diff options
Diffstat (limited to 'mm/page-writeback.c')
| -rw-r--r-- | mm/page-writeback.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index cefee7210d83..3d151e7a9b6c 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -750,6 +750,20 @@ u64 bdi_get_min_bytes(struct backing_dev_info *bdi) 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); |