Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog
new file mode 100644
index 0000000..1d2ad15
--- /dev/null
+++ b/fs/ntfs/ChangeLog
@@ -0,0 +1,1350 @@
+ToDo/Notes:
+ - Find and fix bugs.
+ - Checkpoint or disable the user space journal ($UsnJrnl).
+ - 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.
+ UPDATE: The above is all ok as it is due to i_sem held. The only
+ thing that needs to be checked is ntfs_writepage() which does not
+ hold i_sem. It cannot change i_size but it needs to cope with a
+ concurrent i_size change.
+ - 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.
+
+2.1.23-WIP
+
+ - Add printk rate limiting for ntfs_warning() and ntfs_error() when
+ compiled without debug. This avoids a possible denial of service
+ attack. Thanks to Carl-Daniel Hailfinger from SuSE for pointing this
+ out.
+
+2.1.22 - Many bug and race fixes and error handling improvements.
+
+ - Improve error handling in fs/ntfs/inode.c::ntfs_truncate().
+ - Change fs/ntfs/inode.c::ntfs_truncate() to return an error code
+ instead of void and provide a helper ntfs_truncate_vfs() for the
+ vfs ->truncate method.
+ - Add a new ntfs inode flag NInoTruncateFailed() and modify
+ fs/ntfs/inode.c::ntfs_truncate() to set and clear it appropriately.
+ - Fix min_size and max_size definitions in ATTR_DEF structure in
+ fs/ntfs/layout.h to be signed.
+ - Add attribute definition handling helpers to fs/ntfs/attrib.[hc]:
+ ntfs_attr_size_bounds_check(), ntfs_attr_can_be_non_resident(), and
+ ntfs_attr_can_be_resident(), which in turn use the new private helper
+ ntfs_attr_find_in_attrdef().
+ - In fs/ntfs/aops.c::mark_ntfs_record_dirty(), take the
+ mapping->private_lock around the dirtying of the buffer heads
+ analagous to the way it is done in __set_page_dirty_buffers().
+ - Ensure the mft record size does not exceed the PAGE_CACHE_SIZE at
+ mount time as this cannot work with the current implementation.
+ - Check for location of attribute name and improve error handling in
+ general in fs/ntfs/inode.c::ntfs_read_locked_inode() and friends.
+ - In fs/ntfs/aops.c::ntfs_writepage(), if the page is fully outside
+ i_size, i.e. race with truncate, invalidate the buffers on the page
+ so that they become freeable and hence the page does not leak.
+ - Remove unused function fs/ntfs/runlist.c::ntfs_rl_merge(). (Adrian
+ Bunk)
+ - Fix stupid bug in fs/ntfs/attrib.c::ntfs_attr_find() that resulted in
+ a NULL pointer dereference in the error code path when a corrupt
+ attribute was found. (Thanks to Domen Puncer for the bug report.)
+ - Add MODULE_VERSION() to fs/ntfs/super.c.
+ - Make several functions and variables static. (Adrian Bunk)
+ - Modify fs/ntfs/aops.c::mark_ntfs_record_dirty() so it allocates
+ buffers for the page if they are not present and then marks the
+ buffers belonging to the ntfs record dirty. This causes the buffers
+ to become busy and hence they are safe from removal until the page
+ has been written out.
+ - Fix stupid bug in fs/ntfs/attrib.c::ntfs_external_attr_find() in the
+ error handling code path that resulted in a BUG() due to trying to
+ unmap an extent mft record when the mapping of it had failed and it
+ thus was not mapped. (Thanks to Ken MacFerrin for the bug report.)
+ - Drop the runlist lock after the vcn has been read in
+ fs/ntfs/lcnalloc.c::__ntfs_cluster_free().
+ - Rewrite handling of multi sector transfer errors. We now do not set
+ PageError() when such errors are detected in the async i/o handler
+ fs/ntfs/aops.c::ntfs_end_buffer_async_read(). All users of mst
+ protected attributes now check the magic of each ntfs record as they
+ use it and act appropriately. This has the effect of making errors
+ granular per ntfs record rather than per page which solves the case
+ where we cannot access any of the ntfs records in a page when a
+ single one of them had an mst error. (Thanks to Ken MacFerrin for
+ the bug report.)
+ - Fix error handling in fs/ntfs/quota.c::ntfs_mark_quotas_out_of_date()
+ where we failed to release i_sem on the $Quota/$Q attribute inode.
+ - Fix bug in handling of bad inodes in fs/ntfs/namei.c::ntfs_lookup().
+ - Add mapping of unmapped buffers to all remaining code paths, i.e.
+ fs/ntfs/aops.c::ntfs_write_mst_block(), mft.c::ntfs_sync_mft_mirror(),
+ and write_mft_record_nolock(). From now on we require that the
+ complete runlist for the mft mirror is always mapped into memory.
+ - Add creation of buffers to fs/ntfs/mft.c::ntfs_sync_mft_mirror().
+ - Improve error handling in fs/ntfs/aops.c::ntfs_{read,write}_block().
+ - Cleanup fs/ntfs/aops.c::ntfs_{read,write}page() since we know that a
+ resident attribute will be smaller than a page which makes the code
+ simpler. Also make the code more tolerant to concurrent ->truncate.
+
+2.1.21 - Fix some races and bugs, rewrite mft write code, add mft allocator.
+
+ - Implement extent mft record deallocation
+ fs/ntfs/mft.c::ntfs_extent_mft_record_free().
+ - Splitt runlist related functions off from attrib.[hc] to runlist.[hc].
+ - Add vol->mft_data_pos and initialize it at mount time.
+ - Rename init_runlist() to ntfs_init_runlist(), ntfs_vcn_to_lcn() to
+ ntfs_rl_vcn_to_lcn(), decompress_mapping_pairs() to
+ ntfs_mapping_pairs_decompress(), ntfs_merge_runlists() to
+ ntfs_runlists_merge() and adapt all callers.
+ - Add fs/ntfs/runlist.[hc]::ntfs_get_nr_significant_bytes(),
+ ntfs_get_size_for_mapping_pairs(), ntfs_write_significant_bytes(),
+ and ntfs_mapping_pairs_build(), adapted from libntfs.
+ - Make fs/ntfs/lcnalloc.c::ntfs_cluster_free_from_rl_nolock() not
+ static and add a declaration for it to lcnalloc.h.
+ - Add fs/ntfs/lcnalloc.h::ntfs_cluster_free_from_rl() which is a static
+ inline wrapper for ntfs_cluster_free_from_rl_nolock() which takes the
+ cluster bitmap lock for the duration of the call.
+ - Add fs/ntfs/attrib.[hc]::ntfs_attr_record_resize().
+ - Implement the equivalent of memset() for an ntfs attribute in
+ fs/ntfs/attrib.[hc]::ntfs_attr_set() and switch
+ fs/ntfs/logfile.c::ntfs_empty_logfile() to using it.
+ - Remove unnecessary casts from LCN_* constants.
+ - Implement fs/ntfs/runlist.c::ntfs_rl_truncate_nolock().
+ - Add MFT_RECORD_OLD as a copy of MFT_RECORD in fs/ntfs/layout.h and
+ change MFT_RECORD to contain the NTFS 3.1+ specific fields.
+ - Add a helper function fs/ntfs/aops.c::mark_ntfs_record_dirty() which
+ marks all buffers belonging to an ntfs record dirty, followed by
+ marking the page the ntfs record is in dirty and also marking the vfs
+ inode containing the ntfs record dirty (I_DIRTY_PAGES).
+ - Switch fs/ntfs/index.h::ntfs_index_entry_mark_dirty() to using the
+ new helper fs/ntfs/aops.c::mark_ntfs_record_dirty() and remove the no
+ longer needed fs/ntfs/index.[hc]::__ntfs_index_entry_mark_dirty().
+ - Move ntfs_{un,}map_page() from ntfs.h to aops.h and fix resulting
+ include errors.
+ - Move the typedefs for runlist_element and runlist from types.h to
+ runlist.h and fix resulting include errors.
+ - Remove unused {__,}format_mft_record() from fs/ntfs/mft.c.
+ - Modify fs/ntfs/mft.c::__mark_mft_record_dirty() to use the helper
+ mark_ntfs_record_dirty() which also changes the behaviour in that we
+ now set the buffers belonging to the mft record dirty as well as the
+ page itself.
+ - Update fs/ntfs/mft.c::write_mft_record_nolock() and sync_mft_mirror()
+ to cope with the fact that there now are dirty buffers in mft pages.
+ - Update fs/ntfs/inode.c::ntfs_write_inode() to also use the helper
+ mark_ntfs_record_dirty() and thus to set the buffers belonging to the
+ mft record dirty as well as the page itself.
+ - Fix compiler warnings on x86-64 in fs/ntfs/dir.c. (Randy Dunlap,
+ slightly modified by me)
+ - Add fs/ntfs/mft.c::try_map_mft_record() which fails with -EALREADY if
+ the mft record is already locked and otherwise behaves the same way
+ as fs/ntfs/mft.c::map_mft_record().
+ - Modify fs/ntfs/mft.c::write_mft_record_nolock() so that it only
+ writes the mft record if the buffers belonging to it are dirty.
+ Otherwise we assume that it was written out by other means already.
+ - Attempting to write outside initialized size is _not_ a bug so remove
+ the bug check from fs/ntfs/aops.c::ntfs_write_mst_block(). It is in
+ fact required to write outside initialized size when preparing to
+ extend the initialized size.
+ - Map the page instead of using page_address() before writing to it in
+ fs/ntfs/aops.c::ntfs_mft_writepage().
+ - Provide exclusion between opening an inode / mapping an mft record
+ and accessing the mft record in fs/ntfs/mft.c::ntfs_mft_writepage()
+ by setting the page not uptodate throughout ntfs_mft_writepage().
+ - Clear the page uptodate flag in fs/ntfs/aops.c::ntfs_write_mst_block()
+ to ensure noone can see the page whilst the mst fixups are applied.
+ - Add the helper fs/ntfs/mft.c::ntfs_may_write_mft_record() which
+ checks if an mft record may be written out safely obtaining any
+ necessary locks in the process. This is used by
+ fs/ntfs/aops.c::ntfs_write_mst_block().
+ - Modify fs/ntfs/aops.c::ntfs_write_mst_block() to also work for
+ writing mft records and improve its error handling in the process.
+ Now if any of the records in the page fail to be written out, all
+ other records will be written out instead of aborting completely.
+ - Remove ntfs_mft_aops and update all users to use ntfs_mst_aops.
+ - Modify fs/ntfs/inode.c::ntfs_read_locked_inode() to set the
+ ntfs_mst_aops for all inodes which are NInoMstProtected() and
+ ntfs_aops for all other inodes.
+ - Rename fs/ntfs/mft.c::sync_mft_mirror{,_umount}() to
+ ntfs_sync_mft_mirror{,_umount}() and change their parameters so they
+ no longer require an ntfs inode to be present. Update all callers.
+ - Cleanup the error handling in fs/ntfs/mft.c::ntfs_sync_mft_mirror().
+ - Clear the page uptodate flag in fs/ntfs/mft.c::ntfs_sync_mft_mirror()
+ to ensure noone can see the page whilst the mst fixups are applied.
+ - Remove the no longer needed fs/ntfs/mft.c::ntfs_mft_writepage() and
+ fs/ntfs/mft.c::try_map_mft_record().
+ - Fix callers of fs/ntfs/aops.c::mark_ntfs_record_dirty() to call it
+ with the ntfs inode which contains the page rather than the ntfs
+ inode the mft record of which is in the page.
+ - Fix race condition in fs/ntfs/inode.c::ntfs_put_inode() by moving the
+ index inode bitmap inode release code from there to
+ fs/ntfs/inode.c::ntfs_clear_big_inode(). (Thanks to Christoph
+ Hellwig for spotting this.)
+ - Fix race condition in fs/ntfs/inode.c::ntfs_put_inode() by taking the
+ inode semaphore around the code that sets ni->itype.index.bmp_ino to
+ NULL and reorganize the code to optimize it a bit. (Thanks to
+ Christoph Hellwig for spotting this.)
+ - Modify fs/ntfs/aops.c::mark_ntfs_record_dirty() to no longer take the
+ ntfs inode as a parameter as this is confusing and misleading and the
+ needed ntfs inode is available via NTFS_I(page->mapping->host).
+ Adapt all callers to this change.
+ - Modify fs/ntfs/mft.c::write_mft_record_nolock() and
+ fs/ntfs/aops.c::ntfs_write_mst_block() to only check the dirty state
+ of the first buffer in a record and to take this as the ntfs record
+ dirty state. We cannot look at the dirty state for subsequent
+ buffers because we might be racing with
+ fs/ntfs/aops.c::mark_ntfs_record_dirty().
+ - Move the static inline ntfs_init_big_inode() from fs/ntfs/inode.c to
+ inode.h and make fs/ntfs/inode.c::__ntfs_init_inode() non-static and
+ add a declaration for it to inode.h. Fix some compilation issues
+ that resulted due to #includes and header file interdependencies.
+ - Simplify setup of i_mode in fs/ntfs/inode.c::ntfs_read_locked_inode().
+ - Add helpers fs/ntfs/layout.h::MK_MREF() and MK_LE_MREF().
+ - Modify fs/ntfs/mft.c::map_extent_mft_record() to only verify the mft
+ record sequence number if it is specified (i.e. not zero).
+ - Add fs/ntfs/mft.[hc]::ntfs_mft_record_alloc() and various helper
+ functions used by it.
+ - Update Documentation/filesystems/ntfs.txt with instructions on how to
+ use the Device-Mapper driver with NTFS ftdisk/LDM raid. This removes
+ the linear raid problem with the Software RAID / MD driver when one
+ or more of the devices has an odd number of sectors.
+
+2.1.20 - Fix two stupid bugs introduced in 2.1.18 release.
+
+ - Fix stupid bug in fs/ntfs/attrib.c::ntfs_attr_reinit_search_ctx()
+ where we did not clear ctx->al_entry but it was still set due to
+ changes in ntfs_attr_lookup() and ntfs_external_attr_find() in
+ particular.
+ - Fix another stupid bug in fs/ntfs/attrib.c::ntfs_external_attr_find()
+ where we forgot to unmap the extent mft record when we had finished
+ enumerating an attribute which caused a bug check to trigger when the
+ VFS calls ->clear_inode.
+
+2.1.19 - Many cleanups, improvements, and a minor bug fix.
+
+ - Update ->setattr (fs/ntfs/inode.c::ntfs_setattr()) to refuse to
+ change the uid, gid, and mode of an inode as we do not support NTFS
+ ACLs yet.
+ - Remove BKL use from ntfs_setattr() syncing up with the rest of the
+ kernel.
+ - Get rid of the ugly transparent union in fs/ntfs/dir.c::ntfs_readdir()
+ and ntfs_filldir() as per suggestion from Al Viro.
+ - Change '\0' and L'\0' to simply 0 as per advice from Linus Torvalds.
+ - Update ->truncate (fs/ntfs/inode.c::ntfs_truncate()) to check if the
+ inode size has changed and to only output an error if so.
+ - Rename fs/ntfs/attrib.h::attribute_value_length() to ntfs_attr_size().
+ - Add le{16,32,64} as well as sle{16,32,64} data types to
+ fs/ntfs/types.h.
+ - Change ntfschar to be le16 instead of u16 in fs/ntfs/types.h.
+ - Add le versions of VCN, LCN, and LSN called leVCN, leLCN, and leLSN,
+ respectively, to fs/ntfs/types.h.
+ - Update endianness conversion macros in fs/ntfs/endian.h to use the
+ new types as appropriate.
+ - Do proper type casting when using sle64_to_cpup() in fs/ntfs/dir.c
+ and index.c.
+ - Add leMFT_REF data type to fs/ntfs/layout.h.
+ - Update all NTFS header files with the new little endian data types.
+ Affected files are fs/ntfs/layout.h, logfile.h, and time.h.
+ - Do proper type casting when using ntfs_is_*_recordp() in
+ fs/ntfs/logfile.c, mft.c, and super.c.
+ - Fix all the sparse bitwise warnings. Had to change all the typedef
+ enums storing little endian values to simple enums plus a typedef for
+ the datatype to make sparse happy.
+ - Fix a bug found by the new sparse bitwise warnings where the default
+ upcase table was defined as a pointer to wchar_t rather than ntfschar
+ in fs/ntfs/ntfs.h and super.c.
+ - Change {const_,}cpu_to_le{16,32}(0) to just 0 as suggested by Al Viro.
+
+2.1.18 - Fix scheduling latencies at mount time as well as an endianness bug.
+
+ - Remove vol->nr_mft_records as it was pretty meaningless and optimize
+ the calculation of total/free inodes as used by statfs().
+ - Fix scheduling latencies in ntfs_fill_super() by dropping the BKL
+ because the code itself is using the ntfs_lock semaphore which
+ provides safe locking. (Ingo Molnar)
+ - Fix a potential bug in fs/ntfs/mft.c::map_extent_mft_record() that
+ could occur in the future for when we start closing/freeing extent
+ inodes if we don't set base_ni->ext.extent_ntfs_inos to NULL after
+ we free it.
+ - Rename {find,lookup}_attr() to ntfs_attr_{find,lookup}() as well as
+ find_external_attr() to ntfs_external_attr_find() to cleanup the
+ namespace a bit and to be more consistent with libntfs.
+ - Rename {{re,}init,get,put}_attr_search_ctx() to
+ ntfs_attr_{{re,}init,get,put}_search_ctx() as well as the type
+ attr_search_context to ntfs_attr_search_ctx.
+ - Force use of ntfs_attr_find() in ntfs_attr_lookup() when searching
+ for the attribute list attribute itself.
+ - Fix endianness bug in ntfs_external_attr_find().
+ - Change ntfs_{external_,}attr_find() to return 0 on success, -ENOENT
+ if the attribute is not found, and -EIO on real error. In the case
+ of -ENOENT, the search context is updated to describe the attribute
+ before which the attribute being searched for would need to be
+ inserted if such an action were to be desired and in the case of
+ ntfs_external_attr_find() the search context is also updated to
+ indicate the attribute list entry before which the attribute list
+ entry of the attribute being searched for would need to be inserted
+ if such an action were to be desired. Also make ntfs_find_attr()
+ static and remove its prototype from attrib.h as it is not used
+ anywhere other than attrib.c. Update ntfs_attr_lookup() and all
+ callers of ntfs_{external,}attr_{find,lookup}() for the new return
+ values.
+ - Minor cleanup of fs/ntfs/inode.c::ntfs_init_locked_inode().
+
+2.1.17 - Fix bugs in mount time error code paths and other updates.
+
+ - Implement bitmap modification code (fs/ntfs/bitmap.[hc]). This
+ includes functions to set/clear a single bit or a run of bits.
+ - Add fs/ntfs/attrib.[hc]::ntfs_find_vcn() which returns the locked
+ runlist element containing a particular vcn. It also takes care of
+ mapping any needed runlist fragments.
+ - Implement cluster (de-)allocation code (fs/ntfs/lcnalloc.[hc]).
+ - Load attribute definition table from $AttrDef at mount time.
+ - Fix bugs in mount time error code paths involving (de)allocation of
+ the default and volume upcase tables.
+ - Remove ntfs_nr_mounts as it is no longer used.
+
+2.1.16 - Implement access time updates, file sync, async io, and read/writev.
+
+ - Add support for readv/writev and aio_read/aio_write (fs/ntfs/file.c).
+ This is done by setting the appropriate file operations pointers to
+ the generic helper functions provided by mm/filemap.c.
+ - Implement fsync, fdatasync, and msync both for files (fs/ntfs/file.c)
+ and directories (fs/ntfs/dir.c).
+ - Add support for {a,m,c}time updates to inode.c::ntfs_write_inode().
+ Note, except for the root directory and any other system files opened
+ by the user, the system files will not have their access times
+ updated as they are only accessed at the inode level an hence the
+ file level functions which cause the times to be updated are never
+ invoked.
+
+2.1.15 - Invalidate quotas when (re)mounting read-write.
+
+ - Add new element itype.index.collation_rule to the ntfs inode
+ structure and set it appropriately in ntfs_read_locked_inode().
+ - Implement a new inode type "index" to allow efficient access to the
+ indices found in various system files and adapt inode handling
+ accordingly (fs/ntfs/inode.[hc]). An index inode is essentially an
+ attribute inode (NInoAttr() is true) with an attribute type of
+ AT_INDEX_ALLOCATION. As such, it is no longer allowed to call
+ ntfs_attr_iget() with an attribute type of AT_INDEX_ALLOCATION as
+ there would be no way to distinguish between normal attribute inodes
+ and index inodes. The function to obtain an index inode is
+ ntfs_index_iget() and it uses the helper function
+ ntfs_read_locked_index_inode(). Note, we do not overload
+ ntfs_attr_iget() as indices consist of multiple attributes so using
+ ntfs_attr_iget() to obtain an index inode would be confusing.
+ - Ensure that there is no overflow when doing page->index <<
+ PAGE_CACHE_SHIFT by casting page->index to s64 in fs/ntfs/aops.c.
+ - Use atomic kmap instead of kmap() in fs/ntfs/aops.c::ntfs_read_page()
+ and ntfs_read_block().
+ - Use case sensitive attribute lookups instead of case insensitive ones.
+ - Lock all page cache pages belonging to mst protected attributes while
+ accessing them to ensure we never see corrupt data while the page is
+ under writeout.
+ - Add framework for generic ntfs collation (fs/ntfs/collation.[hc]).
+ We have ntfs_is_collation_rule_supported() to check if the collation
+ rule you want to use is supported and ntfs_collation() which actually
+ collates two data items. We currently only support COLLATION_BINARY
+ and COLLATION_NTOFS_ULONG but support for other collation rules will
+ be added as the need arises.
+ - Add a new type, ntfs_index_context, to allow retrieval of an index
+ entry using the corresponding index key. To get an index context,
+ use ntfs_index_ctx_get() and to release it, use ntfs_index_ctx_put().
+ This also adds a new slab cache for the index contexts. To lookup a
+ key in an index inode, use ntfs_index_lookup(). After modifying an
+ index entry, call ntfs_index_entry_flush_dcache_page() followed by
+ ntfs_index_entry_mark_dirty() to ensure the changes are written out
+ to disk. For details see fs/ntfs/index.[hc]. Note, at present, if
+ an index entry is in the index allocation attribute rather than the
+ index root attribute it will not be written out (you will get a
+ warning message about discarded changes instead).
+ - Load the quota file ($Quota) and check if quota tracking is enabled
+ and if so, mark the quotas out of date. This causes windows to
+ rescan the volume on boot and update all quota entries.
+ - Add a set_page_dirty address space operation for ntfs_m[fs]t_aops.
+ It is simply set to __set_page_dirty_nobuffers() to make sure that
+ running set_page_dirty() on a page containing mft/ntfs records will
+ not affect the dirty state of the page buffers.
+ - Add fs/ntfs/index.c::__ntfs_index_entry_mark_dirty() which sets all
+ buffers that are inside the ntfs record in the page dirty after which
+ it sets the page dirty. This allows ->writepage to only write the
+ dirty index records rather than having to write all the records in
+ the page. Modify fs/ntfs/index.h::ntfs_index_entry_mark_dirty() to
+ use this rather than __set_page_dirty_nobuffers().
+ - Implement fs/ntfs/aops.c::ntfs_write_mst_block() which enables the
+ writing of page cache pages belonging to mst protected attributes
+ like the index allocation attribute in directory indices and other
+ indices like $Quota/$Q, etc. This means that the quota is now marked
+ out of date on all volumes rather than only on ones where the quota
+ defaults entry is in the index root attribute of the $Quota/$Q index.
+
+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 runlist 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 runlist merging code (fs/ntfs/attrib.c) in sync with
+ current userspace ntfs library code. This means that if a merge
+ fails the original runlists 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 runlist 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 runlist 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 runlist 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 runlist 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 runlists
+ 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 runlists.
+ - 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 runlists, attrib.c::merge_run_lists() and its
+ helpers. (Richard Russon)
+ - Attribute lists part 2, attribute extents and multi part runlists:
+ enable proper support for LCN_RL_NOT_MAPPED and automatic mapping of
+ further runlist 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 runlist 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 runlist
+ argument, and invokes attrib.c::merge_run_lists() to merge the old
+ and the new runlists.
+ - Removed attrib.c::find_first_attr().
+ - Implemented loading of attribute list and complete runlist 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 runlist 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.