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writeback: moving expire targets for background/kupdate works

Wu Fengguang linux-fsdevel linux-mm lkml 1 version In review

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  1. v1 Latest6 patches 51 repliesIn review

Patches in v1 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/6writeback: pass writeback_control down to move_expired_inodes()fs/fs-writeback.c+8 -80 replies
2/6writeback: the kupdate expire timestamp should be a moving targetfs/fs-writeback.c+9 -23 replies
3/6writeback: sync expired inodes first in background writebackfs/fs-writeback.c+18 -521 replies
4/6writeback: introduce writeback_control.inodes_cleanedfs/fs-writeback.c include/linux/writeback.h+5 -01 reply
5/6writeback: try more writeback as long as something was writtenfs/fs-writeback.c+8 -815 replies
6/6NFS: return -EAGAIN when skipped commit in nfs_commit_unstable_pages()fs/nfs/write.c+1 -13 replies

Reviews trailers per patch

4 of 6 patches have a Reviewed-by or Acked-by.

PatchJan KaraMel Gorman
1/6A-b A-b
2/6A-b A-b A-b A-b
3/6A-b
4/6A-b A-b
5/6
6/6

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.

Read the v1 thread

Cover letter [PATCH 0/6] writeback: moving expire targets for background/kupdate works

Andrew,

This aims to reduce possible pageout() calls by making the flusher concentrate a bit more on old/expired dirty inodes.

Patches 04, 05 have been updated since last post, please review. The concerns from last review have been addressed.

It runs fine on simple workloads over ext3/4, xfs, btrfs and NFS.

Trond, will you take the last patch? The fixed "bug" has no real impact for now.

make dirty expire time a moving target
[PATCH 1/6] writeback: pass writeback_control down to move_expired_inodes() [PATCH 2/6] writeback: the kupdate expire timestamp should be a moving target [PATCH 3/6] writeback: sync expired inodes first in background writeback

loop condition fixes (the most tricky part)
[PATCH 4/6] writeback: introduce writeback_control.inodes_cleaned [PATCH 5/6] writeback: try more writeback as long as something was written

NFS fix
[PATCH 6/6] NFS: return -EAGAIN when skipped commit in nfs_commit_unstable_pages()

Thanks,
Fengguang

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