lock. - Add flag B_METAONLY to VOP_BALLOC to return indirect block buffer. - Add a function ffs_checkfreefile needed for snapshot creation. - Add special handling of snapshot files: Snapshots may not be opened for writing and the attributes are read-only. Use the mtime as the time this snapshot was taken. Deny mtime updates for snapshot files. - Add function transferlockers to transfer any waiting processes from one lock to another. - Add vfsop VFS_SNAPSHOT to take a snapshot and make it accessible through a vnode. - Add snapshot support to ls, fsck_ffs and dump. Welcome to 2.0F. Approved by: Jason R. Thorpe <thorpej@netbsd.org>
1.13	25-May-2004	atatat	Sysctl descriptions under vfs subtree
1.12	04-May-2004	jrf	Remove caddr_t inlines. Approved by christos@NetBSD.org.
1.11	27-Apr-2004	jrf	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.
1.10	21-Apr-2004	christos	Replace the statfs() family of system calls with statvfs(). Retain binary compatibility.
1.9	24-Mar-2004	atatat	branches: 1.9.2; Tango on sysctl_createv() and flags. The flags have all been renamed, and sysctl_createv() now uses more arguments.
1.8	05-Dec-2003	bjh21	Include <sys/sysctl.h> for sysctl stuff. Also, create the vfs.filecore subtree, rather than vfs.union.
1.7	04-Dec-2003	atatat	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.
1.6	07-Aug-2003	agc	Move UCB-licensed code from 4-clause to 3-clause licence. Patches provided by Joel Baker in PR 22364, verified by myself.
1.5	29-Jun-2003	fvdl	branches: 1.5.2; Back out the lwp/ktrace changes. They contained a lot of colateral damage, and need to be examined and discussed more.
1.4	28-Jun-2003	darrenr	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
1.3	16-Apr-2003	christos	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.
1.2	01-Feb-2003	thorpej	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.
1.1	23-Dec-2002	jdolecek	branches: 1.1.2; move filecorefs code from sys/filecorefs to sys/fs/filecorefs
1.1.2.2	29-Dec-2002	thorpej	With with HEAD.
1.1.2.1	23-Dec-2002	thorpej	file filecore_vfsops.c was added on branch nathanw_sa on 2002-12-29 19:55:53 +0000
1.5.2.12	10-Nov-2005	skrll	Sync with HEAD. Here we go again...
1.5.2.11	01-Apr-2005	skrll	Sync with HEAD.
1.5.2.10	04-Mar-2005	skrll	Sync with HEAD. Hi Perry!
1.5.2.9	17-Jan-2005	skrll	Sync with HEAD.
1.5.2.8	21-Sep-2004	skrll	Fix the sync with head I botched.
1.5.2.7	18-Sep-2004	skrll	Sync with HEAD.
1.5.2.6	26-Aug-2004	skrll	Missed these in the vget, etc changes.
1.5.2.5	25-Aug-2004	skrll	Sync with HEAD.
1.5.2.4	24-Aug-2004	skrll	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.
1.5.2.3	03-Aug-2004	skrll	Sync with HEAD
1.5.2.2	03-Jul-2003	wrstuden	LWP-ify filecore fs. Note: These changes suffer from the same cnp->cn_lwp issue noted for ufs. They will need to get fixed at the same time as ufs. The fix is to add struct lwp * as a parameter to some VOPs. Also, some how or another, this code missed out on the changes to use genfs_lease_check, and had a dangling reference to lease_check(). Given that genfs_lease_check has been around since 1998, I'm puzzled as to what's been going on. Noticed in a compild of acorn32/GENERIC.
1.5.2.1	02-Jul-2003	darrenr	Apply the aborted ktrace-lwp changes to a specific branch. This is just for others to review, I'm concerned that patch fuziness may have resulted in some errant code being generated but I'll look at that later by comparing the diff from the base to the branch with the file I attempt to apply to it. This will, at the very least, put the changes in a better context for others to review them and attempt to tinker with removing passing of 'struct lwp' through the kernel.
1.9.2.1	29-May-2004	tron	Pull up revision 1.13 (requested by atatat in ticket #393): Sysctl descriptions under vfs subtree
1.17.4.1	19-Mar-2005	yamt	sync with head. xen and whitespace. xen part is not finished.
1.17.2.1	29-Apr-2005	kent	sync with -current
1.18.2.1	24-Aug-2005	riz	Pull up following revision(s) (requested by yamt in ticket #688): sys/miscfs/genfs/genfs_vnops.c: revision 1.98 via patch sys/ufs/ffs/ffs_vfsops.c: revision 1.165 sys/ufs/lfs/lfs_extern.h: revision 1.69 sys/fs/filecorefs/filecore_vfsops.c: revision 1.20 sys/nfs/nfs_node.c: revision 1.80 sys/fs/smbfs/smbfs_node.c: revision 1.24 sys/fs/cd9660/cd9660_vfsops.c: revision 1.24 sys/fs/msdosfs/msdosfs_denode.c: revision 1.8 sys/miscfs/genfs/genfs_node.h: revision 1.6 sys/ufs/lfs/lfs_vfsops.c: revision 1.183 sys/ufs/ext2fs/ext2fs_vfsops.c: revision 1.86 sys/fs/adosfs/advfsops.c: revision 1.23 sys/fs/ntfs/ntfs_vfsops.c: revision 1.31 - constify genfs_ops. - use member designators. sys/miscfs/genfs/genfs_vnops.c: revision 1.99 via patch genfs_getpages: don't forget to put the vnode onto the syncer's work que ue even in the case of PGO_LOCKED. sys/uvm/uvm_bio.c: revision 1.40 sys/uvm/uvm_pager.h: revision 1.29 sys/miscfs/genfs/genfs_vnops.c: revision 1.100 via patch sys/ufs/ufs/ufs_inode.c: revision 1.50 - introduce PGO_NOBLOCKALLOC and use it for ubc mapping to prevent unnecessary block allocations in the case that page size > block size. - ufs_balloc_range: use VM_PROT_WRITE+PGO_NOBLOCKALLOC rather than VM_PROT_READ. sys/uvm/uvm_fault.c: revision 1.96 sys/miscfs/genfs/genfs_vnops.c: revision 1.101 via patch sys/uvm/uvm_object.h: revision 1.19 sys/miscfs/genfs/genfs_node.h: revision 1.7 ensure that vnodes with dirty pages are always on syncer's queue. - genfs_putpages: wait for i/o completion of PG_RELEASED/PG_PAGEOUT pages by setting "wasclean" false when encountering them. suggested by Stephan Uphoff in PR/24596 (1). - genfs_putpages: write protect pages when cleaning out, if we're going to take the vnode off the syncer's queue. uvm_fault: don't write-map pages unless its vnode is already on the syncer's queue. fix PR/24596 (3) but in the different way from the suggested fix. (to keep our current behaviour, ie. not to require explicit msync. discussed on tech-kern@.) - genfs_putpages: don't mistakenly take a vnode off the queue by introducing a generation number in genfs_node. genfs_getpages: increment the generation number. suggested by Stephan Uphoff in PR/24596 (2). - add some assertions. sys/miscfs/genfs/genfs_vnops.c: revision 1.102 via patch genfs_putpages: don't bother to clean the vnode unless VONWORKLST. sys/ufs/ffs/ffs_vnops.c: revision 1.71 ffs_full_fsync: because VBLK/VCHR can be mmap'ed, do VOP_PUTPAGES for them as well. sys/uvm/uvm_fault.c: revision 1.97 uvm_fault: check a correct object in the case of layered filesystems. fix PR/30811 from Jukka Salmi. sys/uvm/uvm_object.h: revision 1.20 sys/ufs/ffs/ffs_vfsops.c: revision 1.167 sys/uvm/uvm_bio.c: revision 1.41 sys/ufs/ufs/ufs_vnops.c: revision 1.129 sys/uvm/uvm_mmap.c: revision 1.92 sys/uvm/uvm_fault.c: revision 1.98 sys/kern/vfs_subr.c: revision 1.252 sys/fs/msdosfs/denode.h: revision 1.5 sys/miscfs/genfs/genfs_vnops.c: revision 1.103 via patch sys/fs/msdosfs/msdosfs_denode.c: revision 1.9 sys/sys/vnode.h: revision 1.141 sys/ufs/ufs/ufs_inode.c: revision 1.51 sys/ufs/ufs/ufs_extern.h: revision 1.45 via patch sys/miscfs/genfs/genfs_node.h: revision 1.8 sys/ufs/lfs/lfs_vfsops.c: revision 1.184 sys/uvm/uvm_pager.h: revision 1.30 sys/ufs/ext2fs/ext2fs_vfsops.c: revision 1.87 update file timestamps for nfsd loaned-read and mmap. PR/25279. discussed on tech-kern@. sys/miscfs/genfs/genfs_vnops.c: revision 1.104 via patch don't write-protect wired pages. pointed by Chuck Silvers. for now, leave a vnode on the syncer's queue, as suggested by him. sys/ufs/ffs/ffs_vnops.c: revision 1.72 revert VCHR part of ffs_vnops.c 1.71. as VCHR uses the device pager, no point to call VOP_PUTPAGES here. pointed by Chuck Silvers.
1.20.2.9	11-Feb-2008	yamt	sync with head.
1.20.2.8	04-Feb-2008	yamt	sync with head.
1.20.2.7	21-Jan-2008	yamt	sync with head
1.20.2.6	07-Dec-2007	yamt	sync with head
1.20.2.5	27-Oct-2007	yamt	sync with head.
1.20.2.4	03-Sep-2007	yamt	sync with head.
1.20.2.3	26-Feb-2007	yamt	sync with head.
1.20.2.2	30-Dec-2006	yamt	sync with head.
1.20.2.1	21-Jun-2006	yamt	sync with head.
1.22.6.2	01-Jun-2006	kardel	Sync with head.
1.22.6.1	22-Apr-2006	simonb	Sync with head.
1.22.4.1	09-Sep-2006	rpaulo	sync with head
1.22.2.1	01-Mar-2006	yamt	sync with head.
1.23.6.1	24-May-2006	tron	Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.
1.23.4.2	19-Apr-2006	elad	adapt to kauth...
1.23.4.1	08-Mar-2006	elad	Adapt to kernel authorization KPI.
1.23.2.2	11-Aug-2006	yamt	sync with head
1.23.2.1	24-May-2006	yamt	sync with head.
1.25.4.1	13-Jul-2006	gdamore	Merge from HEAD.
1.27.6.2	10-Dec-2006	yamt	sync with head.
1.27.6.1	22-Oct-2006	yamt	sync with head
1.27.4.3	01-Feb-2007	ad	Sync with head.
1.27.4.2	12-Jan-2007	ad	Sync with head.
1.27.4.1	18-Nov-2006	ad	Sync with head.
1.28.2.1	17-Feb-2007	tron	Apply patch (requested by chs in ticket #422): - Fix various deadlock problems with nullfs and unionfs. - Speed up path lookups by upto 25%.
1.31.2.2	15-Apr-2007	yamt	sync with head.
1.31.2.1	12-Mar-2007	rmind	Sync with HEAD.
1.32.4.1	11-Jul-2007	mjf	Sync with head.
1.32.2.7	09-Oct-2007	ad	Sync with head.
1.32.2.6	24-Aug-2007	ad	Sync with buffer cache locking changes. See buf.h/vfs_bio.c for details. Some minor portions are incomplete and needs to be verified as a whole.
1.32.2.5	20-Aug-2007	ad	Sync with HEAD.
1.32.2.4	29-Jul-2007	ad	Add vfs_destroy() to free mount structures. The specificdata_ref was being leaked.
1.32.2.3	15-Jul-2007	ad	Sync with head.
1.32.2.2	17-Jun-2007	ad	- Increase the number of thread priorities from 128 to 256. How the space is set up is to be revisited. - Implement soft interrupts as kernel threads. A generic implementation is provided, with hooks for fast-path MD code that can run the interrupt threads over the top of other threads executing in the kernel. - Split vnode::v_flag into three fields, depending on how the flag is locked (by the interlock, by the vnode lock, by the file system). - Miscellaneous locking fixes and improvements.
1.32.2.1	10-Apr-2007	ad	Sync with head.
1.37.2.1	15-Aug-2007	skrll	Sync with HEAD.
1.40.8.2	31-Jul-2007	pooka	* nuke the nameidata parameter from VFS_MOUNT(). Nobody on tech-kern knew what it was supposed to be used for and wrstuden gave a go-ahead * while rototilling, convert file systems which went easily to use VFS_PROTOS() instead of manually prototyping the methods
1.40.8.1	31-Jul-2007	pooka	file filecore_vfsops.c was added on branch matt-mips64 on 2007-07-31 21:14:18 +0000
1.40.6.2	14-Oct-2007	yamt	sync with head.
1.40.6.1	06-Oct-2007	yamt	sync with head.
1.40.4.3	23-Mar-2008	matt	sync with HEAD
1.40.4.2	09-Jan-2008	matt	sync with HEAD
1.40.4.1	06-Nov-2007	matt	sync with HEAD
1.40.2.4	09-Dec-2007	jmcneill	Sync with HEAD.
1.40.2.3	27-Nov-2007	joerg	Sync with HEAD. amd64 Xen support needs testing.
1.40.2.2	26-Oct-2007	joerg	Sync with HEAD. Follow the merge of pmap.c on i386 and amd64 and move pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup code to restore CR4 before jumping back into kernel space as the large page option might cover that.
1.40.2.1	02-Oct-2007	joerg	Sync with HEAD.
1.43.4.3	18-Feb-2008	mjf	Sync with HEAD.
1.43.4.2	27-Dec-2007	mjf	Sync with HEAD.
1.43.4.1	08-Dec-2007	mjf	Sync with HEAD.
1.44.2.1	26-Dec-2007	ad	Sync with head.
1.49.10.5	11-Aug-2010	yamt	sync with head.
1.49.10.4	11-Mar-2010	yamt	sync with head
1.49.10.3	18-Jul-2009	yamt	sync with head.
1.49.10.2	04-May-2009	yamt	sync with head.
1.49.10.1	16-May-2008	yamt	sync with head.
1.49.8.1	18-May-2008	yamt	sync with head.
1.49.6.2	29-Jun-2008	mjf	Sync with HEAD.
1.49.6.1	02-Jun-2008	mjf	Sync with HEAD.
1.52.2.2	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.52.2.1	23-Jun-2008	wrstuden	Sync w/ -current. 34 merge conflicts to follow.
1.54.2.1	03-Jul-2008	simonb	Sync with head.
1.55.20.1	28-Apr-2014	sborrill	Pull up the following revisions(s) (requested by maxv in ticket #1901): sys/kern/vfs_syscalls.c: revision 1.478, 1.480 via patch sys/coda/coda_vfsops.c: revision 1.81 sys/fs/adosfs/advfsops.c: revision 1.70 sys/fs/cd9660/cd9660_vfsops.c: revision 1.84 sys/fs/efs/efs_vfsops.c: revision 1.25 sys/fs/filecorefs/filecore_vfsops.c: revision 1.76 sys/fs/hfs/hfs_vfsops.c: revision 1.31 sys/fs/msdosfs/msdosfs_vfsops.c: revision 1.107 sys/fs/ntfs/ntfs_vfsops.c: revision 1.94 sys/fs/ptyfs/ptyfs_vfsops.c: revision 1.50 via patch sys/fs/puffs/puffs_vfsops.c: revision 1.110 via patch sys/fs/smbfs/smbfs_vfsops.c: revision 1.100 sys/fs/sysvbfs/sysvbfs_vfsops.c: revision 1.43 sys/fs/tmpfs/tmpfs_vfsops.c: revision 1.59 via patch sys/fs/udf/udf_vfsops.c: revision 1.67 sys/fs/union/union_vfsops.c: revision 1.72 sys/fs/unionfs/unionfs_vfsops.c: revision 1.13 sys/kern/vfs_syscalls.c: revision 1.479 sys/miscfs/nullfs/null_vfsops.c: revision 1.88 via patch sys/miscfs/overlay/overlay_vfsops.c: revision 1.61 sys/miscfs/procfs/procfs_vfsops.c: revision 1.91 sys/miscfs/umapfs/umap_vfsops.c: revision 1.92 sys/nfs/nfs_vfsops.c: revision 1.227 sys/ufs/ext2fs/ext2fs_vfsops.c: revision 1.180 sys/ufs/ffs/ffs_vfsops.c: revision 1.297 sys/ufs/lfs/lfs_vfsops.c: revision 1.321 sys/ufs/mfs/mfs_vfsops.c: revision 1.107 Due to missing checks in the mount syscall, and a wrong assumption on the file systems side, the kernel could allocate an unbounded or zero-sized memory buffer, and could dereference a NULL pointer when particular arguments are given by a user.
1.55.16.1	28-Apr-2014	sborrill	Pull up the following revisions(s) (requested by maxv in ticket #1901): sys/kern/vfs_syscalls.c: revision 1.478, 1.480 via patch sys/coda/coda_vfsops.c: revision 1.81 sys/fs/adosfs/advfsops.c: revision 1.70 sys/fs/cd9660/cd9660_vfsops.c: revision 1.84 sys/fs/efs/efs_vfsops.c: revision 1.25 sys/fs/filecorefs/filecore_vfsops.c: revision 1.76 sys/fs/hfs/hfs_vfsops.c: revision 1.31 sys/fs/msdosfs/msdosfs_vfsops.c: revision 1.107 sys/fs/ntfs/ntfs_vfsops.c: revision 1.94 sys/fs/ptyfs/ptyfs_vfsops.c: revision 1.50 via patch sys/fs/puffs/puffs_vfsops.c: revision 1.110 via patch sys/fs/smbfs/smbfs_vfsops.c: revision 1.100 sys/fs/sysvbfs/sysvbfs_vfsops.c: revision 1.43 sys/fs/tmpfs/tmpfs_vfsops.c: revision 1.59 via patch sys/fs/udf/udf_vfsops.c: revision 1.67 sys/fs/union/union_vfsops.c: revision 1.72 sys/fs/unionfs/unionfs_vfsops.c: revision 1.13 sys/kern/vfs_syscalls.c: revision 1.479 sys/miscfs/nullfs/null_vfsops.c: revision 1.88 via patch sys/miscfs/overlay/overlay_vfsops.c: revision 1.61 sys/miscfs/procfs/procfs_vfsops.c: revision 1.91 sys/miscfs/umapfs/umap_vfsops.c: revision 1.92 sys/nfs/nfs_vfsops.c: revision 1.227 sys/ufs/ext2fs/ext2fs_vfsops.c: revision 1.180 sys/ufs/ffs/ffs_vfsops.c: revision 1.297 sys/ufs/lfs/lfs_vfsops.c: revision 1.321 sys/ufs/mfs/mfs_vfsops.c: revision 1.107 Due to missing checks in the mount syscall, and a wrong assumption on the file systems side, the kernel could allocate an unbounded or zero-sized memory buffer, and could dereference a NULL pointer when particular arguments are given by a user.
1.55.10.2	23-Jul-2009	jym	Sync with HEAD.
1.55.10.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.55.6.1	25-Apr-2014	sborrill	Pull up the following revisions(s) (requested by maxv in ticket #1901): sys/kern/vfs_syscalls.c: revision 1.478, 1.480 via patch sys/coda/coda_vfsops.c: revision 1.81 sys/fs/adosfs/advfsops.c: revision 1.70 sys/fs/cd9660/cd9660_vfsops.c: revision 1.84 sys/fs/efs/efs_vfsops.c: revision 1.25 sys/fs/filecorefs/filecore_vfsops.c: revision 1.76 sys/fs/hfs/hfs_vfsops.c: revision 1.31 sys/fs/msdosfs/msdosfs_vfsops.c: revision 1.107 sys/fs/ntfs/ntfs_vfsops.c: revision 1.94 sys/fs/ptyfs/ptyfs_vfsops.c: revision 1.50 via patch sys/fs/puffs/puffs_vfsops.c: revision 1.110 via patch sys/fs/smbfs/smbfs_vfsops.c: revision 1.100 sys/fs/sysvbfs/sysvbfs_vfsops.c: revision 1.43 sys/fs/tmpfs/tmpfs_vfsops.c: revision 1.59 via patch sys/fs/udf/udf_vfsops.c: revision 1.67 sys/fs/union/union_vfsops.c: revision 1.72 sys/fs/unionfs/unionfs_vfsops.c: revision 1.13 sys/kern/vfs_syscalls.c: revision 1.479 sys/miscfs/nullfs/null_vfsops.c: revision 1.88 via patch sys/miscfs/overlay/overlay_vfsops.c: revision 1.61 sys/miscfs/procfs/procfs_vfsops.c: revision 1.91 sys/miscfs/umapfs/umap_vfsops.c: revision 1.92 sys/nfs/nfs_vfsops.c: revision 1.227 sys/ufs/ext2fs/ext2fs_vfsops.c: revision 1.180 sys/ufs/ffs/ffs_vfsops.c: revision 1.297 sys/ufs/lfs/lfs_vfsops.c: revision 1.321 sys/ufs/mfs/mfs_vfsops.c: revision 1.107 Due to missing checks in the mount syscall, and a wrong assumption on the file systems side, the kernel could allocate an unbounded or zero-sized memory buffer, and could dereference a NULL pointer when particular arguments are given by a user.
1.55.4.1	28-Apr-2009	skrll	Sync with HEAD.
1.61.4.5	12-Jun-2011	rmind	sync with head
1.61.4.4	31-May-2011	rmind	sync with head
1.61.4.3	19-May-2011	rmind	Implement sharing of vnode_t::v_interlock amongst vnodes: - Lock is shared amongst UVM objects using uvm_obj_setlock() or getnewvnode(). - Adjust vnode cache to handle unsharing, add VI_LOCKSHARE flag for that. - Use sharing in tmpfs and layerfs for underlying object. - Simplify locking in ubc_fault(). - Sprinkle some asserts. Discussed with ad@.
1.61.4.2	03-Jul-2010	rmind	sync with head
1.61.4.1	30-May-2010	rmind	sync with head
1.61.2.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.61.2.1	30-Apr-2010	uebayasi	Sync with HEAD.
1.64.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.65.2.1	23-Jun-2011	cherry	Catchup with rmind-uvmplock merge.
1.67.2.3	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.67.2.2	23-Jan-2013	yamt	sync with head
1.67.2.1	17-Apr-2012	yamt	sync with head
1.68.12.1	21-Apr-2014	bouyer	Pull up following revision(s) (requested by maxv in ticket #1050): sys/ufs/chfs/chfs_vfsops.c: revision 1.11 sys/fs/unionfs/unionfs_vfsops.c: revision 1.13 sys/fs/nilfs/nilfs_vfsops.c: revision 1.16 sys/ufs/mfs/mfs_vfsops.c: revision 1.107 sys/fs/sysvbfs/sysvbfs_vfsops.c: revision 1.43 sys/ufs/ffs/ffs_vfsops.c: revision 1.297 sys/kern/vfs_syscalls.c: revision 1.478 sys/kern/vfs_syscalls.c: revision 1.479 sys/fs/puffs/puffs_vfsops.c: revision 1.110 sys/fs/cd9660/cd9660_vfsops.c: revision 1.84 sys/nfs/nfs_vfsops.c: revision 1.227 sys/fs/v7fs/v7fs_vfsops.c: revision 1.10 sys/ufs/ext2fs/ext2fs_vfsops.c: revision 1.180 sys/miscfs/umapfs/umap_vfsops.c: revision 1.92 sys/fs/filecorefs/filecore_vfsops.c: revision 1.76 sys/miscfs/nullfs/null_vfsops.c: revision 1.88 sys/fs/ptyfs/ptyfs_vfsops.c: revision 1.50 sys/coda/coda_vfsops.c: revision 1.81 sys/ufs/lfs/lfs_vfsops.c: revision 1.321 sys/fs/tmpfs/tmpfs_vfsops.c: revision 1.59 sys/fs/hfs/hfs_vfsops.c: revision 1.31 sys/miscfs/overlay/overlay_vfsops.c: revision 1.61 sys/fs/union/union_vfsops.c: revision 1.72 sys/fs/ntfs/ntfs_vfsops.c: revision 1.94 sys/kern/vfs_syscalls.c: revision 1.480 sys/fs/efs/efs_vfsops.c: revision 1.25 sys/kern/vfs_syscalls.c: revision 1.482 sys/fs/msdosfs/msdosfs_vfsops.c: revision 1.107 external/cddl/osnet/dist/uts/common/fs/zfs/zfs_vfsops.c: revision 1.12 sys/miscfs/procfs/procfs_vfsops.c: revision 1.91 sys/fs/smbfs/smbfs_vfsops.c: revision 1.100 sys/fs/adosfs/advfsops.c: revision 1.70 sys/fs/udf/udf_vfsops.c: revision 1.67 Limit check for 'data_len'. Otherwise a (un)privileged user can easily panic the system by passing a huge size. ok christos@ An (un)privileged user can easily make the kernel dereference a NULL pointer. The kernel allows 'data' to be NULL; it's the fs's responsibility to ensure that it isn't NULL (if the fs actually needs data). ok christos@ Some fs's - like kernfs - set their vfs_min_mount_data to zero. Add a check to prevent an (un)privileged user from requesting a zero-sized allocation (and thus a panic). This thing is totally buggy: 'data_len' is modified by the fs, so calling kmem_free with it while its value has changed since the kmem_alloc is far from being a good idea. If the kernel figures out that something mismatches, it will panic (typically with kernfs).
1.68.10.1	21-Apr-2014	bouyer	Pull up following revision(s) (requested by maxv in ticket #1050): sys/ufs/chfs/chfs_vfsops.c: revision 1.11 sys/fs/unionfs/unionfs_vfsops.c: revision 1.13 sys/fs/nilfs/nilfs_vfsops.c: revision 1.16 sys/ufs/mfs/mfs_vfsops.c: revision 1.107 sys/fs/sysvbfs/sysvbfs_vfsops.c: revision 1.43 sys/ufs/ffs/ffs_vfsops.c: revision 1.297 sys/kern/vfs_syscalls.c: revision 1.478 sys/kern/vfs_syscalls.c: revision 1.479 sys/fs/puffs/puffs_vfsops.c: revision 1.110 sys/fs/cd9660/cd9660_vfsops.c: revision 1.84 sys/nfs/nfs_vfsops.c: revision 1.227 sys/fs/v7fs/v7fs_vfsops.c: revision 1.10 sys/ufs/ext2fs/ext2fs_vfsops.c: revision 1.180 sys/miscfs/umapfs/umap_vfsops.c: revision 1.92 sys/fs/filecorefs/filecore_vfsops.c: revision 1.76 sys/miscfs/nullfs/null_vfsops.c: revision 1.88 sys/fs/ptyfs/ptyfs_vfsops.c: revision 1.50 sys/coda/coda_vfsops.c: revision 1.81 sys/ufs/lfs/lfs_vfsops.c: revision 1.321 sys/fs/tmpfs/tmpfs_vfsops.c: revision 1.59 sys/fs/hfs/hfs_vfsops.c: revision 1.31 sys/miscfs/overlay/overlay_vfsops.c: revision 1.61 sys/fs/union/union_vfsops.c: revision 1.72 sys/fs/ntfs/ntfs_vfsops.c: revision 1.94 sys/kern/vfs_syscalls.c: revision 1.480 sys/fs/efs/efs_vfsops.c: revision 1.25 sys/kern/vfs_syscalls.c: revision 1.482 sys/fs/msdosfs/msdosfs_vfsops.c: revision 1.107 external/cddl/osnet/dist/uts/common/fs/zfs/zfs_vfsops.c: revision 1.12 sys/miscfs/procfs/procfs_vfsops.c: revision 1.91 sys/fs/smbfs/smbfs_vfsops.c: revision 1.100 sys/fs/adosfs/advfsops.c: revision 1.70 sys/fs/udf/udf_vfsops.c: revision 1.67 Limit check for 'data_len'. Otherwise a (un)privileged user can easily panic the system by passing a huge size. ok christos@ An (un)privileged user can easily make the kernel dereference a NULL pointer. The kernel allows 'data' to be NULL; it's the fs's responsibility to ensure that it isn't NULL (if the fs actually needs data). ok christos@ Some fs's - like kernfs - set their vfs_min_mount_data to zero. Add a check to prevent an (un)privileged user from requesting a zero-sized allocation (and thus a panic). This thing is totally buggy: 'data_len' is modified by the fs, so calling kmem_free with it while its value has changed since the kmem_alloc is far from being a good idea. If the kernel figures out that something mismatches, it will panic (typically with kernfs).
1.68.6.1	21-Apr-2014	bouyer	Pull up following revision(s) (requested by maxv in ticket #1050): sys/ufs/chfs/chfs_vfsops.c: revision 1.11 sys/fs/unionfs/unionfs_vfsops.c: revision 1.13 sys/fs/nilfs/nilfs_vfsops.c: revision 1.16 sys/ufs/mfs/mfs_vfsops.c: revision 1.107 sys/fs/sysvbfs/sysvbfs_vfsops.c: revision 1.43 sys/ufs/ffs/ffs_vfsops.c: revision 1.297 sys/kern/vfs_syscalls.c: revision 1.478 sys/kern/vfs_syscalls.c: revision 1.479 sys/fs/puffs/puffs_vfsops.c: revision 1.110 sys/fs/cd9660/cd9660_vfsops.c: revision 1.84 sys/nfs/nfs_vfsops.c: revision 1.227 sys/fs/v7fs/v7fs_vfsops.c: revision 1.10 sys/ufs/ext2fs/ext2fs_vfsops.c: revision 1.180 sys/miscfs/umapfs/umap_vfsops.c: revision 1.92 sys/fs/filecorefs/filecore_vfsops.c: revision 1.76 sys/miscfs/nullfs/null_vfsops.c: revision 1.88 sys/fs/ptyfs/ptyfs_vfsops.c: revision 1.50 sys/coda/coda_vfsops.c: revision 1.81 sys/ufs/lfs/lfs_vfsops.c: revision 1.321 sys/fs/tmpfs/tmpfs_vfsops.c: revision 1.59 sys/fs/hfs/hfs_vfsops.c: revision 1.31 sys/miscfs/overlay/overlay_vfsops.c: revision 1.61 sys/fs/union/union_vfsops.c: revision 1.72 sys/fs/ntfs/ntfs_vfsops.c: revision 1.94 sys/kern/vfs_syscalls.c: revision 1.480 sys/fs/efs/efs_vfsops.c: revision 1.25 sys/kern/vfs_syscalls.c: revision 1.482 sys/fs/msdosfs/msdosfs_vfsops.c: revision 1.107 external/cddl/osnet/dist/uts/common/fs/zfs/zfs_vfsops.c: revision 1.12 sys/miscfs/procfs/procfs_vfsops.c: revision 1.91 sys/fs/smbfs/smbfs_vfsops.c: revision 1.100 sys/fs/adosfs/advfsops.c: revision 1.70 sys/fs/udf/udf_vfsops.c: revision 1.67 Limit check for 'data_len'. Otherwise a (un)privileged user can easily panic the system by passing a huge size. ok christos@ An (un)privileged user can easily make the kernel dereference a NULL pointer. The kernel allows 'data' to be NULL; it's the fs's responsibility to ensure that it isn't NULL (if the fs actually needs data). ok christos@ Some fs's - like kernfs - set their vfs_min_mount_data to zero. Add a check to prevent an (un)privileged user from requesting a zero-sized allocation (and thus a panic). This thing is totally buggy: 'data_len' is modified by the fs, so calling kmem_free with it while its value has changed since the kmem_alloc is far from being a good idea. If the kernel figures out that something mismatches, it will panic (typically with kernfs).
1.68.4.1	05-Apr-2012	mrg	sync to latest -current.
1.69.2.3	03-Dec-2017	jdolecek	update from HEAD
1.69.2.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.69.2.1	25-Feb-2013	tls	resync with head
1.70.2.1	18-May-2014	rmind	sync with head
1.75.2.1	10-Aug-2014	tls	Rebase.
1.77.2.2	28-Aug-2017	skrll	Sync with HEAD
1.77.2.1	06-Apr-2015	skrll	Sync with HEAD
1.78.4.1	21-Apr-2017	bouyer	Sync with HEAD
1.78.2.3	26-Apr-2017	pgoyette	Sync with HEAD
1.78.2.2	20-Mar-2017	pgoyette	Sync with HEAD
1.78.2.1	20-Jul-2016	pgoyette	Adapt machine-independant code to the new {b,c}devsw reference-counting (using localcount(9)). All callers of {b,c}devsw_lookup() now call {b,c}devsw_lookup_acquire() which retains a reference on the 'struct {b,c}devsw'. This reference must be released by the caller once it is finished with the structure's content (or other data that would disappear if the 'struct {b,c}devsw' were to disappear).
1.81.18.1	17-Jan-2020	ad	Sync with head.
1.81.12.1	08-Apr-2020	martin	Merge changes from current as of 20200406
1.81.2.1	27-Apr-2017	pgoyette	Restore all work from the former pgoyette-localcount branch (which is now abandoned doe to cvs merge botch). The branch now builds, and installs via anita. There are still some problems (cgd is non-functional and all atf tests time-out) but they will get resolved soon.
1.50	27-Mar-2022	christos	dedup the eofs link/symlink methods
1.49	18-Jul-2021	dholland	Abolish all the silly indirection macros for initializing vnode ops tables. These are things of the form #define foofs_op genfs_op, or #define foofs_op genfs_eopnotsupp, or similar. They serve no purpose besides obfuscation, and have gotten cutpasted all over everywhere.
1.48	29-Jun-2021	dholland	- Add a new vnode op: VOP_PARSEPATH. - Move namei_getcomponent to genfs_vnops.c and call it genfs_parsepath. - Add a parsepath entry to every vnode ops table. VOP_PARSEPATH takes a directory vnode to be searched and a complete following path and chooses how much of that path to consume. To begin with, all parsepath calls are genfs_parsepath, which locates the first '/' as always. Note that the call doesn't take the whole struct componentname, only the string. The other bits of struct componentname should not be needed and there's no reason to cause potential complications by exposing them.
1.47	27-Jun-2020	christos	branches: 1.47.6; Introduce genfs_pathconf() and use it for the default case in all filesystems.
1.46	16-May-2020	christos	Add ACL support for FFS. From FreeBSD.
1.45	23-Apr-2020	ad	PR kern/54759 (vm.ubc_direct deadlock when read()/write() into mapping of itself) - Add new flag UBC_ISMAPPED which tells ubc_uiomove() the object is mmap()ed somewhere. Use it to decide whether to do direct-mapped copy, rather than poking around directly in the vnode in ubc_uiomove(), which is ugly and doesn't work for tmpfs. It would be nicer to contain all this in UVM but the filesystem provides the needed locking here (VV_MAPPED) and to reinvent that would suck more. - Rename UBC_UNMAP_FLAG() to UBC_VNODE_FLAGS(). Pass in UBC_ISMAPPED where appropriate.
1.44	20-Apr-2015	riastradh	branches: 1.44.28; Make VOP_LINK return directory still locked and referenced. Ride 7.99.10 bump.
1.43	28-Mar-2015	maxv	Remove the 'cred' argument from bread(). Remove a now unused var in ffs_snapshot.c. Update the man page accordingly. ok hannken@
1.42	25-Jul-2014	dholland	branches: 1.42.4; Add VOP_FALLOCATE and VOP_FDISCARD to every vnode ops table I can find. The filesystem ones all call genfs_eopnotsupp - right now I am only implementing the plumbing and we can implement fallocate and/or fdiscard for files later. The device ones call spec_fallocate (which is also genfs_eopnotsupp) and spec_fdiscard, which dispatches to the device-level op. The fifo ones all call vn_fifo_bypass, which also ends up being EOPNOTSUPP.
1.41	23-Jan-2014	hannken	branches: 1.41.2; Change vnode operations create, mknod, mkdir and symlink to return the resulting vnode *vpp unlocked. Discussed on tech-kern@ Welcome to 6.99.30
1.40	17-Jan-2014	hannken	Change vnode operations create, mknod, mkdir and symlink to keep the directory node dvp locked on return. Discussed on tech-kern@ Welcome to 6.99.29
1.39	20-Oct-2013	christos	remove unused
1.38	23-Jun-2013	dholland	branches: 1.38.2; Stick ffs_, ext2_, chfs_, filecore_, cd9660_, or mfs_ in front of the following symbols so as to disambiguate fully. (Christos already did the lfs ones.) lblkno lblktosize lfragtosize numfrags blkroundup fragroundup
1.37	19-Jun-2013	dholland	blkoff() -> filecore_blkoff() blksize() -> filecore_blksize()
1.36	18-Mar-2013	plunky	C99 section 6.7.2.3 (Tags) Note 3 states that: A type specifier of the form enum identifier without an enumerator list shall only appear after the type it specifies is complete. which means that we cannot pass an "enum vtype" argument to kauth_access_action() without fully specifying the type first. Unfortunately there is a complicated include file loop which makes that difficult, so convert this minimal function into a macro (and capitalize it). (ok elad@)
1.35	20-Dec-2012	hannken	Change bread() and breadn() to never return a buffer on error and modify all callers to not brelse() on error. Welcome to 6.99.16 PR kern/46282 (6.0_BETA crash: msdosfs_bmap -> pcbmap -> bread -> bio_doread)
1.34	13-Mar-2012	elad	branches: 1.34.2; Replace the remaining KAUTH_GENERIC_ISSUSER authorization calls with something meaningful. All relevant documentation has been updated or written. Most of these changes were brought up in the following messages: http://mail-index.netbsd.org/tech-kern/2012/01/18/msg012490.html http://mail-index.netbsd.org/tech-kern/2012/01/19/msg012502.html http://mail-index.netbsd.org/tech-kern/2012/02/17/msg012728.html Thanks to christos, manu, njoly, and jmmv for input. Huge thanks to pgoyette for spinning these changes through some build cycles and ATF.
1.33	23-May-2011	rmind	branches: 1.33.4; 1.33.8; Convert some simple_lock(9) uses to mutex(9) and malloc(9) to kmem(9).
1.32	03-Jul-2009	elad	branches: 1.32.4; 1.32.6; Where possible, extract the file-system's access() routine to two internal functions: the first checking if the operation is possible (regardless of permissions), the second checking file-system permissions, ACLs, etc. Mailing list reference: http://mail-index.netbsd.org/tech-kern/2009/06/21/msg005311.html
1.31	23-Jun-2009	elad	Move the implementation of vaccess() to genfs_can_access(), in line with the other routines of the same spirit. Adjust file-system code to use it. Keep vaccess() for KPI compatibility and to keep element of least surprise. A "diagnostic" message warning that vaccess() is deprecated will be printed when it's used (obviously, only in DIAGNOSTIC kernels). No objections on tech-kern@: http://mail-index.netbsd.org/tech-kern/2009/06/21/msg005310.html
1.30	14-Mar-2009	dsl	ANSIfy another 1261 function definitions. The only ones left in sys are beyond by sed script! (or in sys/dist or sys/external) Mostly they have function pointer parameters.
1.29	14-Mar-2009	dsl	Remove all the __P() from sys (excluding sys/dist) Diff checked with grep and MK1 eyeball. i386 and amd64 GENERIC and sys still build.
1.28	26-Nov-2008	pooka	branches: 1.28.4; Rototill all remaining file systems to use ubc_uiomove() instead of the ubc_alloc() - uiomove() - ubc_release() dance.
1.27	16-May-2008	hannken	branches: 1.27.4; 1.27.6; Make sure all cached buffers with valid, not yet written data have been run through copy-on-write. Call fscow_run() with valid data where possible. The LP_UFSCOW hack is no longer needed to protect ffs_copyonwrite() against endless recursion. - Add a flag B_MODIFY to bread(), breada() and breadn(). If set the caller intends to modify the buffer returned. - Always run copy-on-write on buffers returned from ffs_balloc(). - Add new function ffs_getblk() that gets a buffer, assigns a new blkno, may clear the buffer and runs copy-on-write. Process possible errors from getblk() or fscow_run(). Part of PR kern/38664. Welcome to 4.99.63 Reviewed by: YAMAMOTO Takashi <yamt@netbsd.org>
1.26	30-Apr-2008	ad	branches: 1.26.2; Make various bits of debug code compile again.
1.25	25-Jan-2008	ad	branches: 1.25.6; 1.25.8; 1.25.10; Remove VOP_LEASE. Discussed on tech-kern.
1.24	26-Nov-2007	pooka	Remove the "struct lwp *" argument from all VFS and VOP interfaces. The general trend is to remove it from all kernel interfaces and this is a start. In case the calling lwp is desired, curlwp should be used. quick consensus on tech-kern
1.23	08-Oct-2007	ad	branches: 1.23.4; Merge brelse() changes from the vmlocking branch.
1.22	24-Sep-2007	rumble	Avoid stack allocation of large dirent structures in foo_readdir().
1.21	29-Jul-2007	rumble	branches: 1.21.4; 1.21.6; 1.21.8; 1.21.10; Use _DIRENT_MINSIZE when determining the number of NFS cookies to allocate, rather than hard-coding 16.
1.20	29-Jul-2007	ad	It's not a good idea for device drivers to modify b_flags, as they don't need to understand the locking around that field. Instead of setting B_ERROR, set b_error instead. b_error is 'owned' by whoever completes the I/O request.
1.19	04-Mar-2007	jnemeth	branches: 1.19.2; 1.19.10; yet more caddr_t -> void * fallout
1.18	15-May-2006	christos	branches: 1.18.14; More kauth fallout.
1.17	14-May-2006	elad	integrate kauth.
1.16	11-Dec-2005	christos	branches: 1.16.4; 1.16.6; 1.16.8; 1.16.10; 1.16.12; merge ktrace-lwp.
1.15	29-Nov-2005	yamt	merge yamt-readahead branch.
1.14	02-Nov-2005	yamt	branches: 1.14.2; merge yamt-vop branch. remove following VOPs. VOP_BLKATOFF VOP_VALLOC VOP_BALLOC VOP_REALLOCBLKS VOP_VFREE VOP_TRUNCATE VOP_UPDATE
1.13	19-Aug-2005	christos	branches: 1.13.2; namlen is u_int16_t now.
1.12	19-Aug-2005	christos	Add an _ to DIRENT_SIZE
1.11	09-Jan-2005	chs	branches: 1.11.10; adjust the UBC mapping code to support non-vnode uvm_objects. this means we can no longer look at the vnode size to determine how many pages to request in a fault, which is good since for NFS the size can change out from under us on the server anyway. there's also a new flag UBC_UNMAP for ubc_release(), so that the file system code can make the decision about whether to cache mappings for files being used as executables.
1.10	13-Sep-2004	jdolecek	set mp->mnt_stat.f_namemax on filesystem mount for use by statvfs, and use the value for also pathconf(_PC_NAME_MAX) to keep the two in sync
1.9	12-May-2004	jrf	caddr_t -> void * and removal of some more casts.
1.8	26-Jan-2004	hannken	Fix xxx_strategy() to use the vnode arg instead of bp->b_vp.
1.7	25-Jan-2004	hannken	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.
1.6	07-Aug-2003	agc	Move UCB-licensed code from 4-clause to 3-clause licence. Patches provided by Joel Baker in PR 22364, verified by myself.
1.5	06-Jul-2003	rearnsha	Fix a build failure when NFSSERVER. Unconditionally define filecore_lease_check to genfs_lease_check (was previously lease_check which isn't defined anywhere). No need to include opt_nfsserver.h any more.
1.4	26-Jun-2003	itojun	branches: 1.4.2; strlcpy
1.3	23-Jun-2003	martin	#ifdef _KERNEL_OPT police
1.2	23-Jun-2003	martin	Make sure to include opt_foo.h if a defflag option FOO is used.
1.1	23-Dec-2002	jdolecek	branches: 1.1.2; move filecorefs code from sys/filecorefs to sys/fs/filecorefs
1.1.2.2	29-Dec-2002	thorpej	With with HEAD.
1.1.2.1	23-Dec-2002	thorpej	file filecore_vnops.c was added on branch nathanw_sa on 2002-12-29 19:55:53 +0000
1.4.2.9	11-Dec-2005	christos	Sync with head.
1.4.2.8	10-Nov-2005	skrll	Sync with HEAD. Here we go again...
1.4.2.7	17-Jan-2005	skrll	Sync with HEAD.
1.4.2.6	27-Oct-2004	skrll	Fix various comments that describe the argument structures
1.4.2.5	21-Sep-2004	skrll	Fix the sync with head I botched.
1.4.2.4	18-Sep-2004	skrll	Sync with HEAD.
1.4.2.3	12-Aug-2004	skrll	Sync with HEAD.
1.4.2.2	03-Aug-2004	skrll	Sync with HEAD
1.4.2.1	03-Jul-2003	wrstuden	LWP-ify filecore fs. Note: These changes suffer from the same cnp->cn_lwp issue noted for ufs. They will need to get fixed at the same time as ufs. The fix is to add struct lwp * as a parameter to some VOPs. Also, some how or another, this code missed out on the changes to use genfs_lease_check, and had a dangling reference to lease_check(). Given that genfs_lease_check has been around since 1998, I'm puzzled as to what's been going on. Noticed in a compild of acorn32/GENERIC.
1.11.10.5	04-Feb-2008	yamt	sync with head.
1.11.10.4	07-Dec-2007	yamt	sync with head
1.11.10.3	27-Oct-2007	yamt	sync with head.
1.11.10.2	03-Sep-2007	yamt	sync with head.
1.11.10.1	21-Jun-2006	yamt	sync with head.
1.13.2.1	20-Oct-2005	yamt	adapt filecore.
1.14.2.3	19-Nov-2005	yamt	- as read-ahead context is per-vnode now, there are less reasons to make VOP_READ call uvm_ra_request explicitly. move it to pager (uvn_get) so that it can handle accesses via mmap as well. - pass advice to pager via ubc. - tweak DPRINTF. XXX can be disturbed by PGO_LOCKED. XXX it's controversial where it should be done. (uvm_fault, uvn_get or genfs_getpages.)
1.14.2.2	18-Nov-2005	yamt	- associate read-ahead context to vnode, rather than file. - revert VOP_READ prototype.
1.14.2.1	15-Nov-2005	yamt	adapt the rest of filesystems which use genfs_getpages.
1.16.12.1	24-May-2006	tron	Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.
1.16.10.1	08-Mar-2006	elad	Adapt to kernel authorization KPI.
1.16.8.1	24-May-2006	yamt	sync with head.
1.16.6.1	01-Jun-2006	kardel	Sync with head.
1.16.4.1	09-Sep-2006	rpaulo	sync with head
1.18.14.1	12-Mar-2007	rmind	Sync with HEAD.
1.19.10.1	15-Aug-2007	skrll	Sync with HEAD.
1.19.2.3	09-Oct-2007	ad	Sync with head.
1.19.2.2	20-Aug-2007	ad	Sync with HEAD.
1.19.2.1	19-Aug-2007	ad	- Back out the biodone() changes. - Eliminate B_ERROR (from HEAD).
1.21.10.2	29-Jul-2007	rumble	Use _DIRENT_MINSIZE when determining the number of NFS cookies to allocate, rather than hard-coding 16.
1.21.10.1	29-Jul-2007	rumble	file filecore_vnops.c was added on branch matt-mips64 on 2007-07-29 21:17:42 +0000
1.21.8.2	14-Oct-2007	yamt	sync with head.
1.21.8.1	06-Oct-2007	yamt	sync with head.
1.21.6.3	23-Mar-2008	matt	sync with HEAD
1.21.6.2	09-Jan-2008	matt	sync with HEAD
1.21.6.1	06-Nov-2007	matt	sync with HEAD
1.21.4.3	27-Nov-2007	joerg	Sync with HEAD. amd64 Xen support needs testing.
1.21.4.2	26-Oct-2007	joerg	Sync with HEAD. Follow the merge of pmap.c on i386 and amd64 and move pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup code to restore CR4 before jumping back into kernel space as the large page option might cover that.
1.21.4.1	02-Oct-2007	joerg	Sync with HEAD.
1.23.4.2	18-Feb-2008	mjf	Sync with HEAD.
1.23.4.1	08-Dec-2007	mjf	Sync with HEAD.
1.25.10.3	18-Jul-2009	yamt	sync with head.
1.25.10.2	04-May-2009	yamt	sync with head.
1.25.10.1	16-May-2008	yamt	sync with head.
1.25.8.1	18-May-2008	yamt	sync with head.
1.25.6.2	17-Jan-2009	mjf	Sync with HEAD.
1.25.6.1	02-Jun-2008	mjf	Sync with HEAD.
1.26.2.1	23-Jun-2008	wrstuden	Sync w/ -current. 34 merge conflicts to follow.
1.27.6.2	28-Apr-2009	skrll	Sync with HEAD.
1.27.6.1	19-Jan-2009	skrll	Sync with HEAD.
1.27.4.1	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.28.4.2	23-Jul-2009	jym	Sync with HEAD.
1.28.4.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.32.6.1	06-Jun-2011	jruoho	Sync with HEAD.
1.32.4.1	31-May-2011	rmind	sync with head
1.33.8.1	05-Apr-2012	mrg	sync to latest -current.
1.33.4.3	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.33.4.2	23-Jan-2013	yamt	sync with head
1.33.4.1	17-Apr-2012	yamt	sync with head
1.34.2.4	03-Dec-2017	jdolecek	update from HEAD
1.34.2.3	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.34.2.2	23-Jun-2013	tls	resync from head
1.34.2.1	25-Feb-2013	tls	resync with head
1.38.2.1	18-May-2014	rmind	sync with head
1.41.2.1	10-Aug-2014	tls	Rebase.
1.42.4.2	06-Jun-2015	skrll	Sync with HEAD
1.42.4.1	06-Apr-2015	skrll	Sync with HEAD
1.44.28.1	25-Apr-2020	bouyer	Sync with bouyer-xenpvh-base2 (HEAD)
1.47.6.1	01-Aug-2021	thorpej	Sync with HEAD.
1.4	11-Oct-2014	uebayasi	Define filesystem attributes with vfs dependency.
1.3	11-Dec-2005	christos	branches: 1.3.120; merge ktrace-lwp.
1.2	26-Feb-2005	perry	nuke trailing whitespace
1.1	23-Dec-2002	jdolecek	branches: 1.1.2; 1.1.4; 1.1.12; 1.1.14; move filecorefs code from sys/filecorefs to sys/fs/filecorefs
1.1.14.1	19-Mar-2005	yamt	sync with head. xen and whitespace. xen part is not finished.
1.1.12.1	29-Apr-2005	kent	sync with -current
1.1.4.1	04-Mar-2005	skrll	Sync with HEAD. Hi Perry!
1.1.2.2	29-Dec-2002	thorpej	With with HEAD.
1.1.2.1	23-Dec-2002	thorpej	file files.filecorefs was added on branch nathanw_sa on 2002-12-29 19:55:53 +0000
1.3.120.1	03-Dec-2017	jdolecek	update from HEAD

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