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writeback: factor out balance_domain_limits to remove repeated code

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Factor out balance_domain_limits to remove repeated code.

Link: https://lkml.kernel.org/r/20240514125254.142203-7-shikemeng@huaweicloud.com
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Kemeng Shi 2024-05-14 20:52:52 +08:00 committed by Andrew Morton
parent 2530e2399b
commit 8c9918dedf
1 changed files with 10 additions and 7 deletions
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17
mm/page-writeback.c
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@ -1746,6 +1746,14 @@ static void domain_dirty_freerun(struct dirty_throttle_control *dtc,
dtc->freerun = dirty <= dirty_freerun_ceiling(thresh, bg_thresh);
}
static void balance_domain_limits(struct dirty_throttle_control *dtc,
bool strictlimit)
{
domain_dirty_avail(dtc, true);
domain_dirty_limits(dtc);
domain_dirty_freerun(dtc, strictlimit);
}
static void wb_dirty_freerun(struct dirty_throttle_control *dtc,
bool strictlimit)
{
@ -1802,18 +1810,13 @@ static int balance_dirty_pages(struct bdi_writeback *wb,
nr_dirty = global_node_page_state(NR_FILE_DIRTY);
domain_dirty_avail(gdtc, true);
domain_dirty_limits(gdtc);
domain_dirty_freerun(gdtc, strictlimit);
balance_domain_limits(gdtc, strictlimit);
if (mdtc) {
/*
* If @wb belongs to !root memcg, repeat the same
* basic calculations for the memcg domain.
*/
domain_dirty_avail(mdtc, true);
domain_dirty_limits(mdtc);
domain_dirty_freerun(mdtc, strictlimit);
balance_domain_limits(mdtc, strictlimit);
}
/*