This splits off __bdi_set_max_ratio() from bdi_set_max_ratio().
__bdi_set_max_ratio() will also be called from bdi_set_max_bytes(),
which will be introduced in the next patch.
Signed-off-by: Stefan Roesch <shr@xxxxxxxxxxxx>
---
mm/page-writeback.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 719404e0d03d..e74ef596dc27 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -692,14 +692,10 @@ int bdi_set_min_ratio(struct backing_dev_info *bdi, unsigned int min_ratio)
return ret;
}
-int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned max_ratio)
+static int __bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio)
{
int ret = 0;
- if (max_ratio > 100)
- return -EINVAL;
- max_ratio *= BDI_RATIO_SCALE;
-
spin_lock_bh(&bdi_lock);
if (bdi->min_ratio > max_ratio) {
ret = -EINVAL;
@@ -711,6 +707,14 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned max_ratio)
return ret;
}
+
+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);
u64 bdi_get_max_bytes(struct backing_dev_info *bdi)
--
2.30.2
