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mm-add-bdi_set_max_ratio_no_scale-function.patch removed from -mm tree

merged mm-stable Andrew Morton 1 participant 1 message Dec 1, 2022

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The quilt patch titled
Subject: mm: add bdi_set_max_ratio_no_scale() function
has been removed from the -mm tree. Its filename was
mm-add-bdi_set_max_ratio_no_scale-function.patch

This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Stefan Roesch <[email protected]>
Subject: mm: add bdi_set_max_ratio_no_scale() function
Date: Fri, 18 Nov 2022 16:52:10 -0800

This introduces bdi_set_max_ratio_no_scale(). It uses the max granularity for the ratio. This function by the new sysfs knob max_ratio_fine.

Link https://lkml.kernel.org/r/[email protected] open here
Signed-off-by Stefan Roesch <[email protected]>
Cc Chris Mason <[email protected]>
Cc Jens Axboe <[email protected]>
Signed-off-by Andrew Morton <[email protected]>

---

 include/linux/backing-dev.h |    1 +
 mm/page-writeback.c         |   11 ++++++++---
 2 files changed, 9 insertions(+), 3 deletions(-)
include/linux/backing-dev.h renamed from include/linux/backing-dev.h~mm-add-bdi_set_max_ratio_no_scale-function +1 -0
@@ -109,6 +109,7 @@ u64 bdi_get_min_bytes(struct backing_dev
 u64 bdi_get_max_bytes(struct backing_dev_info *bdi);
 int bdi_set_min_ratio(struct backing_dev_info *bdi, unsigned int min_ratio);
 int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio);
+int bdi_set_max_ratio_no_scale(struct backing_dev_info *bdi, unsigned int max_ratio);
 int bdi_set_min_bytes(struct backing_dev_info *bdi, u64 min_bytes);
 int bdi_set_max_bytes(struct backing_dev_info *bdi, u64 max_bytes);
 int bdi_set_strict_limit(struct backing_dev_info *bdi, unsigned int strict_limit);
mm/page-writeback.c renamed from mm/page-writeback.c~mm-add-bdi_set_max_ratio_no_scale-function +8 -3
@@ -719,6 +719,9 @@ static int __bdi_set_max_ratio(struct ba
 {
 	int ret = 0;
 
+	if (max_ratio > 100 * BDI_RATIO_SCALE)
+		return -EINVAL;
+
 	spin_lock_bh(&bdi_lock);
 	if (bdi->min_ratio > max_ratio) {
 		ret = -EINVAL;

@@ -731,6 +734,11 @@ static int __bdi_set_max_ratio(struct ba
 	return ret;
 }
 
+int bdi_set_max_ratio_no_scale(struct backing_dev_info *bdi, unsigned int max_ratio)
+{
+	return __bdi_set_max_ratio(bdi, max_ratio);
+}
+
 int bdi_set_min_ratio(struct backing_dev_info *bdi, unsigned int min_ratio)
 {
 	return __bdi_set_min_ratio(bdi, min_ratio * BDI_RATIO_SCALE);

@@ -738,9 +746,6 @@ int bdi_set_min_ratio(struct backing_dev
 
 int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio)
 {
-	if (max_ratio > 100)
-		return -EINVAL;
-
 	return __bdi_set_max_ratio(bdi, max_ratio * BDI_RATIO_SCALE);
 }
 EXPORT_SYMBOL(bdi_set_max_ratio);

_

Patches currently in -mm which might be from [email protected] are