From 22be093ffb403a1c474037939ca9b88b1ee39f77 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Thu, 23 Sep 2010 15:01:41 +0200 Subject: readahead: implement minimal readahead logic based on fanotify(), mincore() and readahead() --- src/macro.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'src/macro.h') diff --git a/src/macro.h b/src/macro.h index 44b481775d..12ccbb1513 100644 --- a/src/macro.h +++ b/src/macro.h @@ -27,6 +27,8 @@ #include #include +#define PAGE_SIZE 4096 + #define _printf_attr_(a,b) __attribute__ ((format (printf, a, b))) #define _sentinel_ __attribute__ ((sentinel)) #define _noreturn_ __attribute__((noreturn)) @@ -49,6 +51,10 @@ static inline size_t ALIGN(size_t l) { return ((l + sizeof(void*) - 1) & ~(sizeof(void*) - 1)); } +static inline size_t PAGE_ALIGN(size_t l) { + return ((l + PAGE_SIZE - 1) & ~(PAGE_SIZE -1)); +} + #define ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0])) #define MAX(a,b) \ -- cgit v1.2.3-54-g00ecf