File: [Development] / linux-2.6-xfs / fs / ntfs / ChangeLog (download)
Revision 1.4, Thu Jun 17 03:20:52 2004 UTC (13 years, 4 months ago) by nathans
Branch: MAIN
Changes since 1.3: +136 -9
lines
Merge up to 2.6.7, and upgrade kdb at the same time.
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ToDo/Notes:
- Find and fix bugs.
- Either invalidate quotas or update the quota charges on NTFS 3.x
volumes with quota tracking enabled ($Quota).
- Checkpoint or disable the user space journal ($UsnJrnl).
- Implement aops->set_page_dirty() in order to take control of buffer
dirtying. Not having it means if page_has_buffers(), all buffers
will be dirtied with the page. And if not they won't be. That is
fine for the moment but will break once we enable metadata updates.
For now just always using __set_page_dirty_nobuffers() for metadata
pages as nothing can dirty a page other than ourselves. Should this
change, we will really need to roll our own ->set_page_dirty().
- Implement sops->dirty_inode() to implement {a,m,c}time updates and
such things. This should probably just flag the ntfs inode such that
sops->write_inode(), i.e. ntfs_write_inode(), will copy the times
when it is invoked rather than having to update the mft record
every time.
- In between ntfs_prepare/commit_write, need exclusion between
simultaneous file extensions. Need perhaps an NInoResizeUnderway()
flag which we can set in ntfs_prepare_write() and clear again in
ntfs_commit_write(). Just have to be careful in readpage/writepage,
as well as in truncate, that we play nice... We might need to have
a data_size field in the ntfs_inode to store the real attribute
length. Also need to be careful with initialized_size extention in
ntfs_prepare_write. Basically, just be _very_ careful in this code...
OTOH, perhaps i_sem, which is held accross generic_file_write is
sufficient for synchronisation here. We then just need to make sure
ntfs_readpage/writepage/truncate interoperate properly with us.
- Implement mft.c::sync_mft_mirror_umount(). We currently will just
leave the volume dirty on umount if the final iput(vol->mft_ino)
causes a write of any mirrored mft records due to the mft mirror
inode having been discarded already. Whether this can actually ever
happen is unclear however so it is worth waiting until someone hits
the problem.
- Enable the code for setting the NT4 compatibility flag when we start
making NTFS 1.2 specific modifications.
2.1.14 - Fix an NFSd caused deadlock reported by several users.
- Modify fs/ntfs/ntfs_readdir() to copy the index root attribute value
to a buffer so that we can put the search context and unmap the mft
record before calling the filldir() callback. We need to do this
because of NFSd which calls ->lookup() from its filldir callback()
and this causes NTFS to deadlock as ntfs_lookup() maps the mft record
of the directory and since ntfs_readdir() has got it mapped already
ntfs_lookup() deadlocks.
2.1.13 - Enable overwriting of resident files and housekeeping of system files.
- Implement writing of mft records (fs/ntfs/mft.[hc]), which includes
keeping the mft mirror in sync with the mft when mirrored mft records
are written. The functions are write_mft_record{,_nolock}(). The
implementation is quite rudimentary for now with lots of things not
implemented yet but I am not sure any of them can actually occur so
I will wait for people to hit each one and only then implement it.
- Commit open system inodes at umount time. This should make it
virtually impossible for sync_mft_mirror_umount() to ever be needed.
- Implement ->write_inode (fs/ntfs/inode.c::ntfs_write_inode()) for the
ntfs super operations. This gives us inode writing via the VFS inode
dirty code paths. Note: Access time updates are not implemented yet.
- Implement fs/ntfs/mft.[hc]::{,__}mark_mft_record_dirty() and make
fs/ntfs/aops.c::ntfs_writepage() and ntfs_commit_write() use it, thus
finally enabling resident file overwrite! (-8 This also includes a
placeholder for ->writepage (ntfs_mft_writepage()), which for now
just redirties the page and returns. Also, at umount time, we for
now throw away all mft data page cache pages after the last call to
ntfs_commit_inode() in the hope that all inodes will have been
written out by then and hence no dirty (meta)data will be lost. We
also check for this case and emit an error message telling the user
to run chkdsk.
- Use set_page_writeback() and end_page_writeback() in the resident
attribute code path of fs/ntfs/aops.c::ntfs_writepage() otherwise
the radix-tree tag PAGECACHE_TAG_DIRTY remains set even though the
page is clean.
- Implement ntfs_mft_writepage() so it now checks if any of the mft
records in the page are dirty and if so redirties the page and
returns. Otherwise it just returns (after doing set_page_writeback(),
unlock_page(), end_page_writeback() or the radix-tree tag
PAGECACHE_TAG_DIRTY remains set even though the page is clean), thus
alowing the VM to do with the page as it pleases. Also, at umount
time, now only throw away dirty mft (meta)data pages if dirty inodes
are present and ask the user to email us if they see this happening.
- Add functions ntfs_{clear,set}_volume_flags(), to modify the volume
information flags (fs/ntfs/super.c).
- Mark the volume dirty when (re)mounting read-write and mark it clean
when unmounting or remounting read-only. If any volume errors are
found, the volume is left marked dirty to force chkdsk to run.
- Add code to set the NT4 compatibility flag when (re)mounting
read-write for newer NTFS versions but leave it commented out for now
since we do not make any modifications that are NTFS 1.2 specific yet
and since setting this flag breaks Captive-NTFS which is not nice.
This code must be enabled once we start writing NTFS 1.2 specific
changes otherwise Windows NTFS driver might crash / cause corruption.
2.1.12 - Fix the second fix to the decompression engine and some cleanups.
- Add a new address space operations struct, ntfs_mst_aops, for mst
protected attributes. This is because the default ntfs_aops do not
make sense with mst protected data and were they to write anything to
such an attribute they would cause data corruption so we provide
ntfs_mst_aops which does not have any write related operations set.
- Cleanup dirty ntfs inode handling (fs/ntfs/inode.[hc]) which also
includes an adapted ntfs_commit_inode() and an implementation of
ntfs_write_inode() which for now just cleans dirty inodes without
writing them (it does emit a warning that this is happening).
- Undo the second decompression engine fix (see 2.1.9 release ChangeLog
entry) as it was only fixing a theoretical bug but at the same time
it badly broke the handling of sparse and uncompressed compression
blocks.
2.1.11 - Driver internal cleanups.
- Only build logfile.o if building the driver with read-write support.
- Really final white space cleanups.
- Use generic_ffs() instead of ffs() in logfile.c which allows the
log_page_size variable to be optimized by gcc into a constant.
- Rename uchar_t to ntfschar everywhere as uchar_t is unsigned 1-byte
char as defined by POSIX and as found on some systems.
2.1.10 - Force read-only (re)mounting of volumes with unsupported volume flags.
- Finish off the white space cleanups (remove trailing spaces, etc).
- Clean up ntfs_fill_super() and ntfs_read_inode_mount() by removing
the kludges around the first iget(). Instead of (re)setting ->s_op
we have the $MFT inode set up by explicit new_inode() / set ->i_ino /
insert_inode_hash() / call ntfs_read_inode_mount() directly. This
kills the need for second super_operations and allows to return error
from ntfs_read_inode_mount() without resorting to ugly "poisoning"
tricks. (Al Viro)
- Force read-only (re)mounting if any of the following bits are set in
the volume information flags:
VOLUME_IS_DIRTY, VOLUME_RESIZE_LOG_FILE,
VOLUME_UPGRADE_ON_MOUNT, VOLUME_DELETE_USN_UNDERWAY,
VOLUME_REPAIR_OBJECT_ID, VOLUME_MODIFIED_BY_CHKDSK
To make this easier we define VOLUME_MUST_MOUNT_RO_MASK with all the
above bits set so the test is made easy.
2.1.9 - Fix two bugs in decompression engine.
- Fix a bug where we would not always detect that we have reached the
end of a compression block because we were ending at minus one byte
which is effectively the same as being at the end. The fix is to
check whether the uncompressed buffer has been fully filled and if so
we assume we have reached the end of the compression block. A big
thank you to Marcin GibuĊa for the bug report, the assistance in
tracking down the bug and testing the fix.
- Fix a possible bug where when a compressed read is truncated to the
end of the file, the offset inside the last page was not truncated.
2.1.8 - Handle $MFT mirror and $LogFile, improve time handling, and cleanups.
- Use get_bh() instead of manual atomic_inc() in fs/ntfs/compress.c.
- Modify fs/ntfs/time.c::ntfs2utc(), get_current_ntfs_time(), and
utc2ntfs() to work with struct timespec instead of time_t on the
Linux UTC time side thus preserving the full precision of the NTFS
time and only loosing up to 99 nano-seconds in the Linux UTC time.
- Move fs/ntfs/time.c to fs/ntfs/time.h and make the time functions
static inline.
- Remove unused ntfs_dirty_inode().
- Cleanup super operations declaration in fs/ntfs/super.c.
- Wrap flush_dcache_mft_record_page() in #ifdef NTFS_RW.
- Add NInoTestSetFoo() and NInoTestClearFoo() macro magic to
fs/ntfs/inode.h and use it to declare NInoTest{Set,Clear}Dirty.
- Move typedefs for ntfs_attr and test_t from fs/ntfs/inode.c to
fs/ntfs/inode.h so they can be used elsewhere.
- Determine the mft mirror size as the number of mirrored mft records
and store it in ntfs_volume->mftmirr_size (fs/ntfs/super.c).
- Load the mft mirror at mount time and compare the mft records stored
in it to the ones in the mft. Force a read-only mount if the two do
not match (fs/ntfs/super.c).
- Fix type casting related warnings on 64-bit architectures. Thanks
to Meelis Roos for reporting them.
- Move %L to %ll as %L is floating point and %ll is integer which is
what we want.
- Read the journal ($LogFile) and determine if the volume has been
shutdown cleanly and force a read-only mount if not (fs/ntfs/super.c
and fs/ntfs/logfile.c). This is a little bit of a crude check in
that we only look at the restart areas and not at the actual log
records so that there will be a very small number of cases where we
think that a volume is dirty when in fact it is clean. This should
only affect volumes that have not been shutdown cleanly and did not
have any pending, non-check-pointed i/o.
- If the $LogFile indicates a clean shutdown and a read-write (re)mount
is requested, empty $LogFile by overwriting it with 0xff bytes to
ensure that Windows cannot cause data corruption by replaying a stale
journal after Linux has written to the volume.
2.1.7 - Enable NFS exporting of mounted NTFS volumes.
- Set i_generation in the VFS inode from the seq_no of the NTFS inode.
- Make ntfs_lookup() NFS export safe, i.e. use d_splice_alias(), etc.
- Implement ->get_dentry() in fs/ntfs/namei.c::ntfs_get_dentry() as the
default doesn't allow inode number 0 which is a valid inode on NTFS
and even if it did allow that it uses iget() instead of ntfs_iget()
which makes it useless for us.
- Implement ->get_parent() in fs/ntfs/namei.c::ntfs_get_parent() as the
default just returns -EACCES which is not very useful.
- Define export operations (->s_export_op) for NTFS (ntfs_export_ops)
and set them up in the super block at mount time (super.c) this
allows mounted NTFS volumes to be exported via NFS.
- Add missing return -EOPNOTSUPP; in
fs/ntfs/aops.c::ntfs_commit_nonresident_write().
- Enforce no atime and no dir atime updates at mount/remount time as
they are not implemented yet anyway.
- Move a few assignments in fs/ntfs/attrib.c::load_attribute_list() to
after a NULL check. Thanks to Dave Jones for pointing this out.
2.1.6 - Fix minor bug in handling of compressed directories.
- Fix bug in handling of compressed directories. A compressed
directory is not really compressed so when we set the ->i_blocks
field of a compressed directory inode we were setting it from the
non-existing field ni->itype.compressed.size which gave random
results... For directories we now always use ni->allocated_size.
2.1.5 - Fix minor bug in attribute list attribute handling.
- Fix bug in attribute list handling. Actually it is not as much a bug
as too much protection in that we were not allowing attribute lists
which waste space on disk while Windows XP clearly allows it and in
fact creates such attribute lists so our driver was failing.
- Update NTFS documentation ready for 2.6 kernel release.
2.1.4 - Reduce compiler requirements.
- Remove all uses of unnamed structs and unions in the driver to make
old and newer gcc versions happy. Makes it a bit uglier IMO but at
least people will stop hassling me about it.
2.1.3 - Important bug fixes in corner cases.
- super.c::parse_ntfs_boot_sector(): Correct the check for 64-bit
clusters. (Philipp Thomas)
- attrib.c::load_attribute_list(): Fix bug when initialized_size is a
multiple of the block_size but not the cluster size. (Szabolcs
Szakacsits <szaka@sienet.hu>)
2.1.2 - Important bug fixes aleviating the hangs in statfs.
- Fix buggy free cluster and free inode determination logic.
2.1.1 - Minor updates.
- Add handling for initialized_size != data_size in compressed files.
- Reduce function local stack usage from 0x3d4 bytes to just noise in
fs/ntfs/upcase.c. (Randy Dunlap <rddunlap@osdl.ord>)
- Remove compiler warnings for newer gcc.
- Pages are no longer kmapped by mm/filemap.c::generic_file_write()
around calls to ->{prepare,commit}_write. Adapt NTFS appropriately
in fs/ntfs/aops.c::ntfs_prepare_nonresident_write() by using
kmap_atomic(KM_USER0).
2.1.0 - First steps towards write support: implement file overwrite.
- Add configuration option for developmental write support with an
appropriately scary configuration help text.
- Initial implementation of fs/ntfs/aops.c::ntfs_writepage() and its
helper fs/ntfs/aops.c::ntfs_write_block(). This enables mmap(2) based
overwriting of existing files on ntfs. Note: Resident files are
only written into memory, and not written out to disk at present, so
avoid writing to files smaller than about 1kiB.
- Initial implementation of fs/ntfs/aops.c::ntfs_prepare_write(), its
helper fs/ntfs/aops.c::ntfs_prepare_nonresident_write() and their
counterparts, fs/ntfs/aops.c::ntfs_commit_write(), and
fs/ntfs/aops.c::ntfs_commit_nonresident_write(), respectively. Also,
add generic_file_write() to the ntfs file operations (fs/ntfs/file.c).
This enables write(2) based overwriting of existing files on ntfs.
Note: As with mmap(2) based overwriting, resident files are only
written into memory, and not written out to disk at present, so avoid
writing to files smaller than about 1kiB.
- Implement ->truncate (fs/ntfs/inode.c::ntfs_truncate()) and
->setattr() (fs/ntfs/inode.c::ntfs_setattr()) inode operations for
files with the purpose of intercepting and aborting all i_size
changes which we do not support yet. ntfs_truncate() actually only
emits a warning message but AFAICS our interception of i_size changes
elsewhere means ntfs_truncate() never gets called for i_size changes.
It is only called from generic_file_write() when we fail in
ntfs_prepare_{,nonresident_}write() in order to discard any
instantiated buffers beyond i_size. Thus i_size is not actually
changed so our warning message is enough. Unfortunately it is not
possible to easily determine if i_size is being changed or not hence
we just emit an appropriately worded error message.
2.0.25 - Small bug fixes and cleanups.
- Unlock the page in an out of memory error code path in
fs/ntfs/aops.c::ntfs_read_block().
- If fs/ntfs/aops.c::ntfs_read_page() is called on an uptodate page,
just unlock the page and return. (This can happen due to ->writepage
clearing PageUptodate() during write out of MstProtected()
attributes.
- Remove leaked write code again.
2.0.24 - Cleanups.
- Treat BUG_ON() as ASSERT() not VERIFY(), i.e. do not use side effects
inside BUG_ON(). (Adam J. Richter)
- Split logical OR expressions inside BUG_ON() into individual BUG_ON()
calls for improved debugging. (Adam J. Richter)
- Add errors flag to the ntfs volume state, accessed via
NVol{,Set,Clear}Errors(vol).
- Do not allow read-write remounts of read-only volumes with errors.
- Clarify comment for ntfs file operation sendfile which was added by
Christoph Hellwig a while ago (just using generic_file_sendfile())
to say that ntfs ->sendfile is only used for the case where the
source data is on the ntfs partition and the destination is
somewhere else, i.e. nothing we need to concern ourselves with.
- Add generic_file_write() as our ntfs file write operation.
2.0.23 - Major bug fixes (races, deadlocks, non-i386 architectures).
- Massive internal locking changes to mft record locking. Fixes lock
recursion and replaces the mrec_lock read/write semaphore with a
mutex. Also removes the now superfluous mft_count. This fixes several
race conditions and deadlocks, especially in the future write code.
- Fix ntfs over loopback for compressed files by adding an
optimization barrier. (gcc was screwing up otherwise ?)
- Miscellaneous cleanups all over the code and a fix or two in error
handling code paths.
Thanks go to Christoph Hellwig for pointing out the following two:
- Remove now unused function fs/ntfs/malloc.h::vmalloc_nofs().
- Fix ntfs_free() for ia64 and parisc by checking for VMALLOC_END, too.
2.0.22 - Cleanups, mainly to ntfs_readdir(), and use C99 initializers.
- Change fs/ntfs/dir.c::ntfs_reddir() to only read/write ->f_pos once
at entry/exit respectively.
- Use C99 initializers for structures.
- Remove unused variable blocks from fs/ntfs/aops.c::ntfs_read_block().
2.0.21 - Check for, and refuse to work with too large files/directories/volumes.
- Limit volume size at mount time to 2TiB on architectures where
unsigned long is 32-bits (fs/ntfs/super.c::parse_ntfs_boot_sector()).
This is the most we can do without overflowing the 32-bit limit of
the block device size imposed on us by sb_bread() and sb_getblk()
for the time being.
- Limit file/directory size at open() time to 16TiB on architectures
where unsigned long is 32-bits (fs/ntfs/file.c::ntfs_file_open() and
fs/ntfs/dir.c::ntfs_dir_open()). This is the most we can do without
overflowing the page cache page index.
2.0.20 - Support non-resident directory index bitmaps, fix page leak in readdir.
- Move the directory index bitmap to use an attribute inode instead of
having special fields for it inside the ntfs inode structure. This
means that the index bitmaps now use the page cache for i/o, too,
and also as a side effect we get support for non-resident index
bitmaps for free.
- Simplify/cleanup error handling in fs/ntfs/dir.c::ntfs_readdir() and
fix a page leak that manifested itself in some cases.
- Add fs/ntfs/inode.c::ntfs_put_inode(), which we need to release the
index bitmap inode on the final iput().
2.0.19 - Fix race condition, improvements, and optimizations in i/o interface.
- Apply block optimization added to fs/ntfs/aops.c::ntfs_read_block()
to fs/ntfs/compress.c::ntfs_file_read_compressed_block() as well.
- Drop the "file" from ntfs_file_read_compressed_block().
- Rename fs/ntfs/aops.c::ntfs_enb_buffer_read_async() to
ntfs_end_buffer_async_read() (more like the fs/buffer.c counterpart).
- Update ntfs_end_buffer_async_read() with the improved logic from
its updated counterpart fs/buffer.c::end_buffer_async_read(). Apply
further logic improvements to better determine when we set PageError.
- Update submission of buffers in fs/ntfs/aops.c::ntfs_read_block() to
check for the buffers being uptodate first in line with the updated
fs/buffer.c::block_read_full_page(). This plugs a small race
condition.
2.0.18 - Fix race condition in reading of compressed files.
- There was a narrow window between checking a buffer head for being
uptodate and locking it in ntfs_file_read_compressed_block(). We now
lock the buffer and then check whether it is uptodate or not.
2.0.17 - Cleanups and optimizations - shrinking the ToDo list.
- Modify fs/ntfs/inode.c::ntfs_read_locked_inode() to return an error
code and update callers, i.e. ntfs_iget(), to pass that error code
up instead of just using -EIO.
- Modifications to super.c to ensure that both mount and remount
cannot set any write related options when the driver is compiled
read-only.
- Optimize block resolution in fs/ntfs/aops.c::ntfs_read_block() to
cache the current run list element. This should improve performance
when reading very large and/or very fragmented data.
2.0.16 - Convert access to $MFT/$BITMAP to attribute inode API.
- Fix a stupid bug introduced in 2.0.15 where we were unmapping the
wrong inode in fs/ntfs/inode.c::ntfs_attr_iget().
- Fix debugging check in fs/ntfs/aops.c::ntfs_read_block().
- Convert $MFT/$BITMAP access to attribute inode API and remove all
remnants of the ugly mftbmp address space and operations hack. This
means we finally have only one readpage function as well as only one
async io completion handler. Yey! The mft bitmap is now just an
attribute inode and is accessed from vol->mftbmp_ino just as if it
were a normal file. Fake inodes rule. (-:
2.0.15 - Fake inodes based attribute i/o via the pagecache, fixes and cleanups.
- Fix silly bug in fs/ntfs/super.c::parse_options() which was causing
remounts to fail when the partition had an entry in /etc/fstab and
the entry specified the nls= option.
- Apply same macro magic used in fs/ntfs/inode.h to fs/ntfs/volume.h to
expand all the helper functions NVolFoo(), NVolSetFoo(), and
NVolClearFoo().
- Move copyright statement from driver initialisation message to
module description (fs/super.c). This makes the initialisation
message fit on one line and fits in better with rest of kernel.
- Update fs/ntfs/attrib.c::map_run_list() to work on both real and
attribute inodes, and both for files and directories.
- Implement fake attribute inodes allowing all attribute i/o to go via
the page cache and to use all the normal vfs/mm functionality:
- Add ntfs_attr_iget() and its helper ntfs_read_locked_attr_inode()
to fs/ntfs/inode.c.
- Add needed cleanup code to ntfs_clear_big_inode().
- Merge address space operations for files and directories (aops.c),
now just have ntfs_aops:
- Rename:
end_buffer_read_attr_async() -> ntfs_end_buffer_read_async(),
ntfs_attr_read_block() -> ntfs_read_block(),
ntfs_file_read_page() -> ntfs_readpage().
- Rewrite fs/ntfs/aops.c::ntfs_readpage() to work on both real and
attribute inodes, and both for files and directories.
- Remove obsolete fs/ntfs/aops.c::ntfs_mst_readpage().
2.0.14 - Run list merging code cleanup, minor locking changes, typo fixes.
- Change fs/ntfs/super.c::ntfs_statfs() to not rely on BKL by moving
the locking out of super.c::get_nr_free_mft_records() and taking and
dropping the mftbmp_lock rw_semaphore in ntfs_statfs() itself.
- Bring attribute run list merging code (fs/ntfs/attrib.c) in sync with
current userspace ntfs library code. This means that if a merge
fails the original run lists are always left unmodified instead of
being silently corrupted.
- Misc typo fixes.
2.0.13 - Use iget5_locked() in preparation for fake inodes and small cleanups.
- Remove nr_mft_bits and the now superfluous union with nr_mft_records
from ntfs_volume structure.
- Remove nr_lcn_bits and the now superfluous union with nr_clusters
from ntfs_volume structure.
- Use iget5_locked() and friends instead of conventional iget(). Wrap
the call in fs/ntfs/inode.c::ntfs_iget() and update callers of iget()
to use ntfs_iget(). Leave only one iget() call at mount time so we
don't need an ntfs_iget_mount().
- Change fs/ntfs/inode.c::ntfs_new_extent_inode() to take mft_no as an
additional argument.
2.0.12 - Initial cleanup of address space operations following 2.0.11 changes.
- Merge fs/ntfs/aops.c::end_buffer_read_mst_async() and
fs/ntfs/aops.c::end_buffer_read_file_async() into one function
fs/ntfs/aops.c::end_buffer_read_attr_async() using NInoMstProtected()
to determine whether to apply mst fixups or not.
- Above change allows merging fs/ntfs/aops.c::ntfs_file_read_block()
and fs/ntfs/aops.c::ntfs_mst_readpage() into one function
fs/ntfs/aops.c::ntfs_attr_read_block(). Also, create a tiny wrapper
fs/ntfs/aops.c::ntfs_mst_readpage() to transform the parameters from
the VFS readpage function prototype to the ntfs_attr_read_block()
function prototype.
2.0.11 - Initial preparations for fake inode based attribute i/o.
- Move definition of ntfs_inode_state_bits to fs/ntfs/inode.h and
do some macro magic (adapted from include/linux/buffer_head.h) to
expand all the helper functions NInoFoo(), NInoSetFoo(), and
NInoClearFoo().
- Add new flag to ntfs_inode_state_bits: NI_Sparse.
- Add new fields to ntfs_inode structure to allow use of fake inodes
for attribute i/o: type, name, name_len. Also add new state bits:
NI_Attr, which, if set, indicates the inode is a fake inode, and
NI_MstProtected, which, if set, indicates the attribute uses multi
sector transfer protection, i.e. fixups need to be applied after
reads and before/after writes.
- Rename fs/ntfs/inode.c::ntfs_{new,clear,destroy}_inode() to
ntfs_{new,clear,destroy}_extent_inode() and update callers.
- Use ntfs_clear_extent_inode() in fs/ntfs/inode.c::__ntfs_clear_inode()
instead of ntfs_destroy_extent_inode().
- Cleanup memory deallocations in {__,}ntfs_clear_{,big_}inode().
- Make all operations on ntfs inode state bits use the NIno* functions.
- Set up the new ntfs inode fields and state bits in
fs/ntfs/inode.c::ntfs_read_inode() and add appropriate cleanup of
allocated memory to __ntfs_clear_inode().
- Cleanup ntfs_inode structure a bit for better ordering of elements
w.r.t. their size to allow better packing of the structure in memory.
2.0.10 - There can only be 2^32 - 1 inodes on an NTFS volume.
- Add check at mount time to verify that the number of inodes on the
volume does not exceed 2^32 - 1, which is the maximum allowed for
NTFS according to Microsoft.
- Change mft_no member of ntfs_inode structure to be unsigned long.
Update all users. This makes ntfs_inode->mft_no just a copy of struct
inode->i_ino. But we can't just always use struct inode->i_ino and
remove mft_no because extent inodes do not have an attached struct
inode.
2.0.9 - Decompression engine now uses a single buffer and other cleanups.
- Change decompression engine to use a single buffer protected by a
spin lock instead of per-CPU buffers. (Rusty Russell)
- Do not update cb_pos when handling a partial final page during
decompression of a sparse compression block, as the value is later
reset without being read/used. (Rusty Russell)
- Switch to using the new KM_BIO_SRC_IRQ for atomic kmap()s. (Andrew
Morton)
- Change buffer size in ntfs_readdir()/ntfs_filldir() to use
NLS_MAX_CHARSET_SIZE which makes the buffers almost 1kiB each but
it also makes everything safer so it is a good thing.
- Miscellaneous minor cleanups to comments.
2.0.8 - Major updates for handling of case sensitivity and dcache aliasing.
Big thanks go to Al Viro and other inhabitants of #kernel for investing
their time to discuss the case sensitivity and dcache aliasing issues.
- Remove unused source file fs/ntfs/attraops.c.
- Remove show_inodes mount option(s), thus dropping support for
displaying of short file names.
- Remove deprecated mount option posix.
- Restore show_sys_files mount option.
- Add new mount option case_sensitive, to determine if the driver
treats file names as case sensitive or not. If case sensitive, create
file names in the POSIX namespace. Otherwise create file names in the
LONG/WIN32 namespace. Note, files remain accessible via their short
file name, if it exists.
- Remove really dumb logic bug in boot sector recovery code.
- Fix dcache aliasing issues wrt short/long file names via changes
to fs/ntfs/dir.c::ntfs_lookup_inode_by_name() and
fs/ntfs/namei.c::ntfs_lookup():
- Add additional argument to ntfs_lookup_inode_by_name() in which we
return information about the matching file name if the case is not
matching or the match is a short file name. See comments above the
function definition for details.
- Change ntfs_lookup() to only create dcache entries for the correctly
cased file name and only for the WIN32 namespace counterpart of DOS
namespace file names. This ensures we have only one dentry per
directory and also removes all dcache aliasing issues between short
and long file names once we add write support. See comments above
function for details.
- Fix potential 1 byte overflow in fs/ntfs/unistr.c::ntfs_ucstonls().
2.0.7 - Minor cleanups and updates for changes in core kernel code.
- Remove much of the NULL struct element initializers.
- Various updates to make compatible with recent kernels.
- Remove defines of MAX_BUF_PER_PAGE and include linux/buffer_head.h
in fs/ntfs/ntfs.h instead.
- Remove no longer needed KERNEL_VERSION checks. We are now in the
kernel proper so they are no longer needed.
2.0.6 - Major bugfix to make compatible with other kernel changes.
- Initialize the mftbmp address space properly now that there are more
fields in the struct address_space. This was leading to hangs and
oopses on umount since 2.5.12 because of changes to other parts of
the kernel. We probably want a kernel generic init_address_space()
function...
- Drop BKL from ntfs_readdir() after consultation with Al Viro. The
only caller of ->readdir() is vfs_readdir() which holds i_sem during
the call, and i_sem is sufficient protection against changes in the
directory inode (including ->i_size).
- Use generic_file_llseek() for directories (as opposed to
default_llseek()) as this downs i_sem instead of the BKL which is
what we now need for exclusion against ->f_pos changes considering we
no longer take the BKL in ntfs_readdir().
2.0.5 - Major bugfix. Buffer overflow in extent inode handling.
- No need to set old blocksize in super.c::ntfs_fill_super() as the
VFS does so via invocation of deactivate_super() calling
fs->fill_super() calling block_kill_super() which does it.
- BKL moved from VFS into dir.c::ntfs_readdir(). (Linus Torvalds)
-> Do we really need it? I don't think so as we have exclusion on
the directory ntfs_inode rw_semaphore mrec_lock. We mmight have to
move the ->f_pos accesses under the mrec_lock though. Check this...
- Fix really, really, really stupid buffer overflow in extent inode
handling in mft.c::map_extent_mft_record().
2.0.4 - Cleanups and updates for kernel 2.5.11.
- Add documentation on how to use the MD driver to be able to use NTFS
stripe and volume sets in Linux and generally cleanup documentation
a bit.
Remove all uses of kdev_t in favour of struct block_device *:
- Change compress.c::ntfs_file_read_compressed_block() to use
sb_getblk() instead of getblk().
- Change super.c::ntfs_fill_super() to use bdev_hardsect_size() instead
of get_hardsect_size().
- No need to get old blocksize in super.c::ntfs_fill_super() as
fs/super.c::get_sb_bdev() already does this.
- Set bh->b_bdev instead of bh->b_dev throughout aops.c.
2.0.3 - Small bug fixes, cleanups, and performance improvements.
- Remove some dead code from mft.c.
- Optimize readpage and read_block functions throughout aops.c so that
only initialized blocks are read. Non-initialized ones have their
buffer head mapped, zeroed, and set up to date, without scheduling
any i/o. Thanks to Al Viro for advice on how to avoid the device i/o.
Thanks go to Andrew Morton for spotting the below:
- Fix buglet in allocate_compression_buffers() error code path.
- Call flush_dcache_page() after modifying page cache page contents in
ntfs_file_readpage().
- Check for existence of page buffers throughout aops.c before calling
create_empty_buffers(). This happens when an I/O error occurs and the
read is retried. (It also happens once writing is implemented so that
needed doing anyway but I had left it for later...)
- Don't BUG_ON() uptodate and/or mapped buffers throughout aops.c in
readpage and read_block functions. Reasoning same as above (i.e. I/O
error retries and future write code paths.)
2.0.2 - Minor updates and cleanups.
- Cleanup: rename mst.c::__post_read_mst_fixup to post_write_mst_fixup
and cleanup the code a bit, removing the unused size parameter.
- Change default fmask to 0177 and update documentation.
- Change attrib.c::get_attr_search_ctx() to return the search context
directly instead of taking the address of a pointer. A return value
of NULL means the allocation failed. Updated all callers
appropriately.
- Update to 2.5.9 kernel (preserving backwards compatibility) by
replacing all occurences of page->buffers with page_buffers(page).
- Fix minor bugs in run list merging, also minor cleanup.
- Updates to bootsector layout and mft mirror contents descriptions.
- Small bug fix in error detection in unistr.c and some cleanups.
- Grow name buffer allocations in unistr.c in aligned mutlipled of 64
bytes.
2.0.1 - Minor updates.
- Make default umask correspond to documentation.
- Improve documentation.
- Set default mode to include execute bit. The {u,f,d}mask can be used
to take it away if desired. This allows binaries to be executed from
a mounted ntfs partition.
2.0.0 - New version number. Remove TNG from the name. Now in the kernel.
- Add kill_super, just keeping up with the vfs changes in the kernel.
- Repeat some changes from tng-0.0.8 that somehow got lost on the way
from the CVS import into BitKeeper.
- Begin to implement proper handling of allocated_size vs
initialized_size vs data_size (i.e. i_size). Done are
mft.c::ntfs_mft_readpage(), aops.c::end_buffer_read_index_async(),
and attrib.c::load_attribute_list().
- Lock the run list in attrib.c::load_attribute_list() while using it.
- Fix memory leak in ntfs_file_read_compressed_block() and generally
clean up compress.c a little, removing some uncommented/unused debug
code.
- Tidy up dir.c a little bit.
- Don't bother getting the run list in inode.c::ntfs_read_inode().
- Merge mft.c::ntfs_mft_readpage() and aops.c::ntfs_index_readpage()
creating aops.c::ntfs_mst_readpage(), improving the handling of
holes and overflow in the process and implementing the correct
equivalent of ntfs_file_get_block() in ntfs_mst_readpage() itself.
I am aiming for correctness at the moment. Modularisation can come
later.
- Rename aops.c::end_buffer_read_index_async() to
end_buffer_read_mst_async() and optimize the overflow checking and
handling.
- Use the host of the mftbmp address space mapping to hold the ntfs
volume. This is needed so the async i/o completion handler can
retrieve a pointer to the volume. Hopefully this will not cause
problems elsewhere in the kernel... Otherwise will need to use a
fake inode.
- Complete implementation of proper handling of allocated_size vs
initialized_size vs data_size (i.e. i_size) in whole driver.
Basically aops.c is now completely rewritten.
- Change NTFS driver name to just NTFS and set version number to 2.0.0
to make a clear distinction from the old driver which is still on
version 1.1.22.
tng-0.0.8 - 08/03/2002 - Now using BitKeeper, http://linux-ntfs.bkbits.net/
- Replace bdevname(sb->s_dev) with sb->s_id.
- Remove now superfluous new-line characters in all callers of
ntfs_debug().
- Apply kludge in ntfs_read_inode(), setting i_nlink to 1 for
directories. Without this the "find" utility gets very upset which is
fair enough as Linux/Unix do not support directory hard links.
- Further run list merging work. (Richard Russon)
- Backwards compatibility for gcc-2.95. (Richard Russon)
- Update to kernel 2.5.5-pre1 and rediff the now tiny patch.
- Convert to new file system declaration using ->ntfs_get_sb() and
replacing ntfs_read_super() with ntfs_fill_super().
- Set s_maxbytes to MAX_LFS_FILESIZE to avoid page cache page index
overflow on 32-bit architectures.
- Cleanup upcase loading code to use ntfs_(un)map_page().
- Disable/reenable preemtion in critical sections of compession engine.
- Replace device size determination in ntfs_fill_super() with
sb->s_bdev->bd_inode->i_size (in bytes) and remove now superfluous
function super.c::get_nr_blocks().
- Implement a mount time option (show_inodes) allowing choice of which
types of inode names readdir() returns and modify ntfs_filldir()
accordingly. There are several parameters to show_inodes:
system: system files
win32: long file names (including POSIX file names) [DEFAULT]
long: same as win32
dos: short file names only (excluding POSIX file names)
short: same as dos
posix: same as both win32 and dos
all: all file names
Note that the options are additive, i.e. specifying:
-o show_inodes=system,show_inodes=win32,show_inodes=dos
is the same as specifying:
-o show_inodes=all
Note that the "posix" and "all" options will show all directory
names, BUT the link count on each directory inode entry is set to 1,
due to Linux not supporting directory hard links. This may well
confuse some userspace applications, since the directory names will
have the same inode numbers. Thus it is NOT advisable to use the
"posix" or "all" options. We provide them only for completeness sake.
- Add copies of allocated_size, initialized_size, and compressed_size to
the ntfs inode structure and set them up in
inode.c::ntfs_read_inode(). These reflect the unnamed data attribute
for files and the index allocation attribute for directories.
- Add copies of allocated_size and initialized_size to ntfs inode for
$BITMAP attribute of large directories and set them up in
inode.c::ntfs_read_inode().
- Add copies of allocated_size and initialized_size to ntfs volume for
$BITMAP attribute of $MFT and set them up in
super.c::load_system_files().
- Parse deprecated ntfs driver options (iocharset, show_sys_files,
posix, and utf8) and tell user what the new options to use are. Note
we still do support them but they will be removed with kernel 2.7.x.
- Change all occurences of integer long long printf formatting to hex
as printk() will not support long long integer format if/when the
div64 patch goes into the kernel.
- Make slab caches have stable names and change the names to what they
were intended to be. These changes are required/made possible by the
new slab cache name handling which removes the length limitation by
requiring the caller of kmem_cache_create() to supply a stable name
which is then referenced but not copied.
- Rename run_list structure to run_list_element and create a new
run_list structure containing a pointer to a run_list_element
structure and a read/write semaphore. Adapt all users of run lists
to new scheme and take and release the lock as needed. This fixes a
nasty race as the run_list changes even when inodes are locked for
reading and even when the inode isn't locked at all, so we really
needed the serialization. We use a semaphore rather than a spinlock
as memory allocations can sleep and doing everything GFP_ATOMIC
would be silly.
- Cleanup read_inode() removing all code checking for lowest_vcn != 0.
This can never happen due to the nature of lookup_attr() and how we
support attribute lists. If it did happen it would imply the inode
being corrupt.
- Check for lowest_vcn != 0 in ntfs_read_inode() and mark the inode as
bad if found.
- Update to 2.5.6-pre2 changes in struct address_space.
- Use parent_ino() when accessing d_parent inode number in dir.c.
- Import Sourceforge CVS repository into BitKeeper repository:
http://linux-ntfs.bkbits.net/ntfs-tng-2.5
- Update fs/Makefile, fs/Config.help, fs/Config.in, and
Documentation/filesystems/ntfs.txt for NTFS TNG.
- Create kernel configuration option controlling whether debugging
is enabled or not.
- Add the required export of end_buffer_io_sync() from the patches
directory to the kernel code.
- Update inode.c::ntfs_show_options() with show_inodes mount option.
- Update errors mount option.
tng-0.0.7 - 13/02/2002 - The driver is now feature complete for read-only!
- Cleanup mft.c and it's debug/error output in particular. Fix a minor
bug in mapping of extent inodes. Update all the comments to fit all
the recent code changes.
- Modify vcn_to_lcn() to cope with entirely unmapped run lists.
- Cleanups in compress.c, mostly comments and folding help.
- Implement attrib.c::map_run_list() as a generic helper.
- Make compress.c::ntfs_file_read_compressed_block() use map_run_list()
thus making code shorter and enabling attribute list support.
- Cleanup incorrect use of [su]64 with %L printf format specifier in
all source files. Type casts to [unsigned] long long added to correct
the mismatches (important for architectures which have long long not
being 64 bits).
- Merge async io completion handlers for directory indexes and $MFT
data into one by setting the index_block_size{_bits} of the ntfs
inode for $MFT to the mft_record_size{_bits} of the ntfs_volume.
- Cleanup aops.c, update comments.
- Make ntfs_file_get_block() use map_run_list() so all files now
support attribute lists.
- Make ntfs_dir_readpage() almost verbatim copy of
block_read_full_page() by using ntfs_file_get_block() with only real
difference being the use of our own async io completion handler
rather than the default one, thus reducing the amount of code and
automatically enabling attribute list support for directory indices.
- Fix bug in load_attribute_list() - forgot to call brelse in error
code path.
- Change parameters to find_attr() and lookup_attr(). We no longer
pass in the upcase table and its length. These can be gotten from
ctx->ntfs_ino->vol->upcase{_len}. Update all callers.
- Cleanups in attrib.c.
- Implement merging of run lists, attrib.c::merge_run_lists() and its
helpers. (Richard Russon)
- Attribute lists part 2, attribute extents and multi part run lists:
enable proper support for LCN_RL_NOT_MAPPED and automatic mapping of
further run list parts via attrib.c::map_run_list().
- Tiny endianness bug fix in decompress_mapping_pairs().
tng-0.0.6 - Encrypted directories, bug fixes, cleanups, debugging enhancements.
- Enable encrypted directories. (Their index root is marked encrypted
to indicate that new files in that directory should be created
encrypted.)
- Fix bug in NInoBmpNonResident() macro. (Cut and paste error.)
- Enable $Extend system directory. Most (if not all) extended system
files do not have unnamed data attributes so ntfs_read_inode() had to
special case them but that is ok, as the special casing recovery
happens inside an error code path so there is zero slow down in the
normal fast path. The special casing is done by introducing a new
function inode.c::ntfs_is_extended_system_file() which checks if any
of the hard links in the inode point to $Extend as being their parent
directory and if they do we assume this is an extended system file.
- Create a sysctl/proc interface to allow {dis,en}abling of debug output
when compiled with -DDEBUG. Default is debug messages to be disabled.
To enable them, one writes a non-zero value to /proc/sys/fs/ntfs-debug
(if /proc is enabled) or uses sysctl(2) to effect the same (if sysctl
interface is enabled). Inspired by old ntfs driver.
- Add debug_msgs insmod/kernel boot parameter to set whether debug
messages are {dis,en}abled. This is useful to enable debug messages
during ntfs initialization and is the only way to activate debugging
when the sysctl interface is not enabled.
- Cleanup debug output in various places.
- Remove all dollar signs ($) from the source (except comments) to
enable compilation on architectures whose gcc compiler does not
support dollar signs in the names of variables/constants. Attribute
types now start with AT_ instead of $ and $I30 is now just I30.
- Cleanup ntfs_lookup() and add consistency check of sequence numbers.
- Load complete run list for $MFT/$BITMAP during mount and cleanup
access functions. This means we now cope with $MFT/$BITMAP being
spread accross several mft records.
- Disable modification of mft_zone_multiplier on remount. We can always
reenable this later on if we really want to, but we will need to make
sure we readjust the mft_zone size / layout accordingly.
tng-0.0.5 - Modernize for 2.5.x and further in line-ing with Al Viro's comments.
- Use sb_set_blocksize() instead of set_blocksize() and verify the
return value.
- Use sb_bread() instead of bread() throughout.
- Add index_vcn_size{_bits} to ntfs_inode structure to store the size
of a directory index block vcn. Apply resulting simplifications in
dir.c everywhere.
- Fix a small bug somewhere (but forgot what it was).
- Change ntfs_{debug,error,warning} to enable gcc to do type checking
on the printf-format parameter list and fix bugs reported by gcc
as a result. (Richard Russon)
- Move inode allocation strategy to Al's new stuff but maintain the
divorce of ntfs_inode from struct inode. To achieve this we have two
separate slab caches, one for big ntfs inodes containing a struct
inode and pure ntfs inodes and at the same time fix some faulty
error code paths in ntfs_read_inode().
- Show mount options in proc (inode.c::ntfs_show_options()).
tng-0.0.4 - Big changes, getting in line with Al Viro's comments.
- Modified (un)map_mft_record functions to be common for read and write
case. To specify which is which, added extra parameter at front of
parameter list. Pass either READ or WRITE to this, each has the
obvious meaning.
- General cleanups to allow for easier folding in vi.
- attrib.c::decompress_mapping_pairs() now accepts the old run list
argument, and invokes attrib.c::merge_run_lists() to merge the old
and the new run lists.
- Removed attrib.c::find_first_attr().
- Implemented loading of attribute list and complete run list for $MFT.
This means we now cope with $MFT being spread across several mft
records.
- Adapt to 2.5.2-pre9 and the changed create_empty_buffers() syntax.
- Adapt major/minor/kdev_t/[bk]devname stuff to new 2.5.x kernels.
- Make ntfs_volume be allocated via kmalloc() instead of using a slab
cache. There are too little ntfs_volume structures at any one time
to justify a private slab cache.
- Fix bogus kmap() use in async io completion. Now use kmap_atomic().
Use KM_BIO_IRQ on advice from IRC/kernel...
- Use ntfs_map_page() in map_mft_record() and create ->readpage method
for reading $MFT (ntfs_mft_readpage). In the process create dedicated
address space operations (ntfs_mft_aops) for $MFT inode mapping. Also
removed the now superfluous exports from the kernel core patch.
- Fix a bug where kfree() was used insted of ntfs_free().
- Change map_mft_record() to take ntfs_inode as argument instead of
vfs inode. Dito for unmap_mft_record(). Adapt all callers.
- Add pointer to ntfs_volume to ntfs_inode.
- Add mft record number and sequence number to ntfs_inode. Stop using
i_ino and i_generation for in-driver purposes.
- Implement attrib.c::merge_run_lists(). (Richard Russon)
- Remove use of proper inodes by extent inodes. Move i_ino and
i_generation to ntfs_inode to do this. Apply simplifications that
result and remove iget_no_wait(), etc.
- Pass ntfs_inode everywhere in the driver (used to be struct inode).
- Add reference counting in ntfs_inode for the ntfs inode itself and
for the mapped mft record.
- Extend mft record mapping so we can (un)map extent mft records (new
functions (un)map_extent_mft_record), and so mappings are reference
counted and don't have to happen twice if already mapped - just ref
count increases.
- Add -o iocharset as alias to -o nls for backwards compatibility.
- The latest core patch is now tiny. In fact just a single additional
export is necessary over the base kernel.
tng-0.0.3 - Cleanups, enhancements, bug fixes.
- Work on attrib.c::decompress_mapping_pairs() to detect base extents
and setup the run list appropriately using knowledge provided by the
sizes in the base attribute record.
- Balance the get_/put_attr_search_ctx() calls so we don't leak memory
any more.
- Introduce ntfs_malloc_nofs() and ntfs_free() to allocate/free a single
page or use vmalloc depending on the amount of memory requested.
- Cleanup error output. The __FUNCTION__ "(): " is now added
automatically. Introduced a new header file debug.h to support this
and also moved ntfs_debug() function into it.
- Make reading of compressed files more intelligent and especially get
rid of the vmalloc_nofs() from readpage(). This now uses per CPU
buffers (allocated at first mount with cluster size <= 4kiB and
deallocated on last umount with cluster size <= 4kiB), and
asynchronous io for the compressed data using a list of buffer heads.
Er, we use synchronous io as async io only works on whole pages
covered by buffers and not on individual buffer heads...
- Bug fix for reading compressed files with sparse compression blocks.
tng-0.0.2 - Now handles larger/fragmented/compressed volumes/files/dirs.
- Fixed handling of directories when cluster size exceeds index block
size.
- Hide DOS only name space directory entries from readdir() but allow
them in lookup(). This should fix the problem that Linux doesn't
support directory hard links, while still allowing access to entries
via their short file name. This also has the benefit of mimicking
what Windows users are used to, so it is the ideal solution.
- Implemented sync_page everywhere so no more hangs in D state when
waiting for a page.
- Stop using bforget() in favour of brelse().
- Stop locking buffers unnecessarily.
- Implemented compressed files (inode->mapping contains uncompressed
data, raw compressed data is currently bread() into a vmalloc()ed
memory buffer).
- Enable compressed directories. (Their index root is marked compressed
to indicate that new files in that directory should be created
compressed.)
- Use vsnprintf rather than vsprintf in the ntfs_error and ntfs_warning
functions. (Thanks to Will Dyson for pointing this out.)
- Moved the ntfs_inode and ntfs_volume (the former ntfs_inode_info and
ntfs_sb_info) out of the common inode and super_block structures and
started using the generic_ip and generic_sbp pointers instead. This
makes ntfs entirely private with respect to the kernel tree.
- Detect compiler version and abort with error message if gcc less than
2.96 is used.
- Fix bug in name comparison function in unistr.c.
- Implement attribute lists part 1, the infrastructure: search contexts
and operations, find_external_attr(), lookup_attr()) and make the
code use the infrastructure.
- Fix stupid buffer overflow bug that became apparent on larger run
list containing attributes.
- Fix bugs in readdir() that became apparent on larger directories.
The driver is now really useful and survives the test
find . -type f -exec md5sum "{}" \;
without any error messages on a over 1GiB sized partition with >16k
files on it, including compressed files and directories and many files
and directories with attribute lists.
tng-0.0.1 - The first useful version.
- Added ntfs_lookup().
- Added default upcase generation and handling.
- Added compile options to be shown on module init.
- Many bug fixes that were "hidden" before.
- Update to latest kernel.
- Added ntfs_readdir().
- Added file operations for mmap(), read(), open() and llseek(). We just
use the generic ones. The whole point of going through implementing
readpage() methods and where possible get_block() call backs is that
this allows us to make use of the generic high level methods provided
by the kernel.
The driver is now actually useful! Yey. (-: It undoubtedly has got bugs
though and it doesn't implement accesssing compressed files yet. Also,
accessing files with attribute list attributes is not implemented yet
either. But for small or simple file systems it should work and allow
you to list directories, use stat on directory entries and the file
system, open, read, mmap and llseek around in files. A big mile stone
has been reached!
tng-0.0.0 - Initial version tag.
Initial driver implementation. The driver can mount and umount simple
NTFS file systems (i.e. ones without attribute lists in the system
files). If the mount fails there might be problems in the error handling
code paths, so be warned. Otherwise it seems to be loading the system
files nicely and the mft record read mapping/unmapping seems to be
working nicely, too. Proof of inode metadata in the page cache and non-
resident file unnamed stream data in the page cache concepts is thus
complete.
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