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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-06 13:08:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-06 13:08:35 -0700 |
| commit | 07837831047fb72856d1f61a726a4094397facd8 (patch) | |
| tree | b4a0e4d8486969c8c1123b1d3399812a19d62eaa | |
| parent | 3f86ba5d0c1c34a4469da1f62d3707e32a20d6ba (diff) | |
| parent | 74d369443325063a5f0260e63971decb950fd8fa (diff) | |
| download | linux-stable-07837831047fb72856d1f61a726a4094397facd8.tar.gz linux-stable-07837831047fb72856d1f61a726a4094397facd8.tar.bz2 linux-stable-07837831047fb72856d1f61a726a4094397facd8.zip | |
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull writeback fix from Jens Axboe:
"Just a single fix for domain aware writeback, fixing a regression that
can cause balance_dirty_pages() to keep looping while not getting any
work done"
* 'for-linus' of git://git.kernel.dk/linux-block:
writeback: Fix performance regression in wb_over_bg_thresh()
| -rw-r--r-- | mm/page-writeback.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 999792d35ccc..bc5149d5ec38 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -1910,7 +1910,8 @@ bool wb_over_bg_thresh(struct bdi_writeback *wb) if (gdtc->dirty > gdtc->bg_thresh) return true; - if (wb_stat(wb, WB_RECLAIMABLE) > __wb_calc_thresh(gdtc)) + if (wb_stat(wb, WB_RECLAIMABLE) > + wb_calc_thresh(gdtc->wb, gdtc->bg_thresh)) return true; if (mdtc) { @@ -1924,7 +1925,8 @@ bool wb_over_bg_thresh(struct bdi_writeback *wb) if (mdtc->dirty > mdtc->bg_thresh) return true; - if (wb_stat(wb, WB_RECLAIMABLE) > __wb_calc_thresh(mdtc)) + if (wb_stat(wb, WB_RECLAIMABLE) > + wb_calc_thresh(mdtc->wb, mdtc->bg_thresh)) return true; } |