Remove KDIR=, since SYS_INCLUDE=symlinks and KDIR are not supported any more.

branches: 1.1.26;
Rework the way kernel include files are installed. In the new method,
as with user-land programs, include files are installed by each directory
in the tree that has includes to install. (This allows more flexibility
as to what gets installed, makes 'partial installs' easier, and gives us
more options as to which machines' includes get installed at any given
time.) The old SYS_INCLUDES={symlinks,copies} behaviours are _both_
still supported, though at least one bug in the 'symlinks' case is
fixed by this change. Include files can't be build before installation,
so directories that have includes as targets (e.g. dev/pci) have to move
those targets into a different Makefile.

Clean up deleted files.

copyright foo

add rcs ids, and clean up headers where necessary

Add consistent multiple-inclusion protection.

branches: 1.1.1;
Initial revision

Add in-kernel cleaner. Move cleaning-related routines into their own file.
Document the fcntl calls better in lfs.h. Bounds-check inode numbers in
segment parsing functions. Use the in-kernel cleaner in a greedy mode
for tests in tests/fs/vfs, and add a test of the kernel cleaner.

Add working in-kernel roll forward.

the UFS_EXTATTR option was supposed to affect only UFS1 file systems,
but when the UFS2 extattr code was merged, the UFS_EXTATTR option was
mistakenly changed to affect UFS2 file systems as well. this commit
changes UFS_EXTATTR back to affecting only UFS1 file systems as originally
intended. in UFS2 (or rather UFS2ea in NetBSD), extattrs are a
native feature and are always supported.

lfs: Include lfs_debug.c only if DEBUG is enabled.

Add ACL support for FFS. From FreeBSD.

Extended attribute support for ffsv2, from FreeBSD.

remove noncompilable WAPBL_DEBUG_INODES

PR kern/49554 by Thomas Klausner

branches: 1.45.8;
Don't include any of the ufs code if all the dependent filesystems are missing.

Include the fs scaffolding when none of the ffs/mfs/ext2fs/chfs is included
so a MODULAR kernel links.

branches: 1.43.16;
add support for extended attributes in ext2fs for ext3/ext4; read-only for now

GSoC 2016 (Hrishikesh Goyal): Htree index support from FreeBSD

add extents.

Change lfs from hash table to vcache.

- Change lfs_valloc() to return an inode number and version instead of
a vnode and move lfs_ialloc() and lfs_vcreate() to new lfs_init_vnode().

- Add lfs_valloc_fixed() to allocate a known inode, used by kernel
roll forward.

- Remove lfs_*ref(), these functions cannot coexist with vcache and
their commented behaviour is far away from their implementation.

- Add the cleaner lwp and blockinfo to struct ulfsmount so lfs_loadvnode()
may use hints from the cleaner.

- Remove vnode locks from ulfs_lookup() like we did with ufs_lookup().

Change chfs from hashlist to vcache.

branches: 1.38.2;
Remove unused extended attributes kernel options

As Masao Uebayashi pointed to me, UFS_EXTATTR_AUTOSTART, LFS_EXTATTR_AUTOSTART
and UFS_EXTATTR_AUTOCREATE are not used anywhere in the code. Remove them
as they have been obsolete for a long time:
UFS_EXTATTR_AUTOSTART was replaced by mount -o extattr
LFS_EXTATTR_AUTOSTART was created to match obsolete UFS_EXTATTR_AUTOSTART
UFS_EXTATTR_AUTOCREATE was replaced by sysctl vfs.ffs.extattr_autocreate

To make sure that I'm not doing wrong, try to define ffs/ufs/vfs dependencies
a little more strictly.

branches: 1.36.2;
Move lfs_getpages and lfs_putpages to their own file.

Add a global vnode cache:

- vcache_get() retrieves a referenced and initialised vnode / fs node pair.
- vcache_remove() removes a vnode / fs node pair from the cache.

On cache miss vcache_get() calls new vfs operation vfs_loadvnode() to
initialise a vnode / fs node pair. This call is guaranteed exclusive,
no other thread will try to load this vnode / fs node pair.

Convert ufs/ext2fs, ufs/ffs and ufs/mfs to use this interface.

Remove now unused ufs/ufs_ihash

Discussed on tech-kern.

Welcome to 6.99.41

branches: 1.34.2;
Merge riastradh-drm2 to HEAD.

Collect the pieces of lfs rename into lfs_rename.c, and sprinkle static.

branches: 1.32.2; 1.32.4;
G/C

Apparently we also need to cut and paste ffs_snapgone() in order to be
able to link the ufs code.

Instead of actually cutting and pasting it (as it depends on ffs-only
things) implement it as panic. Probably we'll be able to demonstrate
later that it's unreachable.

XXX: Someone should add snapgone to struct ufs_ops in ufs/ufsmount.h,
XXX: and fix ufs/ufs_lookup.c to not hardwire ffs.

Split lfs from ufs step 3: rearrange config stuff.
Add new options:
LFS_EI
LFS_DIRHASH
LFS_EXTATTR
LFS_EXTATTR_AUTOSTART
LFS_QUOTA
LFS_QUOTA2

and update code referring to the corresponding FFS and UFS config
symbols to use the LFS versions. Disable the one extant reference
to APPLE_UFS in the ulfs files. Use opt_lfs.h only, not opt_ffs.h.

branches: 1.29.2;
Adapt ffs, lfs, and ext2fs to use genfs_rename.

ok dholland, rmind

chfs/debug.c deleted from files.ufs

branches: 1.27.2;
Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

branches: 1.26.4;
Add a new libquota library, which contains some blocks to build and/or
parse quota plists; as well as a getfsquota() function to retrieve quotas
for a single id from a single filesystem (whatever filesystem this is:
a local quota-enabled fs or NFS). This is build on functions getufsquota()
(for local filesystems with UFS-like quotas) and getnfsquota();
which are also available to userland programs.
move functions from quota2_subr.c to libquota or libprop as appropriate,
and ajust in-tree quota tools.
move some declarations from kernel headers to either sys/quota.h or
quota/quota.h as appropriate. ufs/ufs/quota.h still installed because
it's needed by other installed ufs headers.
ufs/ufs/quota1.h still installed as a quick&dirty way to get a code
using the old quotactl() to compile (just include ufs/ufs/quota1.h instead of
ufs/ufs/quota.h - old code won't compile without this change and this is
on purpose).
Discussed on tech-kern@ and tech-net@ (long thread, but not much about
libquota itself ...)

merge the bouyer-quota2 branch. This adds a new on-disk format
to store disk quota usage and limits, integrated with ffs
metadata. Usage is checked by fsck_ffs (no more quotacheck)
and is covered by the WAPBL journal. Enabled with kernel
option QUOTA2 (added where QUOTA was enabled in kernel config files),
turned on with tunefs(8) on a per-filesystem
basis. mount_mfs(8) can also turn quotas on.

See http://mail-index.netbsd.org/tech-kern/2011/02/19/msg010025.html
for details.

branches: 1.24.2; 1.24.4; 1.24.6;
fs_lfs.h is no longer necessary

Remove fs_mfs.h from users because it is now unnecessary and don't
generate fs_mfs.h anymore.

Make mfs_initminiroot() mandatory. Allows to remove #ifdef MFS.

Don't generate unused fs_thefs.h headers.

Remove last #ifdef FFS. Do this by making lfs include ffs.
Could use UFS_OPS, but:

1) the lfs kernel module depends on full ffs already anway
2) lfs is being split from ufs, so this will automatically
go away soon
3) chances of anyone wanting an lfs-only kernel are pretty slim
4) i'm too lazy to figure out how to test ffs_snapgone() is
still called properly if I change the call ;)

branches: 1.19.2;
PR kern/26878 FFSv2 + softdep = livelock (no free ram)
PR kern/16942 panic with softdep and quotas
PR kern/19565 panic: softdep_write_inodeblock: indirect pointer #1 mismatch
PR kern/26274 softdep panic: allocdirect_merge: ...
PR kern/26374 Long delay before non-root users can write to softdep partitions
PR kern/28621 1.6.x "vp != NULL" panic in ffs_softdep.c:4653 while unmounting a softdep (+quota) filesystem
PR kern/29513 FFS+Softdep panic with unfsck-able file-corruption
PR kern/31544 The ffs softdep code appears to fail to write dirty bits to disk
PR kern/31981 stopping scsi disk can cause panic (softdep)
PR kern/32116 kernel panic in softdep (assertion failure)
PR kern/32532 softdep_trackbufs deadlock
PR kern/37191 softdep: locking against myself
PR kern/40474 Kernel panic after remounting raid root with softdep

Retire softdep, pass 2. As discussed and later formally announced on the
mailing lists.

branches: 1.18.2; 1.18.8;
Merge the simonb-wapbl branch. From the original branch commit:

Add Wasabi System's WAPBL (Write Ahead Physical Block Logging)
journaling code. Originally written by Darrin B. Jewell while
at Wasabi and updated to -current by Antti Kantee, Andy Doran,
Greg Oster and Simon Burge.

OK'd by core@, releng@.

branches: 1.17.6; 1.17.10; 1.17.12; 1.17.14; 1.17.16;
defflag LFS_KERNEL_RFW (in opt_lfs.h).
Note: lfs_rfw.c doesn't compile if you define the option; locking API fallout?

branches: 1.16.24; 1.16.34; 1.16.36; 1.16.38;
Let ext2fs be built even when none of ffs, lfs and mfs are present.

branches: 1.15.4; 1.15.6;
Separate the (non-working) LFS kernel roll-forward code into its own file,
lfs_rfw.c.

Tell config to generate fs_ffs.h as vfs_bio.c checks for defined(FFS).
Include that header in vfs_bio.c so that bioops are not redefined.

branches: 1.13.4; 1.13.6; 1.13.8; 1.13.10; 1.13.12;
merge ktrace-lwp.

split out lfs_itimes(). It is used in fsck_lfs.

Experimental support for extended attributes on UFS1 file systems, using a
backing file per attribute type indexed by inode number to hold the extended
attributes.

This is working pretty well on my test systems, except for the "autostart"
feature. I need someone with a better handle on the VFS locking protocol
to go over that.

This is a work-in-progress. There are parts of this that could be re-factored
allowing this approach to be used on other types of file systems.

Adapted from FreeBSD.

Defflag UFS_DIRHASH.

branches: 1.9.4;
nuke trailing whitespace

Make `options FFS_NO_SNAPSHOT' only disable snapshot creation
while not trashing existing snapshots.

Approved by: core@

change ffs_snapshot to !ffs_no_snapshot

Make ffs snapshots be enabled by 'option FFS_SNAPSHOT'

Add file system snapshots to kernel configs.

- Ffs internal snapshots get compiled in unconditionally.

- File system snapshot device fss(4) added to all kernel configs that
have a disk. Device is commented out on all non-GENERIC kernels.

Reviewed by: Jason Thorpe <thorpej@netbsd.org>

branches: 1.4.2;
Bring in Ian Dowse's Dirhash from FreeBSD. Hash tables of
directories are created on the fly and used to increase
performance by circumventing ufs_lookup's linear search.

Dirhash is enabled by the UFS_DIRHASH option, but not
by default.

branches: 1.3.4;
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>

branches: 1.2.6;
Add support for the Apple UFS variation on ffs
This is the bulk of PR #17345

The general approach is to use a run time deteriminable value
for DIRBLKSIZ. Additional allowances are included for using
MAXSYMLINKLEN with FS_42INODEFMT and a shift in the cylinder group
cluster summary count array. Support is added for managing
the Apple UFS volume label.

branches: 1.1.6; 1.1.8;
Cleanup how file system configuration information is declared, grouping
related information together, with the file system code itself.

This is just low-hanging fruit -- more to come.

Clean up deleted files.

i hate RISC.

some prototype cleanup, eliminate/replace bogus types (e.g. quad and
u_quad) -> use better types (e.g. quad_t & u_quad_t in inodes),
some cleanup.

Add FS_CLEANFREQ.

branches: 1.3.4;
add rcs ids, and clean up headers where necessary

Add consistent multiple-inclusion protection.

branches: 1.1.1;
Initial revision

Clean up deleted files.

add Yuval Yarom's changes (originally for BSD/386) for advisory record
locking on NFS files. Note that this DOES NOT support network locking,
only local advisory locks.

add rcs ids, and clean up headers where necessary

Add consistent multiple-inclusion protection.

branches: 1.1.1;
Initial revision

Clean up deleted files.

fs types are names now.

Use b_actf, not av_forw.

Canonicalize all #includes.

branches: 1.2.4;
add rcs ids, and clean up headers where necessary

branches: 1.1.1;
Initial revision

Clean up deleted files.

Use b_actf, not av_forw.

mfs_print return type back to 'int'

Canonicalize all #includes.

branches: 1.3.2;
Make mfs_print() return a void to prevent a warning from GCC.

add rcs ids, and clean up headers where necessary

branches: 1.1.1;
Initial revision

Clean up deleted files.

add rcs ids, and clean up headers where necessary

Add consistent multiple-inclusion protection.

branches: 1.1.1;
Initial revision

Clean up deleted files.

mfs_print return type back to 'int'

ws forgot two backslashes (so it tossed his 'cookies')

Changes to VFS readdir semantics
NFS changes for better cookie support
ISOFS changes for better Rockridge support and support for generation numbers

Make mfs_print() return a void to prevent a warning from GCC.

add rcs ids, and clean up headers where necessary

Add consistent multiple-inclusion protection.

branches: 1.1.1;
Initial revision

Clean up deleted files.

SHUT UP!

More prototyping.

add rcs ids, and clean up headers where necessary

Add consistent multiple-inclusion protection.

branches: 1.1.1;
Initial revision

Clean up deleted files.

use a cast b_data for everything

expand uid_t/gid_t/off_t

Canonicalize all #includes.

branches: 1.3.4;
add rcs ids, and clean up headers where necessary

fix from Chris Torek (patch 106):
386BSD inherits a bug from the 4.3 Reno port for contiguous block allocation.

branches: 1.1.1;
Initial revision

Clean up deleted files.

Canonicalize all #includes.

branches: 1.5.2;
incorporate changes from 0-9-base to 0-9-ALPHA

branches: 1.4.2;
add Yuval Yarom's changes (originally for BSD/386) for advisory record
locking on NFS files. Note that this DOES NOT support network locking,
only local advisory locks.

add rcs ids, and clean up headers where necessary

dangling pointer patch for lockf. From pk@cs.few.eur.nl
patch dated Apr 26.

branches: 1.1.1;
Initial revision

Clean up deleted files.

copyright foo

some prototype cleanup, eliminate/replace bogus types (e.g. quad and
u_quad) -> use better types (e.g. quad_t & u_quad_t in inodes),
some cleanup.

expand uid_t/gid_t/off_t

PARANOID --> DIAGNOSTIC for inexpensive tests.

Canonicalize all #includes.

do something better with lookup return values; suggested by BSDI's msdosfs mod

branches: 1.3.4;
add rcs ids, and clean up headers where necessary

make when PARANOID wouldn't work, for mis-remembered field name

branches: 1.1.1;
Initial revision

Clean up deleted files.

some prototype cleanup, eliminate/replace bogus types (e.g. quad and
u_quad) -> use better types (e.g. quad_t & u_quad_t in inodes),
some cleanup.

Convert mount, vnode, and buf structs to use <sys/queue.h>. Also,
some knf and structure frobbing to do along with it.

Canonicalize all #includes.

branches: 1.3.2;
Add RCS identifiers (this time on the correct side of the branch), and
incorporate recent changes in netbsd-0-9 branch.

branches: 1.2.2;
add rcs ids, and clean up headers where necessary

branches: 1.1.1;
Initial revision

Clean up deleted files.

Canonicalize all #includes.

Removed functions moved to libkern: scanc, skpc, locc.

branches: 1.4.2;
sun3 has scanc support, so it doesn't need the ufs_subr.c version
this crud will go away with the usage of libkern

ANSIfications.

add rcs ids, and clean up headers where necessary

branches: 1.1.1;
Initial revision

Clean up deleted files.

Canonicalize all #includes.

branches: 1.2.4;
add rcs ids, and clean up headers where necessary

branches: 1.1.1;
Initial revision

Clean up deleted files.

MIN -> min, MAX -> max

use a cast b_data for everything

put sync printing in one place

copyright foo

new kernel malloc. much better (but slower) diagnostic checking

lots of changes: prototype migration, move lots of variables, definitions,
and structure elements around. kill some unnecessary type and macro
definitions. standardize clock handling. More changes than you'd want.

some prototype cleanup, eliminate/replace bogus types (e.g. quad and
u_quad) -> use better types (e.g. quad_t & u_quad_t in inodes),
some cleanup.

make fs types consistent over new kernels. also, some proto foo.

Convert mount, vnode, and buf structs to use <sys/queue.h>. Also,
some knf and structure frobbing to do along with it.

fs types are names now.

Make FFS optional

Remove the last dependencies on DEV_BSIZE in the ufs code.

quiet a compiler warning

Canonicalize all #includes.

new specfs.h and fifo.h locations

branches: 1.3.2;
Changes to VFS readdir semantics
NFS changes for better cookie support
ISOFS changes for better Rockridge support and support for generation numbers

add rcs ids, and clean up headers where necessary

branches: 1.1.1;
Initial revision

Clean up deleted files.

Make FFS optional

Clean up deleted files.

expand uid_t/gid_t/off_t

branches: 1.3.4;
add rcs ids, and clean up headers where necessary

Add consistent multiple-inclusion protection.

branches: 1.1.1;
Initial revision

fix various typos, mainly in comments.

s/static inline/static __inline/g for consistency.

branches: 1.9.16;
Change chfs from hashlist to vcache.

branches: 1.8.14;
CHFS comments

branches: 1.7.2;
chfs bugfix [node was obsoleted twice]

branches: 1.6.2;
prepare for chfs's makefs

using chtype on media instead of vtype
debug.c deleted

branches: 1.4.2;
cleanup, some style and remove leftover code

disable dbg messages (they break the build on amd64)

fix build failure on amd64 due to incorrect format string

Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

CHFS comments

branches: 1.1.6; 1.1.10;
Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

Release mutexes in few more places on failure path. Reviewed them in chfs code after fixing PR kern/56242.
ok riastradh

branches: 1.5.54;
CHFS comments

branches: 1.4.2;
chfs bugfix [node was obsoleted twice]

branches: 1.3.2;
using chtype on media instead of vtype
debug.c deleted

branches: 1.2.2;
i missed a file - quick workaround for compilation bugs on amd64

Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

CHFS comments

branches: 1.1.6; 1.1.10;
Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

fix typos in word "instead", mainly in log messages.

NFC - if/else blocks start with the same mutex_exit, just move it up.

Fix incorrect function name, some grammar and typos in comments. Remove trailing tab symbol.
No functional change intended.

branches: 1.9.26;
remove checks for failure after memory allocation calls that cannot fail:

kmem_alloc() with KM_SLEEP
kmem_zalloc() with KM_SLEEP
percpu_alloc()
pserialize_create()
psref_class_create()

all of these paths include an assertion that the allocation has not failed,
so callers should not assert that again.

Convert a bogus mnt_vnodelist traversal to vfs_vnode_iterator.

branches: 1.7.2;
Timestamps are bad sources of entropy, so just use cprng_fast32.

Plug memory leak in error returns and normal operation in
chfs_gcollect_pristine().

branches: 1.5.4;
remove unused

branches: 1.4.2;
CHFS comments

branches: 1.3.2;
chfs bugfix [node was obsoleted twice]

branches: 1.2.6;
quick workaround to make this compile, with thanks to Hisashi Fujinaka for the
nudge.

Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

Change chfs from hashlist to vcache.

branches: 1.3.6;
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

branches: 1.2.2;
CHFS comments

branches: 1.1.6; 1.1.10;
Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

Change chfs from hashlist to vcache.

branches: 1.9.4;
Fix previous. Anyone have a brown paper bag?

Remove lfs-only inode flags.

branches: 1.7.10;
Stuff UFS_ in front of a few of ufs's symbols to reduce namespace
pollution. Specifically:
ROOTINO -> UFS_ROOTINO
WINO -> UFS_WINO
NXADDR -> UFS_NXADDR
NDADDR -> UFS_NDADDR
NIADDR -> UFS_NIADDR
MAXSYMLINKLEN -> UFS_MAXSYMLINKLEN
MAXSYMLINKLEN_UFS[12] -> UFS[12]_MAXSYMLINKLEN (for consistency)

Sort out ext2fs's misuse of NDADDR and NIADDR; fortunately, these have
the same values in ext2fs and ffs.

No functional change intended.

CHFS comments

branches: 1.5.2;
Don't depend on implicit enum casts, be explicit.

branches: 1.4.2;
prepare for chfs's makefs

using chtype on media instead of vtype
debug.c deleted

Make this compile again. From Paul Fleischer.

branches: 1.1.2; 1.1.4;
Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

fix various typos, mainly in comments.

Fix build without DIAGNOSTIC

branches: 1.5.4;
use PR_WAITOK everywhere.

branches: 1.4.30;
CHFS comments

branches: 1.3.2;
chfs bugfix [node was obsoleted twice]

branches: 1.2.2;
Make this compile again. From Paul Fleischer.

branches: 1.1.2; 1.1.4;
Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

fix various typos, mainly in comments.

Fix typo ("then" instead of "than")

branches: 1.3.2;
CHFS comments

branches: 1.2.2;
chfs bugfix [node was obsoleted twice]

branches: 1.1.6;
Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

Round of uvm.h cleanup.

The poorly named uvm.h is generally supposed to be for uvm-internal
users only.

- Narrow it to files that actually need it -- mostly files that need
to query whether curlwp is the pagedaemon, which should maybe be
exposed by an external header.

- Use uvm_extern.h where feasible and uvm_*.h for things not exposed
by it. We should split up uvm_extern.h but this will serve for now
to reduce the uvm.h dependencies.

- Use uvm_stat.h and #ifdef UVMHIST uvm.h for files that use
UVMHIST(ubchist), since ubchist is declared in uvm.h but the
reference evaporates if UVMHIST is not defined, so we reduce header
file dependencies.

- Make uvm_device.h and uvm_swap.h independently includable while
here.

ok chs@

Fix build without DIAGNOSTIC

branches: 1.3.4;
Drop commended out include to a hardcoded path in root's home directory.

branches: 1.2.2;
Make this compile again. From Paul Fleischer.

branches: 1.1.2; 1.1.4;
Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

branches: 1.1.6;
Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

s/postion/position/

s/occured/occurred/ in comments, log messages and man pages.

Make sure that mutex is released before conditional return statements. Fixes PR kern/56242
ok riastradh

branches: 1.10.26;
remove checks for failure after memory allocation calls that cannot fail:

kmem_alloc() with KM_SLEEP
kmem_zalloc() with KM_SLEEP
percpu_alloc()
pserialize_create()
psref_class_create()

all of these paths include an assertion that the allocation has not failed,
so callers should not assert that again.

branches: 1.9.2;
Plug memory leak in a corner case in chfs_get_data_nodes().

branches: 1.8.4;
remove unused

branches: 1.7.2;
Fix a typo in debug output.

CHFS comments

branches: 1.5.2;
chfs: fixed truncating

chfs fixes
1. nodes are obsoleted only once during truncating a file
2. frags don't stay in pool_cache

chfs bugfix [node was obsoleted twice]

branches: 1.2.6;
quick workaround to make this compile, with thanks to Hisashi Fujinaka for the
nudge.

Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

Fix incorrect function name, some grammar and typos in comments. Remove trailing tab symbol.
No functional change intended.

Make sure that mutex is released before conditional return statements. Fixes PR kern/56242
ok riastradh

branches: 1.8.14;
Fix build without DIAGNOSTIC

branches: 1.7.10;
remove checks for failure after memory allocation calls that cannot fail:

kmem_alloc() with KM_SLEEP
kmem_zalloc() with KM_SLEEP
percpu_alloc()
pserialize_create()
psref_class_create()

all of these paths include an assertion that the allocation has not failed,
so callers should not assert that again.

fix buf leak. Reported by:
http://www.m00nbsd.net/ae123a9bae03f7dde5c6d654412daf5a.html#Report-4

branches: 1.5.2;
Plug leak in chfs_scan_eraseblock() of the allocated buffer.
Make sure to release it both on success and failure returns.
OK'ed by ttoth@

branches: 1.4.12;
CHFS comments

branches: 1.3.2;
chfs bugfix [node was obsoleted twice]

branches: 1.2.6;
quick workaround to make this compile, with thanks to Hisashi Fujinaka for the
nudge.

Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

Round of uvm.h cleanup.

The poorly named uvm.h is generally supposed to be for uvm-internal
users only.

- Narrow it to files that actually need it -- mostly files that need
to query whether curlwp is the pagedaemon, which should maybe be
exposed by an external header.

- Use uvm_extern.h where feasible and uvm_*.h for things not exposed
by it. We should split up uvm_extern.h but this will serve for now
to reduce the uvm.h dependencies.

- Use uvm_stat.h and #ifdef UVMHIST uvm.h for files that use
UVMHIST(ubchist), since ubchist is declared in uvm.h but the
reference evaporates if UVMHIST is not defined, so we reduce header
file dependencies.

- Make uvm_device.h and uvm_swap.h independently includable while
here.

ok chs@

uvm_availmem(): give it a boolean argument to specify whether a recent
cached value will do, or if the very latest total must be fetched. It can
be called thousands of times a second and fetching the totals impacts not
only the calling LWP but other CPUs doing unrelated activity in the VM
system.

Add ACL support for FFS. From FreeBSD.

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.

branches: 1.11.6;
Rename uvm_free() -> uvm_availmem().

uvmexp.free -> uvm_free()

branches: 1.9.30;
remove unused

branches: 1.8.2;
CHFS comments

branches: 1.7.2;
chfs: fixed truncating

chfs fixes
1. nodes are obsoleted only once during truncating a file
2. frags don't stay in pool_cache

chfs bugfix [node was obsoleted twice]

branches: 1.4.2;
using chtype on media instead of vtype
debug.c deleted

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.

branches: 1.2.2;
quick workaround to make this compile, with thanks to Hisashi Fujinaka for the
nudge.

Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

fix few typos in comments.

branches: 1.23.10;
Remove now unused VV_LOCKSWORK, all file systems support locking.

Remove unused predicates vn_locked() and vn_anylocked().

Welcome to 9.99.95

Round of uvm.h cleanup.

The poorly named uvm.h is generally supposed to be for uvm-internal
users only.

- Narrow it to files that actually need it -- mostly files that need
to query whether curlwp is the pagedaemon, which should maybe be
exposed by an external header.

- Use uvm_extern.h where feasible and uvm_*.h for things not exposed
by it. We should split up uvm_extern.h but this will serve for now
to reduce the uvm.h dependencies.

- Use uvm_stat.h and #ifdef UVMHIST uvm.h for files that use
UVMHIST(ubchist), since ubchist is declared in uvm.h but the
reference evaporates if UVMHIST is not defined, so we reduce header
file dependencies.

- Make uvm_device.h and uvm_swap.h independently includable while
here.

ok chs@

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.

branches: 1.20.2;
s/inital/initial/

Split the ufs code out of the ffs module and into its own module.

Adapt chfs and ext2fs modules accordingly.

branches: 1.18.2;
add a genfs method to allow a file system to limit the range of pages
that are given to a single GOP_WRITE() call. needed by ZFS.

branches: 1.17.2;
Fix up chfs_mountfs error branches.

branches: 1.16.4;
Add generic genfs_suspendctl() and use it for all file systems.
Layered file systems need work.

branches: 1.15.2; 1.15.4;
Change chfs from hashlist to vcache.

branches: 1.14.2;
Do not uselessly include <sys/malloc.h>.

simplify.

Memory leak.

Found by my code scanner.

ok christos@

branches: 1.11.2;
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@

branches: 1.10.2;
Change all vfsops to use C99 designated initializers.

No functional changes intended.

remove unused

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>

branches: 1.7.2;
Stuff UFS_ in front of a few of ufs's symbols to reduce namespace
pollution. Specifically:
ROOTINO -> UFS_ROOTINO
WINO -> UFS_WINO
NXADDR -> UFS_NXADDR
NDADDR -> UFS_NDADDR
NIADDR -> UFS_NIADDR
MAXSYMLINKLEN -> UFS_MAXSYMLINKLEN
MAXSYMLINKLEN_UFS[12] -> UFS[12]_MAXSYMLINKLEN (for consistency)

Sort out ext2fs's misuse of NDADDR and NIADDR; fortunately, these have
the same values in ext2fs and ffs.

No functional change intended.

CHFS comments

branches: 1.5.2;
chfs bugfix [node was obsoleted twice]

- Replace some malloc(9) uses with kmem(9).
- G/C M_IPMOPTS, M_IPMADDR and M_BWMETER.

branches: 1.3.2;
using chtype on media instead of vtype
debug.c deleted

branches: 1.2.2; 1.2.4; 1.2.8; 1.2.10;
quick workaround to make this compile, with thanks to Hisashi Fujinaka for the
nudge.

Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

fix typos in word "instead", mainly in log messages.

Add ACL support for FFS. From FreeBSD.

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.

branches: 1.17.2;
fix compilation

Add newly created vnodes to the namei cache. The rest of the filesystems
already did that (or they don't support writing). Discussed in tech-kern.

branches: 1.15.14;
KASSERT(mutex_owned(vp->v_interlock)) in vnode iterator selector.

branches: 1.14.2; 1.14.4;
Change chfs from hashlist to vcache.

Convert a bogus mnt_vnodelist traversal to vfs_vnode_iterator.

branches: 1.12.2;
Do not uselessly include <sys/malloc.h>.

Plug memory leaks in error returns in chfs_readvnode().

branches: 1.10.4;
Change vnode operations create, mknod, mkdir and symlink to return
the resulting vnode *vpp unlocked.

Discussed on tech-kern@

Welcome to 6.99.30

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

branches: 1.8.2;
CHFS comments

branches: 1.7.2;
chfs fixes
1. nodes are obsoleted only once during truncating a file
2. frags don't stay in pool_cache

chfs bugfix [node was obsoleted twice]

branches: 1.5.2;
prepare for chfs's makefs

using chtype on media instead of vtype
debug.c deleted

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.

branches: 1.2.2;
quick workaround to make this compile, with thanks to Hisashi Fujinaka for the
nudge.

Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

CHFS comments

branches: 1.2.2;
chfs bugfix [node was obsoleted twice]

branches: 1.1.6;
Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

add a kauth vnode check for creating links

fix various typos, mainly in comments.

Overhaul of the EVFILT_VNODE kevent(2) filter:

- Centralize vnode kevent handling in the VOP_*() wrappers, rather than
forcing each individual file system to deal with it (except VOP_RENAME(),
because VOP_RENAME() is a mess and we currently have 2 different ways
of handling it; at least it's reasonably well-centralized in the "new"
way).
- Add support for NOTE_OPEN, NOTE_CLOSE, NOTE_CLOSE_WRITE, and NOTE_READ,
compatible with the same events in FreeBSD.
- Track which kevent notifications clients are interested in receiving
to avoid doing work for events no one cares about (avoiding, e.g.
taking locks and traversing the klist to send a NOTE_WRITE when
someone is merely watching for a file to be deleted, for example).

In support of the above:

- Add support in vnode_if.sh for specifying PRE- and POST-op handlers,
to be invoked before and after vop_pre() and vop_post(), respectively.
Basic idea from FreeBSD, but implemented differently.
- Add support in vnode_if.sh for specifying CONTEXT fields in the
vop_*_args structures. These context fields are used to convey information
between the file system VOP function and the VOP wrapper, but do not
occupy an argument slot in the VOP_*() call itself. These context fields
are initialized and subsequently interpreted by PRE- and POST-op handlers.
- Version VOP_REMOVE(), uses the a context field for the file system to report
back the resulting link count of the target vnode. Return this in tmpfs,
udf, nfs, chfs, ext2fs, lfs, and ufs.

NetBSD 9.99.92.

Use macros for the canned parts of device and fifo vnode op tables.

Add GENFS_SPECOP_ENTRIES and GENFS_FIFOOP_ENTRIES macros that contain
the portion of the vnode ops table declaration that is
(conservatively) the same in every fs. Use these in every fs that
supports devices and/or fifos with separate ops tables.

Note that ptyfs works differently (it has one type of vnode with
open-coded dispatch to the specfs code, which I haven't changed in
this commit) and rump/librump/rumpvfs/rumpfs.c has an indirect dynamic
dispatch that already does more or less the same thing, which I also
haven't changed.

Also note that this anticipates a few bits in the next changeset here
and there, and adds missing but unreachable calls in some cases (e.g.
most fses weren't defining whiteout on devices and fifos, but it isn't
reachable there), and it changes parsepath on devices and fifos to
genfs_badop from genfs_parsepath (but it's not reachable there
either).

It appears that devices in kernfs were missing kqfilter, so it's
possible that if you try to use kqueue on /kern/rootdev that it'll
explode.

And finally note that the ops declaration tables aren't
order-dependent. (Other than vop_default_desc has to come first.)
Otherwise this wouldn't work.

whitespace

- 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.

branches: 1.42.6;
Round of uvm.h cleanup.

The poorly named uvm.h is generally supposed to be for uvm-internal
users only.

- Narrow it to files that actually need it -- mostly files that need
to query whether curlwp is the pagedaemon, which should maybe be
exposed by an external header.

- Use uvm_extern.h where feasible and uvm_*.h for things not exposed
by it. We should split up uvm_extern.h but this will serve for now
to reduce the uvm.h dependencies.

- Use uvm_stat.h and #ifdef UVMHIST uvm.h for files that use
UVMHIST(ubchist), since ubchist is declared in uvm.h but the
reference evaporates if UVMHIST is not defined, so we reduce header
file dependencies.

- Make uvm_device.h and uvm_swap.h independently includable while
here.

ok chs@

Move proc_lock into the data segment. It was dynamically allocated because
at the time we had mutex_obj_alloc() but not __cacheline_aligned.

fix accessx confusion (thanks hannken@)

Add ACL support for FFS. From FreeBSD.

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.

branches: 1.37.2;
Merge the remaining changes from the ad-namecache branch, affecting namei()
and getcwd():

- push vnode locking back as far as possible.
- do most lookups directly in the namecache, avoiding vnode locks & refs.
- don't block new refs to vnodes across VOP_INACTIVE().
- get shared locks for VOP_LOOKUP() if the file system supports it.
- correct lock types for VOP_ACCESS() / VOP_GETATTR() in a few places.

Possible future enhancements:

- make the lookups lockless.
- support dotdot lookups by being lockless and inferring absence of chroot.
- maybe make it work for layered file systems.
- avoid vnode references at the root & cwd.

UVM locking changes, proposed on tech-kern:

- Change the lock on uvm_object, vm_amap and vm_anon to be a RW lock.
- Break v_interlock and vmobjlock apart. v_interlock remains a mutex.
- Do partial PV list locking in the x86 pmap. Others to follow later.

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.

branches: 1.34.4;
Fix build without DIAGNOSTIC

branches: 1.33.10;
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.

Change VOP_REMOVE and VOP_RMDIR to preserve lock/ref on dvp.

No change to vp -- the plan is to replace the node by the
componentname in the vop parameters, and let all directory vops do
lookups internally.

Proposed on tech-kern with no objections:
https://mail-index.netbsd.org/tech-kern/2017/04/17/msg021825.html

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!

Remove now redundant calls to fstrans_start()/fstrans_done().

branches: 1.29.2;
Remove now obsolete operation vcache_remove().

Welcome to 7.99.36

branches: 1.28.2;
Make VOP_LINK return directory still locked and referenced.

Ride 7.99.10 bump.

Remove the 'cred' argument from bread(). Remove a now unused var in
ffs_snapshot.c. Update the man page accordingly.

ok hannken@

Remove the 'cred' argument from breadn(), and update the man page
accordingly.

ok hannken@

Disentangle buffer-cached I/O from page-cached I/O in UFS.

Page-cached I/O is used for regular files, and is initiated by VFS
users such as userland and NFS.

Buffer-cached I/O is used for directories and symlinks, and is issued
only internally by UFS.

New UFS routine ufs_bufio replaces vn_rdwr for internal use.
ufs_bufio is implemented by new UFS operations uo_bufrd/uo_bufwr,
which sit in ufs_readwrite.c alongside the VOP_READ/VOP_WRITE
implementations.

I preserved the code as much as possible and will leave further
simplification for future commits. I kept the ulfs_readwrite.c
copypasta close to ufs_readwrite.c in case we ever want to merge them
back; likewise ext2fs_readwrite.c.

No externally visible semantic change. All atf fs tests still pass.

Change chfs from hashlist to vcache.

Return immediately from successfull cache_lookup().
No need to unlock an unlocked vnode.

branches: 1.22.4;
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.

branches: 1.21.2;
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

Change vnode operations create, mknod, mkdir and symlink to return
the resulting vnode *vpp unlocked.

Discussed on tech-kern@

Welcome to 6.99.30

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

remove unused

branches: 1.17.2;
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

blkoff -> chfs_blkoff
blksize -> chfs_blksize

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@)

Stuff UFS_ in front of a few of ufs's symbols to reduce namespace
pollution. Specifically:
ROOTINO -> UFS_ROOTINO
WINO -> UFS_WINO
NXADDR -> UFS_NXADDR
NDADDR -> UFS_NDADDR
NIADDR -> UFS_NIADDR
MAXSYMLINKLEN -> UFS_MAXSYMLINKLEN
MAXSYMLINKLEN_UFS[12] -> UFS[12]_MAXSYMLINKLEN (for consistency)

Sort out ext2fs's misuse of NDADDR and NIADDR; fortunately, these have
the same values in ext2fs and ffs.

No functional change intended.

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.

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.

CHFS comments

branches: 1.10.2;
chfs: uappnd flag patch

chfs bugfix [node was obsoleted twice]

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@.

change vflushbuf() to take the full FSYNC_* flags.
translate FSYNC_LAZY into PGO_LAZY for VOP_PUTPAGES() so that
genfs_do_io() can set the appropriate io priority for the I/O.
this is the first part of addressing PR 46325.

Don't depend on implicit enum casts, be explicit.

it is not an error if the kernel needs to clear the setuid/
setgid bit on write/chown/chgrp

branches: 1.4.2;
using chtype on media instead of vtype
debug.c deleted

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.

branches: 1.2.2; 1.2.4;
quick workaround to make this compile, with thanks to Hisashi Fujinaka for the
nudge.

Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

src is too big these days to tolerate superfluous apostrophes. It's
"its", people!

More alignment spellos

branches: 1.5.2;
CHFS comments

branches: 1.4.4; 1.4.8;
use enum instead of macros
add some input validation
cleanup

cleanup macros

branches: 1.2.2;
quick workaround for compilation bug on amd64

Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

fix various typos, mainly in comments.

Release mutexes in few more places on failure path. Reviewed them in chfs code after fixing PR kern/56242.
ok riastradh

branches: 1.5.54;
CHFS comments

branches: 1.4.2;
chfs bugfix [node was obsoleted twice]

branches: 1.3.2;
using chtype on media instead of vtype
debug.c deleted

branches: 1.2.2;
quick workaround to make this compile, with thanks to Hisashi Fujinaka for the
nudge.

Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

using chtype on media instead of vtype
debug.c deleted

branches: 1.1.2;
Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

branches: 1.2.2;
using chtype on media instead of vtype
debug.c deleted

branches: 1.1.2;
Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

s/eraseing/erasing/ and couple more typos in debug messages and comments.

branches: 1.10.6;
s/succes/success/ in comments.

fix various typos, mainly in comments.

s/fist/first/

Remove unnecessary assertions

KASSERT(!rw_lock_held()) just before rw_destroy() is useless because
rw_destroy does more strict check and provides better information on
failure.

fix leak. Reported by:
http://www.m00nbsd.net/ae123a9bae03f7dde5c6d654412daf5a.html#Report-4

branches: 1.5.2;
src is too big these days to tolerate superfluous apostrophes. It's
"its", people!

Plug memory leak in add_peb_to_free() and add_peb_to_in_use()
in case there's a duplicate in the tree.

branches: 1.3.2; 1.3.14;
chfs bugfix [node was obsoleted twice]

branches: 1.2.6;
Don't shadow some stupid function defined globally in random platforms.

Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

s/eraseing/erasing/ and couple more typos in debug messages and comments.

branches: 1.4.52;
typo in comment

branches: 1.3.14;
CHFS comments

branches: 1.2.2; 1.2.4;
prepare for chfs's makefs

branches: 1.1.2;
Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

fix typos in word "successfully", mainly s/succesfully/successfully/.

branches: 1.1.6;
Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

CHFS comments

branches: 1.1.6; 1.1.10;
Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

s/enrty/entry/

CHFS comments

branches: 1.1.6; 1.1.10;
Import CHFS, which was formerly known as ChewieFS.

CHFS is a file system for flash devices developed by the
Software Engineering Department at University of Szeged, Hungary.

http://chewiefs.sed.hu/

Thanks for all who made it possible.

Revert previous - which itself (incorrectly) reverted the previous
changes, breaking the build.

More htree writing support (Hrishikesh Goyal GSoC 2016)

Install new header and fix rump to include the corresponding source as
well.

branches: 1.1.198; 1.1.218;
Rework the way kernel include files are installed. In the new method,
as with user-land programs, include files are installed by each directory
in the tree that has includes to install. (This allows more flexibility
as to what gets installed, makes 'partial installs' easier, and gives us
more options as to which machines' includes get installed at any given
time.) The old SYS_INCLUDES={symlinks,copies} behaviours are _both_
still supported, though at least one bug in the 'symlinks' case is
fixed by this change. Include files can't be build before installation,
so directories that have includes as targets (e.g. dev/pci) have to move
those targets into a different Makefile.

ext2fs.h: avoid adjacent commas in unsupported features

A question mark still stands out enough to be noticeable.

Noticed by lint.

branches: 1.52.6;
- fix cgload/cgsave inconsistencies
- add a constant for the rev 0 group descriptor size

ext2fs: Nix trailing whitespace.

ext2fs.h: Restore e2fs_cgload/cgsave for libsa and userland use.

Stop-gap until they can be taught to handle the new version that was
moved to ext2fs_vfsops.c, presumably.

Support INCOMPAT_64BIT on ext4 (Vladimir 'phcoder' Serbinenko)

add support for GDT_CSUM AKA uninit_bg feature

EXT2F_INCOMPAT_FLEX_BG feature actually doesn't require any explicit
code changes, all magic is done by setting the block offsets appropriately
in group descriptors by newfs; add it to the list of supported INCOMPAT flags

bump link limit to 65000 for files, and add support for EXT2F_ROCOMPAT_DIR_NLINK to make link count unlimited for directories

switch ext2fs_htree_has_idx() over to EXT2F_HAS_COMPAT_FEATURE() and remove EXT2F_HAS_COMPAT_FEATURE() - this also fixes it for BE machines, as EXT2F_HAS_COMPAT_FEATURE() did extra byte swap; also remove XXX comment about IN_E3INDEX

add EXT2F_HAS_ROCOMPAT_FEATURE() macro, and change the current EXT2F_HAS_{COMPAT|INCOMPAT}_FEATURE() to take fs as first parameter

sprinkle ()s in macros with comparisons, shuts up compiler warnings

add support for extended attributes in ext2fs for ext3/ext4; read-only for now

add defines for the missing ext4 feature flags

rename struct ext2fs_dinode attribute e2di_dacl to correct
e2di_size_high; even Linux ext2 filesystem code actually uses it
unconditionally this way and ext4 code finally also calls it that way
in their struct definition too; if there was any trace of this for other
purpose it's long gone

support arbitrary ext3/ext4 inode size, add all the new ext4 fields ext2fs_dinode, and add support for loading the extra inode data

branches: 1.38.2;
GSoC 2016 (Hrishikesh Goyal): Htree index support from FreeBSD

Add ext4 extent support from GSoC 2016 (Hrishikesh Goyal), from the FreeBSD
ext2 code.

branches: 1.36.10;
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

fsbtodb() -> FFS_FSBTODB(), EXT2_FSBTODB(), or MFS_FSBTODB()
dbtofsb() -> FFS_DBTOFSB() or EXT2_DBTOFSB()

(Christos already did the lfs ones a few days back)

Rename ambiguous macros:
MAXDIRSIZE -> UFS_MAXDIRSIZE or LFS_MAXDIRSIZE
NINDIR -> FFS_NINDIR, EXT2_NINDIR, LFS_NINDIR, or MFS_NINDIR
INOPB -> FFS_INOPB, LFS_INOPB
INOPF -> FFS_INOPF, LFS_INOPF
blksize -> ffs_blksize, ext2_blksize, or lfs_blksize
sblksize -> ffs_blksize

These are not the only ambiguously defined filesystem macros, of
course, there's a pile more. I may not have found all the ambiguous
definitions of blksize(), too, as there are a lot of other things
called 'blksize' in the system.

Write support for the Ext4 Read-only Compatible Feature "huge_file".

Primarily, this feature extends the inode block count field to 48 bits.
Additionally, this feature allows this field to be represented in file
system block size units rather than DEV_BSIZE units.

Add various newer Ext2 superblock feature bits and inode flag bits.

snprintb EXT2F_ROCOMPAT_SPARSESUPER as such.

branches: 1.30.2;
really print the incompatible bits.

branches: 1.29.12;
Add definitions for more reserved inodes.

Remove closes 3 & 4 from my licence. Lots of thanks to Soren Jacobsen
for the booring work !

Migrate from u_intNN_t to uintNN_t.

branches: 1.26.10;
Convert many of the uses of __attribute__ to equivalent
__packed, __unused and __dead macros from cdefs.h

branches: 1.25.2; 1.25.6;
Misc cosmetics.

Add some definitions for resizefs features.

- add some more constant definitions
- add some comments
- typo and some cosmetics

branches: 1.22.38; 1.22.40; 1.22.44; 1.22.46;
Change "inline" back to "__inline" in .h files -- C99 is still too
new, and some apps compile things in C89 mode. C89 keywords stay.

As per core@.

branches: 1.21.2; 1.21.4;
Make almost everything #include <sys/bswap.h> instead of <machine/bswap.h>
The bswap.h and endian.h files are all rather incestuous, but I want to
get the constant folding stuff into one place - sys/bswap.h

branches: 1.20.2;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

merge ktrace-lwp.

* Remove __P()
* Use ANSI function declarations on ext2fs and mfs

branches: 1.17.4;
nuke trailing whitespace

Add support for large files (>2GB).
Like Linux, automagically convert old filesystem to use this,
if they are already at revision 1.
For revision 0, just punt (unlike Linux; makes me a bit too nervous.)

There should be an option to fsck_ext2fs to upgrade revision 0 to revision 1.

Reviewd by Manuel (bouyer@).

branches: 1.15.8; 1.15.10;
Fix disclaimer in my copyright. Pointed out by Thomas Klausner.

Remove references to University of California from my copyright notices.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.12.2;
Bump daddr_t to 64 bits. Replace it with int32_t in all places where
it was used on-disk, so that on-disk formats remain the same.
Remove ufs_daddr_t and ufs_lbn_t for the time being.

Add multiple inclusion protection for headers. Fix mismatched
variable declarations (missing const's) as needed.

branches: 1.10.6;
Correct (minor) bogons in filetype option support, and add support
for sparse_super option

First cut at ext2fs rev 1 support (as of mke2fs 1.18): supports the filetype
option read/write and the sparse option read-only.

branches: 1.8.2; 1.8.8; 1.8.14;
Some new fields in the ext2fs superblock, from Tim Shepard.
While I'm there, reformat this file a bit.

Move the bswap functions from libutil to libc (this bups the
minor of libc and the major of libutil). For little-endian architectures
merge the bnswap() assembly versions with nto* and hton* using symbols
aliasing. Use symbol renaming for the bswap function in this case to avoid
namespace pollution.
Declare bswap* in machine/bswap.h, not machine/endian.h. For little-endian
machines, common code for inline macros go in machine/byte_swap.h
Sync libkern with libc.
Adjust #include in kernel sources for machine/bswap.h.

Not time to #include <machine/bswap.h>m, it will come with the move
of bswap*() from libutil to libc. Sorry !

#include opt_uvm.h only if _KENREL and !_LKM
Make ext2fs_init() call ufs_init(). it was doing the init by itself,
testing for extern done != 0. This bug was hidden by the fact that
ext2fs_init() is called before ffs_init().

bzero->memset, bcopy->memcpy, bcmp->memcmp

Merge with Lite2 + local changes

Add byte-swapping functions (bswap16, bswap32, bswap64) to libkern.
Only assembly version for i386 bswap16 and bswap32 for now (bswap64 uses
bswap32). Contribution of assembly versions of these are welcome.
Add byte-swapping of ext2fs metadata for big-endian systems.
Tested on i386 and sparc.

branches: 1.1.4;
The ext2fs layer, based on the ffs/ufs one. Uses a few functions from
sys/ufs/ufs/

s/quadradically/quadratically/ in comments.

branches: 1.58.2;
fix recently committed typos by msaitoh in few more places, as well as few more.
mainly s/contigous/contiguous/ and s/miliseconds/milliseconds/ in comments.

s/contigous/contiguous/ in comment.

fix incorrect test

Fix metadata_cksum (Vladimir Serbinenko)

Current code always assumes that CG uses crc16. Yet when metadata_cksum is
enabled then it uses truncated crc32c. This patch doesn't implement full
metadata_cksum, just allows volumes with metadata_cksum to be mounted
read-only.

ext2fs: Nix trailing whitespace.

Support INCOMPAT_64BIT on ext4 (Vladimir 'phcoder' Serbinenko)

Change ext2fs to use vcache_new like we did for ffs:
- Change ext2fs_valloc to return an inode number.
- Make ext2fs_makeinode private to ext2fs_vnops.c and
pass vattr instead of mode.

modify the comment to note code needs to brele() to have a shot on actually
working

#if 0 the check for ext2fs_mapsearch() failure (similar what was done
for ffs counterpart), it actually never fails, it panics instead

add support for GDT_CSUM AKA uninit_bg feature

KNF, no functional changes...

support arbitrary ext3/ext4 inode size, add all the new ext4 fields ext2fs_dinode, and add support for loading the extra inode data

branches: 1.46.2;
Remove the 'cred' argument from bread(). Remove a now unused var in
ffs_snapshot.c. Update the man page accordingly.

ok hannken@

branches: 1.45.10;
fsbtodb() -> FFS_FSBTODB(), EXT2_FSBTODB(), or MFS_FSBTODB()
dbtofsb() -> FFS_DBTOFSB() or EXT2_DBTOFSB()

(Christos already did the lfs ones a few days back)

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)

Write support for the Ext4 Read-only Compatible Feature "huge_file".

Primarily, this feature extends the inode block count field to 48 bits.
Additionally, this feature allows this field to be represented in file
system block size units rather than DEV_BSIZE units.

branches: 1.42.4; 1.42.14;
{ffs_nodealloccg,ext2fs_nodealloccg,ext2fs_mapsearch}: use XOR and ffs()
to find free bits in the inode and block bitmaps, instead of the loop.

Obtained from FreeBSD (changes by jhb).

branches: 1.41.4; 1.41.6;
Remove closes 3 & 4 from my licence. Lots of thanks to Soren Jacobsen
for the booring work !

Whitespace nits.

Introduce several actions/requests for authorizing file-system related
operations, specifically quota and block allocation from reserved space.

Modify ufs_quotactl() to accomodate passing "mp" earlier by vfs_busy()ing
it a little bit higher.

Mailing list reference:

http://mail-index.netbsd.org/tech-kern/2009/04/26/msg004936.html

Note that the umapfs request mentioned in this thread was NOT added as
there is still on-going discussion regarding the proper implementation.

branches: 1.38.2;
merge christos-time_t

add support for 32 bit uid/gid fields in ext2, but only do so for
when the revision is > REV0.

branches: 1.36.4; 1.36.6; 1.36.8;
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>

branches: 1.35.6; 1.35.18; 1.35.20; 1.35.22; 1.35.24; 1.35.26;
Merge ffs locking & brelse changes from the vmlocking branch.

branches: 1.34.6; 1.34.18; 1.34.20; 1.34.22;
Consistent usage of KAUTH_GENERIC_ISSUSER.

several ext2fs fixes provided by Barry Bouwsma:
- set ip->i_e2fs_dtime to time_second, not time_uptime.
- don't allow ipref to go negative
- fs->e2fs.e2fs_icount is a valid inode number, allow it.

branches: 1.32.2;
__unused removal on arguments; approved by core.

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

branches: 1.30.6; 1.30.8;
merge FreeBSD timecounters from branch simonb-timecounters
- struct timeval time is gone
time.tv_sec -> time_second
- struct timeval mono_time is gone
mono_time.tv_sec -> time_uptime
- access to time via
{get,}{micro,nano,bin}time()
get* versions are fast but less precise
- support NTP nanokernel implementation (NTP API 4)
- further reading:
Timecounter Paper: http://phk.freebsd.dk/pubs/timecounter.pdf
NTP Nanokernel: http://www.eecis.udel.edu/~mills/ntp/html/kern.html

branches: 1.29.2;
integrate kauth.

branches: 1.28.4; 1.28.6; 1.28.8; 1.28.10; 1.28.12;
merge ktrace-lwp.

merge yamt-vop branch. remove following VOPs.

VOP_BLKATOFF
VOP_VALLOC
VOP_BALLOC
VOP_REALLOCBLKS
VOP_VFREE
VOP_TRUNCATE
VOP_UPDATE

branches: 1.26.2;
* Remove __P()
* Use ANSI function declarations on ext2fs and mfs

64 bit inode changes.

branches: 1.24.2;
- sprinkle const
- avoid shadow variables.

nuke trailing whitespace

branches: 1.22.8; 1.22.10;
Fix disclaimer in my copyright. Pointed out by Thomas Klausner.

Remove references to University of California from my copyright notices.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.19.2;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

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.

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

More ufs2 merge fall-out. Pass the correct pointer to the dinode
for clearing. Fixes PR#21241.

Bump daddr_t to 64 bits. Replace it with int32_t in all places where
it was used on-disk, so that on-disk formats remain the same.
Remove ufs_daddr_t and ufs_lbn_t for the time being.

remove trailing \n in panic(). approved perry.

add RCSID

remove #include <ufs/ufs/quota.h> where it was just to appease
<ufs/ufs/inode.h>, since the latter now includes the former. leave the former
in source that obviously uses specific bits of it (for completeness.)

branches: 1.11.4;
heirarchy -> hierarchy

branches: 1.10.2;
Fix typo. s/extention/extension/

branches: 1.9.2;
remove include of <vm/vm.h> and <uvm/uvm_extern.h>

NULL != 0

Remove register declarations.

branches: 1.6.8; 1.6.14;
Make sure a buffer optained from bread() is always bresle()'d in case of
error. Closes PR kern/1448 from Wolfgang Solfrank.

For consistency w/ FFS/LFS, define EXT2_DINODE_SIZE, and use it instead
of pointer arithmetic and/or sizeof(struct ext2fs_dinode).

bzero->memset, bcopy->memcpy, bcmp->memcmp

Merge with Lite2 + local changes

Add byte-swapping functions (bswap16, bswap32, bswap64) to libkern.
Only assembly version for i386 bswap16 and bswap32 for now (bswap64 uses
bswap32). Contribution of assembly versions of these are welcome.
Add byte-swapping of ext2fs metadata for big-endian systems.
Tested on i386 and sparc.

branches: 1.1.4;
The ext2fs layer, based on the ffs/ufs one. Uses a few functions from
sys/ufs/ufs/

Round of uvm.h cleanup.

The poorly named uvm.h is generally supposed to be for uvm-internal
users only.

- Narrow it to files that actually need it -- mostly files that need
to query whether curlwp is the pagedaemon, which should maybe be
exposed by an external header.

- Use uvm_extern.h where feasible and uvm_*.h for things not exposed
by it. We should split up uvm_extern.h but this will serve for now
to reduce the uvm.h dependencies.

- Use uvm_stat.h and #ifdef UVMHIST uvm.h for files that use
UVMHIST(ubchist), since ubchist is declared in uvm.h but the
reference evaporates if UVMHIST is not defined, so we reduce header
file dependencies.

- Make uvm_device.h and uvm_swap.h independently includable while
here.

ok chs@

Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int. The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER! Some subsystems have

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX. Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate. But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all. (Who knows, maybe in some cases integer
truncation is actually intended!)

branches: 1.41.14; 1.41.16;
KNF, no functional changes...