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
- Enable the code for setting the NT4 compatibility flag when we start
making NTFS 1.2 specific modifications.
-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
git://git.onelab.eu / linux-2.6.git / blobdiff