readahead: remove several readahead macros

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / mm / readahead.c

diff --git a/mm/readahead.c b/mm/readahead.c
index fd588ffc508637d8bbf17b9905e24e509aa42369..fc52f9f1b80cb08695c2379ed8faf5d761021293 100644 (file)
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -22,16 +22,8 @@ void default_unplug_io_fn(struct backing_dev_info *bdi, struct page *page)
 }
 EXPORT_SYMBOL(default_unplug_io_fn);
 
-/*
- * Convienent macros for min/max read-ahead pages.
- * Note that MAX_RA_PAGES is rounded down, while MIN_RA_PAGES is rounded up.
- * The latter is necessary for systems with large page size(i.e. 64k).
- */
-#define MAX_RA_PAGES   (VM_MAX_READAHEAD*1024 / PAGE_CACHE_SIZE)
-#define MIN_RA_PAGES   DIV_ROUND_UP(VM_MIN_READAHEAD*1024, PAGE_CACHE_SIZE)
-
 struct backing_dev_info default_backing_dev_info = {
-       .ra_pages       = MAX_RA_PAGES,
+       .ra_pages       = VM_MAX_READAHEAD * 1024 / PAGE_CACHE_SIZE,
        .state          = 0,
        .capabilities   = BDI_CAP_MAP_COPY,
        .unplug_io_fn   = default_unplug_io_fn,