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Subject[PATCH v2 6/6] writeback: define GDTC_INIT_NO_WB to null
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We never use gdtc->dom set with GDTC_INIT_NO_WB, just remove unneeded
initialization of gdtc->dom for now.

Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
---
mm/page-writeback.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 211565d01600..2fd2fd2e1932 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -147,6 +147,7 @@ struct dirty_throttle_control {
* reflect changes in current writeout rate.
*/
#define VM_COMPLETIONS_PERIOD_LEN (3*HZ)
+#define GDTC_INIT_NO_WB

#ifdef CONFIG_CGROUP_WRITEBACK

@@ -154,8 +155,6 @@ struct dirty_throttle_control {
.dom = &global_wb_domain, \
.wb_completions = &(__wb)->completions

-#define GDTC_INIT_NO_WB .dom = &global_wb_domain
-
#define MDTC_INIT(__wb, __gdtc) .wb = (__wb), \
.dom = mem_cgroup_wb_domain(__wb), \
.wb_completions = &(__wb)->memcg_completions, \
@@ -210,7 +209,6 @@ static void wb_min_max_ratio(struct bdi_writeback *wb,

#define GDTC_INIT(__wb) .wb = (__wb), \
.wb_completions = &(__wb)->completions
-#define GDTC_INIT_NO_WB
#define MDTC_INIT(__wb, __gdtc)

static bool mdtc_valid(struct dirty_throttle_control *dtc)
--
2.30.0

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