1 files changed, 3 insertions, 0 deletions

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 7300c9d5e1d9..cdc377c456c0 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -241,6 +241,9 @@ static unsigned long global_dirtyable_memory(void)
         if (!vm_highmem_is_dirtyable)
                 x -= highmem_dirtyable_memory(x);
 
+        /* Subtract min_free_kbytes */
+        x -= min_t(unsigned long, x, min_free_kbytes >> (PAGE_SHIFT - 10));
+
         return x + 1;   /* Ensure that we never return 0 */
 }