CVS log for src/sys/fs/sysvbfs/sysvbfs_vnops.c

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Keyword substitution: kv
Default branch: MAIN

Check credentials when setting uid, gid or mode attributes.

Start making fs read(2) fail with EISDIR if the implementation does
not allow read on directories (kernfs, rumpfs, ptyfs and sysvbfs).
Adjust man page accordingly, and add a small corresponding vfs
testcase.

Sync with HEAD.

sync with head

Remove cache_purge(9) calls from reclamation routines in the file systems,
as vclean(9) performs it for us since Lite2 merge.

Change vflushbuf() to return an error if a synchronous write fails.

Welcome to 5.99.51.

sync with head

Sync with HEAD

In sysvbfs_lookup(), deny last component write operation on a
read-only mount.
Fix PR/44302: sysvbfs allows unlink on fs mounted MNT_RDONLY.

Reviewed by pooka.

Abolish the SAVENAME and HASBUF flags. There is now always a buffer,
so the path in a struct componentname is now always valid during VOP
calls.

Abolish struct componentname's cn_pnbuf. Use the path buffer in the
pathbuf object passed to namei as work space instead. (For now a pnbuf
pointer appears in struct nameidata, to support certain unclean things
that haven't been fixed yet, but it will be going away in the future.)

This removes the need for the SAVENAME and HASBUF namei flags.

Sync with HEAD.

sync with head.

Fix build with SYSVBFS_VNOPS_DEBUG.

Small typo in comment.

sync with head

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.

sync with head

Mark files removed in the in-memory structure.  This allows us
to do two things:

 1) properly set "recycle?" in inactive
 2) easily check if we are renaming a removed vnode.  without the
    check, it was possible to enter a dirent in the file system for
    a removed (and hence scheduled to be vcleaned) vnode.  this would
    lead to the succesful vget() of a clean vnode.  the use of the
    cleaned vnode was, however, less succesful, except for purposes
    of crashing.

Release pathname buffers after use.

fix refcounting

Initialize *vpp to NULL: relookup() requires it without initializing
the value before the call (yea, changing relookup would probably
be smart, but other file systems already initialize vpp, so I'm
letting someone else experiment with tylenol od).

sync with head

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

Remove extra semicolons.

Sync with HEAD.

sync with head.

Define error before using it.

(Hello again, elad!)

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

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

sync with head.

Sync with HEAD.

Sync with HEAD.

Update haad-dm branch to haad-dm-base2.

Rototill all remaining file systems to use ubc_uiomove() instead
of the ubc_alloc() - uiomove() - ubc_release() dance.

more <sys/buf.h> police

Sync with HEAD.

sync with head.

sync with head.

Make various bits of debug code compile again.

Remove clause 3 and 4 from TNF licenses

Sync with HEAD.

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sync with HEAD

Sync with HEAD

Merge vmlocking2 to head.

Sync with HEAD.

Sync with head.

__FUNCTION__ -> __func__

Sync with HEAD.

Sync with head.

sync with head

Pull the vmlocking changes into a new branch.

Sync with HEAD. amd64 Xen support needs testing.

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

sync with HEAD

sync with head.

Sync with head.

sync with head.

Sync with HEAD.

Avoid stack allocation of large dirent structures in foo_readdir().

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.

sync with head.

- Back out the biodone() changes.
- Eliminate B_ERROR (from HEAD).

Sync with HEAD.

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.

file sysvbfs_vnops.c was added on branch matt-mips64 on 2007-07-29 13:31:11 +0000

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.

Sync with head.

Sync with head.

Sync with head.

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.

- sync with head.
- move sched_changepri back to kern_synch.c as it doesn't know PPQ anymore.

sync with head.

TRUE -> true, FALSE -> false

Replace the Mach-derived boolean_t type with the C99 bool type.  A
future commit will replace use of TRUE and FALSE with true and false.

Call genfs_node_destroy() where appropriate.

Apply patch (requested by chs in ticket #422):
- Fix various deadlock problems with nullfs and unionfs.
- Speed up path lookups by upto 25%.

Sync with head.

Remove more duplicate headers.
Patch by Slava Semushin <slava.semushin@gmail.com>

Again, this was tested by comparing obj files from a pristine and a patched
source tree against an i386/ALL kernel, and also for src/sbin/fsck_ffs,
src/sbin/fsdb and src/usr.sbin/makefs. Only changes in assert() line numbers
were detected in 'objdump -d' output.

Sync with head.

sync with head.

Spell "algorithm" correctly. From Zafer Aydogan.

sync with head.

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().

sync with head

sync with head

Merge from HEAD.

Redo previous differently - just use time_second.
Pointed out by Frank Kardel.

Make it compile post time-counter merge

sync with head.

Sync with head.

Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.

sync with head.

file sysvbfs_vnops.c was added on branch yamt-lazymbuf on 2006-06-21 15:09:30 +0000

don't try to dereference kauth_cred_t.

integrate kauth.

Adapt to kernel authorization KPI.

Add preliminary support for System V Boot File System.
Written by UCHIYAMA Yasushi <uch@netbsd>.