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mm-add-bdi_set_min_bytes-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_min_bytes() function
has been removed from the -mm tree. Its filename was
mm-add-bdi_set_min_bytes-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_min_bytes() function
Date: Fri, 18 Nov 2022 16:52:07 -0800

This introduces the bdi_set_min_bytes() function. The min_bytes function does not store the min_bytes value. Instead it converts the min_bytes value into the corresponding ratio value.

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         |   14 ++++++++++++++
 2 files changed, 15 insertions(+)
include/linux/backing-dev.h renamed from include/linux/backing-dev.h~mm-add-bdi_set_min_bytes-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_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_min_bytes-function +14 -0
@@ -750,6 +750,20 @@ u64 bdi_get_min_bytes(struct backing_dev
 	return bdi_get_bytes(bdi->min_ratio);
 }
 
+int bdi_set_min_bytes(struct backing_dev_info *bdi, u64 min_bytes)
+{
+	int ret;
+	unsigned long pages = min_bytes >> PAGE_SHIFT;
+	unsigned long min_ratio;
+
+	ret = bdi_check_pages_limit(pages);
+	if (ret)
+		return ret;
+
+	min_ratio = bdi_ratio_from_pages(pages);
+	return __bdi_set_min_ratio(bdi, min_ratio);
+}
+
 u64 bdi_get_max_bytes(struct backing_dev_info *bdi)
 {
 	return bdi_get_bytes(bdi->max_ratio);

_

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