writeback: tracing and wbc->nr_to_write fixes
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b4 am [email protected]Versions newest first
- v1 Latest4 patches 21 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/4 | writeback: initial tracing supportfs/ include/ include/ +1 more | +224 | 1 reply | |
| 2/4 | writeback: Add tracing to balance_dirty_pagesfs/ include/ mm/ | +86 | 0 replies | |
| 3/4 | writeback: pay attention to wbc->nr_to_write in write_cache_pagesfs/ include/ include/ +1 more | +29 | 10 replies | |
| 4/4 | xfs: remove nr_to_write writeback windup.fs/ | +0 | 2 replies |
Reviews trailers per patch
None of the 4 patches has a Reviewed-by or Acked-by of their own; the series has one for all of them.
| Patch | Jan Kara |
|---|---|
| Series | A-b |
| 1/4 | |
| 2/4 | |
| 3/4 | |
| 4/4 |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH 0/4] writeback: tracing and wbc->nr_to_write fixes
This series contains the initial writeback tracing patches from Jens, as well as the extensions I added to provide visibility into writeback control structures as the are used by the writeback code. The visibility given is sufficient to understand what is happening in the writeback path - what path is writing data, what path is blocking on congestion, etc, and to determine the differences in behaviour for different sync modes and calling contexts. This tracing really needs to be integrated into mainline so that anyone can improve the tracing as they use it to track down problems in our convoluted writeback paths.
The remaining patches are fixes to problems that the new tracing highlighted.
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