1
2 - support asynchronous operation -- add a per-fs 'reserved_space' count,
3 let each outstanding write reserve the _maximum_ amount of physical
4 space it could take. Let GC flush the outstanding writes because the
5 reservations will necessarily be pessimistic. With this we could even
6 do shared writable mmap, if we can have a fs hook for do_wp_page() to
7 make the reservation.
8 - disable compression in commit_write()?
9 - fine-tune the allocation / GC thresholds
10 - chattr support - turning on/off and tuning compression per-inode
11 - checkpointing (do we need this? scan is quite fast)
12 - make the scan code populate real inodes so read_inode just after
13 mount doesn't have to read the flash twice for large files.
14 Make this a per-inode option, changable with chattr, so you can
15 decide which inodes should be in-core immediately after mount.
16 - test, test, test
17
18 - NAND flash support:
19 - almost done :)
20 - use bad block check instead of the hardwired byte check
21
22 - Optimisations:
23 - Split writes so they go to two separate blocks rather than just c->nextblock.
24 By writing _new_ nodes to one block, and garbage-collected REF_PRISTINE
25 nodes to a different one, we can separate clean nodes from those which
26 are likely to become dirty, and end up with blocks which are each far
27 closer to 100% or 0% clean, hence speeding up later GC progress dramatically.
28 - Stop keeping name in-core with struct jffs2_full_dirent. If we keep the hash in
29 the full dirent, we only need to go to the flash in lookup() when we think we've
30 got a match, and in readdir().
31 - Doubly-linked next_in_ino list to allow us to free obsoleted raw_node_refs immediately?
32 - Remove size from jffs2_raw_node_frag.
33
34 dedekind:
35 1. __jffs2_flush_wbuf() has a strange 'pad' parameter. Eliminate.
36 2. get_sb()->build_fs()->scan() path... Why get_sb() removes scan()'s crap in
37 case of failure? scan() does not clean everything. Fix.
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