branches: 1.2.4; 1.2.20;
Complete rename of hfsp to hfs, requested by thorpej.

branches: 1.1.1;
Initial revision

branches: 1.3.12;
Add a few.

branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8;
Complete rename of hfsp to hfs, requested by thorpej.

branches: 1.1.1;
Initial revision

Define filesystem attributes with vfs dependency.

Change hfs from hashlist to vcache.
- use (cnid, fork) as key.
- use pool for hfs nodes.

branches: 1.2.4; 1.2.20; 1.2.90;
Complete rename of hfsp to hfs, requested by thorpej.

Rename files from hfsp to hfs.

Rename files from hfsp to hfs.

branches: 1.1.1;
Initial revision

Replace the */ I accidentally removed in the last commit

unifdef -U_LKM

Trailing whitespace

Change hfs from hashlist to vcache.
- use (cnid, fork) as key.
- use pool for hfs nodes.

branches: 1.8.6;
Include sys/malloc.h for MALLOC_DECLARE.

branches: 1.7.28; 1.7.32;
Don't use unnamed structures.

branches: 1.6.4; 1.6.24; 1.6.28; 1.6.30; 1.6.34;
sprinkle #ifdef _KERNEL

branches: 1.5.2; 1.5.4;
* 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

branches: 1.4.2;
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.

Add support for HFS Wrapper (HFS+ volume inside an HFS volume).
Remove offset argument, we should now find an HFS+ volume in any
of its standard places.

branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8;
Complete rename of hfsp to hfs, requested by thorpej.

Rename files from hfsp to hfs.

Change hfs from hashlist to vcache.
- use (cnid, fork) as key.
- use pool for hfs nodes.

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: 1.12.2; 1.12.12; 1.12.16;
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.

branches: 1.11.6;
Make holding v_interlock mandatory for callers of vget().

Announced some time ago on tech-kern.

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.

branches: 1.9.14; 1.9.16;
Don't use unnamed structures.

branches: 1.8.2; 1.8.6;
- 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.

branches: 1.7.6; 1.7.8; 1.7.10;
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.

- Fix probelms with inode hash: make MPSAFE, don't allocate with held locks.
- Replace use of lockmgr().

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.

Merge vmlocking2 to head.

use __KERNEL_RCSID()

branches: 1.2.2; 1.2.4; 1.2.18; 1.2.20; 1.2.26; 1.2.28; 1.2.30; 1.2.32;
Complete rename of hfsp to hfs, requested by thorpej.

Rename files from hfsp to hfs.

KNF

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

ok hannken@

branches: 1.17.10; 1.17.28;
VOP_OPEN() needs a locked vnode. All these copy-and-pasted xxxfs_mount()
implementations need more review.

use getdisksize()

branches: 1.15.4;
simplify and handle unaligned pointer access.

branches: 1.14.2; 1.14.4;
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.

branches: 1.13.2; 1.13.4;
Yes, you need a VOP_UNLOCK() there.

pretend to do some sort of cleanup in error branches

branches: 1.11.4;
more <sys/buf.h> police

branches: 1.10.2;
Don't use unnamed structures.

branches: 1.9.4;
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: 1.8.6; 1.8.8; 1.8.10; 1.8.12;
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.

Merge vmlocking2 to head.

branches: 1.6.2; 1.6.6;
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

branches: 1.5.4;
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.

Merge brelse() changes from the vmlocking branch.

branches: 1.3.8; 1.3.10; 1.3.12; 1.3.14;
Add support for HFS Wrapper (HFS+ volume inside an HFS volume).
Remove offset argument, we should now find an HFS+ volume in any
of its standard places.

Based on work from and test image provided by Pelle Johansson.

branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8;
Complete rename of hfsp to hfs, requested by thorpej.

Rename files from hfsp to hfs.

Remove now unused VV_LOCKSWORK, all file systems support locking.

Remove unused predicates vn_locked() and vn_anylocked().

Welcome to 9.99.95

Avoid undefined behavior in left shift semantics

hfs_vfsops.c:477:19, left shift of 1 by 31 places cannot be represented in type 'int'

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: 1.35.6;
Remove unused mbuf.h includes.

branches: 1.34.4; 1.34.12; 1.34.14;
Add generic genfs_suspendctl() and use it for all file systems.
Layered file systems need work.

branches: 1.33.2; 1.33.4;
Small cleanup:
- KNF
- malloc + memset -> malloc(|M_ZERO)
- no need to check data == NULL

branches: 1.32.4;
Change hfs from hashlist to vcache.
- use (cnid, fork) as key.
- use pool for hfs nodes.

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: 1.30.2;
Change all vfsops to use C99 designated initializers.

No functional changes intended.

branches: 1.29.2; 1.29.4;
Ensure that error is initialized in all code paths.

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: 1.27.2; 1.27.6; 1.27.8;
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.

branches: 1.26.6;
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.

branches: 1.25.2; 1.25.4;
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

vrele, not vput for unlocked devvp

Fix another fine example of "if you make the kernel panic, it's
more secure".

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.

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.

branches: 1.20.2;
kill MALLOC and FREE macros.

branches: 1.19.2; 1.19.4; 1.19.12; 1.19.16;
Don't use unnamed structures.

branches: 1.18.4;
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@.

branches: 1.17.2;
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.

branches: 1.16.6; 1.16.8; 1.16.10;
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.

- Fix probelms with inode hash: make MPSAFE, don't allocate with held locks.
- Replace use of lockmgr().

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.

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.

branches: 1.12.2;
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

* Use vfs_stdextattrctl instead of a homegrown version. Also fixes
a bug: the homegrown version neglected to unlock vp
* don't reimplement eopnotsupp()
* init genfs_node earlier vget, protects against error paths in vget
from attempting to destroy a non-inited node

branches: 1.10.4;
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.

branches: 1.9.2; 1.9.4; 1.9.6; 1.9.8; 1.9.10;
* 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

Use eopnotsupp() instead of vfs_stdsuspendctl() and retire the latter.

branches: 1.7.2;
Make set_statvfs_info() take a parameter for the vfs name instead
of always retrieving it from mp->mnt_op->vfs_name

christos ok

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.

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.

Add support for HFS Wrapper (HFS+ volume inside an HFS volume).
Remove offset argument, we should now find an HFS+ volume in any
of its standard places.

Based on work from and test image provided by Pelle Johansson.

args.path is in UIO_USERSPACE too.
Fixes statvfs on macppc and PR kern/36012.
Thanks to Magnus Henoch for testing.

branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8;
Complete rename of hfsp to hfs, requested by thorpej.

Rename files from hfsp to hfs.

s/blity/bility/ in various words, mainly in comments.

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.

Implement VOP_PARSEPATH() for hfs.

This checks for a following "/rsrc" at the end of the pathname (to
indicate the resource fork of a file) and assimilates it into the
component name to be looked up. Then cn_namelen will already include
this text in lookup, and it's no longer necessary to muck with
cn_consume.

Invalid uses of "/rsrc" are ignored rather than rejected, which
appears to be the same as the old behavior. It is possible that the
parsepath logic should only consume the "/rsrc" if the name names a
file and not a directory, which would require looking it up in
parsepath and be a general nuisance; I hope not. It's also possible
that the whole thing doesn't work at all now, or it didn't before, as
I don't have any way to test it.

- 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: 1.36.6;
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: 1.34.20;
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.

Remove now obsolete operation vcache_remove().

Welcome to 7.99.36

KNF

branches: 1.31.4;
Change hfs from hashlist to vcache.
- use (cnid, fork) as key.
- use pool for hfs nodes.

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: 1.29.2;
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

remove unused variables

branches: 1.27.6;
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@)

branches: 1.26.2;
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@.

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: 1.24.2; 1.24.6; 1.24.8;
use NAME_MAX instead of MAXNAMLEN

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

remove comments about needing to encode : since the on disk format does
not allow them. Also fix reversed encoding in lookup. From Taylor R Campbell.

PR/44523: Taylor R Campbell: mount_hfs badly handles file names with slashes
in them, encode them as colons. XXX: Should encode : as :: too?

Make this build.

Also, the previous commit contanined "unintended" functional changes I'm
going to ignore.

KNF, no functional changes intended.

branches: 1.18.2; 1.18.4;
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.

Stop exposing fifofs internals and leave only fifo_vnodeop_p visible.

branches: 1.16.2; 1.16.4;
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

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

branches: 1.13.2;
kill MALLOC and FREE macros.

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

branches: 1.11.2; 1.11.4;
Don't use unnamed structures.

branches: 1.10.2; 1.10.6;
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.

branches: 1.9.6; 1.9.8; 1.9.10;
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.

Remove VOP_LEASE. Discussed on tech-kern.

struct vop_foo_args comment police: a_l has ceased to be

branches: 1.6.4;
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.

branches: 1.5.2;
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

branches: 1.4.2; 1.4.4; 1.4.10;
In the new world order (a.k.a. the human-understandable world order)
VOP_LOOKUP ignores LOCKPARENT completely, so make this ignore it also.

XXX: tested only with rump, but I can't really see how this worked
at all before

branches: 1.3.4; 1.3.8;
Add support for HFS Wrapper (HFS+ volume inside an HFS volume).
Remove offset argument, we should now find an HFS+ volume in any
of its standard places.

Based on work from and test image provided by Pelle Johansson.

branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8;
Complete rename of hfsp to hfs, requested by thorpej.

Rename files from hfsp to hfs.

Rename files from hfsp to hfs.

branches: 1.1.1;
Initial revision

Rename files from hfsp to hfs.

branches: 1.1.1;
Initial revision

Rename files from hfsp to hfs.

branches: 1.1.1;
Initial revision

Rename files from hfsp to hfs.

branches: 1.1.1;
Initial revision

Rename files from hfsp to hfs.

branches: 1.1.1;
Initial revision

avoid uninitialised variable usage in early error paths.

found by GCC 12.

Fix typo. unknwon -> unknown

fs/hfs: Avoid undefined pointer arith in hfslib_reada_node_offsets.

XXX pullup-8
XXX pullup-9
XXX pullup-10

fs/hfs: Avoid buffer overrun in hfslib_reada_node_offsets.

XXX pullup-8
XXX pullup-9
XXX pullup-10

branches: 1.15.4; 1.15.30;
Fix support for case sensitive HFS.
Without this change, the wrong file is returned, if 2 file names contain a
subset of each other.


Code submitted in PR bin/52993 by Harold Gutch

branches: 1.14.10; 1.14.16; 1.14.18;
KNF

I started to KNF this file but quickly ended up figuring out I was not
courageous enough for such ugliness. So I only KNF'ed the first 300
lines.

I'll come back later.

branches: 1.12.2; 1.12.16;
Fix -fno-common found by building i386/conf/ALL

Assert that out_hr is not NULL in hfslib_read_header_node

branches: 1.10.4;
simplify and avoid pointer gymnastics

branches: 1.9.4; 1.9.6; 1.9.8;
Don't spam if mount fails due to invalid file system.

Initialise the "fork" local variable in hfslib_get_file_extents().
This variable was not actually used uninitialised, but some compilers
(e.g. gcc-4.3.3) warned that the variable might be used uninitialised.
Inspired by PR 41255 from Kurt Lidl.

fix botch in previous

pretend to do some sort of cleanup in error branches

branches: 1.5.12; 1.5.20; 1.5.26;
use __KERNEL_RCSID()

branches: 1.4.10; 1.4.12; 1.4.20; 1.4.22; 1.4.24;
Add support for HFS Wrapper (HFS+ volume inside an HFS volume).
Remove offset argument, we should now find an HFS+ volume in any
of its standard places.

Based on work from and test image provided by Pelle Johansson.

branches: 1.3.2; 1.3.4; 1.3.6; 1.3.8;
Fix PR kern/35953 by mange at freemail dot hu (panic on mount):
(hfslib_open_volume) We are only interested in the catalgo and
extents header, so read the first 512 bytes, not the whole first
extent. Also makes mounting a lot faster.

Complete rename of hfsp to hfs, requested by thorpej.

Rename files from hfsp to hfs.

fs/hfs: Avoid buffer overrun in hfslib_reada_node_offsets.

XXX pullup-8
XXX pullup-9
XXX pullup-10

branches: 1.8.4; 1.8.30;
Remove bogus code to workaround PCC limitations.

This would print stack garbage, which isn't desirable.

branches: 1.7.10; 1.7.16; 1.7.18;
KNF

branches: 1.6.2; 1.6.16;
Fix -fno-common found by building i386/conf/ALL

branches: 1.5.2;
Retire varargs.h support. Move machine/stdarg.h logic into MI
sys/stdarg.h and expect compiler to provide proper builtins, defaulting
to the GCC interface. lint still has a special fallback.
Reduce abuse of _BSD_VA_LIST_ by defining __va_list by default and
derive va_list as required by standards.

Hack around zero vararg macro list on PCC.

branches: 1.3.12; 1.3.32; 1.3.36; 1.3.38; 1.3.42;
Add support for HFS Wrapper (HFS+ volume inside an HFS volume).
Remove offset argument, we should now find an HFS+ volume in any
of its standard places.

Based on work from and test image provided by Pelle Johansson.

branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8;
Complete rename of hfsp to hfs, requested by thorpej.

Rename files from hfsp to hfs.

Rename files from hfsp to hfs.

branches: 1.1.1;
Initial revision

Rename files from hfsp to hfs.

branches: 1.1.1;
Initial revision

KNF

branches: 1.2.56; 1.2.76;
use __KERNEL_RCSID()

branches: 1.1.1;
Initial revision

branches: 1.1.1.1.4; 1.1.1.1.20;
nitial import of (experimental read-only) implementation of Apple
HFS+ file system.

Originally developed for Google Summer of Code 2005 by Yevgeny Binder,
updated and enhanced by me.