mm: refactor readahead defines in mm.h

[linux-2.6-microblaze.git] / include / linux / mm.h

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 5801ee8..7676974 100644 (file)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -26,6 +26,7 @@
 #include <linux/page_ref.h>
 #include <linux/memremap.h>
 #include <linux/overflow.h>
+#include <linux/sizes.h>
 
 struct mempolicy;
 struct anon_vma;
@@ -2402,8 +2403,7 @@ int __must_check write_one_page(struct page *page);
 void task_dirty_inc(struct task_struct *tsk);
 
 /* readahead.c */
-#define VM_MAX_READAHEAD       128     /* kbytes */
-#define VM_MIN_READAHEAD       16      /* kbytes (includes current page) */
+#define VM_READAHEAD_PAGES     (SZ_128K / PAGE_SIZE)
 
 int force_page_cache_readahead(struct address_space *mapping, struct file *filp,
                        pgoff_t offset, unsigned long nr_to_read);