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Diffstat (limited to 'drivers/staging/zcache/TODO')
| -rw-r--r-- | drivers/staging/zcache/TODO | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/drivers/staging/zcache/TODO b/drivers/staging/zcache/TODO deleted file mode 100644 index d0c18fa95743..000000000000 --- a/drivers/staging/zcache/TODO +++ /dev/null @@ -1,64 +0,0 @@ - -** ZCACHE PLAN FOR PROMOTION FROM STAGING ** - -Last updated: Feb 13, 2013 - -PLAN STEPS - -1. merge zcache and ramster to eliminate horrible code duplication -2. converge on a predictable, writeback-capable allocator -3. use debugfs instead of sysfs (per akpm feedback in 2011) -4. zcache side of cleancache/mm WasActive patch -5. zcache side of frontswap exclusive gets -6. zcache must be able to writeback to physical swap disk - (per Andrea Arcangeli feedback in 2011) -7. implement adequate policy for writeback -8. frontswap/cleancache work to allow zcache to be loaded - as a module -9. get core mm developer to review -10. incorporate feedback from review -11. get review/acks from 1-2 additional mm developers -12. incorporate any feedback from additional mm reviews -13. propose location/file-naming in mm tree -14. repeat 9-13 as necessary until akpm is happy and merges - -STATUS/OWNERSHIP - -1. DONE as part of "new" zcache; in staging/zcache for 3.9 -2. DONE as part of "new" zcache (cf zbud.[ch]); in staging/zcache for 3.9 - (this was the core of the zcache1 vs zcache2 flail) -3. DONE as part of "new" zcache; in staging/zcache for 3.9 -4. DONE (w/caveats) as part of "new" zcache; per cleancache performance - feedback see https://lkml.org/lkml/2011/8/17/351, in - staging/zcache for 3.9; dependent on proposed mm patch, see - https://lkml.org/lkml/2012/1/25/300 -5. DONE as part of "new" zcache; performance tuning only, - in staging/zcache for 3.9; dependent on frontswap patch - merged in 3.7 (33c2a174) -6. DONE (w/caveats), prototyped as part of "new" zcache, had - bad memory leak; reimplemented to use sjennings clever tricks - and proposed mm patches with new version in staging/zcache - for 3.9, see https://lkml.org/lkml/2013/2/6/437; -7. PROTOTYPED as part of "new" zcache; in staging/zcache for 3.9; - needs more review (plan to discuss at LSF/MM 2013) -9. IN PROGRESS; owned by Konrad Wilk; Mel Gorman provided - great feedback in August 2012 (unfortunately of "old" - zcache) -11. NOT DONE; owned by Konrad Wilk and Bob Liu -12. TBD (depends on quantity of feedback) -13. PROPOSED; one suggestion proposed by Dan; needs more ideas/feedback -14. TBD (depends on feedback) - -WHO NEEDS TO AGREE - -Not sure. Seth Jennings is now pursuing a separate but semi-parallel -track. Akpm clearly has to approve for any mm merge to happen. Minchan -Kim has interest but may be happy if/when zram is merged into mm. Konrad -Wilk may be maintainer if akpm decides compression is maintainable -separately from the rest of mm. (More LSF/MM 2013 discussion.) - -ZCACHE FUTURE NEW FUNCTIONALITY - -A. Support zsmalloc as an alternative high-density allocator - (See https://lkml.org/lkml/2013/1/23/511) -B. Possibly support three zbuds per pageframe when space allows |