writeback: moving expire targets for background/kupdate works v2
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- v1 Latest6 patches 22 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/6 | writeback: pass writeback_control down to move_expired_inodes()fs/ | +8 | 2 replies | |
| 2/6 | writeback: introduce writeback_control.inodes_cleanedfs/ include/ | +5 | 4 replies | |
| 3/6 | writeback: try more writeback as long as something was writtenfs/ | +8 | 0 replies | |
| 4/6 | writeback: the kupdate expire timestamp should be a moving targetfs/ | +6 | 0 replies | |
| 5/6 | writeback: sync expired inodes first in background writebackfs/ | +15 | 9 replies | |
| 6/6 | writeback: refill b_io iff emptyfs/ | +3 | 10 replies |
Reviews trailers per patch
5 of 6 patches have a Reviewed-by or Acked-by.
| Patch | Jan Kara | Mel Gorman |
|---|---|---|
| 1/6 | A-b | A-b |
| 2/6 | A-b | A-b |
| 3/6 | ||
| 4/6 | A-b | A-b |
| 5/6 | A-b | |
| 6/6 | A-b |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH 0/6] writeback: moving expire targets for background/kupdate works v2
Andrew,
This aims to reduce possible pageout() calls by making the flusher concentrate a bit more on old/expired dirty inodes.
Rationals and benchmark numbers are added in patches 05, 06.
It runs fine on simple workloads over ext3/4, xfs, btrfs and NFS.
code refactor
[PATCH 1/6] writeback: pass writeback_control down to move_expired_inodes()
loop condition fixes
[PATCH 2/6] writeback: introduce writeback_control.inodes_cleaned [PATCH 3/6] writeback: try more writeback as long as something was written
make dirty expire time a moving target
[PATCH 4/6] writeback: the kupdate expire timestamp should be a moving target [PATCH 5/6] writeback: sync expired inodes first in background writeback
consistent requeue policy
it's not an integral part of this patchset, however do depends on patch 03
[PATCH 6/6] writeback: refill b_io iff empty
Thanks,
Fengguang