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 <shr@xxxxxxxxxxxx>
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/20221119005215.3052436-13-shr@xxxxxxxxxxxx
Signed-off-by: Stefan Roesch <shr@xxxxxxxxxxxx>
Cc: Chris Mason <clm@xxxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/backing-dev.h | 1 +
mm/page-writeback.c | 14 ++++++++++++++
2 files changed, 15 insertions(+)
--- a/include/linux/backing-dev.h~mm-add-bdi_set_min_bytes-function
+++ a/include/linux/backing-dev.h
@@ -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);
--- a/mm/page-writeback.c~mm-add-bdi_set_min_bytes-function
+++ a/mm/page-writeback.c
@@ -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 shr@xxxxxxxxxxxx are
