The patch titled
Subject: writeback-factor-out-balance_wb_limits-to-remove-repeated-code-v3
has been added to the -mm mm-unstable branch. Its filename is
writeback-factor-out-balance_wb_limits-to-remove-repeated-code-v3.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/writeback-factor-out-balance_wb_limits-to-remove-repeated-code-v3.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
Subject: writeback-factor-out-balance_wb_limits-to-remove-repeated-code-v3
Date: Thu, 6 Jun 2024 11:35:47 +0800
add comment
Link: https://lkml.kernel.org/r/20240606033547.344376-1-shikemeng@xxxxxxxxxxxxxxx
Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page-writeback.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/mm/page-writeback.c~writeback-factor-out-balance_wb_limits-to-remove-repeated-code-v3
+++ a/mm/page-writeback.c
@@ -1783,6 +1783,10 @@ static inline void wb_dirty_exceeded(str
((dtc->dirty > dtc->thresh) || strictlimit);
}
+/*
+ * The limits fileds dirty_exceeded and pos_ratio won't be updated if wb is
+ * in freerun state. Please don't use these invalid fileds in freerun case.
+ */
static void balance_wb_limits(struct dirty_throttle_control *dtc,
bool strictlimit)
{
_
Patches currently in -mm which might be from shikemeng@xxxxxxxxxxxxxxx are
writeback-factor-out-wb_bg_dirty_limits-to-remove-repeated-code.patch
writeback-add-general-function-domain_dirty_avail-to-calculate-dirty-and-avail-of-domain.patch
writeback-factor-out-domain_over_bg_thresh-to-remove-repeated-code.patch
writeback-factor-out-code-of-freerun-to-remove-repeated-code.patch
writeback-factor-out-wb_dirty_freerun-to-remove-more-repeated-freerun-code.patch
writeback-factor-out-balance_domain_limits-to-remove-repeated-code.patch
writeback-factor-out-wb_dirty_exceeded-to-remove-repeated-code.patch
writeback-factor-out-balance_wb_limits-to-remove-repeated-code.patch
writeback-factor-out-balance_wb_limits-to-remove-repeated-code-v3.patch
