CVS log for src/sys/fs/udf/udf_allocation.c

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fix various small typos, mainly in comments.

Pull up following revision(s) (requested by reinoud in ticket #1437):

	sys/fs/udf/udf_allocation.c: revision 1.46

Revere modification of initializer; it can lead to race conditions where two
allocation would pick the `empty' space causing a panic later on.

Pull up following revision(s), all via patch,
requested by reinoud in ticket #1432:

	sys/fs/udf/udf_vfsops.c: revision 1.83
	sys/fs/udf/udf_allocation.c: revision 1.45
	sys/fs/udf/udf_subr.c: revision 1.160
	sys/fs/udf/udf_subr.c: revision 1.161

While searching the VAT on recordable media, search the last sector too!
This fixes Win10 formatted discs from being mounted incorrectly.

Make sysctl udf.verbose dependent on UDF_DEBUG instead of DEBUG

Fix serious issue with recordable media formatted with Win10. When closing it
after modification the VAT was written out corrupted making the disc
unreadable anymore on remount. Thanks for ig@ for spotting it in the wild!

On freeing a virtual address in the VAT, use the correct value; this might
confuse other implementations who can reject the VAT on this.

Revere modification of initializer; it can lead to race conditions where two
allocation would pick the `empty' space causing a panic later on.

On freeing a virtual address in the VAT, use the correct value; this might
confuse other implementations who can reject the VAT on this.

fix typos in comments, mainly s/extention/extension/ and s/sufficent/sufficient/

fix various typos in comments and log messages.

Sync with HEAD.

Fix all remaining typos, mainly in comments but also in few definitions and log messages, reported by me in PR kern/54889.
Also fixed some additional typos in comments, found on review of same files or typos.

Sync with bouyer-xenpvh-base2 (HEAD)

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.

Sync with HEAD

Sync with head

remove M_CANFAIL flag for malloc(9) - it was completely ignored, so had
actually no effect

update from HEAD

Sync with HEAD

Sync with HEAD.  (Note that most of these changes are simply $NetBSD$
tag issues.)

PR/51777: David Binderman: Remove unused computation

Sync with HEAD

Remove dirtynodes_cv, it is only used for timed waits without any signals.

Replace the cv_timedwait with kpause.

Sync with HEAD

Relax the KASSERT since an equal size is no issue

Rebase to HEAD as of a few days ago.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

sync with head

used __diagused where appropriate.

fix unused variable warnings

Pull up following revision(s) (requested by reinoud in ticket #930):
	sys/fs/udf/udf_allocation.c: revision 1.34
Fix 32 bit issue in main file read-in function. On both 32 bit and 64 bit
hosts a missing cast would result in `garbage' after the 4Gbyte limit.

Pull up following revision(s) (requested by reinoud in ticket #930):
	sys/fs/udf/udf_allocation.c: revision 1.34
Fix 32 bit issue in main file read-in function. On both 32 bit and 64 bit
hosts a missing cast would result in `garbage' after the 4Gbyte limit.

Pull up following revision(s) (requested by reinoud in ticket #930):
	sys/fs/udf/udf_allocation.c: revision 1.34
Fix 32 bit issue in main file read-in function. On both 32 bit and 64 bit
hosts a missing cast would result in `garbage' after the 4Gbyte limit.

sync with head

Fix 32 bit issue in main file read-in function. On both 32 bit and 64 bit
hosts a missing cast would result in `garbage' after the 4Gbyte limit.

On growing a node that was recorded inside the (E)FE, don't forget to set the
size of the node to the NEW size. This was reported by the `t_io
udf_shrinkfile' testcase.

Fixes PR kern/47985

Catchup with rmind-uvmplock merge.

Rename uvm_vnp_zerorange(struct vnode *, off_t, size_t) to
ubc_zerorange(struct uvm_object *, off_t, size_t, int) changing
the first argument to an uvm_object and adding a flags argument.

Modify tmpfs_reg_resize() to zero the backing store (aobj) instead
of the vnode.  Ubc_purge() no longer panics when unmounting tmpfs.

Keep uvm_vnp_zerorange() until the next kernel version bump.

sync with head

Metadata partition (v2.50+) bugfix commit :

* fix copying of the extents of the metadata node to the metadatamirror node;
  it was not copying all extents.

* fix truncing metadata partition:
   * fix endian conversions
   * fix information length calculation so its truncated to the right length!

* allow for setting maximum extent length in extent merging. This is needed
  since extents in the metadata partition files are only to be in allocation
  unit sizes.

* adjust grow and shrink node to set the granularity of the maximum length of
  an extent when encountering a metadatafile or metadatamirror file.

Growing the metadata partition is not yet implemented. Be so kind to report
this as unimplemented when the debug flag asks for it!

Sync with HEAD.

sync to netbsd-5

sync with head

Typo and style

First part of shrinking/growing metadata partition support:

- extending the metadata partition

Still to follow:
- sparsify metadata partition
- growing the metadata partition
- unsparsifying metadata partition

Sync with HEAD.

sync with head.

Apply patch (requested by reinoud in ticket #852):
Numerous UDF improvements:
- a much saner rmw backend
- free space management done right
- the high system time usage when encountering huge numbers of nodes
  are a thing of the past due to refactoring
- various small fixes

Fix corner-case in truncing files. It could forget to free the last block.
This would result in a free-space map with one block orphaned.

Commit first stage of free-space accounting. It is estimating the underlimit
of free blocks on the device and when free blocks are getting tight it tries
to readjust/recalculate that value by syncing the FS.

Second stage will be resizing the data/metadata partitions.

sync with head

Fix nitpicky spacing and debug printout

Remove unneeded (and unused) inclusion of "opt_quota.h"

Pull up following revision(s) (requested by reinoud in ticket #770):
	sys/fs/udf/udf_subr.c: revision 1.88, 1.89
	sys/fs/udf/udf_bswap.h: revision 1.6, 1.7
	sys/fs/udf/udf_allocation.c: revision 1.22, 1.23
	sbin/newfs_udf/udf_create.c: revision 1.16
Fix *serious* bug in bswapping definitions for big endian machines.
ANSI-fy. No idea why they weren't so in the first place.
Fix newfs_udf to create a valid disc images on bigendian machines.
A descriptor's CRC lenth is 16 bit so use udf_rw16() on tag.desc_crc_len.
Forgot to use the udf_rw16() on the descriptor crc lengths of FID's!
Also fix a few dubiously formatted checks.
On creation of a new node, don't forget to set the length of the allocated
space in the right endian!
Account for the logical blocks recorded by the extent in the right endian!

Account for the logical blocks recorded by the extent in the right endian!

A descriptor's CRC lenth is 16 bit so use udf_rw16() on tag.desc_crc_len.

Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.

sync with head.

Sync with HEAD.

Pull up following revision(s) (requested by reinoud in ticket #716):
	sys/fs/udf/udf_allocation.c: revision 1.21
Fix endian related bug when using discs with a meta-data partition on
big-endian machines.

Fix endian related bug when using discs with a meta-data partition on
big-endian machines.

Pull up following revision(s) (requested by reinoud in ticket #610):
	sys/fs/udf/udf_allocation.c: revision 1.20
Fix possible overshoot when allocating from a space bitmap when ffs(3) returns
a too big offset for the bitmap.

Fix possible overshoot when allocating from a space bitmap when ffs(3) returns
a too big offset for the bitmap.

Sync with HEAD.

Sync with HEAD.

The great QUOTA purge of '08: get rid of those #ifdef QUOTA and
#include "opt_quota.h" which do exactly nothing.  Speeds up kernel
compilation by 1.375*10^-20001 seconds.  But leave the most moxious
comment in msdosfs_vfsops untouched.

Sync with HEAD.

Sync with HEAD.

Sync with wrstuden-revivesa-base-2.

Remove all remaining traces of UDF_READWRITE since it has been removed as
option.

Rewrite allocation scheme's determination and implementation replacing the
old somewhat naive selection scheme that didn't allow different allocation
settings for nodes, directory information (FIDs) and data.

Also fix some curious side-effects of atime updates on RMW devices.

Sync with head.

Streamline allocation to prepare it for metadata partition. Also add
preliminary Metadata partition write support but its disabled still since
its not finished yet and not functioning correctly. All other formats are
checked and should work fine.

Sync with head.

Clarify not implemented allocation schemes; mostly UDF 2.50
HD-DVD/BluRay-RE and UDF 2.60 for BluRay-R

Sync with head.

Use the allocation descriptor types selected on mount when growing from an
internal to an extent recording.

Sync with head.

Hopefully fix gcc type puned warning.

Make UDF allocation-sanity check optional even if the DEBUG flag is
specified. This should be sysctl-able when compiled with the DEBUG flag
eventually.

Support for allocation extents descriptor writing to allow for arbitrary
heavily fragmented files.

Also fixing some (rare) allocation bugs and function name streamlining.

Tested on harddisc, CD-RW and CD-R i.e. all three basic backend classes.

Sync with head.

Fix rare allocation problem when a fragmented file is truncated to a
non-zero length and the last extent was allocated.

Sync with HEAD.

Update node sanity check system and redo allocation recording fixing
corruptions that could take place when overwriting sparse files.

Still one rare corruption possible where blocks are accidentally marked
free, but the cause is not yet found and looking at the pattern it won't
happen in every day use.

Fix serious allocation recording bug if overwriting piece that was
allocated before. Fixes regression test on random overwriting data.

Also fix endian issues and add extra documentation to variables.

Sync with HEAD.

When shrinking the file, do clean the freed part in the descriptor; all
unused space need to be zero filled.

Sync with head.

Count the length correctly when encountering an allocation extension
redirect in the sanity checking.

Fix lookup problems in very fragmented metadata partitions that use
allocation extent descriptors.

Fix extended allocation descriptor handling in translate file extent

Fix allocation extensions descriptor reading and do free them on node
destruction!

Add files to branch that were added on -current.

After this, all that's left of update is to merge some changes
that had conflicts.

sync with head

Sync with HEAD.

file udf_allocation.c was added on branch wrstuden-revivesa on 2008-06-23 05:02:13 +0000

file udf_allocation.c was added on branch mjf-devfs2 on 2008-06-02 13:24:06 +0000

Remove bogus KASSERT(); if we shrink the file, the number of allocated
blocsk are of course not the same... duh!

sync with head.

sync with head.

file udf_allocation.c was added on branch yamt-pf42 on 2008-05-18 12:35:05 +0000

file udf_allocation.c was added on branch yamt-nfs-mp on 2008-05-16 02:25:21 +0000

Import writing part of the UDF file system making optical media like CD's
and DVD's behave like floppy discs. Writing is supported upto and including
version 2.01; version 2.50 and 2.60 will follow.

Also extending the UDF implementation to support symbolic links and
hardlinks.

Added are the mmcformat(8) tool to format rewritable CD/DVD discs and
newfs_udf(8).

Limitations:
        all operations can be performed on the file system though the
        sheduling is currently optimised for archiving workloads.

        mv(1)/rename(2) is currently only implemented for non-directories.