The patch titled
Subject: writeback: rename nr_reclaimable to nr_dirty in balance_dirty_pages
has been added to the -mm mm-unstable branch. Its filename is
writeback-rename-nr_reclaimable-to-nr_dirty-in-balance_dirty_pages.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/writeback-rename-nr_reclaimable-to-nr_dirty-in-balance_dirty_pages.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: rename nr_reclaimable to nr_dirty in balance_dirty_pages
Date: Tue, 23 Apr 2024 00:48:08 +0800
Commit 8d92890bd6b85 ("mm/writeback: discard NR_UNSTABLE_NFS, use
NR_WRITEBACK instead") removed NR_UNSTABLE_NFS and nr_reclaimable only
contains dirty page now. Rename nr_reclaimable to nr_dirty properly.
Link: https://lkml.kernel.org/r/20240422164808.13627-5-shikemeng@xxxxxxxxxxxxxxx
Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
Acked-by: Tejun Heo <tj@xxxxxxxxxx>
Cc: Brian Foster <bfoster@xxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: David Sterba <dsterba@xxxxxxxx>
Cc: Mateusz Guzik <mjguzik@xxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page-writeback.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/mm/page-writeback.c~writeback-rename-nr_reclaimable-to-nr_dirty-in-balance_dirty_pages
+++ a/mm/page-writeback.c
@@ -1694,7 +1694,7 @@ static int balance_dirty_pages(struct bd
struct dirty_throttle_control * const mdtc = mdtc_valid(&mdtc_stor) ?
&mdtc_stor : NULL;
struct dirty_throttle_control *sdtc;
- unsigned long nr_reclaimable; /* = file_dirty */
+ unsigned long nr_dirty;
long period;
long pause;
long max_pause;
@@ -1715,9 +1715,9 @@ static int balance_dirty_pages(struct bd
unsigned long m_thresh = 0;
unsigned long m_bg_thresh = 0;
- nr_reclaimable = global_node_page_state(NR_FILE_DIRTY);
+ nr_dirty = global_node_page_state(NR_FILE_DIRTY);
gdtc->avail = global_dirtyable_memory();
- gdtc->dirty = nr_reclaimable + global_node_page_state(NR_WRITEBACK);
+ gdtc->dirty = nr_dirty + global_node_page_state(NR_WRITEBACK);
domain_dirty_limits(gdtc);
@@ -1768,7 +1768,7 @@ static int balance_dirty_pages(struct bd
* In normal mode, we start background writeout at the lower
* background_thresh, to keep the amount of dirty memory low.
*/
- if (!laptop_mode && nr_reclaimable > gdtc->bg_thresh &&
+ if (!laptop_mode && nr_dirty > gdtc->bg_thresh &&
!writeback_in_progress(wb))
wb_start_background_writeback(wb);
_
Patches currently in -mm which might be from shikemeng@xxxxxxxxxxxxxxx are
writeback-collect-stats-of-all-wb-of-bdi-in-bdi_debug_stats_show.patch
writeback-support-retrieving-per-group-debug-writeback-stats-of-bdi.patch
writeback-add-wb_monitorpy-script-to-monitor-writeback-info-on-bdi.patch
writeback-rename-nr_reclaimable-to-nr_dirty-in-balance_dirty_pages.patch
